European Alternatives to Tomorrow.io
Looking for a European alternative to Tomorrow.io? Its subscription terms are with The Tomorrow Companies Inc., a Delaware corporation based in Boston, and are governed by Massachusetts law with disputes heard in Boston courts. The product itself is a free-to-start weather API with 60+ data layers, a forecast up to 14 days ahead and hourly and daily history up to 20 years back.
The tools below range from open-data services run by national weather bodies to commercial suppliers in Switzerland, Sweden, Finland, Austria and the Czech Republic, which publish their model sources and limits.
How we rank these tools — 4-step process
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1
European ownership, verified
The company is headquartered and incorporated in the EU, EEA, the UK, Switzerland or Israel, and processes customer data in Europe or Israel. A US parent company disqualifies a tool from this page regardless of where its servers are.
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2
Category fit and hands-on review
What the tool actually does, who it suits, and where it falls short — checked against the vendor’s own documentation, changelog and pricing page rather than its marketing copy.
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3
Compliance and pricing check
GDPR posture, hosting location and the prices quoted on this page are verified against the vendor’s public pricing before publication, and re-checked when we revisit the category.
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4
Position on this page
Placement on this page can be paid, and that can affect which tools appear here and the order they appear in. It never buys a good review: a tool that fails the checks above is not here at any price, and payment does not change the shortcomings we write about. A vendor can ask us to correct a factual error — not to remove a criticism.
Vendors can pay for visibility on this page. It never changes what an entry says about a product, including the criticism, and we earn nothing when you click through to a vendor. Vendors can pay for more visibility, higher up on the review pages; it never affects which tools are listed. Editorial policy
11 European Alternatives to Tomorrow.io
Open-Meteo
Open-source weather API merging national model data, free for non-commercial use
Stormglass
Weather and marine API with euro plans from €19 per month
Meteomatics
St. Gallen API with 1,800+ parameters and 1 km Europe model
Windy API
Point, map and webcam APIs from the makers of Windy.com
meteoblue
Basel weather APIs with a free one-year trial on registration
Foreca
Finnish weather provider with API, trial and media products
weatherstack
Vienna-run JSON weather API with dollar plans from $9.99
MET Norway
Free Norwegian Meteorological Institute APIs behind Yr
Met Office Weather DataHub
UK Met Office service for site-specific forecasts and model files
DWD Open Data
German weather service server with forecasts, radar and climate files
Meteostat
German open platform for historical weather and climate data
Key takeaways
- Tomorrow.io's subscription terms are with The Tomorrow Companies Inc., a Delaware corporation in Boston, under Massachusetts law with Boston courts.
- Meteomatics AG in St. Gallen and meteoblue AG in Basel are Swiss suppliers; Stormglass (Sweden), Foreca (Finland), Windy (Czech Republic) and weatherstack (Austria) are EU contracting parties.
- Open-Meteo is the only tool here that lets you run the API yourself: its server code can be started with Docker or Ubuntu packages.
- Stormglass lists €19, €49 and €129 plans, Windy lists €990 a year, and weatherstack lists $9.99 and $49.99 a month, and Tomorrow.io's paid prices were not on the pages read for this comparison.
- MET Norway, DWD Open Data and Meteostat cost nothing for the data, but none of them promises uptime.
Why people leave Tomorrow.io
Tomorrow.io is a weather API that a developer can start using without a sales call. According to the vendor's product description it offers more than 60 data layers, forecasts up to 14 days ahead and hourly and daily history going back up to 20 years. That is an easy product to prototype on: one key, one JSON shape and no procurement step before the first request.
The legal side is less visible from a code editor. The subscription terms, last updated on 28 October 2026, are with The Tomorrow Companies Inc., a Delaware corporation with its principal place of business at 9 Channel Center Street in Boston. Massachusetts law governs them and the competent courts in Boston have exclusive jurisdiction. A buyer in Vienna or Helsinki who signs them contracts with a US company.
People who look beyond Tomorrow.io rarely start from the court clause. They start from a budget meeting about a renewal, a procurement questionnaire that asks where the supplier is established, or a team that realises the free trial account they built a prototype on cannot be used commercially. This page lists eleven European routes and says plainly where each one is weaker than the American product.
- The contract is Massachusetts law and Boston courts Against a Swiss, Swedish or Czech supplier whose terms apply local law, the Tomorrow.io subscription terms name the Commonwealth of Massachusetts as governing law and give the competent courts in Boston exclusive jurisdiction, apart from interim relief for confidentiality or licence breaches. For a European public body or a company with a strict vendor policy, a dispute would be fought in the United States.
- Renewal and fee terms favour the vendor The terms renew a subscription automatically for a period of equal length unless one party gives 30 days' notice, and they state that payment obligations are non-cancellable and non-refundable regardless of use. Fee increases can be announced at any time, though they take effect only at the next renewal. Stormglass and weatherstack publish monthly prices instead, which makes a cancellation date easier to plan around.
- Free accounts cannot ship a commercial app The terms prohibit commercial use in evaluation, proof-of-concept and self-generated accounts created on the website. A prototype built on the free start therefore has to be moved onto a signed order before it can serve customers. Open-Meteo has the same split between non-commercial and commercial use, but publishes it plainly on its pricing page and offers a self-hosted server as an exit.
- Attribution and data deletion sit with the customer Wherever the Datafeed is shown, the terms require a legible "Powered by Tomorrow.io" message linking to the vendor's site. On expiry the company may delete subscriber data from the platform, and the customer is solely responsible for its own back-ups. Source-based services such as MET Norway ask for credit too, but they publish the data under an open licence you can keep.
What you have to replace, not just match
Moving off Tomorrow.io means replacing a bundle, not an endpoint. The same account covers a dashboard, the API, a separate data portal and professional services, according to the terms.
A European weather API will usually give you the forecast call and nothing more, so decide first which of those pieces you actually used. If your code only asks for hourly temperature, wind and precipitation, almost every tool on this page can stand in. If it relies on the layer catalogue, you have to map each field by hand.
The data model matters more than the price. Tomorrow.io describes more than 60 layers and history of up to 20 years. Meteomatics reaches back to 1940 and lists more than 1,800 parameters. Open-Meteo, MET Norway and DWD expose national model output with their own parameter names, and Meteostat gives station records only. Write down which fields feed alerts, maps or billing logic, because those are the ones that break quietly when a unit or a time step changes.
Finally, plan for coverage and service levels. MET Norway and DWD Open Data say plainly that delivery is not guaranteed, Met Office DataHub is ordered through plans whose prices were not visible, and Windy's testing key deliberately returns shuffled data. If an alert system depends on the feed, pair a free source with a commercial supplier instead of treating one open endpoint as a contract.
The alternatives compared
| Position | Tool | Headquarters | Pricing | Jurisdiction |
|---|---|---|---|---|
| #1 | Open-Meteo | Bürglen (UR), Switzerland | No charge for non-commercial use up to 10,000 calls a day; commercial tiers named Standard (1M calls a month), Professional (5M) and Enterprise (50M+), with the amounts missing from the pricing page as fetched | Switzerland (covered by an adequacy decision, not in the EEA) |
| #2 | Stormglass | Sweden (city not given on the pages read) | Four rungs: a free plan of 10 requests a day (not commercial), then €19, €49 and €129 a month; annual billing takes 10% off; enterprise terms by quote | EU (Sweden) |
| #3 | Meteomatics | St. Gallen, Switzerland | Quoted per customer, depending on usage, data needs and service level | Switzerland (covered by an adequacy decision, not in the EEA) |
| #4 | Windy API | Prague, Czech Republic | €990 a year for Point Forecast Professional; a free testing key exists; Map Forecast and Webcams are priced on separate pages | EU (Czech Republic) |
| #5 | meteoblue | Basel, Switzerland | A free API year opens on registration; paid packages did not appear on the pages read | Switzerland (covered by an adequacy decision, not in the EEA) |
| #6 | Foreca | Espoo, Finland | A free trial and a pricing page are offered; the amounts were not readable | EU (Finland) |
| #7 | weatherstack | Vienna, Austria | $0 for 100 calls a month (non-commercial), $9.99 a month for Standard and $49.99 for Professional, with a Business tier on top | EU (Austria) |
| #8 | MET Norway | Norway, Norway | No charge; the institute must be credited | Norway (EEA member, not in the EU) |
| #9 | Met Office Weather DataHub | United Kingdom, United Kingdom | Plans are ordered inside the DataHub; neither the amounts nor a free allowance appeared on the pages read | United Kingdom (covered by an adequacy decision, not in the EEA) |
| #10 | DWD Open Data | Germany, Germany | Largely free under a legal mandate, with a price list for other products | EU (Germany) |
| #11 | Meteostat | Rosbach v. d. Höhe, Germany | The data costs nothing; the terms limit fees to reproduction, delivery and maintenance | EU (Germany) |
How each alternative compares to Tomorrow.io
Open-Meteo
A Swiss, model-transparent endpoint with a self-hosting exit that Tomorrow.io does not offer
Best for: Developers who want a keyless prototype today and a commercial licence path later
Open-Meteo names the national models it merges (ECMWF, DWD, NOAA, Météo-France, KNMI, DMI, MeteoSwiss and the UK Met Office) and returns them as hourly values, with a best_match option that selects the finest model for a coordinate. Tomorrow.io presents its layers as one product, so you learn less about where a number comes from.
The company behind it is OpenMeteo GmbH in Bürglen, Switzerland. Non-commercial use is free up to 10,000 calls a day under CC-BY 4.0; commercial use needs a subscription and a dedicated endpoint. Paid prices were not visible on the pricing page as fetched, so a budget comparison needs a message to the company.
What Open-Meteo does better than Tomorrow.io
- No API key for non-commercial use
- Server code can be started on your own machine
- Every source model is named
- Website sets no cookies and does not track visitors
Where Open-Meteo is a step down from Tomorrow.io
- No uptime guarantee on the free tier
- Historical and ensemble APIs need Professional or higher
- No sea-state product like the one Stormglass sells
Standout against Tomorrow.io. Open-Meteo is the one tool where a price change can be answered by running the same API on your own server.
Stormglass
A Swedish marine-weather API priced per day in euros, with ordinary land fields included
Best for: Marine, surf, energy and agtech teams that want sea state in the same call
Stormglass sells waves, swell, currents, water temperature, sea ice and tide extremes next to temperature, wind and humidity. Against Tomorrow.io, the difference is the sea: the parameter list reads as a marine product that also covers land. Solar radiation, UV and soil moisture sit behind its wind, solar and agtech pages.
Storm Glass AB is the provider, Swedish law governs the terms and disputes go to arbitration in Stockholm. Plans cost €19, €49 and €129 a month for 500, 5,000 and 25,000 requests a day, and every plan lists all parameters. The terms let the company change or end any service at any time.
What Stormglass does better than Tomorrow.io
- Prices are published in euros
- Swedish law and Stockholm arbitration instead of Boston courts
- Wave, swell, current and tide fields
- Every plan includes all weather parameters
Where Stormglass is a step down from Tomorrow.io
- Free plan allows 10 requests a day
- 25,000 requests a day is the largest listed plan
- Documentation is client-rendered and company address was not read
Standout against Tomorrow.io. Stormglass is the tool where sea state and tide extremes come with the standard plan.
Best for: Energy, aviation, insurance and public-sector buyers who accept a quote process
Meteomatics builds a query as one URL that encodes time range, parameters, location and format, and answers in JSON, CSV, XML or NetCDF. It cites more than 110 models, including its own EURO1k and US1k forecasts at 1 km, and history back to 1940. That reaches beyond the 20 years Tomorrow.io describes.
Meteomatics AG sits at Unterstrasse 12 in St. Gallen and its privacy notice is based primarily on Swiss data protection law. The group lists subsidiaries in other countries, so check which entity signs your contract. No prices are published and the API page mentions no self-service trial.
What Meteomatics does better than Tomorrow.io
- History back to 1940 against up to 20 years
- More than 1,800 parameters in one API
- Own 1 km models for Europe and the US
- Route and polygon queries as well as points
Where Meteomatics is a step down from Tomorrow.io
- No published prices and no self-service trial mentioned
- No SLA stated on the page read
- Slower to start than a keyless endpoint
Standout against Tomorrow.io. Meteomatics is the tool where one query can cover a point, a route or a polygon, going back to 1940.
Best for: Sailing, aviation and outdoor apps that want wind data or an embeddable map
Windy API wraps the data behind the Windy.com wind map into three products: Point Forecast, Map Forecast and Webcams. Point Forecast includes wind, gusts, CAPE, cloud layers, waves, swell and several air-quality species. Where Tomorrow.io sells layers, Windy sells a visual map you control from code.
Windyty, SE is registered in Prague (Company ID 04641647) and Czech law applies. The Professional plan is €990 a year with 10,000 requests a day. The ECMWF model is excluded from point forecast for licensing reasons, and the free testing key shuffles and slightly modifies the data, so it works for development only.
What Windy API does better than Tomorrow.io
- Annual price of €990 is published
- Interactive map API in the same family
- Wave and swell parameters
- Czech registered company with its Company ID on the terms
Where Windy API is a step down from Tomorrow.io
- No ECMWF model and no past forecasts in Point Forecast
- Testing key returns deliberately degraded data
- Map and webcam API prices were not read
Standout against Tomorrow.io. Windy API is the tool on this page whose product includes a map API you control from your own code.
Best for: Developers who want to test a Swiss meteorological supplier at no cost first
meteoblue lets a registered user activate a free weather API for one year without obligation. Against Tomorrow.io's self-service start, the offer is longer but ends: after twelve months the free access stops, so the move to a paid package needs planning from the first week.
meteoblue AG's postal address is PO Box 390, CH-4005 Basel, and the footer mentions an ISO 9001 certificate. API packages, quotas, models and prices were not visible on the pages read, so this entry cannot say what year two costs. The consumer website carries advertising.
What meteoblue does better than Tomorrow.io
- A full year of free API access on registration
- Swiss company with a postal address and a data protection contact
- Climate and sector products beyond the weather API
Where meteoblue is a step down from Tomorrow.io
- No visible API prices or quotas
- Free access ends after twelve months
Standout against Tomorrow.io. meteoblue is the only commercial supplier on this page that advertises a free year of API access.
Best for: Media and consumer apps that want a European forecast supplier with direct contact
Foreca began in 1996 as Weather Service Finland and took its current name in 2001. Its API menu lists point forecasts, maps, air quality, pollen, climate data, history, warnings, marine weather, ski resorts and tropical storms. Compared with Tomorrow.io, it puts personal support ahead of the data catalogue in its own marketing.
Foreca Ltd is based at Keilaranta 1 in Espoo and describes itself as privately owned and independent. Developers can start with a free trial. Prices and the API Terms of Service could not be read, and the vendor's top-three accuracy ranking is its own claim, not checked here.
What Foreca does better than Tomorrow.io
- Finnish contracting party with a Finnish VAT number
- Pollen, ski resort and tropical storm data in the menu
- Proof-of-concept trials offered through the contact page
- Operating since 1996
Where Foreca is a step down from Tomorrow.io
- Prices and quotas could not be read
- Terms of Service not reviewed
- Some features listed without detail
Standout against Tomorrow.io. Foreca is the tool whose API menu lists both pollen and ski resorts.
Best for: Small commercial apps with a modest call volume and a cheap monthly plan
weatherstack publishes four tiers: Free with 100 calls a month, Standard at $9.99 with 50,000, Professional at $49.99 with 300,000 and a Business tier above that. Commercial use starts at Standard, which also adds historical and marine data. That makes it simple to compare numbers before you sign.
The terms name apilayer Data Products GmbH, Elisabethstrasse 15/5, Vienna, as the operator. They also limit remedies for service problems to stopping use of the API. Prices are in US dollars, which exposes a euro budget to exchange rates, and the data sources were not read.
What weatherstack does better than Tomorrow.io
- Public monthly prices with a yearly discount
- Austrian contracting entity
- Commercial use from the first paid tier
Where weatherstack is a step down from Tomorrow.io
- Dollar pricing for euro buyers
- 7-day forecast needs the Professional plan
- Remedies limited to ending use of the API
Standout against Tomorrow.io. weatherstack is the tool where a commercial licence starts at $9.99 a month.
Best for: Open-data, research and hobby projects that have a fallback source
MET Norway runs api.met.no and developer.yr.no. Location Forecast returns a forecast for any point on earth, and the same portal lists an air-quality forecast for Norwegian locations, the Frost API for observations, GRIB files, aviation forecasts and ice maps. Next to Tomorrow.io it is a public service, not a vendor, so there is nothing to sign.
Data falls under NLOD 2.0 and CC BY 4.0, with credit to the institute, and the weather icons are MIT-licensed. Users must identify themselves and avoid unnecessary traffic. The terms promise no delivery guarantees and deprecated API versions are usually terminated after about one month.
What MET Norway does better than Tomorrow.io
- No fee and no account contract
- Open licences for the data and MIT-licensed icons
- Ice maps and isobaric GRIB files for specialist uses
Where MET Norway is a step down from Tomorrow.io
- No SLA and no paid support
- Versions retire at about a month's notice
- Air quality covers Norwegian locations only
Standout against Tomorrow.io. MET Norway is the only free service on the page whose terms say plainly that it promises no delivery.
Met Office Weather DataHub
UK national weather service data sold as separate plans for forecasts, models and observations
Best for: UK-focused developers and utilities that want national weather service output
Met Office Weather DataHub splits its offer into separate services. Site-specific JSON gives hourly, three-hourly and daily GeoJSON forecasts for one coordinate, with a Blended Probabilistic Forecast listed too. Atmospheric model files come as GRIB2, and a Land Observations API gives hourly UK ground-station data.
Plans are managed with daily request limits that reset at 00:00 UTC, and atmospheric plans are metered in gigabytes. Prices and the free allowance were not visible on the pages read, and the pricing route returned a not-found notice. The UK sits outside the EU, so check transfer terms.
What Met Office Weather DataHub does better than Tomorrow.io
- Probabilistic forecast and a 2 km UK model
- Hourly UK land observations
- Standard GeoJSON for point forecasts
Where Met Office Weather DataHub is a step down from Tomorrow.io
- Prices not visible
- Observations cover the UK only
- GRIB2 files need specialist handling
Standout against Tomorrow.io. Met Office Weather DataHub is the tool that offers a 2 km UK deterministic model and hourly UK observations.
DWD Open Data
German national weather service files, mostly free by law, for teams that parse raw data
Best for: Data engineers and researchers who process radar, model and climate files themselves
DWD Open Data is a file server, not a JSON endpoint. The Deutscher Wetterdienst publishes model forecasts, radar data, observations and climate archives, with some sets available as OGC WMS and WFS services. Where Tomorrow.io returns a ready answer for a coordinate, here you read directory listings and decode grids.
The page says DWD has a legal mandate to provide its information mostly free of charge, and that service and availability levels cannot be guaranteed. Businesses that need more reliability can ask for secure access through the Geospatial Data Service. The page read does not name a licence or attribution rule.
What DWD Open Data does better than Tomorrow.io
- Official German national data at no cost
- Radar and climate archives
- RSS feed and change log for data changes
Where DWD Open Data is a step down from Tomorrow.io
- No point-forecast API
- No availability guarantee
- Licence wording not found on the page read
Standout against Tomorrow.io. DWD Open Data is the tool that gives you German radar and climate archives straight from the national weather service.
Best for: Analysts, students and researchers who need long station records
Meteostat answers one question: what was the weather at a station in the past. Access runs through a Python library, a command line tool, CSV datasets and a JSON API. Tomorrow.io offers history up to 20 years as one layer among many, while here history is the entire product.
The legal disclosure names Meteostat c/o Christian Lamprecht in Rosbach v. d. Höhe, Germany, so it is an individual-led project. Data is CC BY 4.0 and the footer credits NOAA, Deutscher Wetterdienst and Environment Canada. The terms allow access to be blocked without notice and exclude contexts where life or property may be at risk.
What Meteostat does better than Tomorrow.io
- Data is free under CC BY 4.0
- Bulk CSV datasets for offline analysis
- Sources are listed openly
Where Meteostat is a step down from Tomorrow.io
- No forecasts at all
- Access can be stopped without notice
Standout against Tomorrow.io. Meteostat is the only tool here built entirely around downloadable historical station data.
What actually breaks when you switch
The first break is usually the response shape. Tomorrow.io returns its own layer names and units, and every European service uses a different set. Open-Meteo, Stormglass and weatherstack each have their own parameter lists, MET Norway returns Location Forecast documents, and DWD gives you files. Budget a mapping layer in your code rather than changing field names in twenty places, and keep the old provider's raw output for a month so you can reconcile disagreements.
The contractual side takes longer than the code. The subscription terms renew automatically unless notice is given 30 days before the end of the term, payments are non-cancellable and fees are non-refundable, so check your renewal date before you start a parallel test.
On expiry Tomorrow.io may delete subscriber data and the customer is responsible for its own back-ups, so export what you need first. Finally, remove the "Powered by Tomorrow.io" message once it is no longer required and add whatever credit the new supplier asks for.
Can I keep the Tomorrow.io account I built my prototype on if I want to launch in the EU?
Not for commercial use. The terms state that commercial use is prohibited under evaluation, proof-of-concept and self-generated accounts, so the prototype needs a signed order or a different supplier before launch.
Treat the comparison as an engineering task. Pick ten coordinates you care about, log both APIs for a fortnight and note the differences in temperature, wind and rainfall. Open-Meteo, Stormglass and weatherstack can be tested without a sales call, Windy offers a free testing key whose data is deliberately shuffled, and meteoblue offers a free API for one year after registration.
Which of these suppliers is the closest match to a single weather API with many layers?
Meteomatics is the nearest in breadth: one REST query can name time range, parameters, location and output format, and the company cites more than 1,800 parameters and more than 110 models. The price is quoted individually, so you cannot compare it with a monthly plan before you talk to a sales contact.
For smaller feature lists the closest matches are Open-Meteo, which merges more than 30 national models into one endpoint, and Foreca, whose menu covers point forecasts, maps, air quality, pollen, history, warnings and marine weather. Foreca's prices could not be read, so ask for a quote before you budget.
Which one to pick
For a developer or a small team the practical shortlist is short. Open-Meteo gives you a keyless start and a way to host the API yourself, Stormglass fits anything near water, and weatherstack is the cheapest published commercial plan if dollar pricing is acceptable. Windy API makes sense when the map is the product. Choose on the field list you really use, not on the count of layers.
For organisations with a procurement department, Meteomatics, meteoblue and Foreca are the commercial suppliers that will sign a contract under Swiss or Finnish terms, and all three need a conversation about price. Public sources (MET Norway, DWD Open Data, Met Office DataHub and Meteostat) are good raw material, but pair them with a paid supplier whenever an outage would cost you money.
Frequently Asked Questions
It depends on the criterion. For a keyless start and a self-hosting fallback, Open-Meteo. For marine and tide data with euro pricing, Stormglass. For the widest parameter range under a Swiss contract, Meteomatics. For wind and an embeddable map, Windy API. Foreca, meteoblue and weatherstack serve commercial apps, while MET Norway, DWD Open Data, Met Office DataHub and Meteostat are public-body or open-data sources.
The subscription terms are with a US company and incorporate a product privacy policy by reference. This page did not assess the policy text, so it makes no claim about GDPR status. What it can say is that the contract is under Massachusetts law, while Stormglass, Foreca, Windy and weatherstack contract under the law of an EU member state.
Few. Open-Meteo is free only for non-commercial use, and Stormglass's free plan is marked non-commercial. MET Norway publishes forecasts under an open government licence with credit required and no delivery guarantee, and DWD makes most of its data available free of charge by legal mandate. Meteostat offers historical station data under CC BY 4.0 but no forecasts.
Meteomatics states records back to 1940, using ERA5 reanalysis combined with observations, and climate scenarios to 2100. Tomorrow.io describes history of up to 20 years. Meteostat offers long station time series as CSV datasets, and DWD Open Data holds climate archives. Open-Meteo lists historical data, but only at Professional plan level or above.
Some do. MET Norway requires credit to the institute, Meteostat data is CC BY 4.0, and Open-Meteo data is CC BY 4.0 as well. Tomorrow.io's terms ask for a "Powered by Tomorrow.io" message near its data. Stormglass, Windy and weatherstack attribution rules were not checked for this page, so read their terms before you publish.
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