Free Weather API

  • Instant access valid for one year (renewable)
  • Including 5'000 API calls
  • Attractive upgrade options:
    Referral program, prepaid API calls and Enterprise API plans

Start your non-commercial project today with our Free Weather API

How to get Free Weather API

  1. Register for free on the meteoblue website
  2. Confirm non-commercial use and enable Free Weather API access
  3. Free Weather API is now ready to use

Included features

  • Free instant access to uniquely accurate weather data via an easy-to-use weather API
  • Highest accuracy is assured by proprietary nowcasting and machine learning technology
  • Profit from a wide range of weather variables and attractive visualisations
  • Tailored to non-commercial use cases like website integration, home automation, hackathons, etc.

Forecasts for up to 14 days ahead, as well as historical weather data for the past 4 days can be accessed in this way. Our configuration interface assist you to change the time zone, location, preferred format, units, forecast and history length, according to your needs. Thus, your API setup is ready in a few minutes!

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Forecast API Our recommended solution for the integration of weather data into your application

meteoblue offers numerous weather variables which are grouped into forecast packages. There are different packages for a large scope of use cases. The data packages are available in the CSV and JSON formats.

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Weather API manager Fully control your API keys, usage statistics and remaining credits

Our self-service API enables you to configure HTTP requests, maintain your API keys and to upgrade your Weather API to keep growing with your project.

100+ weather variables

  • Temperature
  • Wind speed & direction
  • Sea level pressure
  • Wetbulb temperature
  • Soil temperature
  • Solar radiation
  • Sandstorm alert
  • Freezing level height
  • Precipitation
  • Wind gusts
  • Predictability
  • Evapotranspiration
  • Soil moisture
  • Total cloud cover
  • CAPE
  • Significant wave height
  • Convective precipitation
  • Air density
  • UV Index
  • Vapour pressure deficit
  • Dewpoint temperature
  • Pollen (birch, grass, olive)
  • Lifted index
  • Seawater salinity
  • Snow fraction
  • Relative humidity
  • Sunrise and sunset
  • Leaf wetness index
  • Mean sensible heat flux
  • Air quality index
  • Convective inhibition
  • And many more...

See the technical documentation for more information about the offered weather variables.

The packages PV Pro and Wind Power, as well as a few other, advanced packages are not included in our Free Weather API offer. However, we offer a large discount for purchasing these data packages for non-commercial use cases.

Referral program

At meteoblue, we constantly strive to make our products better, so it is essential to collect and reflect the feedback from our users. That's why we launched our referral program. If you let us know what you like or dislike about our weather API, what features we should add, and how we can increase usability for you, you will receive a reward in the form of yearly renewable access and free API calls for your project.

Would you like to profit from free API access with yearly renewal and get additional meteoblue credits free of charge? Sign up for our referral program!

What we are looking for:

  • Feedback - Enable extended access by filling out a short survey
  • Links to meteoblue - Place links from your project to our website
  • Success stories - Publish blog posts describing how you implemented our API into your solution

How we reward you:

  • Additional API calls - For recommendations, backlinks and success stories we provide additional meteoblue credits

Suitable for a wide range of languages and formats

Our RESTful API is suitable for a variety of projects, and designed for a wide range of programming languages and formats:

  • C++
  • R
  • C#
  • Excel
  • ArcGIS
  • JavaScript
  • Android
  • iOS
  • Python
  • PHP
  • CSV
  • HTML
  • Java
  • JSON

Additional access options

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Business Solutions Browse our Business Solutions for commercial access

Are you looking for commercial solutions with individual pricing and attractive high-volume discounts? Do you need support and consulting, or access to more customisable endpoints such as our Maps and Dataset API? Explore our solutions for the industry:

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Website widgets Display stunning weather visualisations on your website

Would you like to bring your website to the next level by implementing top-accuracy weather data? meteoblue offers a wide range of customisable plug & play widgets.

Whether you are looking for a simple daily overview, a more detailed 3-hour visual, or weather maps – we have the right widget for you. On top of that, you can also utilise our Astronomy Widget, which is a perfect source of meteorological as well as astronomical information for both amateur and professional astronomers.

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Apply for our university program now

Our start as a company was ignited and fuelled by scientific work at the University of Basel, Switzerland. With our beginnings in mind, we have been supporting and empowering hundreds of students around the globe in conducting and completing their scientific work.

Why you should choose meteoblue


Developer program

meteoblue provides free access to weather data for developers who would like to integrate the data into their systems and applications.

Please make sure that your project meets the requirements of our developer program before sending a request.

Once you have done so, please fill out the fields below in order to apply. Our experts will reply within a few business days.

Free weather API
Historical time series

Please select at least one product.

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Research cooperation

meteoblue supports the development of scientific projects in collaboration with students and academics from all over the world with scientific best practices.

Please fill out the fields below in order to apply for our university program. Our experts will reply within a few business days.

Free weather API
Historical time series


Please select at least one product.

The form was sent successfully.

Thank you for getting in touch, our experts will contact you within a few business days.