🚀 New data - announcement​

• Polar 3D radar products are available via the 'Open Radar Data (ODR)' API, run by EUMETNET's MeteoGate, since 26 May 2026.

🏃‍♀️ MeteoSwiss’ Open Data Service: One Year On – A Review and Outlook​

Since the launch of our Open Data Service on 22 May 2025 (Video), new datasets have been added step by step:

• Radar Products and Local Forecast Data in September 2025,
• Climate Scenarios CH2025 in November 2025,
• Spatial Climate Analyses in April 2026 and – most recently –
• Pollen Forecast Data and KENDA-CH1 Weather Analysis Data on 21 May 2026.

The use of open weather and climate data is growing steadily, and the feedback has been very encouraging.

Behind the scenes, MeteoSwiss has invested heavily in the scalability and stability of the platform to ensure the service remains reliable and performing well – even as the volume of data and the number of users grow.

Here’s what we’ll be working on in the coming months:

• New datasets: Atmospheric Measurement Data and additional Radar Products
• Integrated monitoring of data availability
• A feature API for local forecast data (in collaboration with swisstopo)
• An EDR API for the ICON-EPS-CH1 and -CH2 numerical weather models

Find out more about the available open data and ongoing and planned developments of our service.

🚀 New data - announcement​

• Pollen parameters are available as part of the Numerical weather forecasting model ICON-CH2-EPS dataset since 21 May 2026
• Numerical weather analysis KENDA-CH1 dataset is live since 21 May 2026

MeteoSwiss blog post on these newly available open datasets: in German , French and Italian.

📝 Documentation​

• To provide adequate information about the current, upcoming, and future developments of the Open Data Service, a roadmap has been added
• It is updated at least every three months

📝 Documentation​

• To announce updates for ICON-CH1/2-EPS forecasts and log changes, a dedicated page has been added to the Open Data documentation

🚀 New data - announcement​

• Spatial Climate Analyses are expected to be available by the end of Q1-2026.
  • Precipitation, Temperature, Sunshine (C3)
  • Radiation, Clouds, Land Surface Temperature (C4)
  • Hail (C5)

🚀 New data - live​

• Local forecast data are available.

🚀 New data - announcement​

• Climate scenarios CH2025 (C8 and C9) will go live on 4 November 2025

🚀 New data - available as beta​

• Precipitation and Hail Radar Products are available as beta
• Expected to go live on 23 September 2026

📝 Incident - resolved​

• Some point data files have not been updated since 11 p.m. on 7 July 2025. We are investigating the issue with our partners and are working to resolve it.
• Since around 3:30 p.m. on 10 July 2025, the files have been correctly reintegrated into data.geo.admin.ch. Depending on the data granularity and update frequency, it will take approximately 24 hours for all files and metadata to be updated.
• 11 July 2025, 10:11 a.m.: The issue has now been resolved. All data should be updated and available again.