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⚠️ Status: in preparation / change log.

MeteoSwiss - Open Data

Welcome to MeteoSwiss' Open Data documentation.

From April 2025, MeteoSwiss will make its data freely available to the public as Open Government Data (OGD). The data can be downloaded as pre-processed files.

In order to also offer the option of accessing the data at a later stage using individual queries via APIs, the necessary preparatory work is underway. As soon as introduction dates for this second type of access can be estimated, they will be communicated here.


Available Data

Category
A Ground-based Measurements
B Atmosphere Measurements
C Climate Data
D Radar Data
E Forecast Data

General Information

Terms of Use

Here you'll find information about data license and conditions for usage.

Getting Started with Download

Here you'll find information about how to download files either manually or programmatically, learn about how data files are structured (data granularities and update cycles), and how date/time, time intervals and missing values are represented.

Staying up to Date

For operational status, see Download API Status & Contact [upcoming]

geo.admin.ch's download service will not be subject to big breaking changes, because it adheres to the OGC STAC API standard. Our partner swisstopo continuously develops and improves it, so minor changes and bug fixes might change the behavior of the API. If you suspect your integration has broken due to changed behavior, check Release Notes where swisstopo announces released changes that might affect your integration.

In the event of malfunctions at ground-based stations, check for interruptions in data availability.

We keep interested parties and users up to date on our plans and changes: register for our newsletter [upcoming]

Frequently Asked Questions

Here [upcoming] you'll find answers to the most frequently asked questions.

We continuously update these based on questions received. If you cannot find an answer to your question, contact us.

Contact

If you have questions about the data, or how to use the download service, please read the Frequently Asked Questions [upcoming].

If you are unable to find the answer you are looking for, contact us: [email protected]


Understanding MeteoSwiss' Open Data

The documentations of the Open Data products linked below explain what the data represents, its models, abstractions and terminology.

⚠️ Status: We are currently setting up our service as ALPHA. Everything is subject to change without prior notice.


A - Ground-based Measurements

Dataset name Technical name latest Open Data processed latest Open Data available
A1 Automatic weather stations ogd-smn 🟢 🟡 ALPHA
A2 Automatic precipitation stations ogd-smn-precip 🟢 🟡 ALPHA
A3 Automatic tower stations ogd-smn-tower 🟡 ALPHA
A4 Automatic soil stations - Data not yet available ogd-smn-soil - -
A5 Manual precipitation stations ogd-smn-nime 🟡 ALPHA
A6 Totaliser precipitation stations ogd-smn-tot 🟡 ALPHA
A7 Pollen stations ogd-smn-pollen 🟡 ALPHA
A8 Meteorological visual observations ogd-smn-obs 🟡 ALPHA
A9 Phenological observations ogd-smn-phenology 🟡 ALPHA

B - Atmosphere Measurements

Dataset/Collection latest Open Data processed latest Open Data available
B1 Radio soundings
B2 Raman-LIDAR for Meteorological Observation (RALMO) - not yet realised - -
B3 LIDAR Ceilometer CHM15K - not yet realised - -
B4 Ozone measurements – Total column (Dobson, Brewer) - not yet realised - -
B5 Ozone measurements – Profiles (O3 radio soundings, SOMORA) - not yet realised - -
B6 Swiss Alpine Climate Radiation Monitoring (SACRaM) - not yet realised - -

C - Climate Data

Dataset/Collection latest Open Data processed latest Open Data available
C1 Climate stations – Homogeneous measurements 🟡 ALPHA
C2 Climate precipitation stations – Homogeneous measurements 🟡 ALPHA
C3 Ground-based spatial climate data - Precipitation, Temperature, Relative Sunshine Duration 🟡 PoC
C4 Satellite-based spatial climate data - Global, Diffuse & Direct Radiation, Cloud Fractional Cover 🟡 PoC
C5 Radar-based spatial climate data - Maximum Hailstone Size, Number of Hail Days - expected to be available in May 2025 - -
C6 Climate normals 🟡
C7 Spatial climate normals 🟡
C8 Climate scenarios 🟢 CH2018

D - Radar Data

Dataset/Collection latest Open Data processed latest Open Data available
D1 Precipitation radar products
D2 Reflectivity-based radar products - ... ?
D3 Hail radar products - Probability of Hail, Maximum Expected Severe Hail Size
D4 Convection radar products - not yet realised - -
D5 Polar 3D radar products - not yet realised - -

E - Forecast Data

Dataset/Collection latest Open Data processed latest Open Data available
E1 Short-term forecast data
E2 Numerical weather forecasting model CH1 🟡 ALPHA
E3 Numerical weather forecasting model CH2 🟡 ALPHA
E4 Local forecast data 🟡