Status: public, in preparation / change log
Maintainer: Federal Office of Meteorology and Climatology MeteoSwiss, [email protected]

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 a later stage, customised queries via API will also be possible.

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

Note

In order to also provide access to the data via APIs in future, the necessary preparatory work is underway. As soon as an introduction date for this second type of access can be estimated, it will be communicated here.

General information

Terms of Use

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

Frequently asked Questions

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

We continuously update these based on questions received.

Getting Started with Download

Here you'll find information about data granularity, structure and update cycle, time stamps and time intervals as well as on column separators, decimal dividers and missing values.

Staying up to Date

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,

• please check Release Notes (upcoming) where swisstopo announces released changes that might affect your integration.

In the event of malfunctions at land-based stations,

• check for according messages of interruptions in data availability.

Operational Status & Contact

System	Contact Point	Status
Open Data generation & integration	MeteoSwiss' Open Data Support	see below per Open Data product
Open Data download service	swisstopo's geo.admin.ch Operations	🟢 UP
...	CSCS' ... Operations	⚪
Geodata metadata catalog	swisstopo's geocat.ch	🟡 PoC
opendata.swiss metadata catalog	FSO's OGD Office	⚪

Understanding MeteoSwiss' Open Data

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

The Open Data products in italics are not yet realised.

A - Ground-based Measurements

		latest Open Data generated	latest Open Data integrated
A1	Automatic weather stations – Measured values	🟡 PoC	🟡 PoC
A2	Automatic precipitation stations – Measured values	⚪	⚪
A3	Automatic tower stations – Measured values	⚪	⚪
A4	Automatic soil stations – Measured values	not yet realised	not yet realised
A5	Manual precipitation stations – Measured values	⚪	⚪
A6	Totaliser precipitation stations – Measured values	⚪	⚪
A7	Pollen stations – Measured values	⚪	⚪
A8	Meteorological visual observations	⚪	⚪
A9	Phenological observations	⚪	⚪

B - Atmosphere Measurements

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

C - Climate Data

		latest Open Data generated	latest Open Data integrated
C1	Climate stations – Homogeneous measurements	⚪	⚪
C2	Climate precipitation stations – Homogeneous measurements	⚪	⚪
C3	Ground-based spatial climate data - Precipitation, Temperature, Relative Sunshine Duration	🟡 PoC	🟡 PoC
C4	Satellite-based spatial climate data - Global, Diffuse & Direct Radiation, Cloud Fractional Cover	🟡 PoC	🟡 PoC
C5	Radar-based spatial climate data - Maximum Hailstone Size, Number of Hail Days	⚪	⚪
C6	Climate normals	⚪	⚪
C7	Spatial climate normals	⚪	⚪
C8	Climate scenarios	⚪	⚪

D - Radar Data

		latest Open Data generated	latest Open Data integrated
D1	Precipitation Products	⚪	⚪
D2	Reflectivity-based Products - ... ?	⚪	⚪
D3	Hail Products - Probability of Hail, Maximum Expected Severe Hail Size	⚪	⚪
D4	Convection Products	not yet realised	not yet realised
D5	Polar 3D Products	not yet realised	not yet realised

E - Forecast Data

		latest Open Data generated	latest Open Data integrated
E1	Short-term forecast data	⚪	⚪
E2	Numerical weather forecasting model CH1	⚪	⚪
E3	Numerical weather forecasting model CH2	⚪	⚪
E4	Local forecast data	⚪	⚪