MeteoSwiss Data Access Point
NEWS 14.02.2024: MeteoSwiss has uploaded the 2023 datasets for Rhires, Srel, Tabs, Tmin, Tmax. Please see the new folder "NEW_CH01_ALL-DATA-v2024". This is a brand new dataset, all gridded data were recalculated in NetCDF V1.8 and additional metadata are provided for the LV95/CH1903+ coordinate system for use with Q-GIS. Please use this data from now on.
NEWS 12.01.2024: The RhiresD, Tmin/Tmax/TabsD, SrelD daily, monthly M and annual Y datasets for 2022 are now packed and uploaded into the appropriate annual zip files. Please note that we are now storing only the Swiss coordinate system data on a 1x1km grid (ch01r.swiss.lv95). The 2023 summaries will come in February/March 2024.
NEWS 20.12.2022 IMPORTANT: All datasets RhiresD, Tmin/Tmax/TabsD, SrelD (daily, monthly, annual) have been reprocessed by Meteoswiss on a 1x1km grid and are now provided only in the Swiss coordnate system CH1903+ LV95 on our site up until 2021. We will not update the old datasets anymore, but will keep them in the collection in folders marked "OLD" for now.
Peter Molnar presented the use of the gridded data products in a Workshop at MeteoSwiss on 26.10.2018 "Download Applications of spatial climate datasets in hydrology (PDF, 2.2 MB)"
Access to MeteoSwiss Gridded Datasets for ETH researchers
MeteoSwiss provides selected gridded products to ETH researchers under a general license. We are serving as a central location for the distribution of this data within ETH. Data requests are eligible only from ETH faculty, postdocs and PhD students. For MSc student research it is the supervisor of the thesis who has to request the data. We appreciate any comments and suggestions on improving the data delivery.
Data Description
Basics: These are daily gridded products for Switzerland developed from a combination of station data and interpolation techniques. For more details read the MeteoSwiss data documentation overview below. General terms and conditions for using the data specify also the correct citation of source. The MeteoSwiss Gridded Datasets webpage provides all additional information for each dataset. Data are provided at the daily resolution, but also aggregated monthly and annual sums.
Resolution: As of 2022 data are provided ony in the Swiss coordinate system CH1903+ LV95 on a 1x1 km grid. The filename contains "swiss.lv95". The original temporal resolution is daily. The monthly and annual sums/averages are inteprolated.
Format: The data format is NetCDF, with a separate file for every variable and year. We provide examples of Matlab and Python code to read this format and extract the data for regions, time periods, etc. If you develop your own routines we would appreciate if you share them with other users through our page. For viewing the original NetCDF we recommend the freeware Panoply from NASA (external page http://www.giss.nasa.gov/tools/panoply/).
Variables and explanations
- Download RhiresD daily precipitation (mm), since 1961 (PDF, 394 KB)
- Download TabsD daily mean air temperature (deg C), since 1961 (PDF, 524 KB)
- Download TminD daily minimum air temperature (deg C), since 1971 (PDF, 524 KB)
- Download TmaxD daily maximum air temperature (deg C), since 1971 (PDF, 524 KB)
- Download SrelD daily relative sunshine duration (%), since 1981 (PDF, 451 KB)
- Download SISD daily surface incoming short-wave radiation (W/m2), 2004-2012 (PDF, 235 KB)
Data Request
- Download and complete the Download Data Request Form (PDF, 1.2 MB)
- Save the form as "GriddedData_YOURNAME.pdf" and email to
- You will receive an email which will point you to the data download location
- Please remember to inform us of the results of your research (papers, etc.)