High-quality climate and air quality data at your properties of interest

Data Packages

We offer climate data in three packages – Gold, Silver, or Bronze. Our Air Quality package can also be selected, either independently or in addition to one of the climate packages:

Silver and Gold also include all data of the lower level(s).

The bespoke climate metrics* included in Gold, for both past and future†, are:

1. Average number of days with frost per year (minimum daily temperature < 0°C)
2. Average number of “summer days” per year (maximum daily temperature ≥ 25°C)
3. Average number of “hot days” per year (maximum daily temperature ≥ 30°C)
4. Average number of “tropical nights” per year (minimum daily temperature ≥ 20°C)
5. Average number of “heating days” per year (mean daily temperature < 12°C)
6. Average number of “cooling days” per year (mean daily temperature ≥ 18.3°C)
7. Average number of days with “moderate precipitation” per year (daily precipitation ≥ 5 mm)
8. Average number of days with “heavy precipitation” per year (daily precipitation ≥ 10 mm)
9. Average number of “cloudy days” per year (relative sunshine duration < 20%)
10. Average number of “clear days” per year (relative sunshine duration > 80%)

†As the CH2018 projections do not include gridded sunshine duration data, metrics 9 and 10 can only be provided for the historical period.

Example Graphics

The graphics below, which are interactive, illustrate the type of products provided in each package.

Hover over the data points to see the values in a pop-up box. Individual data series can be toggled on and off by clicking on the lines in the legend to the right hand side. To zoom in, draw a box anywhere on the graphic. To return to the full extent, double click.

Example of Bronze data: Annual mean air temperature at four selected properties for the historical period (1991–2020) and the future period (2035–2064) under two plausible climate scenarios (RCP4.5 and RCP8.5).

Example of Silver data: Monthly mean precipitation at four selected properties for the historical period (1991–2020) and the future period (2035–2064) under two plausible climate scenarios (RCP4.5 and RCP8.5).

Example of Gold data: Mean number of days with frost (minimum daily temperature < 0°C) at four selected properties for the historical period (1991–2020) and the future (2035–2064) under two plausible climate scenarios (RCP4.5 and RCP8.5).

For Commercial Customers

All data are now available for the ~3.25 million addresses across Switzerland.

To obtain free sample data or discuss a quotation for either a certain number of properties (e.g. 100, 1000 etc.) or all properties, please:

We provide our data to commercial customers in two main formats, according to your preference:

• Comma-Separated Values (.csv) file(s): A simple “flat-file” tabular format that is directly usable in spreadsheet applications (e.g., Microsoft Excel, Google Sheets), plus all programming languages / software environments (e.g., Python, R).
• GeoPackage (.gpkg) file: An open, interoperable spatial data format that is directly usable in various GIS software and other geospatial tools/systems – both desktop and command-line.

Depending on the package purchased and preferred format, the data will be provided either in multiple separate files (.csv) or as multiple “layers” in a single file (.gpkg).

For Private Customers

We have developed a user-friendly front-end which includes a web map and address entry bar. Using it, private customers can select up to four properties and generate interactive graphics similar to the examples above.

These graphics are provided as an interactive HyperText Markup Language (.html) file, which can be viewed in your web browser and downloaded locally for future reference. To begin, visit:

Please note that at present, SwissClimmo is optimised for desktop and large screens only (not mobile). A short video tutorial explaining how to use the SwissClimmo App is provided below:

Our pricing structure for private customers is:

Payments can be made securely and efficiently via TWINT.

If you are a private customer who would like to obtain data for more than four properties at once, please: