ICON Forecast Service

MeteoSwiss ICON weather forecasts for Swiss PV & energy modeling

Operational
5 day
Horizon (ICON-CH2)
15min
Output Resolution

API Endpoints

API Documentation

Interactive OpenAPI docs (Swagger UI)

Forecast Time Series

POST /api/v1/forecast/timeseries

Health

/health · /ready

ReDoc

Reference documentation

Data Source

Source: MeteoSwiss ICON-CH1-EPS (~1 km, ≤33 h) & ICON-CH2-EPS (~2.1 km, ≤120 h) Open Government Data.

Parameters: GHI (direct+diffuse), DHI, DNI, 2 m temperature, 10 m wind, humidity, pressure — hourly, upsampled to 15 min.

License: CC BY 4.0 — Source: MeteoSwiss.

Forecast Disclaimer

Forecasts are numerical weather predictions and carry inherent uncertainty that grows with the horizon. Values are for planning purposes only.