Average annual temperature is 9.7 °C
Absolute maximum temperature: 32.9 °C
Absolute minimum temperature: -15.1 °C
Number of sunny days: 93 days
Number of rainy days: 218 days
Number of snow days: 54 days
Look at detailed online map of Grimmialp
* Weather data for Grimmialp Switzerland is based on climate observations for 2026 year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Absolute maximum temperature (°C) | 14.2 | 15.2 | 17.1 | 17.2 | 20.9 | 27.8 | 32.9 | 32.6 | 28.3 | 26.5 | 14.3 | 14.1 |
| Average daytime temperature (°C) | 4.1 | 8.1 | 9.9 | 10.0 | 15.3 | 22.4 | 24.1 | 23.3 | 23.0 | 18.6 | 7.8 | 7.7 |
| Average temperature (°C) | 0.4 | 3.0 | 5.1 | 5.8 | 10.6 | 17.0 | 18.6 | 18.1 | 17.1 | 12.8 | 3.9 | 3.1 |
| Average night temperature (°C) | -3.3 | -1.2 | 1.1 | 1.9 | 6.0 | 10.8 | 12.9 | 12.9 | 11.6 | 8.0 | -0.9 | -1.7 |
| Absolute minimum temperature (°C) | -14.4 | -9.5 | -6.0 | -5.6 | 2.6 | 7.4 | 5.2 | 4.8 | 5.2 | 2.8 | -10.9 | -15.1 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 9.0 | 11.0 | 12.0 | 14.0 | 15.0 | 15.0 | 15.0 | 14.0 | 13.0 | 11.0 | 10.0 | 8.0 |
| Daylight mean duration (h) | 9.1 | 10.3 | 11.9 | 13.6 | 15.0 | 15.8 | 15.4 | 14.2 | 12.6 | 10.9 | 9.4 | 8.6 |
| Daylight minimum duration (h) | 8.0 | 9.0 | 11.0 | 12.0 | 14.0 | 15.0 | 14.0 | 13.0 | 11.0 | 10.0 | 8.0 | 8.0 |
| Sunshine mean duration (h) | 4.5 | 8.0 | 7.4 | 7.9 | 9.5 | 13.2 | 12.3 | 10.5 | 10.5 | 7.8 | 3.5 | 4.1 |
| Precipitation (mm) | 113 | 47 | 180 | 182 | 145 | 165 | 219 | 236 | 105 | 151 | 274 | 243 |
| Sunny days | 8 | 16 | 9 | 3 | 3 | 6 | 3 | 5 | 12 | 14 | 4 | 10 |
| Rainy days | 9 | 3 | 13 | 17 | 28 | 24 | 28 | 26 | 18 | 17 | 20 | 15 |
| Snow days | 14 | 9 | 9 | 10 | 0 | 0 | 0 | 0 | 0 | 0 | 6 | 6 |
The best time to visit Grimmialp during the most sunny months:
Months with the longest average daylight duration in Grimmialp:
The largest precipitation sum in Grimmialp is at