Average annual temperature is 8.5 °C
Absolute maximum temperature: 31.4 °C
Absolute minimum temperature: -14.0 °C
Number of sunny days: 110 days
Number of rainy days: 230 days
Number of snow days: 25 days
Look at detailed online map of Les Grattes
* Weather data for Les Grattes 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) | 11.4 | 12.0 | 15.3 | 16.0 | 19.8 | 25.0 | 29.5 | 31.4 | 25.6 | 23.3 | 11.1 | 10.5 |
| Average daytime temperature (°C) | 1.7 | 5.1 | 7.6 | 8.5 | 14.3 | 20.9 | 20.7 | 21.2 | 20.4 | 15.0 | 5.3 | 4.6 |
| Average temperature (°C) | -0.7 | 1.4 | 3.7 | 4.8 | 10.5 | 16.6 | 16.5 | 16.9 | 16.0 | 11.4 | 2.8 | 1.7 |
| Average night temperature (°C) | -3.1 | -2.1 | 0.1 | 1.4 | 6.9 | 12.1 | 12.2 | 13.0 | 11.9 | 7.9 | 0.6 | -0.7 |
| Absolute minimum temperature (°C) | -14.0 | -11.0 | -5.4 | -4.5 | 2.9 | 9.5 | 7.9 | 6.5 | 5.6 | 2.0 | -7.7 | -11.7 |
| 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) | 9.0 | 10.3 | 11.9 | 13.6 | 15.1 | 15.8 | 15.5 | 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) | 2.9 | 6.8 | 7.1 | 8.0 | 10.4 | 13.3 | 12.1 | 10.1 | 10.4 | 7.3 | 3.2 | 3.2 |
| Precipitation (mm) | 103 | 17 | 150 | 114 | 113 | 84 | 169 | 99 | 73 | 162 | 225 | 206 |
| Sunny days | 7 | 14 | 9 | 7 | 6 | 9 | 4 | 7 | 17 | 16 | 4 | 10 |
| Rainy days | 13 | 7 | 19 | 23 | 25 | 21 | 27 | 24 | 13 | 15 | 23 | 20 |
| Snow days | 11 | 7 | 3 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 3 | 1 |
The best time to visit Les Grattes during the most sunny months:
Months with the longest average daylight duration in Les Grattes:
The largest precipitation sum in Les Grattes is at