Average annual temperature is 5.9 °C
Absolute maximum temperature: 27.1 °C
Absolute minimum temperature: -16.3 °C
Number of sunny days: 129 days
Number of rainy days: 148 days
Number of snow days: 88 days
Look at detailed online map of Simplon
* Weather data for Simplon 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) | 9.3 | 10.3 | 7.9 | 9.7 | 15.4 | 22.2 | 24.2 | 27.1 | 24.0 | 21.3 | 8.7 | 11.1 |
| Average daytime temperature (°C) | -0.3 | 3.2 | 3.1 | 4.0 | 9.8 | 16.1 | 19.0 | 18.7 | 17.5 | 12.1 | 2.4 | 3.2 |
| Average temperature (°C) | -3.0 | 0.3 | 0.3 | 1.0 | 7.3 | 12.6 | 15.2 | 14.7 | 13.8 | 9.2 | -0.9 | 0.3 |
| Average night temperature (°C) | -5.9 | -2.8 | -3.4 | -2.7 | 4.2 | 7.9 | 11.0 | 10.8 | 10.2 | 5.7 | -5.0 | -3.2 |
| Absolute minimum temperature (°C) | -16.3 | -12.0 | -10.7 | -9.6 | -0.2 | 3.2 | 4.7 | 0.5 | 2.5 | -4.3 | -11.4 | -13.4 |
| 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 | 15.7 | 15.4 | 14.1 | 12.6 | 10.9 | 9.5 | 8.7 |
| 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) | 5.9 | 8.3 | 8.0 | 9.6 | 10.1 | 12.2 | 12.5 | 11.4 | 9.8 | 6.9 | 5.1 | 4.7 |
| Precipitation (mm) | 31 | 16 | 131 | 62 | 155 | 93 | 94 | 166 | 92 | 157 | 170 | 144 |
| Sunny days | 14 | 18 | 10 | 11 | 7 | 9 | 2 | 9 | 12 | 15 | 7 | 15 |
| Rainy days | 1 | 1 | 0 | 7 | 18 | 21 | 29 | 21 | 18 | 15 | 8 | 9 |
| Snow days | 16 | 9 | 21 | 12 | 6 | 0 | 0 | 1 | 0 | 1 | 15 | 7 |
The best time to visit Simplon during the most sunny months:
Months with the longest average daylight duration in Simplon:
The largest precipitation sum in Simplon is at