Average annual temperature is 10.4 °C
Absolute maximum temperature: 32.2 °C
Absolute minimum temperature: -8.3 °C
Number of sunny days: 133 days
Number of rainy days: 214 days
Number of snow days: 18 days
Look at detailed online map of Arn
* Weather data for Arn 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) | 14.3 | 12.8 | 17.0 | 17.2 | 22.1 | 30.5 | 32.2 | 31.2 | 26.1 | 23.4 | 13.9 | 10.4 |
| Average daytime temperature (°C) | 3.7 | 6.2 | 9.1 | 10.1 | 16.1 | 23.9 | 23.2 | 22.8 | 21.8 | 16.8 | 7.7 | 6.0 |
| Average temperature (°C) | 1.2 | 3.1 | 5.3 | 6.6 | 12.1 | 18.8 | 19.0 | 19.1 | 18.0 | 13.0 | 4.8 | 3.2 |
| Average night temperature (°C) | -1.7 | 0.3 | 1.7 | 3.3 | 8.2 | 13.8 | 15.2 | 15.5 | 14.4 | 9.4 | 2.0 | 0.4 |
| Absolute minimum temperature (°C) | -8.3 | -4.6 | -2.9 | -3.1 | 3.7 | 11.0 | 9.8 | 8.9 | 8.5 | 3.1 | -3.0 | -5.1 |
| 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) | 9.0 | 10.3 | 11.9 | 13.6 | 15.1 | 15.9 | 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) | 3.7 | 6.5 | 6.6 | 6.8 | 8.6 | 13.5 | 11.5 | 9.7 | 10.2 | 7.5 | 3.2 | 3.7 |
| Precipitation (mm) | 82 | 42 | 156 | 176 | 145 | 65 | 302 | 260 | 70 | 144 | 279 | 229 |
| Sunny days | 8 | 13 | 11 | 7 | 8 | 13 | 9 | 14 | 20 | 17 | 5 | 8 |
| Rainy days | 12 | 11 | 20 | 23 | 23 | 17 | 22 | 17 | 10 | 14 | 23 | 22 |
| Snow days | 11 | 4 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 1 |
The best time to visit Arn during the most sunny months:
Months with the longest average daylight duration in Arn:
The largest precipitation sum in Arn is at