Average annual temperature is 10.3 °C
Absolute maximum temperature: 31.5 °C
Absolute minimum temperature: -10.2 °C
Number of sunny days: 120 days
Number of rainy days: 225 days
Number of snow days: 20 days
Look at detailed online map of Äussere Altmatt
* Weather data for Äussere Altmatt 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) | 13.9 | 13.4 | 16.7 | 16.7 | 21.8 | 31.3 | 31.5 | 31.1 | 25.8 | 23.6 | 14.1 | 11.5 |
| Average daytime temperature (°C) | 3.7 | 6.6 | 9.1 | 10.0 | 15.9 | 23.3 | 23.0 | 22.6 | 21.8 | 17.1 | 7.6 | 6.3 |
| Average temperature (°C) | 1.3 | 3.0 | 5.3 | 6.5 | 12.0 | 18.3 | 18.9 | 18.9 | 18.0 | 13.3 | 4.6 | 3.3 |
| Average night temperature (°C) | -1.9 | -0.4 | 1.3 | 3.2 | 7.8 | 13.0 | 15.1 | 15.0 | 14.0 | 9.6 | 1.5 | 0.1 |
| Absolute minimum temperature (°C) | -10.2 | -5.8 | -3.4 | -3.2 | 2.9 | 10.3 | 9.8 | 9.0 | 7.9 | 3.1 | -7.4 | -9.0 |
| 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) | 3.6 | 6.4 | 6.3 | 6.7 | 8.5 | 13.5 | 11.3 | 9.7 | 10.1 | 7.4 | 3.2 | 3.8 |
| Precipitation (mm) | 86 | 47 | 171 | 192 | 162 | 68 | 288 | 256 | 84 | 160 | 315 | 236 |
| Sunny days | 10 | 13 | 10 | 7 | 4 | 8 | 9 | 13 | 17 | 18 | 2 | 9 |
| Rainy days | 12 | 11 | 19 | 22 | 27 | 22 | 22 | 18 | 13 | 13 | 26 | 20 |
| Snow days | 9 | 4 | 2 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 2 |
The best time to visit Äussere Altmatt during the most sunny months:
Months with the longest average daylight duration in Äussere Altmatt:
The largest precipitation sum in Äussere Altmatt is at