Average annual temperature is 10.1 °C
Absolute maximum temperature: 34.1 °C
Absolute minimum temperature: -12.2 °C
Number of sunny days: 122 days
Number of rainy days: 227 days
Number of snow days: 16 days
Look at detailed online map of Hergiswil bei Willisau
* Weather data for Hergiswil bei Willisau 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) | 15.1 | 13.6 | 17.3 | 17.2 | 21.6 | 28.6 | 32.2 | 34.1 | 27.6 | 24.4 | 14.8 | 11.1 |
| Average daytime temperature (°C) | 3.8 | 6.7 | 9.3 | 10.0 | 15.9 | 23.4 | 23.4 | 23.7 | 22.0 | 17.0 | 7.6 | 6.4 |
| Average temperature (°C) | 1.1 | 2.7 | 5.4 | 6.2 | 11.8 | 18.4 | 18.7 | 19.0 | 17.3 | 12.7 | 4.6 | 3.3 |
| Average night temperature (°C) | -1.8 | -0.7 | 1.6 | 2.7 | 8.2 | 13.3 | 14.1 | 14.3 | 12.9 | 8.8 | 1.5 | 0.6 |
| Absolute minimum temperature (°C) | -12.2 | -9.0 | -4.1 | -4.1 | 3.9 | 10.9 | 8.3 | 6.8 | 6.0 | 2.8 | -5.1 | -11.1 |
| 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 | 15.8 | 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) | 3.3 | 6.9 | 6.9 | 7.2 | 8.5 | 13.2 | 12.0 | 10.5 | 10.3 | 7.6 | 3.6 | 4.0 |
| Precipitation (mm) | 64 | 34 | 150 | 156 | 189 | 66 | 169 | 117 | 49 | 93 | 217 | 198 |
| Sunny days | 9 | 14 | 11 | 4 | 6 | 12 | 7 | 11 | 17 | 16 | 4 | 11 |
| Rainy days | 11 | 12 | 20 | 26 | 25 | 18 | 24 | 20 | 13 | 15 | 24 | 19 |
| Snow days | 11 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 1 |
The best time to visit Hergiswil bei Willisau during the most sunny months:
Months with the longest average daylight duration in Hergiswil bei Willisau:
The largest precipitation sum in Hergiswil bei Willisau is at