Average annual temperature is 7.9 °C
Absolute maximum temperature: 32.4 °C
Absolute minimum temperature: -16.8 °C
Number of sunny days: 99 days
Number of rainy days: 192 days
Number of snow days: 74 days
Look at detailed online map of Sansen
* Weather data for Sansen Japan is based on climate observations for 2026 year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Absolute maximum temperature (°C) | 7.1 | 7.0 | 13.8 | 18.7 | 23.8 | 27.7 | 29.3 | 32.4 | 26.7 | 21.4 | 17.7 | 9.9 |
| Average daytime temperature (°C) | -4.7 | -3.0 | 6.0 | 10.2 | 15.9 | 20.3 | 23.1 | 24.8 | 22.5 | 15.1 | 7.6 | -0.9 |
| Average temperature (°C) | -7.9 | -6.3 | 2.0 | 6.0 | 11.3 | 16.5 | 20.0 | 21.9 | 18.4 | 11.3 | 4.2 | -4.0 |
| Average night temperature (°C) | -11.2 | -9.3 | -1.2 | 3.0 | 8.0 | 13.4 | 17.5 | 20.0 | 15.0 | 8.4 | 1.3 | -7.4 |
| Absolute minimum temperature (°C) | -16.8 | -14.9 | -9.0 | -6.5 | 0.3 | 5.0 | 10.5 | 16.0 | 6.9 | 2.6 | -7.1 | -15.3 |
| 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 | 9.0 |
| Daylight mean duration (h) | 9.2 | 10.4 | 11.9 | 13.5 | 14.8 | 15.5 | 15.2 | 14.0 | 12.5 | 11.0 | 9.6 | 8.9 |
| Daylight minimum duration (h) | 8.0 | 9.0 | 11.0 | 12.0 | 14.0 | 15.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 | 8.0 |
| Sunshine mean duration (h) | 6.2 | 5.7 | 7.8 | 7.7 | 10.2 | 9.6 | 8.2 | 6.9 | 8.2 | 7.5 | 5.2 | 4.2 |
| Precipitation (mm) | 37 | 64 | 48 | 133 | 37 | 134 | 103 | 222 | 167 | 98 | 130 | 102 |
| Sunny days | 7 | 2 | 16 | 7 | 12 | 8 | 10 | 3 | 10 | 15 | 5 | 4 |
| Rainy days | 4 | 5 | 11 | 22 | 19 | 22 | 21 | 28 | 20 | 16 | 18 | 6 |
| Snow days | 20 | 21 | 4 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 7 | 21 |
The best time to visit Sansen during the most sunny months:
Months with the longest average daylight duration in Sansen:
The largest precipitation sum in Sansen is at