Average annual temperature is 7.6 °C
Absolute maximum temperature: 30.3 °C
Absolute minimum temperature: -16.9 °C
Number of sunny days: 93 days
Number of rainy days: 190 days
Number of snow days: 82 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) | 5.7 | 5.2 | 12.1 | 14.4 | 21.4 | 27.1 | 27.2 | 30.3 | 26.2 | 20.3 | 15.0 | 11.4 |
| Average daytime temperature (°C) | -4.9 | -3.3 | 5.4 | 9.0 | 14.8 | 20.2 | 22.8 | 24.8 | 22.2 | 14.9 | 6.5 | -1.1 |
| Average temperature (°C) | -7.8 | -6.2 | 1.7 | 5.4 | 10.5 | 15.9 | 19.5 | 21.5 | 18.3 | 11.4 | 3.6 | -3.8 |
| Average night temperature (°C) | -10.8 | -9.2 | -1.2 | 2.6 | 7.0 | 12.7 | 17.0 | 19.4 | 15.3 | 8.5 | 0.9 | -6.7 |
| Absolute minimum temperature (°C) | -16.4 | -13.4 | -9.5 | -3.6 | 0.5 | 5.1 | 11.8 | 14.9 | 9.5 | 2.0 | -6.8 | -16.9 |
| 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 | 14.9 | 15.6 | 15.2 | 14.1 | 12.5 | 11.0 | 9.6 | 8.8 |
| 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) | 5.5 | 6.0 | 7.7 | 8.0 | 10.0 | 8.9 | 8.2 | 7.7 | 8.2 | 7.4 | 4.0 | 3.3 |
| Precipitation (mm) | 68 | 51 | 65 | 138 | 48 | 116 | 163 | 262 | 165 | 118 | 216 | 120 |
| Sunny days | 3 | 4 | 13 | 6 | 13 | 10 | 10 | 7 | 12 | 9 | 4 | 2 |
| Rainy days | 4 | 4 | 10 | 23 | 18 | 20 | 21 | 24 | 18 | 22 | 17 | 9 |
| Snow days | 24 | 20 | 8 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 9 | 20 |
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