Average annual temperature is 7.2 °C
Absolute maximum temperature: 30.4 °C
Absolute minimum temperature: -17.7 °C
Number of sunny days: 75 days
Number of rainy days: 205 days
Number of snow days: 85 days
Look at detailed online map of Jūsansen
* Weather data for Jūsansen 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) | 4.8 | 4.3 | 11.8 | 15.8 | 22.5 | 26.9 | 26.7 | 30.4 | 26.4 | 18.9 | 15.7 | 8.1 |
| Average daytime temperature (°C) | -6.2 | -4.3 | 4.2 | 8.0 | 14.8 | 20.4 | 23.2 | 26.2 | 21.6 | 13.5 | 5.8 | -2.6 |
| Average temperature (°C) | -8.6 | -7.0 | 1.1 | 4.9 | 10.5 | 16.4 | 20.1 | 22.6 | 18.0 | 10.2 | 2.8 | -5.0 |
| Average night temperature (°C) | -11.1 | -9.6 | -1.4 | 2.5 | 7.3 | 13.3 | 17.6 | 20.1 | 14.9 | 7.6 | 0.1 | -7.7 |
| Absolute minimum temperature (°C) | -17.7 | -16.0 | -9.0 | -2.0 | -0.6 | 5.2 | 10.6 | 14.7 | 8.8 | 1.1 | -7.9 | -15.6 |
| 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) | 9.3 | 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) | 4.3 | 5.5 | 7.6 | 7.6 | 10.0 | 9.4 | 8.5 | 8.8 | 8.5 | 7.2 | 4.1 | 3.7 |
| Precipitation (mm) | 113 | 84 | 74 | 139 | 54 | 116 | 146 | 295 | 202 | 145 | 237 | 171 |
| Sunny days | 3 | 0 | 11 | 3 | 15 | 7 | 6 | 7 | 10 | 8 | 4 | 1 |
| Rainy days | 3 | 6 | 11 | 25 | 16 | 23 | 25 | 24 | 20 | 23 | 19 | 10 |
| Snow days | 25 | 22 | 9 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 7 | 20 |
The best time to visit Jūsansen during the most sunny months:
Months with the longest average daylight duration in Jūsansen:
The largest precipitation sum in Jūsansen is at