Average annual temperature is 6.5 °C
Absolute maximum temperature: 25.1 °C
Absolute minimum temperature: -18.7 °C
Number of sunny days: 101 days
Number of rainy days: 207 days
Number of snow days: 57 days
Look at detailed online map of Shirane-onsen
* Weather data for Shirane-onsen 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) | 7.5 | 4.6 | 10.9 | 14.5 | 20.5 | 22.8 | 25.1 | 24.7 | 25.0 | 17.5 | 16.7 | 11.7 |
| Average daytime temperature (°C) | -4.2 | -2.8 | 4.7 | 8.5 | 14.1 | 18.0 | 22.7 | 23.2 | 20.9 | 11.6 | 6.9 | 1.4 |
| Average temperature (°C) | -7.7 | -6.3 | 1.1 | 3.8 | 9.2 | 14.1 | 18.8 | 19.5 | 17.1 | 7.3 | 3.0 | -2.9 |
| Average night temperature (°C) | -10.8 | -9.9 | -2.8 | -0.6 | 5.1 | 10.8 | 15.1 | 16.3 | 14.1 | 4.0 | -0.8 | -6.9 |
| Absolute minimum temperature (°C) | -18.7 | -14.0 | -9.9 | -7.3 | -2.4 | 4.8 | 11.0 | 14.0 | 6.5 | -0.5 | -9.6 | -14.1 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 | 14.0 | 14.0 | 14.0 | 12.0 | 11.0 | 10.0 | 9.0 |
| Daylight mean duration (h) | 10.0 | 10.8 | 12.0 | 13.1 | 14.1 | 14.6 | 14.4 | 13.5 | 12.4 | 11.3 | 10.2 | 9.7 |
| Daylight minimum duration (h) | 9.0 | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 | 9.0 |
| Sunshine mean duration (h) | 5.3 | 6.5 | 8.4 | 8.9 | 9.2 | 8.3 | 10.6 | 11.1 | 8.6 | 8.2 | 6.7 | 6.7 |
| Precipitation (mm) | 91 | 78 | 96 | 84 | 161 | 241 | 132 | 108 | 137 | 109 | 87 | 78 |
| Sunny days | 7 | 8 | 14 | 15 | 9 | 7 | 3 | 2 | 2 | 12 | 12 | 10 |
| Rainy days | 8 | 4 | 11 | 13 | 21 | 23 | 28 | 29 | 28 | 19 | 12 | 11 |
| Snow days | 16 | 16 | 6 | 2 | 1 | 0 | 0 | 0 | 0 | 0 | 6 | 10 |
The best time to visit Shirane-onsen during the most sunny months:
The largest precipitation sum in Shirane-onsen is at