Average annual temperature is 11.8 °C
Absolute maximum temperature: 33.3 °C
Absolute minimum temperature: -11.0 °C
Number of sunny days: 81 days
Number of rainy days: 234 days
Number of snow days: 50 days
Look at detailed online map of Shiraiwa
* Weather data for Shiraiwa 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) | 12.6 | 9.6 | 17.8 | 24.5 | 30.0 | 27.4 | 32.9 | 33.3 | 33.3 | 23.6 | 23.1 | 14.7 |
| Average daytime temperature (°C) | 1.9 | 2.7 | 10.6 | 16.3 | 19.8 | 23.4 | 28.6 | 31.5 | 26.6 | 17.6 | 12.7 | 7.2 |
| Average temperature (°C) | -1.5 | -0.7 | 5.1 | 9.9 | 14.2 | 19.1 | 23.8 | 26.0 | 22.1 | 12.5 | 7.6 | 2.6 |
| Average night temperature (°C) | -4.4 | -3.5 | 0.8 | 4.8 | 9.5 | 15.6 | 19.7 | 21.8 | 18.9 | 8.9 | 3.4 | -0.8 |
| Absolute minimum temperature (°C) | -11.0 | -7.8 | -5.7 | -2.3 | 2.0 | 9.3 | 15.3 | 19.2 | 9.6 | 4.3 | -3.8 | -7.6 |
| 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) | 9.9 | 10.8 | 12.0 | 13.2 | 14.2 | 14.7 | 14.4 | 13.6 | 12.4 | 11.2 | 10.2 | 9.6 |
| 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) | 3.7 | 5.3 | 7.7 | 8.1 | 8.4 | 7.8 | 9.8 | 11.6 | 8.1 | 8.3 | 5.8 | 5.0 |
| Precipitation (mm) | 147 | 123 | 79 | 90 | 130 | 236 | 125 | 55 | 143 | 128 | 182 | 118 |
| Sunny days | 2 | 5 | 10 | 13 | 14 | 5 | 1 | 7 | 4 | 7 | 9 | 4 |
| Rainy days | 7 | 7 | 18 | 17 | 17 | 25 | 30 | 24 | 26 | 24 | 20 | 19 |
| Snow days | 22 | 16 | 3 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 8 |
The best time to visit Shiraiwa during the most sunny months:
The largest precipitation sum in Shiraiwa is at