Average annual temperature is 14.2 °C
Absolute maximum temperature: 36.3 °C
Absolute minimum temperature: -8.9 °C
Number of sunny days: 126 days
Number of rainy days: 223 days
Number of snow days: 16 days
Look at detailed online map of Shiroishi
* Weather data for Shiroishi 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) | 14.6 | 15.0 | 20.9 | 24.8 | 31.5 | 30.5 | 35.0 | 36.3 | 34.5 | 27.3 | 25.1 | 17.7 |
| Average daytime temperature (°C) | 6.0 | 7.3 | 14.2 | 18.2 | 21.1 | 25.2 | 30.4 | 33.0 | 28.3 | 20.8 | 15.6 | 10.0 |
| Average temperature (°C) | 1.7 | 2.5 | 8.1 | 12.3 | 15.8 | 20.8 | 25.8 | 27.9 | 23.9 | 15.2 | 10.5 | 5.2 |
| Average night temperature (°C) | -1.9 | -1.1 | 3.2 | 7.4 | 11.0 | 17.4 | 22.0 | 23.9 | 20.7 | 10.9 | 6.8 | 1.3 |
| Absolute minimum temperature (°C) | -8.9 | -5.1 | -5.1 | -0.5 | 2.9 | 12.6 | 17.5 | 22.0 | 11.9 | 7.0 | 0.9 | -4.7 |
| 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 | 13.0 | 11.0 | 10.0 | 9.0 |
| Daylight mean duration (h) | 9.9 | 10.8 | 12.0 | 13.2 | 14.2 | 14.8 | 14.5 | 13.6 | 12.4 | 11.2 | 10.1 | 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) | 6.5 | 7.4 | 8.1 | 8.8 | 8.3 | 7.3 | 9.7 | 11.6 | 7.5 | 8.8 | 6.6 | 6.9 |
| Precipitation (mm) | 38 | 77 | 67 | 55 | 171 | 240 | 91 | 90 | 296 | 46 | 92 | 58 |
| Sunny days | 11 | 12 | 17 | 14 | 12 | 7 | 9 | 4 | 4 | 15 | 11 | 10 |
| Rainy days | 12 | 11 | 14 | 16 | 19 | 23 | 22 | 27 | 26 | 16 | 19 | 18 |
| Snow days | 8 | 5 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 3 |
The best time to visit Shiroishi during the most sunny months:
The largest precipitation sum in Shiroishi is at