Average annual temperature is 14.1 °C
Absolute maximum temperature: 36.3 °C
Absolute minimum temperature: -8.2 °C
Number of sunny days: 145 days
Number of rainy days: 205 days
Number of snow days: 15 days
Look at detailed online map of Shiroi
* Weather data for Shiroi 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) | 14.2 | 14.5 | 19.7 | 25.7 | 30.4 | 29.9 | 36.3 | 34.8 | 32.6 | 25.0 | 24.3 | 18.0 |
| Average daytime temperature (°C) | 6.4 | 7.7 | 14.5 | 18.3 | 21.5 | 25.0 | 30.6 | 30.8 | 27.9 | 19.8 | 15.1 | 10.3 |
| Average temperature (°C) | 1.6 | 2.9 | 9.3 | 12.4 | 16.4 | 20.8 | 25.7 | 26.3 | 23.9 | 14.9 | 9.9 | 4.9 |
| Average night temperature (°C) | -1.7 | -0.3 | 4.7 | 7.4 | 11.7 | 17.3 | 21.4 | 23.0 | 20.7 | 10.9 | 5.8 | 1.0 |
| Absolute minimum temperature (°C) | -8.2 | -4.5 | -2.1 | 0.3 | 4.1 | 11.0 | 19.1 | 20.4 | 14.5 | 6.5 | -0.8 | -3.4 |
| 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 | 10.9 | 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) | 7.4 | 7.9 | 8.4 | 9.1 | 8.8 | 7.8 | 10.0 | 10.3 | 8.6 | 8.9 | 7.7 | 7.7 |
| Precipitation (mm) | 20 | 37 | 99 | 78 | 177 | 287 | 172 | 164 | 197 | 101 | 51 | 37 |
| Sunny days | 16 | 14 | 14 | 16 | 14 | 5 | 8 | 4 | 4 | 12 | 18 | 20 |
| Rainy days | 7 | 9 | 17 | 13 | 17 | 25 | 23 | 27 | 26 | 19 | 12 | 10 |
| Snow days | 8 | 5 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 |
The largest precipitation sum in Shiroi is at