Average annual temperature is 15.0 °C
Absolute maximum temperature: 35.1 °C
Absolute minimum temperature: -11.5 °C
Number of sunny days: 140 days
Number of rainy days: 216 days
Number of snow days: 9 days
Look at detailed online map of Shiomachi
* Weather data for Shiomachi 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) | 15.6 | 15.1 | 22.4 | 26.0 | 30.0 | 30.2 | 35.1 | 34.9 | 33.1 | 25.0 | 25.2 | 19.9 |
| Average daytime temperature (°C) | 7.8 | 9.2 | 16.3 | 18.8 | 23.1 | 26.3 | 30.7 | 31.9 | 29.5 | 21.4 | 16.4 | 10.6 |
| Average temperature (°C) | 2.9 | 4.2 | 9.9 | 13.1 | 17.6 | 21.5 | 26.2 | 27.2 | 24.5 | 15.6 | 11.0 | 5.8 |
| Average night temperature (°C) | -1.2 | -0.1 | 4.5 | 8.3 | 13.1 | 17.6 | 22.3 | 23.6 | 20.9 | 11.1 | 6.9 | 2.2 |
| Absolute minimum temperature (°C) | -11.5 | -4.3 | -2.7 | 2.4 | 5.9 | 12.1 | 18.5 | 21.1 | 17.0 | 6.9 | -0.3 | -3.5 |
| 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 | 13.0 | 12.0 | 11.0 | 10.0 | 10.0 |
| Daylight mean duration (h) | 10.1 | 10.9 | 12.0 | 13.1 | 14.0 | 14.4 | 14.2 | 13.4 | 12.4 | 11.3 | 10.4 | 9.9 |
| Daylight minimum duration (h) | 9.0 | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 | 13.0 | 12.0 | 11.0 | 10.0 | 10.0 | 9.0 |
| Sunshine mean duration (h) | 6.1 | 6.2 | 8.1 | 7.6 | 8.3 | 7.5 | 9.2 | 9.5 | 8.4 | 8.2 | 7.1 | 5.9 |
| Precipitation (mm) | 62 | 66 | 78 | 193 | 233 | 219 | 192 | 174 | 70 | 30 | 46 | 64 |
| Sunny days | 11 | 12 | 19 | 14 | 17 | 11 | 5 | 3 | 5 | 19 | 15 | 9 |
| Rainy days | 15 | 15 | 12 | 16 | 14 | 19 | 26 | 28 | 25 | 12 | 15 | 19 |
| Snow days | 5 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 3 |
The largest precipitation sum in Shiomachi is at