Average annual temperature is 9.0 °C
Absolute maximum temperature: 31.0 °C
Absolute minimum temperature: -20.1 °C
Number of sunny days: 125 days
Number of rainy days: 197 days
Number of snow days: 43 days
Look at detailed online map of Koinuma
* Weather data for Koinuma 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) | 6.7 | 5.9 | 12.6 | 14.1 | 20.2 | 23.7 | 28.8 | 31.0 | 27.1 | 22.3 | 18.6 | 11.3 |
| Average daytime temperature (°C) | -2.3 | -0.8 | 7.0 | 10.9 | 15.5 | 19.6 | 24.3 | 27.6 | 23.5 | 16.1 | 9.8 | 2.1 |
| Average temperature (°C) | -7.3 | -5.1 | 2.9 | 7.3 | 11.2 | 16.3 | 21.2 | 24.6 | 20.1 | 12.1 | 5.9 | -1.7 |
| Average night temperature (°C) | -12.9 | -10.2 | -0.9 | 4.2 | 7.4 | 13.6 | 18.8 | 22.4 | 17.1 | 8.7 | 2.3 | -5.1 |
| Absolute minimum temperature (°C) | -20.1 | -17.9 | -7.9 | -1.4 | 1.5 | 6.1 | 14.6 | 18.3 | 9.9 | 1.3 | -6.8 | -12.7 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 9.0 | 11.0 | 12.0 | 14.0 | 15.0 | 15.0 | 15.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 |
| Daylight mean duration (h) | 9.5 | 10.6 | 11.9 | 13.4 | 14.6 | 15.3 | 15.0 | 13.9 | 12.5 | 11.1 | 9.8 | 9.1 |
| Daylight minimum duration (h) | 9.0 | 9.0 | 11.0 | 12.0 | 14.0 | 15.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 | 9.0 |
| Sunshine mean duration (h) | 7.1 | 7.5 | 8.4 | 7.9 | 9.5 | 8.2 | 9.5 | 9.2 | 7.2 | 7.8 | 6.3 | 5.7 |
| Precipitation (mm) | 27 | 42 | 79 | 146 | 56 | 125 | 80 | 154 | 265 | 82 | 150 | 41 |
| Sunny days | 15 | 10 | 14 | 9 | 14 | 10 | 10 | 7 | 5 | 10 | 10 | 11 |
| Rainy days | 4 | 5 | 12 | 21 | 17 | 20 | 21 | 24 | 25 | 21 | 19 | 8 |
| Snow days | 12 | 13 | 5 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 12 |
Months with the longest average daylight duration in Koinuma:
The largest precipitation sum in Koinuma is at