Average annual temperature is 8.7 °C
Absolute maximum temperature: 33.9 °C
Absolute minimum temperature: -23.6 °C
Number of sunny days: 159 days
Number of rainy days: 170 days
Number of snow days: 36 days
Look at detailed online map of Kōwa
* Weather data for Kōwa 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) | 6.6 | 8.8 | 15.0 | 17.8 | 26.0 | 28.5 | 33.9 | 33.3 | 29.4 | 23.4 | 19.6 | 12.0 |
| Average daytime temperature (°C) | -2.7 | -1.0 | 7.6 | 12.7 | 17.6 | 21.4 | 26.1 | 27.0 | 24.0 | 16.2 | 10.2 | 1.8 |
| Average temperature (°C) | -8.5 | -5.6 | 2.2 | 7.9 | 11.8 | 16.7 | 21.6 | 23.3 | 19.7 | 11.4 | 5.7 | -2.7 |
| Average night temperature (°C) | -13.6 | -10.7 | -2.8 | 3.8 | 7.1 | 12.9 | 18.2 | 20.3 | 16.2 | 7.5 | 1.5 | -6.8 |
| Absolute minimum temperature (°C) | -23.6 | -19.7 | -12.3 | -4.2 | 0.5 | 7.0 | 13.5 | 15.3 | 9.1 | 0.4 | -7.5 | -15.6 |
| 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 | 15.2 | 14.9 | 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) | 7.3 | 7.5 | 8.4 | 8.3 | 9.2 | 9.1 | 9.2 | 7.2 | 7.0 | 8.1 | 6.6 | 6.3 |
| Precipitation (mm) | 32 | 51 | 88 | 168 | 63 | 75 | 71 | 109 | 162 | 101 | 160 | 41 |
| Sunny days | 18 | 13 | 18 | 12 | 11 | 11 | 13 | 5 | 12 | 15 | 14 | 17 |
| Rainy days | 2 | 1 | 9 | 18 | 20 | 19 | 18 | 26 | 18 | 16 | 16 | 7 |
| Snow days | 11 | 14 | 4 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 7 |
The largest precipitation sum in Kōwa is at