Average annual temperature is 12.2 °C
Absolute maximum temperature: 34.4 °C
Absolute minimum temperature: -13.9 °C
Number of sunny days: 86 days
Number of rainy days: 245 days
Number of snow days: 34 days
Look at detailed online map of Koyaba
* Weather data for Koyaba 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) | 11.8 | 11.3 | 20.1 | 23.2 | 29.4 | 29.9 | 34.3 | 34.4 | 32.9 | 23.4 | 22.0 | 14.6 |
| Average daytime temperature (°C) | 2.9 | 3.2 | 12.7 | 16.1 | 20.2 | 24.2 | 28.7 | 31.8 | 26.9 | 18.5 | 12.6 | 6.4 |
| Average temperature (°C) | -1.2 | -1.0 | 6.0 | 10.0 | 14.4 | 19.8 | 24.3 | 27.2 | 22.3 | 13.1 | 8.2 | 2.4 |
| Average night temperature (°C) | -5.6 | -5.8 | 0.5 | 4.8 | 9.2 | 16.2 | 20.5 | 24.0 | 19.1 | 8.7 | 4.7 | -1.0 |
| Absolute minimum temperature (°C) | -13.9 | -13.1 | -6.7 | -1.0 | 0.5 | 9.7 | 16.7 | 21.1 | 10.6 | 3.1 | -5.5 | -4.4 |
| 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 | 13.0 | 11.0 | 10.0 | 9.0 |
| Daylight mean duration (h) | 9.7 | 10.7 | 12.0 | 13.3 | 14.4 | 14.9 | 14.6 | 13.7 | 12.5 | 11.2 | 10.0 | 9.4 |
| 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) | 5.9 | 7.1 | 8.9 | 8.8 | 8.9 | 7.9 | 9.1 | 11.0 | 7.0 | 8.2 | 5.4 | 4.8 |
| Precipitation (mm) | 71 | 66 | 89 | 139 | 127 | 167 | 232 | 114 | 178 | 71 | 144 | 123 |
| Sunny days | 6 | 8 | 16 | 11 | 9 | 4 | 6 | 1 | 2 | 12 | 6 | 5 |
| Rainy days | 10 | 10 | 14 | 19 | 22 | 26 | 25 | 30 | 28 | 19 | 23 | 19 |
| Snow days | 15 | 10 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 7 |
The best time to visit Koyaba during the most sunny months:
The largest precipitation sum in Koyaba is at