Average annual temperature is 8.4 °C
Absolute maximum temperature: 33.9 °C
Absolute minimum temperature: -18.5 °C
Number of sunny days: 118 days
Number of rainy days: 179 days
Number of snow days: 68 days
Look at detailed online map of Kaiganchō
* Weather data for Kaiganchō 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) | 4.9 | 6.6 | 14.8 | 20.2 | 26.5 | 30.7 | 31.0 | 33.9 | 29.6 | 23.3 | 18.6 | 10.9 |
| Average daytime temperature (°C) | -4.4 | -3.2 | 6.4 | 11.7 | 16.9 | 21.8 | 23.9 | 26.8 | 23.0 | 15.8 | 9.1 | 0.0 |
| Average temperature (°C) | -8.1 | -6.6 | 1.5 | 6.7 | 11.2 | 17.1 | 20.7 | 23.1 | 19.6 | 11.9 | 5.6 | -3.4 |
| Average night temperature (°C) | -11.8 | -10.0 | -2.9 | 3.4 | 7.2 | 13.6 | 18.1 | 20.8 | 16.8 | 9.0 | 2.4 | -6.6 |
| Absolute minimum temperature (°C) | -18.5 | -14.5 | -10.7 | -4.7 | 1.1 | 7.1 | 12.4 | 15.4 | 11.7 | 4.0 | -5.9 | -17.2 |
| 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) | 9.3 | 10.5 | 11.9 | 13.5 | 14.8 | 15.4 | 15.1 | 14.0 | 12.5 | 11.0 | 9.7 | 9.0 |
| Daylight minimum duration (h) | 8.0 | 9.0 | 11.0 | 12.0 | 14.0 | 15.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 | 8.0 |
| Sunshine mean duration (h) | 6.3 | 6.7 | 8.0 | 7.9 | 10.4 | 10.0 | 9.3 | 9.1 | 8.1 | 7.4 | 6.1 | 5.7 |
| Precipitation (mm) | 24 | 48 | 57 | 102 | 55 | 106 | 74 | 140 | 117 | 108 | 83 | 48 |
| Sunny days | 7 | 2 | 13 | 6 | 15 | 11 | 8 | 12 | 9 | 10 | 11 | 14 |
| Rainy days | 1 | 2 | 16 | 22 | 16 | 19 | 23 | 19 | 21 | 21 | 14 | 5 |
| Snow days | 23 | 24 | 2 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 5 | 12 |
The best time to visit Kaiganchō during the most sunny months:
Months with the longest average daylight duration in Kaiganchō:
The largest precipitation sum in Kaiganchō is at