Average annual temperature is 11.3 °C
Absolute maximum temperature: 31.3 °C
Absolute minimum temperature: -12.1 °C
Number of sunny days: 98 days
Number of rainy days: 224 days
Number of snow days: 43 days
Look at detailed online map of Iwase-gun
* Weather data for Iwase-gun 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) | 13.3 | 11.8 | 17.5 | 22.8 | 26.6 | 26.9 | 30.7 | 31.3 | 28.7 | 23.1 | 21.9 | 14.5 |
| Average daytime temperature (°C) | 1.4 | 2.3 | 10.7 | 14.9 | 18.5 | 22.2 | 27.6 | 28.4 | 25.1 | 16.8 | 11.6 | 6.6 |
| Average temperature (°C) | -2.2 | -1.2 | 5.9 | 9.4 | 13.6 | 18.3 | 23.2 | 24.0 | 21.2 | 12.3 | 7.4 | 2.4 |
| Average night temperature (°C) | -5.1 | -4.1 | 2.0 | 5.3 | 9.6 | 15.4 | 19.7 | 21.1 | 18.4 | 9.2 | 4.4 | -0.4 |
| Absolute minimum temperature (°C) | -12.1 | -8.7 | -4.4 | -1.5 | 3.7 | 8.9 | 15.9 | 19.4 | 10.5 | 4.3 | -2.3 | -5.7 |
| 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 | 12.0 | 11.0 | 10.0 | 9.0 |
| Daylight mean duration (h) | 9.9 | 10.8 | 12.0 | 13.2 | 14.2 | 14.7 | 14.4 | 13.6 | 12.4 | 11.2 | 10.2 | 9.7 |
| 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) | 4.8 | 6.3 | 7.8 | 8.4 | 8.5 | 7.5 | 9.3 | 10.0 | 7.5 | 8.2 | 5.3 | 5.0 |
| Precipitation (mm) | 69 | 70 | 118 | 93 | 159 | 289 | 132 | 153 | 205 | 122 | 155 | 78 |
| Sunny days | 4 | 7 | 12 | 15 | 15 | 8 | 2 | 3 | 3 | 10 | 11 | 8 |
| Rainy days | 8 | 9 | 17 | 15 | 16 | 22 | 29 | 28 | 27 | 21 | 18 | 14 |
| Snow days | 19 | 12 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 9 |
The best time to visit Iwase-gun during the most sunny months:
The largest precipitation sum in Iwase-gun is at