Average annual temperature is 15.0 °C
Absolute maximum temperature: 38.7 °C
Absolute minimum temperature: -7.0 °C
Number of sunny days: 155 days
Number of rainy days: 200 days
Number of snow days: 10 days
Look at detailed online map of Itahana
* Weather data for Itahana 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) | 14.2 | 17.2 | 22.2 | 27.8 | 32.4 | 31.2 | 38.7 | 37.0 | 32.2 | 26.6 | 25.7 | 19.0 |
| Average daytime temperature (°C) | 8.0 | 9.3 | 16.2 | 20.4 | 23.0 | 25.6 | 31.9 | 31.5 | 28.3 | 21.2 | 16.3 | 11.3 |
| Average temperature (°C) | 2.5 | 4.0 | 10.5 | 13.9 | 17.3 | 21.4 | 26.7 | 26.8 | 24.2 | 15.6 | 10.7 | 5.6 |
| Average night temperature (°C) | -1.3 | 0.1 | 5.4 | 8.2 | 12.2 | 17.8 | 22.0 | 23.2 | 21.0 | 10.9 | 6.4 | 1.6 |
| Absolute minimum temperature (°C) | -7.0 | -3.3 | -1.7 | 1.4 | 5.1 | 11.4 | 19.3 | 21.1 | 14.8 | 5.7 | 0.3 | -3.9 |
| 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 | 13.0 | 12.0 | 11.0 | 10.0 | 9.0 |
| Daylight mean duration (h) | 10.0 | 10.9 | 12.0 | 13.1 | 14.1 | 14.6 | 14.4 | 13.5 | 12.4 | 11.3 | 10.3 | 9.7 |
| Daylight minimum duration (h) | 9.0 | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 | 14.0 | 12.0 | 11.0 | 10.0 | 9.0 | 9.0 |
| Sunshine mean duration (h) | 7.5 | 8.0 | 8.4 | 9.1 | 8.9 | 7.8 | 9.7 | 9.8 | 8.5 | 8.9 | 7.9 | 7.6 |
| Precipitation (mm) | 18 | 42 | 99 | 78 | 174 | 312 | 129 | 208 | 171 | 76 | 54 | 26 |
| Sunny days | 15 | 15 | 15 | 17 | 16 | 7 | 9 | 1 | 6 | 15 | 19 | 20 |
| Rainy days | 11 | 10 | 16 | 13 | 15 | 23 | 22 | 30 | 24 | 16 | 11 | 9 |
| Snow days | 5 | 3 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 |
The largest precipitation sum in Itahana is at