Average annual temperature is 15.6 °C
Absolute maximum temperature: 35.8 °C
Absolute minimum temperature: -7.8 °C
Number of sunny days: 167 days
Number of rainy days: 196 days
Number of snow days: 2 days
Look at detailed online map of Itoi
* Weather data for Itoi 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) | 16.5 | 13.9 | 20.3 | 22.3 | 24.4 | 28.8 | 33.2 | 35.8 | 33.6 | 28.0 | 24.4 | 18.7 |
| Average daytime temperature (°C) | 9.4 | 9.6 | 15.2 | 18.3 | 21.6 | 24.6 | 29.5 | 31.3 | 29.2 | 22.4 | 16.7 | 11.7 |
| Average temperature (°C) | 3.9 | 4.7 | 10.1 | 13.4 | 17.6 | 21.5 | 26.2 | 28.0 | 25.6 | 17.0 | 12.0 | 6.9 |
| Average night temperature (°C) | -0.5 | 0.4 | 5.0 | 8.5 | 13.6 | 18.1 | 22.9 | 25.1 | 22.5 | 12.3 | 8.2 | 2.7 |
| Absolute minimum temperature (°C) | -7.8 | -3.4 | -1.2 | 2.3 | 7.1 | 12.9 | 19.9 | 22.7 | 17.6 | 7.9 | 1.4 | -2.7 |
| 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 | 13.0 | 12.0 | 11.0 | 10.0 | 9.0 |
| Daylight mean duration (h) | 10.1 | 10.9 | 12.0 | 13.1 | 14.0 | 14.5 | 14.2 | 13.4 | 12.4 | 11.3 | 10.4 | 9.9 |
| Daylight minimum duration (h) | 9.0 | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 | 13.0 | 12.0 | 11.0 | 10.0 | 10.0 | 9.0 |
| Sunshine mean duration (h) | 7.1 | 7.2 | 8.3 | 8.0 | 8.9 | 7.2 | 9.8 | 10.3 | 9.7 | 8.9 | 7.8 | 7.1 |
| Precipitation (mm) | 30 | 33 | 87 | 182 | 233 | 278 | 99 | 195 | 91 | 47 | 120 | 38 |
| Sunny days | 14 | 12 | 20 | 15 | 16 | 8 | 11 | 5 | 9 | 18 | 18 | 21 |
| Rainy days | 16 | 15 | 11 | 15 | 15 | 22 | 20 | 26 | 21 | 13 | 12 | 10 |
| Snow days | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Itoi is at