Average annual temperature is 17.1 °C
Absolute maximum temperature: 36.3 °C
Absolute minimum temperature: -3.9 °C
Number of sunny days: 133 days
Number of rainy days: 228 days
Number of snow days: 4 days
Look at detailed online map of Itoshima
* Weather data for Itoshima 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) | 16.4 | 15.6 | 22.6 | 24.3 | 27.8 | 29.2 | 33.0 | 36.3 | 30.3 | 25.3 | 26.4 | 22.3 |
| Average daytime temperature (°C) | 8.9 | 10.6 | 15.3 | 18.0 | 21.7 | 25.2 | 29.7 | 31.1 | 27.8 | 21.6 | 17.3 | 12.1 |
| Average temperature (°C) | 6.6 | 7.9 | 11.9 | 14.8 | 18.6 | 22.5 | 26.9 | 27.9 | 25.3 | 18.9 | 14.1 | 9.5 |
| Average night temperature (°C) | 4.3 | 5.3 | 8.8 | 11.9 | 15.9 | 20.5 | 24.6 | 25.1 | 23.2 | 16.4 | 11.2 | 7.0 |
| Absolute minimum temperature (°C) | -3.9 | 1.6 | 2.0 | 8.5 | 11.1 | 16.6 | 22.3 | 23.4 | 19.9 | 12.3 | 5.9 | 1.1 |
| 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 | 10.0 |
| Daylight mean duration (h) | 10.2 | 11.0 | 12.0 | 13.0 | 13.9 | 14.3 | 14.1 | 13.4 | 12.4 | 11.3 | 10.4 | 10.0 |
| 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) | 6.0 | 6.0 | 7.9 | 8.1 | 8.2 | 8.0 | 9.1 | 10.8 | 9.2 | 8.6 | 7.2 | 5.5 |
| Precipitation (mm) | 117 | 130 | 108 | 170 | 211 | 228 | 207 | 241 | 121 | 26 | 84 | 89 |
| Sunny days | 13 | 9 | 17 | 16 | 12 | 9 | 3 | 0 | 5 | 21 | 17 | 11 |
| Rainy days | 16 | 19 | 14 | 14 | 19 | 21 | 28 | 31 | 25 | 10 | 13 | 18 |
| Snow days | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 |
The best time to visit Itoshima during the most sunny months:
The largest precipitation sum in Itoshima is at