Average annual temperature is 16.1 °C
Absolute maximum temperature: 36.5 °C
Absolute minimum temperature: -3.1 °C
Number of sunny days: 170 days
Number of rainy days: 195 days
Look at detailed online map of Innoshima
* Weather data for Innoshima 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) | 14.9 | 14.9 | 20.5 | 23.1 | 24.2 | 27.6 | 35.4 | 36.5 | 33.0 | 28.2 | 25.5 | 21.5 |
| Average daytime temperature (°C) | 9.0 | 9.4 | 14.6 | 17.1 | 20.9 | 23.7 | 29.9 | 32.4 | 30.2 | 23.0 | 17.8 | 11.8 |
| Average temperature (°C) | 6.0 | 6.0 | 10.5 | 13.5 | 17.5 | 20.9 | 25.9 | 28.1 | 25.9 | 17.8 | 13.0 | 7.1 |
| Average night temperature (°C) | 3.0 | 2.2 | 6.6 | 9.9 | 14.3 | 18.4 | 22.8 | 24.7 | 22.2 | 12.7 | 8.6 | 2.7 |
| Absolute minimum temperature (°C) | -3.1 | -1.9 | 1.0 | 5.7 | 7.4 | 13.5 | 18.7 | 22.7 | 18.4 | 6.7 | 1.6 | -3.1 |
| 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 | 14.4 | 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 | 7.0 | 8.6 | 8.0 | 8.9 | 7.6 | 9.7 | 10.2 | 9.3 | 8.4 | 8.1 | 7.1 |
| Precipitation (mm) | 38 | 45 | 91 | 206 | 215 | 220 | 97 | 144 | 43 | 23 | 50 | 49 |
| Sunny days | 15 | 14 | 19 | 15 | 17 | 13 | 12 | 3 | 9 | 20 | 17 | 16 |
| Rainy days | 16 | 14 | 12 | 15 | 14 | 17 | 19 | 28 | 21 | 11 | 13 | 15 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Innoshima is at