Average annual temperature is 17.9 °C
Absolute maximum temperature: 31.0 °C
Absolute minimum temperature: -1.2 °C
Number of sunny days: 142 days
Number of rainy days: 222 days
Number of snow days: 1 day
Look at detailed online map of Katashima
* Weather data for Katashima 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) | 16.8 | 15.7 | 19.1 | 21.6 | 24.7 | 26.9 | 30.5 | 31.0 | 28.6 | 24.8 | 23.4 | 21.1 |
| Average daytime temperature (°C) | 10.4 | 11.2 | 14.4 | 16.8 | 19.6 | 23.0 | 27.9 | 28.9 | 27.1 | 21.8 | 17.4 | 13.1 |
| Average temperature (°C) | 8.8 | 9.9 | 13.0 | 15.3 | 18.4 | 21.9 | 26.5 | 27.5 | 25.9 | 20.4 | 15.7 | 11.3 |
| Average night temperature (°C) | 7.0 | 8.0 | 11.3 | 13.9 | 17.3 | 20.9 | 25.2 | 26.3 | 24.8 | 18.8 | 13.5 | 9.3 |
| Absolute minimum temperature (°C) | -1.2 | 4.8 | 5.4 | 10.3 | 14.2 | 18.0 | 22.9 | 24.8 | 22.8 | 15.0 | 7.7 | 2.4 |
| 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) | 6.4 | 6.3 | 8.0 | 8.2 | 8.2 | 8.1 | 9.0 | 10.8 | 9.2 | 8.8 | 7.3 | 5.7 |
| Precipitation (mm) | 121 | 139 | 99 | 139 | 202 | 216 | 255 | 120 | 133 | 21 | 103 | 88 |
| Sunny days | 9 | 10 | 17 | 18 | 14 | 12 | 6 | 9 | 11 | 16 | 13 | 7 |
| Rainy days | 21 | 18 | 14 | 12 | 17 | 18 | 25 | 22 | 19 | 15 | 17 | 24 |
| Snow days | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The best time to visit Katashima during the most sunny months:
The largest precipitation sum in Katashima is at