Average annual temperature is 16.6 °C
Absolute maximum temperature: 38.4 °C
Absolute minimum temperature: -5.4 °C
Number of sunny days: 164 days
Number of rainy days: 198 days
Number of snow days: 3 days
Look at detailed online map of Toshima
* Weather data for Toshima 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) | 14.1 | 19.0 | 25.2 | 27.4 | 33.2 | 32.2 | 38.4 | 37.9 | 36.0 | 27.9 | 25.5 | 19.5 |
| Average daytime temperature (°C) | 9.1 | 11.2 | 17.3 | 21.0 | 23.8 | 27.1 | 33.0 | 34.1 | 31.1 | 22.9 | 18.1 | 13.1 |
| Average temperature (°C) | 3.9 | 5.6 | 11.8 | 15.4 | 18.2 | 22.6 | 27.8 | 28.9 | 26.2 | 17.6 | 12.7 | 7.4 |
| Average night temperature (°C) | -0.4 | 0.7 | 7.0 | 10.6 | 13.7 | 18.9 | 23.4 | 25.1 | 22.8 | 13.2 | 8.4 | 2.9 |
| Absolute minimum temperature (°C) | -5.4 | -5.2 | -0.3 | 3.9 | 6.4 | 13.6 | 21.1 | 23.7 | 16.8 | 8.3 | 2.9 | -2.6 |
| 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 | 14.3 | 13.5 | 12.4 | 11.3 | 10.3 | 9.8 |
| Daylight minimum duration (h) | 9.0 | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 | 13.0 | 12.0 | 11.0 | 10.0 | 9.0 | 9.0 |
| Sunshine mean duration (h) | 7.3 | 7.9 | 7.7 | 8.7 | 8.8 | 7.6 | 10.3 | 10.9 | 8.8 | 8.3 | 7.1 | 7.5 |
| Precipitation (mm) | 23 | 37 | 124 | 93 | 199 | 312 | 50 | 119 | 213 | 122 | 59 | 24 |
| Sunny days | 18 | 19 | 15 | 16 | 14 | 7 | 14 | 5 | 6 | 14 | 16 | 20 |
| Rainy days | 11 | 8 | 16 | 14 | 17 | 23 | 17 | 26 | 24 | 17 | 14 | 11 |
| Snow days | 2 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The best time to visit Toshima during the most sunny months:
The largest precipitation sum in Toshima is at