Average annual temperature is 16.0 °C
Absolute maximum temperature: 37.1 °C
Absolute minimum temperature: -9.1 °C
Number of sunny days: 146 days
Number of rainy days: 215 days
Number of snow days: 4 days
Look at detailed online map of Kosobechō
* Weather data for Kosobechō 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) | 16.0 | 16.2 | 23.7 | 25.8 | 26.5 | 30.2 | 35.6 | 37.1 | 33.9 | 25.6 | 27.1 | 20.2 |
| Average daytime temperature (°C) | 9.0 | 9.8 | 16.7 | 19.3 | 22.9 | 26.0 | 31.6 | 33.2 | 31.2 | 22.3 | 17.4 | 12.3 |
| Average temperature (°C) | 3.7 | 4.8 | 10.6 | 13.9 | 18.0 | 22.1 | 27.1 | 28.6 | 26.2 | 16.9 | 12.2 | 7.2 |
| Average night temperature (°C) | -0.8 | 0.2 | 5.3 | 8.9 | 13.7 | 18.5 | 23.5 | 25.2 | 22.4 | 12.2 | 7.9 | 2.7 |
| Absolute minimum temperature (°C) | -9.1 | -4.0 | -2.1 | 2.5 | 6.6 | 11.3 | 19.9 | 23.4 | 18.2 | 8.2 | 0.8 | -3.9 |
| 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 | 6.2 | 8.5 | 8.0 | 9.4 | 6.9 | 10.0 | 10.0 | 9.9 | 8.7 | 7.4 | 7.0 |
| Precipitation (mm) | 45 | 41 | 110 | 179 | 266 | 339 | 97 | 203 | 94 | 50 | 112 | 48 |
| Sunny days | 6 | 11 | 18 | 15 | 15 | 8 | 10 | 6 | 10 | 13 | 16 | 18 |
| Rainy days | 23 | 15 | 13 | 15 | 16 | 22 | 21 | 25 | 20 | 18 | 14 | 13 |
| Snow days | 2 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Kosobechō is at