Average annual temperature is 15.6 °C
Absolute maximum temperature: 35.7 °C
Absolute minimum temperature: -5.4 °C
Number of sunny days: 162 days
Number of rainy days: 199 days
Number of snow days: 4 days
Look at detailed online map of Kasamatsuchō
* Weather data for Kasamatsuchō 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) | 16.1 | 15.1 | 22.1 | 26.5 | 30.1 | 30.8 | 35.4 | 35.7 | 33.7 | 26.7 | 25.3 | 19.8 |
| Average daytime temperature (°C) | 9.4 | 10.4 | 17.0 | 19.5 | 23.3 | 26.3 | 31.4 | 32.0 | 29.9 | 22.1 | 17.1 | 12.1 |
| Average temperature (°C) | 3.5 | 5.0 | 10.5 | 13.9 | 18.0 | 22.2 | 26.7 | 27.7 | 25.3 | 16.1 | 11.6 | 6.4 |
| Average night temperature (°C) | -1.1 | 0.5 | 4.9 | 8.7 | 13.2 | 18.5 | 22.6 | 24.3 | 21.7 | 11.3 | 7.2 | 1.9 |
| Absolute minimum temperature (°C) | -5.4 | -5.0 | -1.5 | 1.9 | 5.9 | 13.0 | 16.8 | 22.7 | 17.0 | 6.4 | -0.4 | -3.3 |
| 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 | 14.3 | 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) | 7.6 | 7.4 | 8.4 | 8.1 | 8.8 | 7.5 | 9.8 | 10.0 | 9.5 | 8.4 | 7.9 | 6.9 |
| Precipitation (mm) | 36 | 68 | 119 | 181 | 242 | 410 | 196 | 298 | 160 | 68 | 101 | 58 |
| Sunny days | 13 | 16 | 18 | 15 | 16 | 10 | 10 | 3 | 10 | 18 | 17 | 16 |
| Rainy days | 16 | 11 | 13 | 15 | 15 | 20 | 21 | 28 | 20 | 13 | 13 | 14 |
| Snow days | 2 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 |
The largest precipitation sum in Kasamatsuchō is at