Average annual temperature is 16.2 °C
Absolute maximum temperature: 36.9 °C
Absolute minimum temperature: -4.1 °C
Number of sunny days: 169 days
Number of rainy days: 193 days
Number of snow days: 3 days
Look at detailed online map of Kogasu
* Weather data for Kogasu 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) | 15.5 | 14.5 | 19.9 | 25.3 | 27.1 | 29.9 | 36.1 | 36.9 | 32.3 | 25.7 | 25.3 | 19.4 |
| Average daytime temperature (°C) | 9.2 | 10.2 | 16.0 | 18.7 | 22.4 | 25.6 | 31.5 | 32.1 | 29.7 | 22.2 | 17.4 | 12.5 |
| Average temperature (°C) | 4.8 | 5.7 | 10.8 | 14.3 | 18.3 | 22.4 | 27.3 | 28.1 | 25.7 | 16.8 | 12.3 | 7.3 |
| Average night temperature (°C) | 1.0 | 2.1 | 6.5 | 10.2 | 14.6 | 19.4 | 23.2 | 24.9 | 22.4 | 12.6 | 8.2 | 3.1 |
| Absolute minimum temperature (°C) | -4.1 | -1.6 | 1.5 | 4.9 | 8.6 | 13.8 | 19.0 | 23.1 | 18.2 | 8.5 | 1.9 | -2.5 |
| 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 | 8.3 | 8.3 | 9.1 | 7.1 | 10.5 | 10.3 | 9.5 | 8.6 | 7.9 | 7.3 |
| Precipitation (mm) | 30 | 60 | 91 | 140 | 221 | 354 | 108 | 243 | 159 | 80 | 74 | 61 |
| Sunny days | 18 | 16 | 18 | 17 | 18 | 11 | 12 | 3 | 6 | 17 | 19 | 14 |
| Rainy days | 11 | 12 | 13 | 13 | 13 | 19 | 19 | 28 | 24 | 14 | 11 | 16 |
| Snow days | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 |
The largest precipitation sum in Kogasu is at