Average annual temperature is 16.0 °C
Absolute maximum temperature: 36.7 °C
Absolute minimum temperature: -6.4 °C
Number of sunny days: 175 days
Number of rainy days: 186 days
Number of snow days: 4 days
Look at detailed online map of Koganei
* Weather data for Koganei 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) | 13.3 | 17.8 | 23.6 | 25.8 | 29.6 | 30.9 | 36.7 | 35.7 | 33.2 | 27.1 | 24.7 | 19.9 |
| Average daytime temperature (°C) | 8.7 | 10.8 | 16.7 | 20.3 | 22.4 | 26.0 | 32.1 | 32.3 | 29.5 | 22.1 | 17.8 | 12.9 |
| Average temperature (°C) | 3.6 | 5.5 | 11.4 | 14.9 | 17.5 | 21.8 | 27.0 | 27.7 | 25.3 | 17.0 | 12.2 | 7.1 |
| Average night temperature (°C) | -0.7 | 1.4 | 7.0 | 10.4 | 13.1 | 18.6 | 22.9 | 24.1 | 22.1 | 12.5 | 8.1 | 2.4 |
| Absolute minimum temperature (°C) | -6.4 | -2.9 | 0.7 | 3.3 | 7.6 | 14.2 | 19.4 | 21.7 | 17.0 | 8.0 | 1.8 | -3.5 |
| 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) | 7.2 | 7.7 | 7.5 | 8.6 | 8.5 | 7.3 | 10.4 | 11.0 | 8.6 | 8.5 | 7.1 | 7.7 |
| Precipitation (mm) | 30 | 46 | 144 | 105 | 169 | 349 | 75 | 184 | 241 | 109 | 66 | 34 |
| Sunny days | 18 | 17 | 16 | 14 | 14 | 7 | 11 | 7 | 11 | 17 | 19 | 24 |
| Rainy days | 10 | 10 | 15 | 16 | 17 | 23 | 20 | 24 | 19 | 14 | 11 | 7 |
| Snow days | 3 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The best time to visit Koganei during the most sunny months:
The largest precipitation sum in Koganei is at