Average annual temperature is 15.7 °C
Absolute maximum temperature: 36.8 °C
Absolute minimum temperature: -6.0 °C
Number of sunny days: 183 days
Number of rainy days: 180 days
Number of snow days: 2 days
Look at detailed online map of Hachiōji
* Weather data for Hachiōji 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) | 13.4 | 18.8 | 23.4 | 25.8 | 30.2 | 31.5 | 36.8 | 36.2 | 33.6 | 26.8 | 25.7 | 19.8 |
| Average daytime temperature (°C) | 9.0 | 11.1 | 16.6 | 20.4 | 22.5 | 25.9 | 32.2 | 32.6 | 29.7 | 22.1 | 17.8 | 13.0 |
| Average temperature (°C) | 3.5 | 5.2 | 10.9 | 14.7 | 17.3 | 21.7 | 27.0 | 27.8 | 25.1 | 16.4 | 11.9 | 6.7 |
| Average night temperature (°C) | -1.1 | 0.3 | 5.9 | 9.5 | 12.3 | 18.2 | 22.5 | 23.8 | 21.6 | 11.2 | 7.3 | 1.7 |
| Absolute minimum temperature (°C) | -6.0 | -4.0 | -1.5 | 1.2 | 5.9 | 12.9 | 18.5 | 20.9 | 15.9 | 6.1 | 0.9 | -4.2 |
| 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) | 7.3 | 7.8 | 7.6 | 8.6 | 8.5 | 7.2 | 10.2 | 10.9 | 8.7 | 8.4 | 7.1 | 7.7 |
| Precipitation (mm) | 32 | 51 | 141 | 95 | 173 | 330 | 52 | 153 | 226 | 98 | 73 | 39 |
| Sunny days | 21 | 16 | 18 | 13 | 14 | 7 | 16 | 7 | 9 | 18 | 21 | 23 |
| Rainy days | 9 | 11 | 13 | 17 | 17 | 23 | 15 | 24 | 21 | 13 | 9 | 8 |
| Snow days | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The best time to visit Hachiōji during the most sunny months:
The largest precipitation sum in Hachiōji is at