Average annual temperature is 16.7 °C
Absolute maximum temperature: 39.6 °C
Absolute minimum temperature: -5.7 °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 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) | 13.6 | 19.4 | 24.4 | 26.8 | 31.8 | 31.9 | 39.6 | 38.0 | 36.7 | 27.7 | 25.8 | 19.1 |
| Average daytime temperature (°C) | 9.1 | 11.4 | 17.4 | 20.9 | 23.3 | 27.0 | 34.1 | 33.8 | 30.7 | 22.9 | 18.1 | 13.2 |
| Average temperature (°C) | 3.9 | 5.8 | 12.0 | 15.4 | 18.0 | 22.6 | 28.5 | 28.8 | 26.1 | 17.7 | 12.8 | 7.6 |
| Average night temperature (°C) | -0.2 | 1.0 | 7.2 | 10.5 | 13.7 | 19.1 | 24.0 | 25.3 | 23.0 | 13.3 | 8.4 | 3.1 |
| Absolute minimum temperature (°C) | -5.7 | -4.6 | 0.7 | 3.4 | 7.4 | 12.4 | 21.1 | 23.3 | 16.6 | 8.5 | 3.1 | -2.7 |
| 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) | 10.0 | 10.9 | 12.0 | 13.1 | 14.1 | 14.6 | 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 | 8.7 | 8.7 | 7.3 | 10.4 | 11.0 | 8.8 | 8.4 | 7.1 | 7.8 |
| Precipitation (mm) | 26 | 38 | 111 | 95 | 165 | 314 | 41 | 109 | 238 | 94 | 62 | 34 |
| Sunny days | 19 | 20 | 18 | 15 | 15 | 6 | 12 | 5 | 10 | 15 | 18 | 22 |
| Rainy days | 9 | 7 | 13 | 15 | 16 | 24 | 19 | 26 | 20 | 16 | 12 | 9 |
| Snow days | 3 | 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