Average annual temperature is 15.9 °C
Absolute maximum temperature: 37.4 °C
Absolute minimum temperature: -6.1 °C
Number of sunny days: 146 days
Number of rainy days: 219 days
Look at detailed online map of Omitama
* Weather data for Omitama 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) | 14.0 | 16.8 | 24.0 | 27.2 | 32.2 | 32.2 | 37.4 | 36.9 | 35.1 | 26.1 | 24.7 | 19.3 |
| Average daytime temperature (°C) | 8.6 | 10.6 | 16.4 | 19.8 | 22.5 | 26.3 | 32.1 | 33.2 | 29.7 | 21.8 | 17.6 | 12.7 |
| Average temperature (°C) | 3.4 | 5.0 | 11.1 | 14.4 | 17.3 | 21.8 | 27.0 | 28.3 | 25.4 | 17.0 | 12.5 | 7.4 |
| Average night temperature (°C) | -0.6 | 0.4 | 6.7 | 9.9 | 12.8 | 18.3 | 22.9 | 24.7 | 22.3 | 13.1 | 8.4 | 3.2 |
| Absolute minimum temperature (°C) | -6.1 | -3.9 | 0.9 | 2.9 | 6.5 | 12.1 | 20.0 | 23.4 | 16.9 | 8.6 | 2.9 | -3.0 |
| 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 | 9.7 |
| Daylight minimum duration (h) | 9.0 | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 | 14.0 | 12.0 | 11.0 | 10.0 | 9.0 | 9.0 |
| Sunshine mean duration (h) | 7.3 | 7.7 | 8.0 | 8.8 | 9.0 | 7.3 | 10.4 | 11.2 | 8.5 | 8.1 | 7.1 | 7.3 |
| Precipitation (mm) | 30 | 34 | 111 | 106 | 148 | 352 | 50 | 71 | 286 | 129 | 59 | 35 |
| Sunny days | 18 | 18 | 14 | 16 | 14 | 6 | 12 | 1 | 3 | 12 | 12 | 20 |
| Rainy days | 13 | 10 | 17 | 14 | 17 | 24 | 19 | 30 | 27 | 19 | 18 | 11 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The best time to visit Omitama during the most sunny months:
The largest precipitation sum in Omitama is at