Average annual temperature is 15.2 °C
Absolute maximum temperature: 34.6 °C
Absolute minimum temperature: -5.4 °C
Number of sunny days: 122 days
Number of rainy days: 239 days
Number of snow days: 4 days
Look at detailed online map of Ōma
* Weather data for Ōma 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) | 15.8 | 16.1 | 26.4 | 24.7 | 29.1 | 31.0 | 34.6 | 32.1 | 31.8 | 29.1 | 24.2 | 20.7 |
| Average daytime temperature (°C) | 9.3 | 10.7 | 15.9 | 18.5 | 21.6 | 25.2 | 30.0 | 29.8 | 28.4 | 21.1 | 16.9 | 12.5 |
| Average temperature (°C) | 3.9 | 5.5 | 10.8 | 13.6 | 17.0 | 21.1 | 25.5 | 25.6 | 24.0 | 16.0 | 12.2 | 7.2 |
| Average night temperature (°C) | -0.4 | 0.9 | 6.2 | 9.2 | 13.2 | 17.8 | 21.7 | 22.4 | 20.6 | 11.6 | 8.2 | 3.1 |
| Absolute minimum temperature (°C) | -5.4 | -5.0 | -0.6 | 3.2 | 6.8 | 12.7 | 19.0 | 19.5 | 15.2 | 7.2 | 2.2 | -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) | 10.1 | 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) | 7.5 | 7.3 | 7.9 | 8.3 | 8.4 | 6.9 | 10.2 | 10.3 | 9.6 | 8.9 | 7.4 | 7.4 |
| Precipitation (mm) | 40 | 111 | 222 | 245 | 344 | 622 | 104 | 349 | 190 | 152 | 149 | 132 |
| Sunny days | 17 | 11 | 9 | 13 | 9 | 6 | 6 | 1 | 6 | 11 | 15 | 18 |
| Rainy days | 11 | 16 | 22 | 17 | 22 | 24 | 25 | 30 | 24 | 20 | 15 | 13 |
| Snow days | 3 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Ōma is at