Average annual temperature is 11.0 °C
Absolute maximum temperature: 29.3 °C
Absolute minimum temperature: -12.2 °C
Number of sunny days: 124 days
Number of rainy days: 221 days
Number of snow days: 20 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) | 11.1 | 11.5 | 20.1 | 22.4 | 26.9 | 25.9 | 29.3 | 28.4 | 27.9 | 23.1 | 20.2 | 15.2 |
| Average daytime temperature (°C) | 4.2 | 6.1 | 11.8 | 14.4 | 18.0 | 21.4 | 26.0 | 25.5 | 24.5 | 16.7 | 12.4 | 7.6 |
| Average temperature (°C) | -0.7 | 0.9 | 6.5 | 9.3 | 13.1 | 17.3 | 21.4 | 21.3 | 20.0 | 11.5 | 7.7 | 2.6 |
| Average night temperature (°C) | -4.2 | -3.3 | 2.3 | 5.0 | 9.1 | 14.0 | 17.7 | 18.4 | 16.6 | 7.7 | 4.1 | -1.2 |
| Absolute minimum temperature (°C) | -12.2 | -9.6 | -4.6 | -1.2 | 2.2 | 10.2 | 15.1 | 16.0 | 9.8 | 2.8 | -2.3 | -8.3 |
| 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) | 7.7 | 7.5 | 8.3 | 8.5 | 8.7 | 7.0 | 10.2 | 10.5 | 9.8 | 8.9 | 7.8 | 7.3 |
| Precipitation (mm) | 43 | 120 | 216 | 313 | 456 | 637 | 144 | 302 | 210 | 144 | 173 | 111 |
| Sunny days | 19 | 10 | 11 | 8 | 8 | 6 | 6 | 4 | 6 | 14 | 14 | 18 |
| Rainy days | 7 | 8 | 19 | 22 | 23 | 24 | 25 | 27 | 24 | 17 | 16 | 9 |
| Snow days | 5 | 10 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 4 |
The largest precipitation sum in Ōma is at