Average annual temperature is 12.7 °C
Absolute maximum temperature: 34.5 °C
Absolute minimum temperature: -12.8 °C
Number of sunny days: 140 days
Number of rainy days: 210 days
Number of snow days: 15 days
Look at detailed online map of Ōoka-hei
* Weather data for Ōoka-hei 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) | 11.6 | 14.7 | 21.8 | 26.5 | 29.8 | 28.4 | 32.5 | 33.6 | 34.5 | 22.5 | 23.1 | 18.6 |
| Average daytime temperature (°C) | 5.4 | 6.9 | 13.8 | 17.5 | 21.0 | 24.0 | 29.2 | 31.5 | 28.3 | 18.3 | 14.7 | 8.9 |
| Average temperature (°C) | 0.1 | 1.7 | 7.2 | 10.7 | 14.8 | 19.4 | 24.1 | 25.9 | 22.8 | 12.9 | 8.6 | 3.8 |
| Average night temperature (°C) | -4.3 | -2.3 | 2.0 | 5.4 | 9.7 | 15.7 | 19.9 | 21.2 | 18.6 | 8.8 | 4.0 | -0.3 |
| Absolute minimum temperature (°C) | -12.8 | -6.9 | -4.4 | -2.2 | 2.2 | 9.5 | 14.3 | 18.7 | 12.1 | 3.7 | -4.0 | -7.1 |
| 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 | 14.0 | 12.0 | 11.0 | 10.0 | 9.0 |
| Daylight mean duration (h) | 10.0 | 10.9 | 12.0 | 13.1 | 14.1 | 14.6 | 14.4 | 13.5 | 12.4 | 11.3 | 10.2 | 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) | 6.7 | 7.1 | 8.6 | 8.6 | 9.1 | 8.2 | 9.6 | 11.2 | 9.1 | 8.7 | 7.4 | 6.0 |
| Precipitation (mm) | 132 | 112 | 118 | 168 | 225 | 233 | 122 | 48 | 107 | 84 | 166 | 143 |
| Sunny days | 12 | 11 | 18 | 16 | 17 | 9 | 6 | 7 | 5 | 16 | 13 | 10 |
| Rainy days | 12 | 12 | 13 | 14 | 14 | 21 | 25 | 24 | 25 | 15 | 16 | 19 |
| Snow days | 7 | 5 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 2 |
The best time to visit Ōoka-hei during the most sunny months:
The largest precipitation sum in Ōoka-hei is at