Average annual temperature is 15.8 °C
Absolute maximum temperature: 36.1 °C
Absolute minimum temperature: -5.7 °C
Number of sunny days: 154 days
Number of rainy days: 209 days
Number of snow days: 2 days
Look at detailed online map of Ōarai
* Weather data for Ōarai 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) | 14.2 | 16.6 | 23.1 | 25.6 | 28.9 | 29.0 | 36.1 | 35.1 | 34.5 | 25.4 | 25.2 | 19.1 |
| Average daytime temperature (°C) | 8.7 | 10.3 | 15.6 | 18.8 | 20.8 | 24.6 | 30.5 | 31.8 | 28.8 | 21.4 | 17.6 | 12.7 |
| Average temperature (°C) | 3.8 | 5.5 | 11.1 | 14.4 | 16.8 | 21.3 | 26.3 | 27.9 | 25.3 | 16.9 | 12.4 | 7.2 |
| Average night temperature (°C) | 0.1 | 1.2 | 7.2 | 10.3 | 13.0 | 18.4 | 22.5 | 24.7 | 22.5 | 13.0 | 8.3 | 2.8 |
| Absolute minimum temperature (°C) | -5.7 | -2.1 | -0.8 | 3.2 | 7.0 | 13.3 | 19.8 | 22.8 | 18.0 | 8.0 | 3.6 | -3.3 |
| 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) | 10.0 | 10.9 | 12.0 | 13.1 | 14.1 | 14.6 | 14.4 | 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 | 7.6 | 8.0 | 9.0 | 9.1 | 7.7 | 10.3 | 11.6 | 8.6 | 8.3 | 7.1 | 7.2 |
| Precipitation (mm) | 40 | 43 | 105 | 93 | 144 | 347 | 105 | 91 | 228 | 127 | 65 | 46 |
| Sunny days | 19 | 15 | 15 | 15 | 14 | 7 | 13 | 5 | 4 | 12 | 14 | 21 |
| Rainy days | 11 | 12 | 16 | 15 | 17 | 23 | 18 | 26 | 26 | 19 | 16 | 10 |
| Snow days | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The best time to visit Ōarai during the most sunny months:
The largest precipitation sum in Ōarai is at