Average annual temperature is 16.6 °C
Absolute maximum temperature: 39.5 °C
Absolute minimum temperature: -5.4 °C
Number of sunny days: 162 days
Number of rainy days: 200 days
Number of snow days: 3 days
Look at detailed online map of Ōta’arai
* Weather data for Ōta’arai 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) | 14.3 | 19.1 | 25.7 | 28.0 | 32.8 | 32.0 | 39.5 | 38.7 | 35.4 | 27.7 | 25.8 | 19.9 |
| Average daytime temperature (°C) | 9.3 | 11.5 | 17.5 | 21.2 | 23.8 | 27.2 | 33.5 | 34.0 | 30.9 | 23.0 | 18.2 | 13.3 |
| Average temperature (°C) | 3.9 | 5.7 | 11.9 | 15.3 | 18.1 | 22.6 | 28.1 | 28.8 | 26.1 | 17.6 | 12.7 | 7.4 |
| Average night temperature (°C) | -0.3 | 1.0 | 7.0 | 10.3 | 13.5 | 18.8 | 23.5 | 24.9 | 22.7 | 13.2 | 8.2 | 2.9 |
| Absolute minimum temperature (°C) | -5.4 | -4.7 | -0.2 | 3.7 | 7.1 | 12.0 | 21.1 | 23.3 | 16.7 | 8.5 | 3.2 | -2.6 |
| 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 | 9.8 |
| 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) | 7.4 | 7.9 | 7.9 | 8.7 | 9.0 | 7.7 | 10.3 | 10.9 | 8.9 | 8.4 | 7.3 | 7.6 |
| Precipitation (mm) | 20 | 37 | 114 | 73 | 190 | 331 | 59 | 133 | 204 | 111 | 57 | 25 |
| Sunny days | 20 | 20 | 14 | 15 | 14 | 6 | 14 | 4 | 4 | 12 | 18 | 21 |
| Rainy days | 9 | 7 | 17 | 15 | 17 | 24 | 17 | 27 | 26 | 19 | 12 | 10 |
| Snow days | 2 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The best time to visit Ōta’arai during the most sunny months:
The largest precipitation sum in Ōta’arai is at