Average annual temperature is 14.6 °C
Absolute maximum temperature: 35.9 °C
Absolute minimum temperature: -6.9 °C
Number of sunny days: 141 days
Number of rainy days: 215 days
Number of snow days: 9 days
Look at detailed online map of Ōichō
* Weather data for Ōichō 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) | 14.4 | 13.9 | 22.2 | 25.4 | 29.7 | 29.4 | 34.4 | 35.9 | 32.5 | 24.6 | 24.0 | 17.5 |
| Average daytime temperature (°C) | 7.2 | 9.1 | 15.7 | 18.3 | 22.5 | 25.5 | 30.6 | 31.9 | 29.4 | 20.8 | 16.0 | 10.6 |
| Average temperature (°C) | 2.3 | 3.7 | 9.8 | 12.9 | 17.2 | 21.1 | 25.6 | 26.4 | 24.3 | 15.0 | 10.7 | 5.3 |
| Average night temperature (°C) | -1.3 | -0.6 | 4.8 | 8.0 | 12.6 | 17.4 | 21.6 | 22.3 | 20.6 | 10.5 | 6.7 | 1.4 |
| Absolute minimum temperature (°C) | -6.9 | -4.4 | -2.8 | 1.4 | 4.7 | 11.1 | 19.2 | 20.5 | 15.3 | 4.8 | -0.6 | -3.1 |
| 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 | 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) | 7.3 | 7.5 | 8.7 | 8.4 | 8.9 | 7.4 | 10.0 | 10.8 | 9.5 | 8.5 | 7.7 | 7.0 |
| Precipitation (mm) | 47 | 80 | 161 | 166 | 261 | 504 | 167 | 155 | 136 | 96 | 114 | 107 |
| Sunny days | 15 | 16 | 14 | 14 | 14 | 9 | 7 | 4 | 7 | 17 | 13 | 11 |
| Rainy days | 10 | 12 | 17 | 16 | 17 | 21 | 24 | 27 | 23 | 14 | 17 | 17 |
| Snow days | 6 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 3 |
The best time to visit Ōichō during the most sunny months:
The largest precipitation sum in Ōichō is at