Average annual temperature is 15.7 °C
Absolute maximum temperature: 35.3 °C
Absolute minimum temperature: -5.4 °C
Number of sunny days: 151 days
Number of rainy days: 208 days
Number of snow days: 6 days
Look at detailed online map of Ōishichō
* Weather data for Ōishichō 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) | 14.5 | 17.9 | 22.0 | 25.7 | 30.9 | 32.0 | 35.3 | 34.0 | 31.8 | 26.0 | 24.1 | 19.0 |
| Average daytime temperature (°C) | 8.6 | 9.9 | 16.4 | 19.0 | 22.7 | 25.9 | 32.0 | 30.9 | 29.1 | 21.4 | 16.9 | 12.0 |
| Average temperature (°C) | 4.3 | 5.3 | 10.8 | 13.8 | 17.7 | 21.7 | 26.7 | 26.6 | 24.8 | 16.6 | 12.1 | 7.5 |
| Average night temperature (°C) | 1.1 | 1.7 | 6.1 | 9.0 | 13.5 | 18.3 | 22.5 | 23.7 | 21.6 | 12.8 | 8.3 | 4.1 |
| Absolute minimum temperature (°C) | -5.4 | -1.5 | 1.0 | 2.4 | 6.1 | 13.9 | 17.9 | 21.5 | 18.1 | 8.8 | 2.5 | -0.3 |
| 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 | 10.0 |
| Daylight mean duration (h) | 10.1 | 10.9 | 12.0 | 13.1 | 14.0 | 14.4 | 14.2 | 13.4 | 12.4 | 11.3 | 10.4 | 9.9 |
| Daylight minimum duration (h) | 9.0 | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 | 13.0 | 12.0 | 11.0 | 10.0 | 10.0 | 9.0 |
| Sunshine mean duration (h) | 7.3 | 7.0 | 8.3 | 8.3 | 8.8 | 6.7 | 10.8 | 9.6 | 9.3 | 8.6 | 7.9 | 7.5 |
| Precipitation (mm) | 41 | 37 | 97 | 182 | 239 | 465 | 98 | 379 | 133 | 141 | 77 | 58 |
| Sunny days | 14 | 13 | 15 | 12 | 15 | 8 | 6 | 1 | 8 | 17 | 21 | 21 |
| Rainy days | 15 | 12 | 15 | 18 | 16 | 22 | 25 | 30 | 22 | 14 | 9 | 10 |
| Snow days | 2 | 3 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The best time to visit Ōishichō during the most sunny months:
The largest precipitation sum in Ōishichō is at