Average annual temperature is 16.5 °C
Absolute maximum temperature: 40.7 °C
Absolute minimum temperature: -5.3 °C
Number of sunny days: 167 days
Number of rainy days: 195 days
Number of snow days: 3 days
Look at detailed online map of Ōtachichō
* Weather data for Ōtachichō 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) | 13.6 | 18.7 | 23.8 | 30.2 | 32.6 | 32.0 | 40.7 | 39.7 | 34.6 | 26.8 | 27.9 | 19.9 |
| Average daytime temperature (°C) | 9.2 | 11.3 | 18.0 | 21.8 | 24.2 | 27.1 | 34.3 | 34.0 | 30.4 | 22.8 | 18.1 | 12.8 |
| Average temperature (°C) | 3.7 | 5.5 | 12.1 | 15.3 | 18.4 | 22.7 | 28.5 | 28.6 | 25.9 | 17.4 | 12.2 | 6.9 |
| Average night temperature (°C) | -0.5 | 1.2 | 6.9 | 9.8 | 13.5 | 19.0 | 23.8 | 24.8 | 22.7 | 12.9 | 7.7 | 2.5 |
| Absolute minimum temperature (°C) | -5.3 | -3.1 | 1.0 | 4.2 | 7.0 | 13.7 | 21.0 | 23.2 | 15.4 | 8.4 | 1.2 | -3.7 |
| 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 | 9.7 |
| 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) | 7.5 | 8.2 | 8.2 | 9.1 | 9.2 | 7.7 | 10.0 | 10.5 | 8.7 | 8.7 | 7.8 | 7.8 |
| Precipitation (mm) | 13 | 41 | 112 | 70 | 173 | 297 | 133 | 180 | 183 | 92 | 61 | 18 |
| Sunny days | 19 | 18 | 17 | 16 | 14 | 4 | 9 | 3 | 5 | 18 | 21 | 23 |
| Rainy days | 10 | 9 | 14 | 14 | 17 | 26 | 22 | 28 | 25 | 13 | 9 | 8 |
| Snow days | 2 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Ōtachichō is at