Average annual temperature is 15.2 °C
Absolute maximum temperature: 34.4 °C
Absolute minimum temperature: -7.7 °C
Number of sunny days: 141 days
Number of rainy days: 216 days
Number of snow days: 8 days
Look at detailed online map of Okamotochō
* Weather data for Okamotochō 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) | 14.8 | 15.2 | 22.0 | 24.0 | 28.5 | 29.5 | 34.4 | 34.1 | 32.4 | 24.4 | 24.6 | 18.4 |
| Average daytime temperature (°C) | 7.2 | 8.2 | 15.1 | 18.2 | 21.8 | 25.0 | 30.6 | 31.4 | 29.4 | 20.6 | 15.9 | 10.8 |
| Average temperature (°C) | 3.0 | 4.3 | 9.9 | 13.3 | 17.3 | 21.4 | 26.5 | 27.4 | 25.1 | 16.3 | 11.5 | 6.4 |
| Average night temperature (°C) | -0.3 | 1.0 | 5.6 | 9.1 | 13.4 | 18.2 | 23.1 | 24.3 | 21.7 | 12.6 | 8.1 | 2.8 |
| Absolute minimum temperature (°C) | -7.7 | -2.6 | -0.2 | 4.1 | 6.8 | 13.0 | 20.8 | 22.3 | 17.7 | 8.1 | 1.9 | -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) | 10.1 | 10.9 | 12.0 | 13.1 | 14.0 | 14.5 | 14.2 | 13.4 | 12.4 | 11.3 | 10.3 | 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) | 6.9 | 5.9 | 8.4 | 7.8 | 9.3 | 6.6 | 10.0 | 9.9 | 9.7 | 8.7 | 7.3 | 7.0 |
| Precipitation (mm) | 48 | 50 | 138 | 161 | 244 | 338 | 123 | 184 | 76 | 62 | 97 | 55 |
| Sunny days | 8 | 10 | 16 | 14 | 16 | 7 | 10 | 4 | 8 | 13 | 16 | 19 |
| Rainy days | 20 | 13 | 15 | 16 | 15 | 23 | 21 | 27 | 22 | 18 | 14 | 12 |
| Snow days | 3 | 5 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Okamotochō is at