Average annual temperature is 15.3 °C
Absolute maximum temperature: 36.2 °C
Absolute minimum temperature: -14.0 °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 Okamoto
* Weather data for Okamoto 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) | 16.0 | 14.5 | 22.5 | 24.2 | 25.8 | 29.4 | 33.4 | 36.2 | 34.0 | 27.1 | 25.8 | 19.8 |
| Average daytime temperature (°C) | 8.3 | 9.1 | 15.7 | 18.3 | 22.0 | 25.0 | 30.1 | 32.5 | 29.8 | 21.9 | 16.5 | 11.3 |
| Average temperature (°C) | 3.0 | 4.2 | 10.1 | 13.3 | 17.3 | 21.2 | 26.1 | 27.8 | 25.4 | 16.4 | 11.3 | 6.4 |
| Average night temperature (°C) | -1.6 | -0.3 | 5.2 | 9.0 | 13.2 | 17.7 | 22.6 | 24.4 | 22.0 | 11.9 | 7.4 | 2.2 |
| Absolute minimum temperature (°C) | -14.0 | -4.5 | -1.1 | 1.6 | 5.3 | 12.4 | 17.9 | 22.6 | 17.2 | 6.7 | 0.5 | -4.3 |
| 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 | 10.4 | 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) | 6.7 | 6.8 | 8.4 | 7.7 | 8.8 | 7.0 | 9.7 | 10.2 | 9.6 | 8.9 | 7.6 | 6.9 |
| Precipitation (mm) | 39 | 37 | 103 | 178 | 239 | 286 | 87 | 207 | 85 | 39 | 123 | 38 |
| Sunny days | 16 | 11 | 19 | 15 | 15 | 9 | 11 | 3 | 10 | 17 | 20 | 21 |
| Rainy days | 13 | 16 | 12 | 15 | 16 | 21 | 20 | 28 | 20 | 14 | 10 | 10 |
| Snow days | 2 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Okamoto is at