Average annual temperature is 13.5 °C
Absolute maximum temperature: 34.0 °C
Absolute minimum temperature: -7.6 °C
Number of sunny days: 139 days
Number of rainy days: 213 days
Number of snow days: 13 days
Look at detailed online map of Jōku
* Weather data for Jōku 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) | 12.0 | 13.8 | 17.6 | 21.2 | 25.1 | 26.9 | 31.6 | 34.0 | 30.0 | 23.7 | 21.8 | 14.4 |
| Average daytime temperature (°C) | 4.7 | 5.8 | 11.9 | 15.6 | 18.3 | 23.0 | 27.5 | 29.7 | 26.7 | 19.7 | 14.2 | 8.3 |
| Average temperature (°C) | 1.1 | 1.5 | 7.1 | 11.1 | 14.6 | 20.0 | 24.5 | 27.4 | 23.7 | 15.3 | 10.2 | 4.4 |
| Average night temperature (°C) | -1.9 | -2.0 | 2.8 | 6.9 | 10.9 | 17.4 | 21.7 | 25.3 | 21.3 | 11.8 | 6.8 | 1.3 |
| Absolute minimum temperature (°C) | -7.6 | -6.2 | -3.7 | 1.6 | 3.6 | 12.1 | 17.1 | 22.8 | 14.4 | 6.1 | -0.6 | -3.0 |
| 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 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 |
| Daylight mean duration (h) | 9.8 | 10.8 | 12.0 | 13.2 | 14.3 | 14.8 | 14.5 | 13.6 | 12.4 | 11.2 | 10.1 | 9.5 |
| Daylight minimum duration (h) | 9.0 | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 | 9.0 |
| Sunshine mean duration (h) | 6.9 | 7.5 | 8.7 | 9.0 | 8.5 | 8.0 | 10.0 | 11.8 | 8.0 | 8.6 | 7.1 | 6.9 |
| Precipitation (mm) | 20 | 56 | 91 | 80 | 124 | 188 | 124 | 61 | 228 | 58 | 79 | 71 |
| Sunny days | 10 | 16 | 19 | 16 | 14 | 3 | 7 | 11 | 4 | 14 | 12 | 13 |
| Rainy days | 13 | 9 | 12 | 14 | 17 | 27 | 24 | 20 | 26 | 17 | 18 | 16 |
| Snow days | 8 | 3 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 |
The best time to visit Jōku during the most sunny months:
The largest precipitation sum in Jōku is at