Average annual temperature is 13.7 °C
Absolute maximum temperature: 32.8 °C
Absolute minimum temperature: -12.4 °C
Number of sunny days: 175 days
Number of rainy days: 185 days
Number of snow days: 5 days
Look at detailed online map of Josan
* Weather data for Josan South Korea 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 | 12.5 | 21.9 | 23.2 | 24.5 | 30.2 | 30.2 | 32.8 | 29.3 | 22.7 | 24.1 | 17.4 |
| Average daytime temperature (°C) | 5.3 | 8.2 | 15.1 | 16.9 | 20.4 | 25.2 | 26.9 | 29.0 | 25.9 | 19.8 | 12.5 | 7.5 |
| Average temperature (°C) | 1.0 | 3.0 | 9.2 | 12.2 | 16.6 | 21.1 | 24.1 | 25.6 | 22.5 | 15.4 | 8.5 | 3.8 |
| Average night temperature (°C) | -2.8 | -0.7 | 4.8 | 8.3 | 13.3 | 18.0 | 22.1 | 22.9 | 19.8 | 11.9 | 5.0 | 0.8 |
| Absolute minimum temperature (°C) | -12.4 | -5.0 | -2.2 | 2.8 | 7.7 | 14.5 | 19.3 | 18.8 | 14.6 | 7.3 | -2.9 | -8.3 |
| 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) | 7.5 | 7.1 | 8.5 | 7.4 | 7.1 | 8.2 | 5.8 | 10.5 | 8.1 | 8.7 | 7.6 | 5.9 |
| Precipitation (mm) | 49 | 41 | 43 | 140 | 247 | 181 | 412 | 310 | 159 | 18 | 103 | 73 |
| Sunny days | 23 | 19 | 24 | 12 | 12 | 10 | 1 | 6 | 9 | 20 | 19 | 20 |
| Rainy days | 7 | 9 | 7 | 18 | 19 | 20 | 30 | 25 | 21 | 11 | 11 | 7 |
| Snow days | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 4 |
The best time to visit Josan during the most sunny months:
The largest precipitation sum in Josan is at