Average annual temperature is 13.1 °C
Absolute maximum temperature: 34.5 °C
Absolute minimum temperature: -16.8 °C
Number of sunny days: 188 days
Number of rainy days: 167 days
Number of snow days: 10 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) | 12.7 | 11.1 | 25.6 | 27.1 | 31.5 | 34.4 | 33.9 | 34.5 | 30.8 | 22.5 | 23.7 | 17.2 |
| Average daytime temperature (°C) | 2.5 | 6.8 | 15.7 | 19.1 | 24.7 | 27.7 | 29.7 | 30.6 | 26.6 | 19.4 | 10.6 | 4.9 |
| Average temperature (°C) | -2.5 | 1.1 | 8.5 | 12.9 | 18.5 | 22.4 | 25.8 | 26.2 | 22.6 | 14.4 | 5.9 | 1.0 |
| Average night temperature (°C) | -7.5 | -3.2 | 2.7 | 7.7 | 13.3 | 18.0 | 22.8 | 22.9 | 19.3 | 10.0 | 1.5 | -2.6 |
| Absolute minimum temperature (°C) | -16.8 | -6.5 | -4.2 | 0.5 | 5.9 | 13.7 | 20.2 | 18.1 | 13.1 | 4.8 | -7.3 | -13.8 |
| 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 | 12.0 | 11.0 | 10.0 | 9.0 |
| Daylight mean duration (h) | 9.9 | 10.8 | 12.0 | 13.2 | 14.2 | 14.7 | 14.4 | 13.6 | 12.4 | 11.2 | 10.2 | 9.7 |
| 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) | 7.1 | 8.1 | 9.2 | 7.9 | 8.6 | 9.6 | 7.5 | 8.4 | 7.2 | 8.3 | 7.2 | 6.0 |
| Precipitation (mm) | 35 | 1 | 17 | 76 | 125 | 136 | 449 | 320 | 216 | 20 | 131 | 81 |
| Sunny days | 17 | 24 | 24 | 15 | 19 | 14 | 5 | 6 | 10 | 22 | 15 | 17 |
| Rainy days | 9 | 4 | 7 | 15 | 12 | 16 | 26 | 25 | 20 | 9 | 15 | 9 |
| Snow days | 5 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 5 |
The largest precipitation sum in Josan is at