Average annual temperature is 13.4 °C
Absolute maximum temperature: 33.1 °C
Absolute minimum temperature: -15.4 °C
Number of sunny days: 189 days
Number of rainy days: 170 days
Number of snow days: 6 days
Look at detailed online map of Jangseong
* Weather data for Jangseong 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) | 15.1 | 13.5 | 21.6 | 25.8 | 28.4 | 30.2 | 33.1 | 32.6 | 28.5 | 22.1 | 24.2 | 17.6 |
| Average daytime temperature (°C) | 4.6 | 8.3 | 15.3 | 17.3 | 20.8 | 25.6 | 28.2 | 28.9 | 25.0 | 19.4 | 12.3 | 6.8 |
| Average temperature (°C) | 0.1 | 3.2 | 9.6 | 12.4 | 16.6 | 21.2 | 24.8 | 25.4 | 21.7 | 14.7 | 7.6 | 2.5 |
| Average night temperature (°C) | -3.5 | -0.5 | 5.3 | 8.1 | 12.9 | 17.8 | 22.3 | 22.8 | 19.1 | 11.1 | 3.5 | -0.7 |
| Absolute minimum temperature (°C) | -15.4 | -6.2 | -3.2 | 1.7 | 7.2 | 14.6 | 17.9 | 21.2 | 15.2 | 6.4 | -6.5 | -11.9 |
| 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 | 14.3 | 13.5 | 12.4 | 11.3 | 10.3 | 9.8 |
| Daylight minimum duration (h) | 9.0 | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 | 13.0 | 12.0 | 11.0 | 10.0 | 9.0 | 9.0 |
| Sunshine mean duration (h) | 7.8 | 7.5 | 8.9 | 8.5 | 7.7 | 8.7 | 7.5 | 8.7 | 7.2 | 8.7 | 7.9 | 6.9 |
| Precipitation (mm) | 48 | 40 | 69 | 70 | 216 | 195 | 262 | 332 | 226 | 8 | 43 | 124 |
| Sunny days | 24 | 18 | 21 | 17 | 16 | 11 | 4 | 5 | 5 | 23 | 24 | 21 |
| Rainy days | 4 | 9 | 10 | 13 | 15 | 19 | 27 | 26 | 25 | 8 | 5 | 9 |
| Snow days | 3 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 |
The largest precipitation sum in Jangseong is at