Average annual temperature is 13.8 °C
Absolute maximum temperature: 34.7 °C
Absolute minimum temperature: -15.4 °C
Number of sunny days: 192 days
Number of rainy days: 170 days
Number of snow days: 3 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) | 16.0 | 14.4 | 24.0 | 27.1 | 32.9 | 33.7 | 34.4 | 34.7 | 29.5 | 22.6 | 25.4 | 18.5 |
| Average daytime temperature (°C) | 4.8 | 8.4 | 15.8 | 18.0 | 22.3 | 26.7 | 29.1 | 29.2 | 25.0 | 20.0 | 12.7 | 6.8 |
| Average temperature (°C) | 0.3 | 3.3 | 10.1 | 13.1 | 17.8 | 22.3 | 25.4 | 25.8 | 21.8 | 14.9 | 7.9 | 2.6 |
| Average night temperature (°C) | -3.3 | -0.5 | 5.4 | 8.7 | 13.8 | 18.7 | 22.6 | 22.9 | 19.0 | 10.9 | 3.4 | -0.7 |
| Absolute minimum temperature (°C) | -15.4 | -5.5 | -3.2 | 2.3 | 7.3 | 14.4 | 18.1 | 20.3 | 13.3 | 5.7 | -6.9 | -11.8 |
| 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 | 13.0 | 12.0 | 11.0 | 10.0 | 9.0 |
| Daylight mean duration (h) | 10.0 | 10.9 | 12.0 | 13.1 | 14.1 | 14.6 | 14.3 | 13.5 | 12.4 | 11.3 | 10.3 | 9.7 |
| Daylight minimum duration (h) | 9.0 | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 | 14.0 | 12.0 | 11.0 | 10.0 | 9.0 | 9.0 |
| Sunshine mean duration (h) | 7.9 | 7.4 | 9.2 | 8.8 | 8.4 | 9.9 | 8.7 | 9.2 | 7.4 | 8.9 | 8.1 | 7.1 |
| Precipitation (mm) | 40 | 28 | 67 | 56 | 165 | 170 | 314 | 222 | 255 | 7 | 33 | 126 |
| Sunny days | 25 | 17 | 20 | 16 | 15 | 8 | 3 | 6 | 8 | 26 | 24 | 24 |
| Rainy days | 4 | 10 | 11 | 14 | 16 | 22 | 28 | 25 | 22 | 5 | 6 | 7 |
| Snow days | 2 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Jangseong is at