Average annual temperature is 13.7 °C
Absolute maximum temperature: 35.2 °C
Absolute minimum temperature: -15.4 °C
Number of sunny days: 179 days
Number of rainy days: 178 days
Number of snow days: 8 days
Look at detailed online map of Janghwa
* Weather data for Janghwa 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 | 13.4 | 24.2 | 26.6 | 31.8 | 34.5 | 33.8 | 35.2 | 30.1 | 23.2 | 25.2 | 18.4 |
| Average daytime temperature (°C) | 4.3 | 7.9 | 16.8 | 19.5 | 24.2 | 29.1 | 30.0 | 31.1 | 26.8 | 20.0 | 12.0 | 6.4 |
| Average temperature (°C) | -0.6 | 2.1 | 9.6 | 13.2 | 18.4 | 23.4 | 25.7 | 26.5 | 22.5 | 14.2 | 6.9 | 2.2 |
| Average night temperature (°C) | -4.7 | -2.1 | 3.5 | 7.5 | 13.1 | 18.3 | 22.4 | 22.7 | 18.7 | 9.2 | 2.1 | -1.5 |
| Absolute minimum temperature (°C) | -15.4 | -6.3 | -3.9 | 1.1 | 4.3 | 13.9 | 19.4 | 17.7 | 13.1 | 3.9 | -6.7 | -12.0 |
| 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 | 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) | 7.2 | 7.5 | 9.0 | 7.9 | 8.2 | 10.0 | 7.3 | 9.4 | 7.4 | 8.7 | 7.3 | 5.9 |
| Precipitation (mm) | 41 | 9 | 30 | 74 | 106 | 255 | 542 | 318 | 244 | 16 | 55 | 107 |
| Sunny days | 18 | 22 | 20 | 13 | 17 | 12 | 4 | 5 | 10 | 22 | 17 | 19 |
| Rainy days | 9 | 5 | 11 | 17 | 14 | 18 | 27 | 26 | 20 | 9 | 13 | 9 |
| Snow days | 4 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 3 |
The largest precipitation sum in Janghwa is at