Average annual temperature is 14.0 °C
Absolute maximum temperature: 33.5 °C
Absolute minimum temperature: -13.5 °C
Number of sunny days: 192 days
Number of rainy days: 169 days
Number of snow days: 4 days
Look at detailed online map of Jahyeon
* Weather data for Jahyeon 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 | 13.8 | 23.9 | 26.8 | 26.8 | 30.9 | 33.2 | 33.5 | 29.2 | 23.1 | 24.9 | 19.1 |
| Average daytime temperature (°C) | 6.2 | 9.9 | 16.6 | 18.3 | 21.7 | 26.3 | 28.6 | 30.2 | 26.5 | 20.8 | 14.1 | 8.5 |
| Average temperature (°C) | 0.5 | 3.9 | 10.1 | 13.1 | 17.1 | 21.6 | 25.0 | 26.5 | 22.6 | 14.9 | 8.3 | 3.3 |
| Average night temperature (°C) | -4.1 | -1.3 | 4.6 | 8.0 | 12.8 | 17.9 | 22.1 | 23.4 | 19.2 | 9.7 | 3.4 | -1.2 |
| Absolute minimum temperature (°C) | -13.5 | -5.8 | -3.9 | 1.2 | 6.1 | 13.9 | 18.4 | 20.7 | 15.2 | 4.5 | -4.7 | -9.1 |
| 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) | 7.9 | 7.6 | 8.8 | 7.9 | 7.8 | 8.6 | 7.0 | 9.4 | 7.4 | 8.8 | 8.0 | 7.0 |
| Precipitation (mm) | 71 | 40 | 68 | 99 | 285 | 217 | 303 | 294 | 249 | 7 | 29 | 89 |
| Sunny days | 26 | 18 | 21 | 16 | 14 | 12 | 2 | 7 | 7 | 25 | 23 | 21 |
| Rainy days | 4 | 10 | 10 | 14 | 17 | 18 | 29 | 24 | 23 | 6 | 7 | 7 |
| Snow days | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 3 |
The largest precipitation sum in Jahyeon is at