Average annual temperature is 14.7 °C
Absolute maximum temperature: 34.6 °C
Absolute minimum temperature: -12.8 °C
Number of sunny days: 193 days
Number of rainy days: 170 days
Number of snow days: 2 days
Look at detailed online map of Jeonsan
* Weather data for Jeonsan 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) | 15.8 | 14.7 | 24.0 | 27.0 | 26.1 | 30.5 | 33.8 | 34.6 | 30.1 | 23.9 | 25.0 | 19.8 |
| Average daytime temperature (°C) | 6.9 | 10.6 | 16.8 | 18.7 | 22.0 | 26.3 | 29.1 | 30.8 | 27.2 | 21.7 | 14.8 | 9.4 |
| Average temperature (°C) | 1.4 | 4.7 | 10.8 | 13.8 | 17.7 | 22.2 | 25.7 | 27.2 | 23.4 | 15.7 | 9.0 | 4.0 |
| Average night temperature (°C) | -3.3 | -0.5 | 5.4 | 9.1 | 13.8 | 18.8 | 23.0 | 24.2 | 20.1 | 10.5 | 4.0 | -0.6 |
| Absolute minimum temperature (°C) | -12.8 | -5.2 | -3.2 | 1.9 | 7.0 | 14.8 | 19.7 | 21.4 | 15.4 | 5.4 | -3.8 | -8.4 |
| 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 | 8.7 | 7.9 | 7.8 | 8.4 | 7.1 | 9.5 | 7.3 | 8.8 | 7.9 | 7.0 |
| Precipitation (mm) | 67 | 38 | 64 | 104 | 272 | 281 | 327 | 298 | 188 | 9 | 34 | 96 |
| Sunny days | 26 | 20 | 20 | 17 | 12 | 9 | 6 | 6 | 7 | 24 | 24 | 22 |
| Rainy days | 4 | 8 | 11 | 13 | 19 | 21 | 25 | 25 | 23 | 7 | 6 | 8 |
| Snow days | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 |
The largest precipitation sum in Jeonsan is at