Average annual temperature is 14.4 °C
Absolute maximum temperature: 35.1 °C
Absolute minimum temperature: -10.7 °C
Number of sunny days: 195 days
Number of rainy days: 167 days
Number of snow days: 3 days
Look at detailed online map of Chŏngsu
* Weather data for Chŏngsu 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) | 17.8 | 15.2 | 24.0 | 26.6 | 29.0 | 32.9 | 33.0 | 35.1 | 30.6 | 23.8 | 26.7 | 19.0 |
| Average daytime temperature (°C) | 7.6 | 10.5 | 18.0 | 19.4 | 22.8 | 27.4 | 28.7 | 30.6 | 27.0 | 21.2 | 14.7 | 8.9 |
| Average temperature (°C) | 1.2 | 4.1 | 10.9 | 13.4 | 17.7 | 22.3 | 25.2 | 26.6 | 22.8 | 15.2 | 8.7 | 3.9 |
| Average night temperature (°C) | -3.4 | -0.9 | 5.2 | 7.9 | 13.4 | 18.1 | 22.4 | 23.3 | 19.4 | 10.5 | 3.7 | 0.0 |
| Absolute minimum temperature (°C) | -10.7 | -6.5 | -4.3 | 0.3 | 7.7 | 13.8 | 18.5 | 20.5 | 14.4 | 4.1 | -4.5 | -8.1 |
| 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) | 7.5 | 7.6 | 8.5 | 7.9 | 7.6 | 8.9 | 6.3 | 9.8 | 7.7 | 8.6 | 8.0 | 6.7 |
| Precipitation (mm) | 70 | 29 | 59 | 124 | 254 | 246 | 335 | 307 | 195 | 10 | 87 | 100 |
| Sunny days | 27 | 19 | 23 | 15 | 14 | 12 | 4 | 7 | 8 | 25 | 20 | 21 |
| Rainy days | 4 | 9 | 8 | 15 | 17 | 18 | 27 | 24 | 22 | 6 | 10 | 7 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 3 |
The largest precipitation sum in Chŏngsu is at