Average annual temperature is 14.1 °C
Absolute maximum temperature: 36.0 °C
Absolute minimum temperature: -15.3 °C
Number of sunny days: 193 days
Number of rainy days: 163 days
Number of snow days: 9 days
Look at detailed online map of Ch’ilsŏng
* Weather data for Ch’ilsŏng 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) | 12.6 | 13.8 | 24.7 | 26.2 | 34.1 | 36.0 | 34.0 | 35.3 | 30.6 | 22.8 | 25.6 | 16.6 |
| Average daytime temperature (°C) | 4.2 | 8.5 | 17.5 | 19.7 | 25.1 | 29.6 | 30.1 | 31.1 | 26.9 | 20.2 | 12.1 | 6.0 |
| Average temperature (°C) | -0.6 | 2.6 | 10.3 | 13.3 | 19.2 | 23.9 | 26.0 | 26.9 | 22.8 | 14.9 | 7.0 | 1.7 |
| Average night temperature (°C) | -4.7 | -1.9 | 3.9 | 7.5 | 13.6 | 19.1 | 22.9 | 23.5 | 19.3 | 10.3 | 2.3 | -2.3 |
| Absolute minimum temperature (°C) | -15.3 | -5.8 | -3.2 | 1.6 | 4.4 | 16.0 | 19.0 | 19.1 | 14.3 | 4.6 | -6.6 | -12.1 |
| 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) | 10.0 | 10.9 | 12.0 | 13.1 | 14.1 | 14.6 | 14.4 | 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) | 7.5 | 7.7 | 9.0 | 8.3 | 8.4 | 9.8 | 7.4 | 9.4 | 7.6 | 8.8 | 7.9 | 6.5 |
| Precipitation (mm) | 30 | 10 | 44 | 47 | 151 | 234 | 442 | 307 | 246 | 9 | 47 | 87 |
| Sunny days | 22 | 20 | 22 | 16 | 19 | 10 | 5 | 5 | 11 | 23 | 20 | 20 |
| Rainy days | 5 | 6 | 9 | 14 | 12 | 20 | 26 | 26 | 19 | 8 | 10 | 8 |
| Snow days | 4 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 3 |
The largest precipitation sum in Ch’ilsŏng is at