Average annual temperature is 11.9 °C
Absolute maximum temperature: 33.0 °C
Absolute minimum temperature: -18.0 °C
Number of sunny days: 184 days
Number of rainy days: 171 days
Number of snow days: 10 days
Look at detailed online map of Chattu
* Weather data for Chattu 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) | 12.9 | 11.4 | 20.9 | 24.4 | 30.0 | 30.5 | 32.5 | 33.0 | 27.2 | 19.8 | 22.2 | 15.3 |
| Average daytime temperature (°C) | 1.8 | 5.8 | 14.2 | 16.0 | 20.9 | 25.6 | 27.8 | 28.2 | 23.7 | 17.5 | 9.9 | 4.1 |
| Average temperature (°C) | -2.1 | 1.0 | 8.3 | 10.9 | 16.1 | 20.8 | 23.8 | 24.5 | 20.3 | 13.0 | 5.4 | 0.3 |
| Average night temperature (°C) | -5.8 | -2.6 | 3.2 | 6.5 | 11.9 | 16.9 | 20.9 | 21.5 | 17.4 | 9.1 | 0.8 | -2.9 |
| Absolute minimum temperature (°C) | -18.0 | -8.0 | -5.5 | -0.6 | 2.4 | 14.0 | 16.9 | 18.8 | 12.8 | 3.2 | -9.2 | -14.1 |
| 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) | 7.7 | 7.5 | 9.2 | 8.5 | 8.6 | 9.8 | 8.3 | 9.4 | 7.3 | 8.6 | 8.0 | 6.9 |
| Precipitation (mm) | 29 | 16 | 53 | 58 | 156 | 234 | 315 | 216 | 216 | 8 | 59 | 110 |
| Sunny days | 25 | 17 | 21 | 16 | 17 | 10 | 3 | 6 | 6 | 22 | 19 | 22 |
| Rainy days | 4 | 5 | 10 | 14 | 14 | 20 | 28 | 25 | 24 | 9 | 9 | 9 |
| Snow days | 2 | 6 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 0 |
The largest precipitation sum in Chattu is at