Average annual temperature is 10.7 °C
Absolute maximum temperature: 32.5 °C
Absolute minimum temperature: -19.7 °C
Number of sunny days: 178 days
Number of rainy days: 171 days
Number of snow days: 16 days
Look at detailed online map of Koptolchae
* Weather data for Koptolchae 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) | 10.8 | 10.3 | 21.5 | 24.0 | 28.2 | 31.8 | 32.0 | 32.5 | 29.0 | 20.3 | 20.9 | 13.6 |
| Average daytime temperature (°C) | 0.3 | 5.0 | 12.9 | 15.9 | 21.5 | 25.3 | 28.0 | 28.4 | 24.5 | 16.7 | 7.9 | 2.2 |
| Average temperature (°C) | -4.2 | -0.5 | 6.1 | 10.0 | 15.8 | 20.1 | 23.7 | 24.0 | 20.0 | 11.4 | 3.3 | -1.7 |
| Average night temperature (°C) | -8.6 | -4.6 | -0.1 | 4.6 | 10.2 | 15.4 | 20.1 | 20.3 | 16.0 | 6.8 | -0.8 | -5.1 |
| Absolute minimum temperature (°C) | -19.7 | -8.1 | -6.8 | -2.1 | 0.9 | 10.5 | 15.3 | 14.7 | 8.4 | 1.7 | -10.0 | -16.9 |
| 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 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 |
| Daylight mean duration (h) | 9.9 | 10.8 | 12.0 | 13.2 | 14.2 | 14.7 | 14.5 | 13.6 | 12.4 | 11.2 | 10.2 | 9.6 |
| Daylight minimum duration (h) | 9.0 | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 | 9.0 |
| Sunshine mean duration (h) | 6.9 | 8.0 | 9.1 | 7.5 | 9.3 | 9.8 | 8.1 | 8.7 | 7.5 | 8.1 | 6.9 | 5.9 |
| Precipitation (mm) | 73 | 1 | 27 | 124 | 124 | 207 | 394 | 323 | 150 | 20 | 87 | 84 |
| Sunny days | 19 | 24 | 20 | 13 | 19 | 8 | 5 | 7 | 9 | 20 | 17 | 17 |
| Rainy days | 6 | 0 | 11 | 17 | 12 | 22 | 26 | 24 | 21 | 11 | 11 | 10 |
| Snow days | 6 | 4 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 4 |
The largest precipitation sum in Koptolchae is at