Average annual temperature is 12.7 °C
Absolute maximum temperature: 33.4 °C
Absolute minimum temperature: -17.2 °C
Number of sunny days: 189 days
Number of rainy days: 165 days
Number of snow days: 11 days
Look at detailed online map of Tolchŏk-kol
* Weather data for Tolchŏk-kol 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) | 12.2 | 12.0 | 22.3 | 24.7 | 30.8 | 32.3 | 32.5 | 33.4 | 29.2 | 21.3 | 23.9 | 17.3 |
| Average daytime temperature (°C) | 2.5 | 6.6 | 15.3 | 18.0 | 23.1 | 27.3 | 28.8 | 29.6 | 25.5 | 18.6 | 10.4 | 4.4 |
| Average temperature (°C) | -1.9 | 1.2 | 8.7 | 12.0 | 17.6 | 21.9 | 24.6 | 25.3 | 21.4 | 13.8 | 5.9 | 0.7 |
| Average night temperature (°C) | -5.7 | -2.7 | 3.1 | 6.9 | 12.6 | 17.6 | 21.5 | 22.0 | 18.2 | 9.8 | 1.5 | -2.8 |
| Absolute minimum temperature (°C) | -17.2 | -7.5 | -4.4 | 0.0 | 4.5 | 14.4 | 17.1 | 17.2 | 13.0 | 3.8 | -8.6 | -14.0 |
| 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) | 7.4 | 7.7 | 9.1 | 8.1 | 8.3 | 9.9 | 7.4 | 9.4 | 7.4 | 9.0 | 7.7 | 6.2 |
| Precipitation (mm) | 34 | 11 | 48 | 55 | 153 | 224 | 482 | 303 | 280 | 12 | 54 | 120 |
| Sunny days | 21 | 20 | 22 | 13 | 18 | 11 | 3 | 7 | 11 | 24 | 19 | 20 |
| Rainy days | 5 | 5 | 9 | 17 | 13 | 19 | 28 | 24 | 19 | 7 | 11 | 8 |
| Snow days | 5 | 3 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 3 |
The largest precipitation sum in Tolchŏk-kol is at