Average annual temperature is 12.3 °C
Absolute maximum temperature: 33.8 °C
Absolute minimum temperature: -19.6 °C
Number of sunny days: 177 days
Number of rainy days: 170 days
Number of snow days: 18 days
Look at detailed online map of Tumyŏngan
* Weather data for Tumyŏngan 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) | 12.1 | 10.8 | 22.7 | 25.5 | 30.2 | 33.6 | 33.8 | 33.3 | 30.6 | 21.6 | 23.0 | 15.3 |
| Average daytime temperature (°C) | 1.3 | 6.2 | 14.4 | 17.5 | 23.3 | 26.6 | 29.2 | 29.6 | 26.0 | 18.3 | 9.2 | 3.5 |
| Average temperature (°C) | -3.2 | 0.7 | 8.0 | 11.8 | 17.7 | 21.7 | 25.2 | 25.4 | 21.5 | 13.4 | 4.5 | -0.4 |
| Average night temperature (°C) | -7.4 | -2.9 | 2.6 | 7.0 | 12.8 | 17.3 | 22.1 | 21.9 | 18.0 | 9.3 | 0.6 | -3.6 |
| Absolute minimum temperature (°C) | -19.6 | -7.0 | -4.9 | 0.7 | 5.1 | 13.8 | 18.7 | 17.1 | 12.6 | 4.1 | -8.6 | -15.3 |
| 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 | 12.0 | 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) | 7.2 | 8.3 | 9.2 | 7.3 | 9.0 | 9.5 | 7.6 | 8.1 | 7.3 | 7.9 | 7.0 | 5.9 |
| Precipitation (mm) | 43 | 2 | 19 | 110 | 153 | 234 | 386 | 357 | 173 | 32 | 119 | 94 |
| Sunny days | 19 | 22 | 22 | 13 | 18 | 10 | 6 | 5 | 8 | 19 | 16 | 19 |
| Rainy days | 3 | 1 | 9 | 17 | 13 | 20 | 25 | 26 | 22 | 12 | 12 | 10 |
| Snow days | 9 | 5 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 2 |
The largest precipitation sum in Tumyŏngan is at