Average annual temperature is 13.8 °C
Absolute maximum temperature: 35.3 °C
Absolute minimum temperature: -15.2 °C
Number of sunny days: 190 days
Number of rainy days: 168 days
Number of snow days: 7 days
Look at detailed online map of Tongmyŏng
* Weather data for Tongmyŏng 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) | 15.4 | 15.4 | 23.5 | 26.7 | 33.3 | 34.2 | 34.1 | 35.3 | 30.1 | 22.2 | 24.6 | 17.1 |
| Average daytime temperature (°C) | 4.2 | 8.3 | 17.2 | 19.0 | 23.5 | 28.9 | 29.3 | 30.5 | 26.3 | 19.9 | 12.1 | 6.2 |
| Average temperature (°C) | -0.3 | 2.9 | 10.5 | 13.1 | 18.2 | 23.1 | 25.3 | 26.3 | 22.3 | 14.6 | 7.2 | 2.0 |
| Average night temperature (°C) | -4.1 | -1.3 | 4.9 | 8.1 | 13.8 | 18.7 | 22.4 | 23.1 | 18.8 | 10.1 | 2.7 | -1.5 |
| Absolute minimum temperature (°C) | -15.2 | -6.1 | -2.6 | 1.7 | 5.8 | 15.6 | 17.9 | 20.9 | 14.2 | 5.2 | -6.8 | -12.4 |
| 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 | 14.3 | 13.5 | 12.4 | 11.3 | 10.3 | 9.8 |
| Daylight minimum duration (h) | 9.0 | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 | 13.0 | 12.0 | 11.0 | 10.0 | 9.0 | 9.0 |
| Sunshine mean duration (h) | 7.6 | 7.4 | 9.0 | 8.3 | 8.4 | 9.9 | 7.2 | 9.5 | 7.5 | 8.9 | 7.8 | 6.5 |
| Precipitation (mm) | 35 | 15 | 40 | 48 | 129 | 169 | 363 | 283 | 220 | 10 | 53 | 84 |
| Sunny days | 22 | 19 | 22 | 15 | 18 | 12 | 5 | 8 | 6 | 22 | 20 | 21 |
| Rainy days | 6 | 8 | 9 | 15 | 13 | 18 | 26 | 23 | 24 | 9 | 10 | 7 |
| Snow days | 3 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 3 |
The largest precipitation sum in Tongmyŏng is at