Average annual temperature is 13.8 °C
Absolute maximum temperature: 31.9 °C
Absolute minimum temperature: -13.3 °C
Number of sunny days: 180 days
Number of rainy days: 174 days
Number of snow days: 11 days
Look at detailed online map of Tongmasan
* Weather data for Tongmasan 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) | 13.3 | 10.3 | 21.8 | 23.7 | 26.1 | 29.3 | 31.0 | 31.9 | 30.7 | 23.0 | 22.9 | 17.1 |
| Average daytime temperature (°C) | 4.0 | 6.0 | 12.5 | 16.9 | 21.2 | 24.4 | 27.5 | 29.2 | 26.1 | 19.5 | 12.3 | 7.0 |
| Average temperature (°C) | 0.3 | 1.9 | 7.9 | 12.7 | 17.4 | 21.5 | 25.2 | 26.4 | 22.9 | 15.7 | 8.8 | 3.8 |
| Average night temperature (°C) | -3.9 | -1.7 | 3.9 | 8.9 | 14.3 | 19.2 | 23.2 | 23.9 | 20.1 | 11.9 | 4.8 | 0.4 |
| Absolute minimum temperature (°C) | -13.3 | -5.2 | -2.7 | 3.5 | 7.1 | 16.0 | 20.5 | 19.0 | 15.6 | 7.3 | -3.1 | -10.3 |
| 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 | 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) | 7.1 | 7.8 | 9.1 | 8.0 | 8.5 | 10.0 | 7.3 | 9.4 | 7.4 | 8.3 | 6.6 | 5.1 |
| Precipitation (mm) | 34 | 5 | 23 | 71 | 201 | 226 | 620 | 231 | 238 | 17 | 99 | 125 |
| Sunny days | 18 | 23 | 22 | 17 | 12 | 15 | 2 | 10 | 13 | 22 | 13 | 13 |
| Rainy days | 8 | 5 | 9 | 13 | 19 | 15 | 29 | 21 | 17 | 9 | 16 | 13 |
| Snow days | 5 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 5 |
The best time to visit Tongmasan during the most sunny months:
The largest precipitation sum in Tongmasan is at