Average annual temperature is 13.4 °C
Absolute maximum temperature: 34.2 °C
Absolute minimum temperature: -15.2 °C
Number of sunny days: 160 days
Number of rainy days: 190 days
Number of snow days: 15 days
Look at detailed online map of Siamnae
* Weather data for Siamnae 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) | 14.6 | 12.3 | 22.7 | 24.4 | 30.6 | 32.9 | 32.4 | 34.2 | 30.6 | 22.3 | 24.1 | 17.3 |
| Average daytime temperature (°C) | 3.7 | 7.0 | 15.5 | 18.0 | 22.7 | 27.1 | 28.5 | 29.9 | 26.4 | 19.5 | 11.5 | 6.1 |
| Average temperature (°C) | -0.6 | 1.8 | 8.8 | 12.5 | 17.7 | 21.8 | 25.0 | 25.8 | 22.3 | 14.7 | 7.3 | 2.8 |
| Average night temperature (°C) | -4.5 | -1.9 | 4.0 | 7.9 | 13.6 | 18.0 | 22.5 | 22.7 | 19.2 | 10.5 | 3.3 | -0.4 |
| Absolute minimum temperature (°C) | -15.2 | -6.8 | -3.2 | 1.6 | 5.1 | 14.7 | 19.6 | 17.7 | 13.7 | 6.0 | -6.2 | -11.6 |
| 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) | 10.1 | 10.9 | 12.0 | 13.1 | 14.0 | 14.5 | 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 | 7.2 | 8.8 | 7.6 | 8.0 | 9.3 | 6.8 | 9.6 | 7.7 | 8.7 | 7.0 | 5.6 |
| Precipitation (mm) | 39 | 13 | 42 | 87 | 176 | 171 | 553 | 377 | 196 | 14 | 95 | 128 |
| Sunny days | 17 | 21 | 23 | 13 | 12 | 10 | 2 | 4 | 8 | 22 | 15 | 13 |
| Rainy days | 8 | 6 | 8 | 17 | 19 | 20 | 29 | 27 | 22 | 9 | 14 | 11 |
| Snow days | 6 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 7 |
The largest precipitation sum in Siamnae is at