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Namhansanseong Fortress

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Namhansanseong Fortress Weather, Climate and Best Time to Visit

Data source:Meteostat
Update date:2025-09

Namhansanseong Fortress year round climate

  • Spring (March–May): Average 7.5–18.2°C, mild climate, but still chilly in early spring, rainfall gradually increases. Common activities: Hiking, enjoying mountain scenery. Recommended clothing: Spring jacket, long-sleeved shirt, comfortable shoes.
  • Summer (June–August): Average 23.2–27.4°C, hot and humid, abundant rainfall, especially in July. Common activities: Avoiding the heat, exploring the mountain city. Recommended clothing: Breathable and light clothing, sun hat, rain gear.
  • Autumn (September–November): Average 8.1–23.5°C, pleasant climate, cool and comfortable, less rainfall. Common activities: Hiking, appreciating autumn foliage. Recommended clothing: Light jacket, long-sleeved shirt, comfortable shoes.
  • Winter (December–February): Average -2.0–1.1°C, cold and dry, occasional snowfall. Common activities: Experiencing the tranquil winter scenery of the mountain city, suitable for photography. Recommended clothing: Warm jacket, hat, gloves, scarf.

Namhansanseong Fortress climatological average

Annual average temperature: approx. 13.4°C / Annual rainfall: approx. 1367 mm / Summer humidity: 70%–80% / Rainiest month: July

Namhansanseong Fortress monthly average temperature and precipitation

Month
Air temperature (°C)
Precipitation (mm)
January
-2°C
15.8
February
1.1°C
19.4
March
7.5°C
37.3
April
14°C
56.4
May
18.2°C
93.8
June
23.2°C
204.8
July
26.6°C
326
August
27.4°C
264.3
September
23.5°C
169.8
October
14.7°C
86.6
November
8.1°C
63.3
December
-0.9°C
30.2

Namhansanseong Fortress weather for the next seven days

3/17
Tuesday
Sunny
13.4°C/3.3°C
3/18
Wednesday
Patchy rain nearby
10.7°C/5.4°C
3/19
Thursday
Sunny
8.8°C/2.4°C
3/20
Friday
Sunny
11.6°C/2.1°C
3/21
Saturday
Sunny
15.5°C/2.5°C
3/22
Sunday
Partly Cloudy
15°C/5.3°C
3/23
Monday
Sunny
15.1°C/6.9°C