Our tour guide, Lena, was wonderful! She was so patient and her friendly smile was so comforting. She was very concerned when she learned my mother was injured, and she was happy to share what she knew. It's also worth mentioning that she tirelessly explained things in both Chinese and English! Thank you, Lena!
Anonymous User
Family
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
3/16
Monday
Partly Cloudy
11.6°C/2.4°C
3/17
Tuesday
Sunny
12.5°C/3.1°C
3/18
Wednesday
Overcast
12.7°C/6.3°C
3/19
Thursday
Partly Cloudy
12.4°C/4.3°C
3/20
Friday
Sunny
14.7°C/5.4°C
3/21
Saturday
Sunny
15.5°C/5.3°C
3/22
Sunday
Overcast
13.2°C/7.6°C
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