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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

12/16
Tuesday
Overcast
8.3°C/3°C
12/17
Wednesday
Sunny
7°C/2.5°C
12/18
Thursday
Sunny
7.1°C/1.3°C
12/19
Friday
Sunny
9°C/1.5°C
12/20
Saturday
Sunny
10.9°C/3.4°C
12/21
Sunday
Patchy rain nearby
7.9°C/5.7°C
12/22
Monday
Light freezing rain
-1°C/-2.2°C

Namhansanseong Fortress Frequently Asked Questions and Useful Information for Travel

How do I get to Namhansanseong Fortress from Seoul?

To get to Namhansanseong Fortress from Seoul, take subway Line 8 to Sanseong Station. From Exit 2, you can take a taxi or bus 9 directly to the fortress's south gate. The journey typically takes about one hour from central Seoul.

What is Namhansanseong Fortress known for?

Namhansanseong Fortress is a large-scale mountain fortress constructed by the Joseon Dynasty in the 17th century as a defense against the Manchu Qing dynasty. It was systematically managed and operated for over 300 years, making it a significant historical site.

Is Namhansanseong Fortress worth visiting?

Namhansanseong Fortress is highly recommended for visitors interested in nature, history, and culture. Its status as a UNESCO World Heritage site underscores its importance and unique appeal, offering a perfect combination of historical exploration and scenic beauty.

Is the Korean movie The Fortress based on a true story?

Yes, the Korean movie 'The Fortress' is based on real events from the early 17th century concerning the efforts of the last king of independent Joseon to defend his kingdom against the encroaching Qing forces.

What are the main attractions within Namhansanseong Fortress?

Within Namhansanseong Fortress, you can explore various historical structures including numerous gates, palaces, and defensive walls that showcase the architectural and military prowess of the Joseon Dynasty. The scenic mountain trails also offer beautiful views and opportunities for hiking.