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Seongdong-gu

Travel guide

Best time to visit Seongdong-gu

Data source:Meteostat
Last updated:2025-09

Weather in Seongdong-gu throughout the year

  • Spring (March–May): 5.7–17°C on average, the climate gradually changes from cold to warm, with increasing rainfall. March is still chilly, temperatures begin to rise in April, and May is quite warm and comfortable. Common activities: Going for a walk in the countryside, viewing flowers, outdoor excursions. Recommended clothing: Spring and autumn jackets, long-sleeved shirts, comfortable shoes.
  • Summer (June–August): 21.9–26.3°C on average, hot and humid, abundant rainfall, July is the most humid month. Common activities: Swimming, water activities, night market snacks. Recommended clothing: Light and breathable clothing, short sleeves, shorts, sandals.
  • Autumn (September–November): 14.3–22.6°C on average, pleasant climate, gradually turning from warm to cool, decreasing rainfall. September is still hot, October has comfortable temperatures, and November starts to get cooler. Common activities: Viewing maple leaves, outdoor activities, cultural experiences. Recommended clothing: Light jackets, long-sleeved shirts, comfortable shoes.
  • Winter (December–February): -3.0–5.7°C on average, cold and dry, low rainfall. January is the coldest month, with a higher probability of snowfall. Common activities: Indoor activities, appreciating winter scenery, hot springs. Recommended clothing: Heavy coats, sweaters, warm clothing, scarves, hats, gloves.

Weather in Seongdong-gu

Annual average temperature: approx. 12.4°C / Annual rainfall: approx. 1335 mm / Summer humidity: 70%–80% / Rainiest month: July

Seongdong-gu weather by month

Month
Temperature (°C)
Rainfall (mm)
January
-3°C
15.7
February
-0.3°C
18.2
March
5.7°C
40.2
April
12.5°C
51.8
May
17°C
94.8
June
21.9°C
182.6
July
25.3°C
303.8
August
26.3°C
247
September
22.6°C
176.6
October
14.3°C
102.5
November
7.6°C
71.1
December
-1.3°C
31

7-day weather forecast for Seongdong-gu

11/13
Friday
Smoky haze
15.4°C/8.1°C
11/14
Saturday
Light drizzle
12.8°C/10.6°C
11/15
Sunday
Sunny
16°C/7.7°C
11/16
Monday
Overcast
15.5°C/7.5°C
11/17
Tuesday
Overcast
14.3°C/9.4°C
11/18
Wednesday
Patchy rain nearby
10.9°C/2.2°C
11/19
Thursday
Sunny
6.7°C/0.7°C