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Seongdong-gu

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Seongdong-gu Weather and climate

Data source:Meteostat
Update date:2025-09

Seongdong-gu year round climate
  • 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.
Seongdong-gu climatological average

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

Seongdong-gu monthly average temperature and precipitation
Month
Air temperature (°C)
Precipitation (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
Seongdong-gu weather for the next seven days
11/6
Thursday
Partly Cloudy
17.5°C/9.5°C
11/7
Friday
Partly Cloudy
18.7°C/12.1°C
11/8
Saturday
Patchy rain nearby
18.1°C/11.5°C
11/9
Sunday
Patchy rain nearby
16.8°C/12.3°C
11/10
Monday
Sunny
13.1°C/8.3°C
11/11
Tuesday
Cloudy
13.8°C/8.1°C
11/12
Wednesday
Sunny
16.1°C/8.9°C