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COEX Weather, Climate and Best Time to Visit

Data source:Meteostat
Update date:2025-09

COEX year round climate

  • Spring (March–May): Average 5.7–17.0°C, the climate gradually changes from cold to warm, and rainfall gradually increases. March is still chilly, April's temperature is comfortably pleasant, and May starts to become warmer. Common activities: Hiking, flower viewing. Recommended clothing: Spring jacket, comfortable trousers or skirt, and it is recommended to bring rain gear.
  • Summer (June–August): Average 21.9–26.3°C, hot and humid, with heavy rainfall, especially in July. Common activities: Indoor activities, visiting summer resorts. Recommended clothing: Light and breathable clothing, short sleeves, shorts, sun protection clothing, and rain gear.
  • Autumn (September–November): Average 13.9–22.6°C, the climate is comfortably pleasant, rainfall gradually decreases, and the temperature gradually decreases. Common activities: Hiking in the suburbs, viewing autumn scenery. Recommended clothing: Light jacket, long-sleeved shirts, comfortable trousers.
  • Winter (December–February): Average -3.0–-0.3°C, cold and dry, with little rainfall. Common activities: Indoor activities, ice and snow-related activities (if there are relevant facilities nearby). Recommended clothing: Heavy warm coat, sweater, scarf, hat, gloves, etc. for cold protection.

COEX climatological average

Annual average temperature: approx. 12°C / Annual rainfall: approx. 1323 mm / Summer humidity: 70%–80% / Rainiest month: July

COEX 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
13.9°C
99.2
November
7.1°C
63
December
-1.6°C
31

COEX weather for the next seven days

3/22
Sunday
Overcast
15.2°C/6°C
3/23
Monday
Sunny
17.5°C/5.3°C
3/24
Tuesday
Partly Cloudy
15.7°C/7.1°C
3/25
Wednesday
Sunny
16.9°C/8.8°C
3/26
Thursday
Sunny
18.5°C/8°C
3/27
Friday
Sunny
18.9°C/8.3°C
3/28
Saturday
Sunny
18.9°C/8.5°C