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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 42–62°F, 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 71–79°F, 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 57–72°F, 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–-32.5°F, 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. 53.6°F / Annual rainfall: approx. 1323 mm / Summer humidity: 70%–80% / Rainiest month: July

COEX monthly average temperature and precipitation

Month
Air temperature (°F)
Precipitation (mm)
January
26.6°F
15.7
February
31.5°F
18.2
March
42.3°F
40.2
April
54.5°F
51.8
May
62.6°F
94.8
June
71.4°F
182.6
July
77.5°F
303.8
August
79.3°F
247
September
72.7°F
176.6
October
57°F
99.2
November
44.8°F
63
December
29.1°F
31

COEX weather for the next seven days

3/22
Sunday
Overcast
59.5°F/43°F
3/23
Monday
Sunny
62.6°F/41.9°F
3/24
Tuesday
Partly Cloudy
60.1°F/44.1°F
3/25
Wednesday
Sunny
62.4°F/47.1°F
3/26
Thursday
Sunny
66.2°F/46.2°F
3/27
Friday
Partly Cloudy
64.8°F/48.8°F
3/28
Saturday
Sunny
64.1°F/46.3°F