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Incheon

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Incheon Weather, Climate and Best Time to Visit

Data source:Meteostat
Update date:2025-09

Incheon year round climate

  • Spring (March–May): Average 7–17°C, mild climate, but occasional rain. March and April offer pleasant weather. Common activities: picnics, flower viewing, sightseeing. Recommended clothing: light jacket, long-sleeved shirt, comfortable shoes.
  • Summer (June–August): Average 22–27°C, hot and humid, frequent rainfall, especially in August. Common activities: beach activities, indoor activities. Recommended clothing: light and breathable clothing, sun hat, sunscreen.
  • Autumn (September–November): Average 9–24°C, pleasant and comfortable, cool and dry, ideal for enjoying autumn scenery. Common activities: maple leaf viewing, outdoor excursions. Recommended clothing: light jacket, long-sleeved shirt, comfortable shoes.
  • Winter (December–February): Average -1.5–1.2°C, cold and dry, little snowfall. Common activities: indoor activities, museum visits. Recommended clothing: warm coat, scarf, hat, gloves.

Incheon climatological average

Annual average temperature: approx. 13°C / Annual rainfall: approx. 1337 mm / Summer humidity: 70%–80% / Rainiest month: August

Incheon monthly average temperature and precipitation

Month
Air temperature (°C)
Precipitation (mm)
January
-1.5°C
22.3
February
1.2°C
22.7
March
7°C
38
April
13.4°C
42
May
17.3°C
87.3
June
22.1°C
168
July
25.9°C
309.7
August
26.8°C
340.3
September
23.6°C
140
October
15.9°C
67
November
9°C
68.7
December
-0.2°C
31.7

Incheon weather for the next seven days

12/22
Monday
Sunny
2.6°C/-1.4°C
12/23
Tuesday
Moderate rain
6.7°C/2.2°C
12/24
Wednesday
Patchy rain nearby
4.9°C/1.2°C
12/25
Thursday
Sunny
0.3°C/-4.3°C
12/26
Friday
Sunny
-2.6°C/-5.5°C
12/27
Saturday
Overcast
-0.2°C/-3.6°C
12/28
Sunday
Partly Cloudy
3.2°C/0°C