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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

1/5
Monday
Sunny
0.6°C/-1.6°C
1/6
Tuesday
Sunny
3.9°C/-1.6°C
1/7
Wednesday
Sunny
2.3°C/-1.8°C
1/8
Thursday
Sunny
0.2°C/-2.8°C
1/9
Friday
Patchy rain nearby
5.3°C/0°C
1/10
Saturday
Patchy rain nearby
4.2°C/-1.4°C
1/11
Sunday
Overcast
-2.7°C/-6.3°C