Incheon Weather & Climate

South Korea

Incheon sees feels-like daytime highs peak around 35.4°C in August and nighttime lows bottom out near -7.6°C in January. July is the wettest month (~274 mm), while January is the driest (~13 mm). For sunshine, October leads with about 69% clear skies.

Best time to visit Incheon

Based on mild feels-like temperatures and low rain chances, the most comfortable months are May, September, and October — expect around 15.224.2°C with roughly 23% chance of rain on a given day in May.

Incheon climate by month

MonthLow / High °CRain %RainfallClear skiesWind
January-7.6° / -1.1°6%13 mm66%17.2 kph
February-4.8° / 2°8%21 mm63%16.9 kph
March1° / 8.8°14%38 mm57%16.1 kph
April7.8° / 16.2°21%61 mm54%15.2 kph
May15.2° / 24.2°23%86 mm55%13.7 kph
June21.8° / 30.3°30%133 mm52%12 kph
July27° / 34.1°50%274 mm48%13 kph
August27.2° / 35.4°47%245 mm52%13 kph
September19.8° / 29.3°28%139 mm60%13.1 kph
October10.8° / 20.3°18%59 mm69%14.5 kph
November2.3° / 10.3°16%37 mm67%16.3 kph
December-4.6° / 2.2°9%19 mm67%17.2 kph

Feels-like temperatures from long-term historical data; ☀ marks the most comfortable months (mild temperatures, low rain).

Want to catch Incheon at its best?

Save your perfect conditions and get an email when a forecast matches.

Set up a free alert