Weather Guide

Incheon, South Korea Average Monthly Weather

Weather score43Mixed annual avg

Best months: September, June, August

Across the year, average daytime temperatures are around 16°C, sunshine averages 6.6h per day, and rainfall totals about 1259mm. Sea temperatures average 13°C across the year.

Incheon, South Korea, South Korea travel weather guide
Photo by Daesun Kim on Unsplash

Annual weather

Annual averages

Temp

16°C

Rain

1259mm

Annual total

Sun

6.6h

Sea

13°C

Weather score

43

Mixed avg

Seasonal climate calendar

Trip feel

Cool

Average highs are around 11°C, so pack for cooler days.

Drier

Rainfall averages 49mm, which is relatively low for holiday planning.

Some sun

Sunshine averages 5.4h per day, enough for a balanced month.

Cool sea

Sea temperatures average 15°C, so the water can feel cool.

Map

Weather map

Compare Incheon, South Korea with nearby places by weather score, rain, sun, temperature, and swim conditions.

Temperature

View on map

November11°C average high

November is close to Incheon's yearly temperature average, giving a typical read on daytime heat.

Warmest monthsJune to September

This stretch sets the upper range for average daytime heat.

November49mm average rain

November sits on the drier side of Incheon's year, which helps with sightseeing and transfers.

Driest monthsJanuary to May and October to December

This is the drier part of the year, when outdoor plans usually need less weather flexibility.

November5.4 hours average sun

November is one of Incheon's cloudier months, so sunshine-led plans are less reliable.

Brightest monthsApril to June

This stretch has the strongest sunshine in the monthly averages.

Sea temperature

View on map

November15°C average sea

November is close to Incheon's yearly sea-temperature average, so swimming comfort is fairly typical.

Warmest seaJuly to October

Sea temperatures are usually near 21°C in this stretch, so swimming comfort is at its strongest.

Weather score

View on map

November30 weather score

November is one of the weakest weather-score months, when the overall mix is less favourable than the rest of the year.

Best weather monthsJune and August to September

These months have the strongest weather score in the monthly averages.

Hotels in Incheon, South Korea