Temperature
Warm by day, warm at night.
82°Ftypical Aug high
Typical range
Incheon
South Korea · East Asia
Incheon is most comfortable in May and October. Summers are warm and winters are cold. The wettest months are roughly July to August.
Best time to go
12 mo · Typical year
Temperature range
21°F to 82°F
Rain
8 days/mo
Sunshine
8.7 h/day
Humidity feel
Sometimes humid
When to visit
Month-by-month fit
Precipitation
One of the wettest months.
45%wet-day frequency
AmountWet-day chance
Sunshine
Cloudier spells limit sunshine.
8.7 hAug sunshine
Heat & humidity by month
Hot afternoons occur, with humid air through much of the month.
58%Aug share of humid air hours
Easy airWarm airHumid airVery humid air
Hourly comfort pattern
In August, afternoons feel about 88° and nights feel near 81°.
FrigidFreezingVery coldColdCoolComfortableWarmHotNight shading
More detailIncludes sky, daypart comfort, sea, and wind
Cloud cover
Mostly cloudy skies.
36%Aug clear sky
ClearCloud cover
Sea temperature
77°Aug sea temp
Typical August day
August late afternoons are around 83°F, easing to about 79°F in early evening.
Avg temp Typical range
Morning78°F
Feels 83°F
Rain31%
Cloud66%
Humid airVery high
Sun intensityLow
Midday82°F
Feels 88°F
Rain30%
Cloud63%
Humid airVery high
Sun intensityStrong
Late afternoon83°F
Feels 88°F
Rain27%
Cloud60%
Humid airVery high
Sun intensityModerate
Early evening79°F
Feels 85°F
Rain21%
Cloud58%
Humid airVery high
Sun intensityMinimal
Best windowWind pattern
Calm winds are typical in August.
6 mphAug Light breeze
Typical wind speed (mph)
Similar
Similar things to doBarcelonaSpainSimilar things to doSeoulSouth KoreaSimilar things to doTianjinChinaSimilar things to doPortoPortugal
Want a side-by-side climate view? Compare Incheon with Barcelona.
Climate data notePlanning guidance, not a forecast
Typical monthly values are based on long-term climate records. Useful for planning, not a forecast. Check the weather before you travel.
Local microclimates can vary by beach, neighborhood, trail, or elevation.
Last updated: Jun 1, 2026
Data & methodology