Weather in Incheon Today
Current temperature in Incheon: 19°C (66°F). Mainly Clear. Today's high 24°C (75°F), low 13°C (55°F).
Today's Daylight Forecast
Moon & Islamic Calendar
Air quality and UV are both favourable great conditions for a walk, run, or outdoor activity.
5-Day Weather Forecast
Full 15-Day ForecastAtmospheric Details
Today vs Normal
The long-term average high for today is 25°C.
23 of the last 28 days with published data ran above normal.
That's a break from the pattern - today's forecast runs below normal even though the recent stretch mostly ran above.
Red = above normal, blue = at or below · last 12 days
Air Quality
Air quality is acceptable for most people. Unusually sensitive individuals should consider reducing prolonged or heavy outdoor exertion.
Health & Activity Advice
UV index is 6 today — moderate. Sunscreen is worth using for extended time outside, but no special precautions are needed for short trips.
Air quality is acceptable for most people. Unusually sensitive individuals should consider reducing prolonged or heavy outdoor exertion.
Conditions are comfortable for outdoor activity at most points during the day today.
Nearby Regional Outlook
Incheon Weather Radar
Live precipitation · Cloud cover · Wind
Frequently Asked Questions
What is the hottest month in Incheon?
The hottest month in Incheon is typically August, with daytime highs averaging around 28.9°C (84°F), based on 10 years of historical weather data. Overnight lows during this period average near 23.1°C (74°F).
What is the coldest month in Incheon?
The coldest month in Incheon is typically January, with overnight lows averaging around -5.6°C (22°F) and daytime highs near 2°C (36°F), based on 10 years of historical weather data. Freezing overnight temperatures are common during this month, so plan for icy conditions in the early morning.
When does the rainy season start in Incheon?
Incheon has a clearly defined rainy season running roughly from July to September, based on 10 years of historical rainfall data. July is typically the wettest month, averaging about 283 mm of rain. Outside this window, rainfall is much lighter for the rest of the year.
What's the best time of year to visit Incheon?
The best time to visit Incheon is typically May to June, when daytime highs average a comfortable 22.8°C (73°F). Rainfall during this window averages around 113 mm, well below the 283 mm seen in July, the wettest month. This is based on 10 years of historical weather data.
Is Incheon's air quality safe right now?
As of the latest reading, Incheon's air quality index (AQI) is 42, rated "Good", based on the nearest monitoring station. Air quality is considered satisfactory, with little to no health risk.