Incheon Weather
Incheon weather today, the 14-day forecast, and average temperature, rain and what to wear for every month — compared against Hong Kong. Best months to visit: Apr, May, Jun, Sep and Oct.
Incheon current weather
Incheon now (local time 17:00)
21°C
Partly cloudy
- Feels like
- 21°
- Humidity
- 65%
- Wind
- 14 km/h
Next 7 days · what to wear
12° – 25°C
Rain likely on 2 of 7 days
👕 Short sleeves with a light long-sleeve or jacket for cool mornings and evenings; big day–night swing, so dress in layers.
Incheon 14-day forecast
Today
10/4
☁️
23°
13°
💧85%
Mon
10/5
🌦️
19°
15°
💧84%
Tue
10/6
🌤️
20°
12°
💧0%
Wed
10/7
☀️
22°
12°
💧0%
Thu
10/8
☀️
23°
12°
💧0%
Fri
10/9
☁️
25°
13°
💧0%
Sat
10/10
⛅
24°
14°
💧2%
Sun
10/11
☀️
25°
15°
💧2%
Mon
10/12
⛅
24°
15°
💧10%
Tue
10/13
☁️
26°
16°
💧27%
Wed
10/14
🌧️
20°
19°
💧8%
Thu
10/15
🌦️
22°
18°
💧4%
Fri
10/16
☁️
21°
12°
💧8%
Sat
10/17
☁️
20°
10°
💧14%
Best time to visit Incheon
On temperature and rainfall, the most comfortable months in Incheon are Apr, May, Jun, Sep and Oct. The hottest month is August (average high 28°C) and the coldest is January (average low -7°C).
Incheon climate by month
| Month | Avg high | Avg low | Rain | Humidity | vs Hong Kong |
|---|---|---|---|---|---|
| Jan | 1°C | -7°C | 20 mm | 77% | -20°C |
| Feb | 3°C | -5°C | 31 mm | 74% | -18°C |
| Mar | 9°C | -1°C | 37 mm | 74% | -16°C |
| AprBest | 15°C | 5°C | 72 mm | 74% | -13°C |
| MayBest | 21°C | 11°C | 84 mm | 75% | -11°C |
| JunBest | 26°C | 17°C | 116 mm | 76% | -8°C |
| Jul | 28°C | 21°C | 361 mm | 84% | -5°C |
| Aug | 28°C | 22°C | 260 mm | 83% | -4°C |
| SepBest | 25°C | 17°C | 138 mm | 79% | -8°C |
| OctBest | 19°C | 10°C | 53 mm | 75% | -12°C |
| Nov | 11°C | 3°C | 47 mm | 75% | -16°C |
| Dec | 3°C | -4°C | 22 mm | 76% | -19°C |
Data: NASA POWER 2001–2020 climatology (MERRA-2, elevation-corrected); Hong Kong comparison uses HKO 1991–2020 normals.
Incheon weather month by month: what to wear
Incheon in OctoberBest monthThis month
October in Incheon is mild and cool: average highs of 19°C and lows of 10°C, around 53 mm of rain (mostly dry) and 75% humidity — about 12°C colder than Hong Kong. It's one of the most comfortable months of the year to visit.
👕 Long sleeves with a light jacket or sweater.
Incheon in November
November in Incheon is chilly: average highs of 11°C and lows of 3°C, around 47 mm of rain (mostly dry) and 75% humidity — about 16°C colder than Hong Kong.
👕 A sweater plus a coat or windbreaker.
Incheon in December
December in Incheon is freezing: average highs of 3°C and lows of -4°C, around 22 mm of rain (dry) and 76% humidity — about 19°C colder than Hong Kong.
👕 A down jacket, thermal base layers, scarf and gloves; snow is possible.
Incheon in January
January in Incheon is freezing: average highs of 1°C and lows of -7°C, around 20 mm of rain (dry) and 77% humidity — about 20°C colder than Hong Kong.
👕 A down jacket, thermal base layers, scarf and gloves; snow is possible.
Incheon in February
February in Incheon is cold: average highs of 3°C and lows of -5°C, around 31 mm of rain (mostly dry) and 74% humidity — about 18°C colder than Hong Kong.
👕 A down jacket, thermal base layers, scarf and gloves.
Incheon in March
March in Incheon is cold: average highs of 9°C and lows of -1°C, around 37 mm of rain (mostly dry) and 74% humidity — about 16°C colder than Hong Kong.
👕 A warm coat over a sweater, plus a scarf; big day–night swing, so dress in layers.
Incheon in AprilBest month
April in Incheon is chilly: average highs of 15°C and lows of 5°C, around 72 mm of rain (mostly dry) and 74% humidity — about 13°C colder than Hong Kong. It's one of the most comfortable months of the year to visit.
👕 Long sleeves with a light jacket or sweater; big day–night swing, so dress in layers.
Incheon in MayBest month
May in Incheon is pleasantly warm: average highs of 21°C and lows of 11°C, around 84 mm of rain (some rain) and 75% humidity — about 11°C colder than Hong Kong. It's one of the most comfortable months of the year to visit.
👕 Short sleeves with a light long-sleeve or jacket for cool mornings and evenings; big day–night swing, so dress in layers.
Incheon in JuneBest month
June in Incheon is pleasantly warm: average highs of 26°C and lows of 17°C, around 116 mm of rain (some rain) and 76% humidity — about 8°C colder than Hong Kong. It's one of the most comfortable months of the year to visit.
👕 Short sleeves, plus a light layer for air-conditioned interiors; big day–night swing, so dress in layers.
Incheon in July
July in Incheon is warm to hot: average highs of 28°C and lows of 21°C, around 361 mm of rain (very wet) and 84% humidity — about 5°C colder than Hong Kong.
👕 Short sleeves, plus a light layer for air-conditioned interiors; it's wet, so pack a compact umbrella; humid, so quick-dry fabrics help.
Incheon in August
August in Incheon is warm to hot: average highs of 28°C and lows of 22°C, around 260 mm of rain (very wet) and 83% humidity — about 4°C colder than Hong Kong.
👕 Short sleeves, plus a light layer for air-conditioned interiors; it's wet, so pack a compact umbrella; humid, so quick-dry fabrics help.
Incheon in SeptemberBest month
September in Incheon is pleasantly warm: average highs of 25°C and lows of 17°C, around 138 mm of rain (some rain) and 79% humidity — about 8°C colder than Hong Kong. It's one of the most comfortable months of the year to visit.
👕 Short sleeves with a light long-sleeve or jacket for cool mornings and evenings.
FAQ
›What is the best time to visit Incheon?
On temperature and rainfall, the most comfortable months in Incheon are Apr, May, Jun, Sep and Oct. The hottest month is August (average high 28°C) and the coldest is January (average low -7°C).
›What's the weather like in Incheon in October, and what should I wear?
October in Incheon is mild and cool: average highs of 19°C and lows of 10°C, around 53 mm of rain (mostly dry) and 75% humidity — about 12°C colder than Hong Kong. It's one of the most comfortable months of the year to visit. What to wear: Long sleeves with a light jacket or sweater.
›What's the weather like in Incheon in November, and what should I wear?
November in Incheon is chilly: average highs of 11°C and lows of 3°C, around 47 mm of rain (mostly dry) and 75% humidity — about 16°C colder than Hong Kong. What to wear: A sweater plus a coat or windbreaker.
›When is the rainy season in Incheon?
Incheon is wettest in July, with about 361 mm on average, and driest in January, with about 20 mm.
›How cold does Incheon get? Does it snow?
The coldest month is January, averaging 1°C by day and -7°C at night. Nights regularly drop below freezing and snow is possible.
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Forecast data: Open-Meteo.com (CC BY 4.0), refreshed every 3 hours. Hottest month: August; coldest: January.