Busan Weather
Busan 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: Mar, Apr, May, Oct and Nov.
Busan current weather
Busan now (local time 19:15)
22°C
Mostly clear
- Feels like
- 23°
- Humidity
- 73%
- Wind
- 6 km/h
Next 7 days · what to wear
13° – 25°C
Rain likely on 1 of 7 days
👕 Short sleeves with a light long-sleeve or jacket for cool mornings and evenings.
Busan 14-day forecast
Today
10/4
☁️
24°
19°
💧53%
Mon
10/5
🌤️
24°
17°
💧0%
Tue
10/6
☀️
22°
14°
💧0%
Wed
10/7
☀️
23°
14°
💧2%
Thu
10/8
☀️
24°
13°
💧2%
Fri
10/9
🌤️
24°
14°
💧10%
Sat
10/10
🌤️
25°
17°
💧24%
Sun
10/11
☁️
25°
18°
💧16%
Mon
10/12
🌦️
24°
19°
💧10%
Tue
10/13
🌦️
24°
18°
💧14%
Wed
10/14
☁️
24°
19°
💧14%
Thu
10/15
⛅
25°
17°
💧8%
Fri
10/16
🌦️
25°
19°
💧6%
Sat
10/17
🌦️
24°
16°
💧14%
Best time to visit Busan
On temperature and rainfall, the most comfortable months in Busan are Mar, Apr, May, Oct and Nov. The hottest month is August (average high 29°C) and the coldest is January (average low -2°C).
Busan climate by month
| Month | Avg high | Avg low | Rain | Humidity | vs Hong Kong |
|---|---|---|---|---|---|
| Jan | 7°C | -2°C | 55 mm | 59% | -14°C |
| Feb | 10°C | 1°C | 63 mm | 62% | -13°C |
| MarBest | 14°C | 5°C | 99 mm | 69% | -11°C |
| AprBest | 18°C | 9°C | 107 mm | 70% | -10°C |
| MayBest | 21°C | 14°C | 127 mm | 75% | -9°C |
| Jun | 25°C | 19°C | 234 mm | 83% | -7°C |
| Jul | 27°C | 23°C | 309 mm | 89% | -4°C |
| Aug | 29°C | 24°C | 227 mm | 85% | -2°C |
| Sep | 26°C | 20°C | 230 mm | 81% | -5°C |
| OctBest | 21°C | 13°C | 79 mm | 72% | -9°C |
| NovBest | 16°C | 7°C | 57 mm | 67% | -11°C |
| Dec | 8°C | -1°C | 24 mm | 58% | -15°C |
Data: Open-Meteo historical weather, 2020–2024 averages (ERA5); Hong Kong comparison uses HKO 1991–2020 normals.
Busan weather month by month: what to wear
Busan in OctoberBest monthThis month
October in Busan is pleasantly warm: average highs of 21°C and lows of 13°C, around 79 mm of rain (mostly dry) and 72% humidity — about 9°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.
Busan in NovemberBest month
November in Busan is chilly: average highs of 16°C and lows of 7°C, around 57 mm of rain (mostly dry) and 67% humidity — about 11°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.
Busan in December
December in Busan is cold: average highs of 8°C and lows of -1°C, around 24 mm of rain (dry) and 58% humidity — about 15°C colder than Hong Kong.
👕 A warm coat over a sweater, plus a scarf.
Busan in January
January in Busan is cold: average highs of 7°C and lows of -2°C, around 55 mm of rain (mostly dry) and 59% humidity — about 14°C colder than Hong Kong.
👕 A warm coat over a sweater, plus a scarf; big day–night swing, so dress in layers.
Busan in February
February in Busan is cold: average highs of 10°C and lows of 1°C, around 63 mm of rain (mostly dry) and 62% humidity — about 13°C colder than Hong Kong.
👕 A warm coat over a sweater, plus a scarf; big day–night swing, so dress in layers.
Busan in MarchBest month
March in Busan is chilly: average highs of 14°C and lows of 5°C, around 99 mm of rain (some rain) and 69% humidity — about 11°C colder than Hong Kong. It's one of the most comfortable months of the year to visit.
👕 A sweater plus a coat or windbreaker.
Busan in AprilBest month
April in Busan is mild and cool: average highs of 18°C and lows of 9°C, around 107 mm of rain (some rain) and 70% humidity — about 10°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.
Busan in MayBest month
May in Busan is pleasantly warm: average highs of 21°C and lows of 14°C, around 127 mm of rain (some rain) and 75% humidity — about 9°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.
Busan in June
June in Busan is pleasantly warm: average highs of 25°C and lows of 19°C, around 234 mm of rain (wet) and 83% humidity — about 7°C colder than Hong Kong.
👕 Short sleeves with a light long-sleeve or jacket for cool mornings and evenings; it's wet, so pack a compact umbrella.
Busan in July
July in Busan is warm to hot: average highs of 27°C and lows of 23°C, around 309 mm of rain (very wet) and 89% 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.
Busan in August
August in Busan is warm to hot: average highs of 29°C and lows of 24°C, around 227 mm of rain (wet) and 85% humidity — about 2°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.
Busan in September
September in Busan is pleasantly warm: average highs of 26°C and lows of 20°C, around 230 mm of rain (wet) and 81% 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.
FAQ
›What is the best time to visit Busan?
On temperature and rainfall, the most comfortable months in Busan are Mar, Apr, May, Oct and Nov. The hottest month is August (average high 29°C) and the coldest is January (average low -2°C).
›What's the weather like in Busan in October, and what should I wear?
October in Busan is pleasantly warm: average highs of 21°C and lows of 13°C, around 79 mm of rain (mostly dry) and 72% humidity — about 9°C colder than Hong Kong. It's one of the most comfortable months of the year to visit. What to wear: Short sleeves with a light long-sleeve or jacket for cool mornings and evenings.
›What's the weather like in Busan in November, and what should I wear?
November in Busan is chilly: average highs of 16°C and lows of 7°C, around 57 mm of rain (mostly dry) and 67% humidity — about 11°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; big day–night swing, so dress in layers.
›When is the rainy season in Busan?
Busan is wettest in July, with about 309 mm on average, and driest in December, with about 24 mm.
›How cold does Busan get? Does it snow?
The coldest month is January, averaging 7°C by day and -2°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.