Busan, South Korea Weather
Busan hourly forecast: next 24 hours
Today's high of 83°F (28°C) is right in line with the typical August high of 84°F (29°C).
Current conditions in detail
Busan weather tomorrow (Friday, August 28)
Tomorrow in Busan looks light rain shower, with a high of 82° and an overnight low of 80°. There is a 88% chance of rain - plan accordingly. Winds top out near 12 mph, and the UV index reaches 9 (very high).
Busan 14-day forecast
About the weather in Busan
A 24°C spread between its warmest and coolest months puts Busan among the more strongly seasonal places we cover. August averages 84°F (29°C) by day; January averages 44°F (7°C), with nights at 29°F (-2°C).
Busan weather: quick facts
- Hottest month: August - highs near 84°F (29°C)
- Coldest month: January - highs near 44°F (7°C)
- Decade extremes (2015-2024): 94°F (34°C) high · 9°F (-13°C) low
- Wettest month: July (15 rainy days) · Sunniest: August (10.1 h sun/day)
- Climate type: humid subtropical
- Annual swing: 24°C between the average warmest and coolest month · day to night: 7°C
- Months with freezing average lows: 2
- Average humidity: 72%
Temperatures through the year
At its warmest, in August, Busan runs to 84°F (29°C) in the afternoon and back to 75°F (24°C) by dawn. January sits at the other end of the year: 44°F (7°C) by day, 29°F (-2°C) at night. The gridded 2015-2024 daily record for this location tops out at 94°F (34°C) and bottoms at 9°F (-13°C) - decade extremes, not all-time station records. When it does rain it rains hard - about 15.4 mm on an average wet day, against roughly 6 mm for a typical temperate city.
Rain, sun and snow
The wettest month is July (10.6 inches (269 mm) across 15 days) and the driest December. Snowfall is rare but not unheard of. Days and nights are about 7°C apart on average - narrower than about 78% of the cities we track.
Season by season
Spring (March through May)
Through spring, Busan stays on the cool side of mild: 63°F (17°C) by day, 48°F (9°C) after dark, and expect showers on roughly 24 days across the season.
Summer (June through August)
Summer in Busan settles into easy warmth, with daytime highs averaging 80°F (27°C) and nights around 71°F (22°C); rain falls on around 40 of the 90 days.
Fall (September through November)
Fall is mild and warm here - highs near 69°F (20°C), nights near 56°F (13°C), and expect showers on roughly 23 days across the season.
Winter (December through February)
Through winter, Busan is brisk and cold: 46°F (8°C) by day, 31°F (-1°C) after dark, and rain comes on about 14 days over the three months.
Average temperatures in Busan by month
| Month | High | Low | Rain days | Precipitation | Sunshine | Humidity |
|---|---|---|---|---|---|---|
| January | 44° | 29° | 4 | 1.6 in | 7.7 h/day | 57% |
| February | 48° | 32° | 6 | 2.1 in | 8.5 h/day | 59% |
| March | 56° | 40° | 8 | 3.7 in | 8.7 h/day | 68% |
| April | 63° | 49° | 8 | 5.0 in | 8.9 h/day | 72% |
| May | 70° | 57° | 8 | 4.6 in | 9.8 h/day | 76% |
| June | 75° | 65° | 10 | 7.7 in | 9.0 h/day | 83% |
| July | 81° | 73° | 15 | 10.6 in | 8.6 h/day | 88% |
| August | 84° | 75° | 14 | 8.0 in | 10.1 h/day | 83% |
| September | 77° | 68° | 13 | 10.2 in | 7.8 h/day | 80% |
| October | 69° | 56° | 6 | 3.7 in | 8.3 h/day | 72% |
| November | 59° | 44° | 4 | 2.1 in | 8.0 h/day | 67% |
| December | 47° | 32° | 4 | 1.4 in | 7.8 h/day | 59% |