Busan Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Busan.
Climate overview of Busan
Busan is also known as the summer capital of South Korea, mainly because of the many tourists that the city attracts during this period. These tourists come mainly to enjoy the beautiful beaches.
Busan Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Busan - and find the best time to visit.
Monthly Temperature in Busan
Visitors to Busan can expect significant temperature changes throughout the year. Average daytime temperatures reach a comfortable 29°C (84°F) in August. In January, the coolest month of the year, temperatures drop to a chilly 9°C (48°F).
At night, temperatures range from around 24°C (75°F) in August to 1°C (34°F) in January.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Busan
Busan is known for its substantial rain/snowfall, with annual precipitation reaching 1367 mm (54 in). Busan can be quite wet during July, receiving approximately 233 mm (9.2 in) of precipitation over 14 rainy days.
In contrast, during the driest month (December), you will experience much drier conditions, with 32 mm (1.3 in) of precipitation spread across 5 rainy days. For more details, please visit our Busan Precipitation page.
The mean monthly precipitation over the year, including rain, hail, and snow
The average number of days each month with precipitation
Sunshine Hours in Busan
Busan experiences moderate variation in sunshine hours across the seasons. With 7.6 hours daily sunshine in May, it dips to 5.7 hours in September, offering a balanced mix of sunny and overcast days.
Visit our detailed sunshine hours page for more information.
Monthly hours of sunshine
Daily hours of sunshine
Daily percentage of sunshine
Humidity in Busan by Month
The relative humidity is high throughout the year in Busan.
The city experiences its highest humidity in July, reaching 84%. In January, the humidity drops to its lowest level at 46%. What does this mean? Read our detailed page on humidity levels for further details.
Relative humidity over the year
Best Time to Visit Busan
Monthly ratings reflect general weather comfort, based on daytime temperature and rainfall. Swimming and winter conditions are highlighted separately where relevant.
- Best overall: October
- Warmest weather: August
- Most sunshine: May
- Fewest rainy days: January, October, November and December
- Wettest months: April, May, June, July, August and September, when rainfall is highest.
- Seasonal pattern: Distinct dry (December to January) and wet (June to September) seasons, with warm summers and cold winters
Frequently asked questions about the climate in Busan
What is the best time to visit Busan?
October typically offers the most optimal weather in Busan. In contrast, January and February tend to have less optimal conditions. Busan has distinct dry (December to January) and wet (June to September) seasons, with warm summers and cold winters.
What temperatures can I expect in Busan?
Daytime highs range from 9°C (48°F) in January to 29°C (84°F) in August. Nighttime lows range from 1°C (34°F) to 24°C (75°F). Temperatures vary considerably through the year.
How much rain does Busan get?
Annual rainfall is around 1367 mm (54 in). July is the wettest month with 233 mm (9.2 in), while December is the driest with 32 mm (1.3 in).
How sunny is Busan?
Busan receives around 2,361 hours of sunshine per year. May is the sunniest month with 227 hours, while September is the cloudiest with just 172 hours. Overall, Busan enjoys abundant sunshine.
Busan 3-Day Forecast
Busan on the map
Busan is highlighted - select any city to see its climate.
Popular this month
Where to go in August - average daytime high across popular destinations.
Bucket list
Need travel inspiration? Check out our bucket list articles and be inspired.