Busan, South Korea · Records from 2006 to 2025. Not a forecast.
Mean high25°Hottest day 32.1° (2024)
Mean low19°Coldest night 11.3° (2015)
Rain days9 days6-14 by year
Rainfall168mmDaylight 14.4 → 14.5 h
Busan's 12 months iBest: May, June and October
123456789101112
Trip typesBeach Poorcool seaSightseeing on foot Goodmild
Humidity76%7 muggy days
Clear days3 days14 overcast days
Mean wind11 km/hRarely windy
Sea temperature20.7°19.7-21.3° by year (last 6)
Sunrise / sunset (15th)05:09 / 19:39Daylight 14.4 → 14.5 h
Busan in June
Humidity jumps and the rainy season on the south coast usually begins in the last third of June. In recent years Haeundae and Songjeong beaches opened first, in late June. Along the east coast toward Gijang, upwelling of cold water can suddenly chill the sea for days at a time, so test the water before you swim.
Daytime highs averaged 25°C, with nights at 19°C. Comfortably warm without being punishing. Out of 30 days, about 9 brought rain; the rest stayed dry. The driest year, 2009, had 6 rain days; the wettest, 2023, had 14.
Long days, up to 14.5 hours of light, left room for a late stroll after dinner. Each rainy day brought about 20 mm, closer to downpours than drizzle.
How long it rained
On a rainy day it rained for about 6.2 hours. Rain came at any time of day.
036912151821
Typhoonsi No tropical storm passed within 300 km in this month over the last 20 years. Typhoons: July to October
Over the past 20 years June averaged 9 rain days (1 mm or more) out of 30. Individual years ran from 6 in the driest to 14 in the wettest.
What should I wear in Busan in June?
Days averaged 25°C and nights 19°C. Pack a compact umbrella, T-shirts, a light layer for the evenings, and sunscreen plus a hat.
Can you swim in Busan in June?
Sea surface temperature averaged 20.7°C in June, more for a paddle than a swim. Year to year it ranged 19.7-21.3°C. Check local flags for waves and jellyfish on the day.
Is June a good time to visit Busan?
On warmth and rain days alone, Busan's easiest months were May, June and October. June ranked 2 of 12, close to the top.
Is Busan humid in June?
Mean relative humidity was 76%, with about 7 muggy days (dew point of 20°C or more) in the month.