Busan, South Korea · Records from 2006 to 2025. Not a forecast.
Mean high18°Hottest day 27° (2014)
Mean low10°Coldest night 2.3° (2007)
Rain days8 days4-15 by year
Rainfall133mmDaylight 12.6 → 13.6 h
Busan's 12 months iBest: May, June and October
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Trip typesBeach Poorcool seaSightseeing on foot Goodmild
Humidity60%0 muggy days
Clear days8 days9 overcast days
Mean wind13 km/hRarely windy
Sea temperature15.5°13.5-16.3° by year (last 6)
Sunrise / sunset (15th)05:52 / 18:56Daylight 12.6 → 13.6 h
Busan in April
Cherry blossoms often last into early April. Dalmaji-gil pairs the blossoms with sea views, while Oncheoncheon stream and the Nakdong River embankment at Samnak Ecological Park form long blossom tunnels. The canola fields at Daejeo Ecological Park turn yellow in April. Rain comes more often than you might think, so carry a folding umbrella.
Highs averaged 18°C and lows 10°C, an easy range for walking around all day. 8 rain days in a typical April: noticeable, but most days stayed dry. Most years sat near the average of 8, though 2022 dipped to 4 and 2015 climbed to 15.
Cold snaps happened: the record low for April was 2.3°C, set in 2007. Each rainy day brought about 18 mm, closer to downpours than drizzle.
How long it rained
On a rainy day it rained for about 6.5 hours. Rain came at any time of day.
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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 April averaged 8 rain days (1 mm or more) out of 30. Individual years ran from 4 in the driest to 15 in the wettest.
What should I wear in Busan in April?
Days averaged 18°C and nights 10°C. Pack a compact umbrella and a light layer for the evenings.
Can you swim in Busan in April?
Sea surface temperature averaged 15.5°C in April, too cold for most people without a wetsuit. Year to year it ranged 13.5-16.3°C. Check local flags for waves and jellyfish on the day.
Is April a good time to visit Busan?
On warmth and rain days alone, Busan's easiest months were May, June and October. April ranked 6 of 12.
How many clear days does Busan get in April?
About 8 clear days (under 30% cloud on average) and 9 overcast days (80% or more).