Mild
Average highs are around 22°C, so days are mild rather than hot.
Weather Guide
Busan, South Korea Average Monthly Weather
Weather score44Mixed annual avg
Best months: September, August, October
Across the year, average daytime temperatures are around 19°C, sunshine averages 6.3h per day, and rainfall totals about 1508mm. Sea temperatures average 19°C across the year.
Annual weather
Annual averages
Temp
19°C
Rain
1508mm
Annual total
Sun
6.3h
Sea
19°C
Weather score
44
Mixed avg
Seasonal climate calendar
Trip feel
Drier
Rainfall averages 72mm, which is relatively low for holiday planning.
Some sun
Sunshine averages 6.3h per day, enough for a balanced month.
Swimmable
Sea temperatures average 22°C, which can work for swimming but may feel fresh.
Map
Weather map
Compare Busan, South Korea with nearby places by weather score, rain, sun, temperature, and swim conditions.
Temperature
October22°C average high
October is close to Busan's yearly temperature average, giving a typical read on daytime heat.
Warmest monthsJune to September
This stretch sets the upper range for average daytime heat.
Rain
October72mm average rain
October sits on the drier side of Busan's year, which helps with sightseeing and transfers.
Driest monthsJanuary to March and October to December
This is the drier part of the year, when outdoor plans usually need less weather flexibility.
Sun
October6.3 hours average sun
October sits close to Busan's yearly sunshine average, so it is a middle-of-the-pack month for bright days.
Brightest monthsApril to May and August
This stretch has the strongest sunshine in the monthly averages.
Sea temperature
October22°C average sea
October is close to Busan's yearly sea-temperature average, so swimming comfort is fairly typical.
Warmest seaJuly to September
Sea temperatures are usually near 23°C in this stretch, so swimming comfort is at its strongest.
Weather score
October57 weather score
October scores above Busan's yearly average, so the overall weather mix is stronger than most months.
Best weather monthsJuly to October
These months have the strongest weather score in the monthly averages.
