Your holiday weather, at a glance

South Korea in August: where is it warmest?

In August, Daejeon is the warmest place with 30 °C by day, Sokcho the coolest with 27 °C. 2 of 9 destinations have good holiday weather.

All destinations in August, warmest first

Long-term averages for the month: daytime high, sea, sunshine and rainy days.

PlaceScoreAirSeaSunRain days
Daejeon4930°–6 h15
Daegu4730°–5 h14
Gwangju4730°–6 h16
Gyeongju5629°–6 h15
Jeju5229°27°6 h17
Busan6428°27°6 h14
Seoul5828°–5 h14
Ulsan5828°26°6 h15
Sokcho7027°25°5 h15

South Korea in August: quick answers

South Korea in August: where is it warmest?

The warmest places in August are Daejeon (30 °C), Daegu (30 °C) and Gwangju (30 °C).

South Korea in August: where is the sea warmest?

The sea is warmest at Jeju (27 °C), Busan (27 °C) and Ulsan (26 °C).

South Korea in August: where is the weather best?

The best holiday weather in August – warm, sunny and dry – is in Sokcho, Busan and Seoul.

South Korea month by month

Climate averages 1996–2025, not a forecast. Data: Copernicus ERA5 / ERA5-Land via Open-Meteo.com (CC BY 4.0), NOAA OISST, WMO 1991–2020 (NOAA NCEI), GeoNames (CC BY 4.0). Sources & licences