South Korea in May: where is it warmest?
In May, Daegu is the warmest place with 24 °C by day, Sokcho the coolest with 20 °C. 8 of 9 destinations have good holiday weather.
All destinations in May, warmest first
Long-term averages for the month: daytime high, sea, sunshine and rainy days.
South Korea in May: quick answers
South Korea in May: where is it warmest?
The warmest places in May are Daegu (24 °C), Daejeon (24 °C) and Gwangju (23 °C).
South Korea in May: where is the sea warmest?
The sea is warmest at Ulsan (17 °C), Busan (17 °C) and Jeju (17 °C).
South Korea in May: where is the weather best?
The best holiday weather in May – warm, sunny and dry – is in Daegu, Daejeon and Gyeongju.
South Korea month by month
South Korea: weather & best time to visit
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