Mild
Average highs are around 23°C, so days are mild rather than hot.
May verdict
Seoul, South Korea in May
Weather score52Mixed
Mixed for holiday weather
Average highs are around 23°C, so days are mild rather than hot. Sunshine averages 8h per day, so bright days are a strong part of the month. Rainfall averages 90mm, so some wet days are possible.
May weather
Monthly averages
Temp
23°C
Rain
90mm
Sun
8h
Sea
12°C
Weather score
52
Mixed
Seasonal climate calendar
TemperatureTemp
RainRain
SunSun
SwimSwim
Weather scoreWeather score
Trip feel
Showers
Rainfall averages 90mm, so some wet days are possible.
Bright
Sunshine averages 8h per day, so bright days are a strong part of the month.
Cool sea
Sea temperatures average 12°C, so the water can feel cool.
Map
Weather map
Compare Seoul, South Korea with nearby places by weather score, rain, sun, temperature, and swim conditions.
Temperature
May23°C average high
May sits in the warmer part of the year, so midday sightseeing can feel heavier than in cooler months.
Warmest monthsMay to September
This stretch sets the upper range for average daytime heat.
Rain
May90mm average rain
May sits on the drier side of Seoul's year, which helps with sightseeing and transfers.
Driest monthsJanuary to June and October to December
This is the drier part of the year, when outdoor plans usually need less weather flexibility.
Sun
May8 hours average sun
May is one of Seoul's sunniest months, with some of the strongest bright-day conditions in the yearly averages.
Brightest monthsApril to June
This stretch has the strongest sunshine in the monthly averages.
Sea temperature
May12°C average sea
May is close to Seoul's yearly sea-temperature average, so swimming comfort is fairly typical.
Warmest seaJuly to October
Sea temperatures are usually near 20°C in this stretch, so swimming comfort is at its strongest.
Weather score
May52 weather score
May scores above Seoul's yearly average, so the overall weather mix is stronger than most months.
Best weather monthsJune and September
These months have the strongest weather score in the monthly averages.
Hotels in Seoul, South Korea
Marriott
View all
JW Marriott Dongdaemun Square SeoulSeoul, South Korea
JW Marriott Hotel SeoulSeoul, South Korea
Josun Palace, a Luxury Collection Hotel, Seoul GangnamSeoul, South Korea
L’Escape, a Luxury Collection Hotel, Seoul MyeongdongSeoul, South Korea
The Westin Josun SeoulSeoul, South Korea
The Westin Seoul ParnasSeoul, South Korea