Mild
Average highs are around 24°C, so days are mild rather than hot.
May verdict
Ulleungdo, South Korea in May
Weather score48Mixed
Mixed for holiday weather
Average highs are around 24°C, so days are mild rather than hot. Sunshine averages 0h per day, so this is not one of the brighter months. Rainfall averages 84mm, so some wet days are possible.
May weather
Monthly averages
Temp
24°C
Rain
84mm
Sun
0h
Sea
15°C
Weather score
48
Mixed
Seasonal climate calendar
TemperatureTemp
RainRain
SunSun
SwimSwim
Weather scoreWeather score
Trip feel
Showers
Rainfall averages 84mm, so some wet days are possible.
Limited sun
Sunshine averages 0h per day, so this is not one of the brighter months.
Cool sea
Sea temperatures average 15°C, so the water can feel cool.
Map
Weather map
Compare Ulleungdo, South Korea with nearby places by weather score, rain, sun, temperature, and swim conditions.
Temperature
May24°C average high
May is close to Ulleungdo's yearly temperature average, giving a typical read on daytime heat.
Warmest monthsJuly to September
This stretch sets the upper range for average daytime heat.
Rain
May84mm average rain
May sits on the drier side of Ulleungdo'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
May0 hours average sun
May is close to Ulleungdo's usual sunshine level, with limited seasonal swing across the year.
Brightest monthsAll year
Sunshine stays consistently strong through the year.
Sea temperature
May15°C average sea
May is below Ulleungdo's yearly sea-temperature average, so swimming can feel fresher.
Warmest seaJuly to September
Sea temperatures are usually near 22°C in this stretch, so swimming comfort is at its strongest.
Weather score
May48 weather score
May sits close to Ulleungdo's yearly weather-score average, giving a typical overall read on the month.
Best weather monthsJune to September
These months have the strongest weather score in the monthly averages.