Mild
Average highs are around 21°C, so days are mild rather than hot.
May verdict
Incheon, South Korea in May
Weather score49Mixed
Mixed for holiday weather
Average highs are around 21°C, so days are mild rather than hot. Sunshine averages 8.2h per day, so bright days are a strong part of the month. Rainfall averages 88mm, so some wet days are possible.
May weather
Monthly averages
Temp
21°C
Rain
88mm
Sun
8.2h
Sea
12°C
Weather score
49
Mixed
Seasonal climate calendar
TemperatureTemp
RainRain
SunSun
SwimSwim
Weather scoreWeather score
Trip feel
Showers
Rainfall averages 88mm, so some wet days are possible.
Bright
Sunshine averages 8.2h 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 Incheon, South Korea with nearby places by weather score, rain, sun, temperature, and swim conditions.
Temperature
May21°C average high
May sits in the warmer part of the year, so midday sightseeing can feel heavier than in cooler months.
Warmest monthsJune to September
This stretch sets the upper range for average daytime heat.
Rain
May88mm average rain
May sits on the drier side of Incheon's year, which helps with sightseeing and transfers.
Driest monthsJanuary to May and October to December
This is the drier part of the year, when outdoor plans usually need less weather flexibility.
Sun
May8.2 hours average sun
May is one of Incheon'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 Incheon's yearly sea-temperature average, so swimming comfort is fairly typical.
Warmest seaJuly to October
Sea temperatures are usually near 21°C in this stretch, so swimming comfort is at its strongest.
Weather score
May49 weather score
May sits close to Incheon's yearly weather-score average, giving a typical overall read on the month.
Best weather monthsJune and August to September
These months have the strongest weather score in the monthly averages.
