Mild
Average highs are around 21°C, so days are mild rather than hot.
May verdict
Jirisan National Park, South Korea in May
Weather score40Mixed
Mixed for holiday weather
Average highs are around 21°C, so days are mild rather than hot. Sunshine averages 7.8h per day, enough for a balanced month. Rainfall averages 130mm, so some wet days are possible.
May weather
Monthly averages
Temp
21°C
Rain
130mm
Sun
7.8h
Sea
16°C
Weather score
40
Mixed
Seasonal climate calendar
TemperatureTemp
RainRain
SunSun
SwimSwim
Weather scoreWeather score
Trip feel
Showers
Rainfall averages 130mm, so some wet days are possible.
Some sun
Sunshine averages 7.8h per day, enough for a balanced month.
Cool sea
Sea temperatures average 16°C, so the water can feel cool.
Map
Weather map
Compare Jirisan National Park, 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
May130mm average rain
May sits near Jirisan National Park's yearly rainfall average, so rain is a normal planning factor rather than an outlier.
Driest monthsJanuary to March, May, and October to December
This is the drier part of the year, when outdoor plans usually need less weather flexibility.
Sun
May7.8 hours average sun
May is one of Jirisan National Park's sunniest months, with some of the strongest bright-day conditions in the yearly averages.
Brightest monthsApril to May
This stretch has the strongest sunshine in the monthly averages.
Sea temperature
May16°C average sea
May is below Jirisan National Park's yearly sea-temperature average, so swimming can feel fresher.
Warmest seaJuly to September
Sea temperatures are usually near 23°C in this stretch, so swimming comfort is at its strongest.
Weather score
May40 weather score
May sits close to Jirisan National Park's yearly weather-score average, giving a typical overall read on the month.
Best weather monthsAugust to September
These months have the strongest weather score in the monthly averages.
