Cool
Average highs are around 19°C, so pack for cooler days.
September verdict
Seoraksan National Park, South Korea in September
Weather score37Poor
Poor for holiday weather
Average highs are around 19°C, so pack for cooler days. Sunshine averages 5.9h per day, enough for a balanced month. Rainfall averages 203mm, so showers are a real planning factor.
September weather
Monthly averages
Temp
19°C
Rain
203mm
Sun
5.9h
Sea
22°C
Weather score
37
Poor
Seasonal climate calendar
TemperatureTemp
RainRain
SunSun
SwimSwim
Weather scoreWeather score
Trip feel
Wet
Rainfall averages 203mm, so showers are a real planning factor.
Some sun
Sunshine averages 5.9h per day, enough for a balanced month.
Cool sea
Sea temperatures average 22°C, so the water can feel cool.
Map
Weather map
Compare Seoraksan National Park, South Korea with nearby places by weather score, rain, sun, temperature, and swim conditions.
Temperature
September19°C average high
September 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
September203mm average rain
September sits near Seoraksan National Park's yearly rainfall average, so rain is a normal planning factor rather than an outlier.
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
September5.9 hours average sun
September is below Seoraksan National Park's yearly sunshine average, so bright-day planning is less reliable than in peak months.
Brightest monthsApril to May
This stretch has the strongest sunshine in the monthly averages.
Sea temperature
September22°C average sea
September sits in the warmer sea-temperature season, usually making swimming easier to enjoy.
Warmest seaJuly to September
Sea temperatures are usually near 22°C in this stretch, so swimming comfort is at its strongest.
Weather score
September37 weather score
September sits close to Seoraksan National Park'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.
