Mild
Average highs are around 24°C, so days are mild rather than hot.
September verdict
Gangneung, South Korea in September
Weather score50Mixed
Mixed for holiday weather
Average highs are around 24°C, so days are mild rather than hot. Sunshine averages 5.9h per day, enough for a balanced month. Rainfall averages 213mm, so showers are a real planning factor.
September weather
Monthly averages
Temp
24°C
Rain
213mm
Sun
5.9h
Sea
22°C
Weather score
50
Mixed
Seasonal climate calendar
TemperatureTemp
RainRain
SunSun
SwimSwim
Weather scoreWeather score
Trip feel
Wet
Rainfall averages 213mm, so showers are a real planning factor.
Some sun
Sunshine averages 5.9h per day, enough for a balanced month.
Swimmable
Sea temperatures average 22°C, which can work for swimming but may feel fresh.
Map
Weather map
Compare Gangneung, South Korea with nearby places by weather score, rain, sun, temperature, and swim conditions.
Temperature
September24°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
September213mm average rain
September is wetter than Gangneung's yearly average, so flexible plans matter more.
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
September5.9 hours average sun
September is below Gangneung'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
September50 weather score
September scores above Gangneung's yearly average, so the overall weather mix is stronger than most months.
Best weather monthsMay to September
These months have the strongest weather score in the monthly averages.
Hotels near Gangneung, South Korea
Marriott
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Josun Palace, a Luxury Collection Hotel, Seoul GangnamSeoul, South Korea
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