Warm
Average highs sit around 29°C, giving warm days by monthly-average standards.
August verdict
Mixed for holiday weather
Average highs sit around 29°C, giving warm days by monthly-average standards. Sunshine averages 6.1h per day, enough for a balanced month. Rainfall averages 289mm, so showers are a real planning factor.

Monthly averages
Temp
29°C
Rain
289mm
Sun
6.1h
Sea
23°C
Weather score
52
Mixed
Warm
Average highs sit around 29°C, giving warm days by monthly-average standards.
Wet
Rainfall averages 289mm, so showers are a real planning factor.
Some sun
Sunshine averages 6.1h per day, enough for a balanced month.
Swimmable
Sea temperatures average 23°C, which can work for swimming but may feel fresh.
Map
Compare Seoul, South Korea with nearby places by weather score, rain, sun, temperature, and swim conditions.
August29°C average high
August is one of Seoul's warmest months, with daytime heat above the yearly average.
Warmest monthsMay to September
This stretch sets the upper range for average daytime heat.
August289mm average rain
August is wetter than Seoul'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.
August6.1 hours average sun
August sits close to Seoul's yearly sunshine average, so it is a middle-of-the-pack month for bright days.
Brightest monthsApril to June
This stretch has the strongest sunshine in the monthly averages.
August23°C average sea
August is one of Seoul's warmest sea months, when swimming comfort is usually strongest.
Warmest seaJuly to October
Sea temperatures are usually near 20°C in this stretch, so swimming comfort is at its strongest.
August52 weather score
August scores above Seoul's yearly average, so the overall weather mix is stronger than most months.
Best weather monthsJune and September
These months have the strongest weather score in the monthly averages.
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