Mild
Average highs are around 25°C, so days are mild rather than hot.
June verdict
Good for holiday weather
Average highs are around 25°C, so days are mild rather than hot. Sunshine averages 6.9h per day, enough for a balanced month. Rainfall averages 167mm, so some wet days are possible.

Monthly averages
Temp
25°C
Rain
167mm
Sun
6.9h
Sea
15°C
Weather score
56
Good
Mild
Average highs are around 25°C, so days are mild rather than hot.
Showers
Rainfall averages 167mm, so some wet days are possible.
Some sun
Sunshine averages 6.9h per day, enough for a balanced month.
Cool sea
Sea temperatures average 15°C, so the water can feel cool.
Map
Compare South Korea with nearby places by weather score, rain, sun, temperature, and swim conditions.
June25°C average high
June 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.
June167mm average rain
June sits near South Korea'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.
June6.9 hours average sun
June sits close to South Korea's yearly sunshine average, so it is a middle-of-the-pack month for bright days.
Brightest monthsApril to May
This stretch has the strongest sunshine in the monthly averages.
June15°C average sea
June is close to South Korea's yearly sea-temperature average, so swimming comfort is fairly typical.
Warmest seaJuly to September
Sea temperatures are usually near 18°C in this stretch, so swimming comfort is at its strongest.
June56 weather score
June scores above South Korea's yearly average, so the overall weather mix is stronger than most months.
Best weather monthsJune to September
These months have the strongest weather score in the monthly averages.