South Korea weather in May - temperature, rain and is it a good time to visit?

May is one of the best months for a holiday in South Korea.
Daytime
23°
Night
14°
☀️ Day length
14 h 03 min
Chance of rain
28%
Thunder days
3%
Humid days
29%
WEATHER THROUGH THE YEARSouth Korea - May vs the year-4°-2°12°18°23°14°26°19°29°23°30°24°25°19°21°14°13°-2°CHANCE OF RAIN (%)132222342833504045302919JanFebMarAprMayJunJulAugSepOctNovDecWARMESTAug (30°)COLDESTJan (4°)DRIESTJan (13%)WETTESTJul (50%)world-prices.com · 2026-07-08 · ★ best months
In May, South Korea averages about 23° during the day and 14° at night. There's a moderate chance of rain (about 28%).

South Korea weather all year - average temperatures and rain

MonthDayNightChance of rain
January 4℃-4℃13%
February 7℃-2℃22%
March 12℃3℃22%
April ★ 18℃8℃34%
May 23℃14℃28%
June ★ 26℃19℃33%
July ★ 29℃23℃50%
August ★ 30℃24℃40%
September ★ 25℃19℃45%
October ★ 21℃14℃30%
November ★ 13℃5℃29%
December 6℃-2℃19%
★ - months most often recommended for travel

Where is it warmest in South Korea in May? Weather by city

PlaceDayNight🌊 SeaChance of rain
Daegu 25℃13℃-34%
Seoul 24℃14℃17℃26%
Anyang 24℃14℃17℃26%
Busan 24℃14℃17℃29%
Changwon 24℃14℃19℃29%
Incheon 21℃13℃17℃30%
Ulsan 21℃15℃16℃31%
Gangneung 20℃13℃16℃21%
Travelling soon? Check the live 14-day weather forecast for South Korea.

South Korea weather - other months

JanuaryFebruaryMarchAprilMayJuneJulyAugustSeptemberOctoberNovemberDecember