When is the best time to visit South Korea?

April, May and October. Across South Korea's 10 destinations, May averages 80/100 for climate comfort with mean highs of 23.2°C and 94 mm of rain.

What is the worst month to visit South Korea?

January, averaging 56/100 — mean highs of 5.1°C and 32 mm of rain across the country's destinations.

What is the hottest month in South Korea?

August, with mean daily highs of 30.5°C averaged across 10 destinations.

What is the wettest month in South Korea?

July, averaging 229 mm of rain.

Best time to visit South Korea

The best time to visit South Korea is April, May and October, when its 10 destinations average 80/100 for climate comfort — January is the weakest month, at 56/100.

Updated September 2026 · averaged over 10 South Korea destinations · climate normals from ERA5 reanalysis

🇰🇷 South Korea, month by month

best May

Average comfort out of 100 · open a month for where to go in it

South Korea climate comfort by month

Month	Comfort	Avg high	Rain	Pick of the month
January	56	5.1°C	32 mm	Pyeongchang 74
February	62	7.1°C	39 mm	Pyeongchang 71
March	69	13.2°C	64 mm	Daegu 76
April	75	18.7°C	77 mm	Daegu 85
May	80	23.2°C	94 mm	Gyeongju 91
June	73	26.8°C	129 mm	Gangneung 85
July	57	29.6°C	229 mm	Jeju 77
August	58	30.5°C	199 mm	Jeju 82
September	66	26.1°C	193 mm	Incheon 76
October	74	20.5°C	100 mm	Busan 86
November	70	14.4°C	48 mm	Busan 82
December	59	6.8°C	33 mm	Busan 70

Comfort is SeasonMap's 0–100 score, averaged across every South Korea destination in the dataset. Each place is judged through the lens that suits it — beaches on beach weather, ski resorts on snow. Averages from ERA5 reanalysis normals, not forecasts.

All 10 destinations in South Korea

South Korea — FAQ

When is the best time to visit South Korea?: April, May and October. Across South Korea's 10 destinations, May averages 80/100 for climate comfort with mean highs of 23.2°C and 94 mm of rain.
What is the worst month to visit South Korea?: January, averaging 56/100 — mean highs of 5.1°C and 32 mm of rain across the country's destinations.
What is the hottest month in South Korea?: August, with mean daily highs of 30.5°C averaged across 10 destinations.
What is the wettest month in South Korea?: July, averaging 229 mm of rain.