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When is the best time to visit South Korea?

The best time to visit South Korea is between May and October, the most comfortable stretch of the year on these averages.

South Korea has a real winter and a real summer. Snow is part of the cold months, not a freak event. The outdoor year is short in the middle and long at the ends of summer. The pin on this page is a country centroid. Seoul and Busan will not feel like the same week, and a city page is the honest place to read the year if you already know where you are going.

Most visitors come once the freeze has lifted, or they come on purpose for the cold. Do not book South Korea as a sunlounger destination. The monthly table owns the averages. This layer is the year those numbers sit inside.

South Korea
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Spring

Spring in South Korea is the thaw. March, April and May move from leftover winter to usable outdoor days. Snow retreats. Mud and bright afternoons can share a week.

In South Korea the meteorological summer is June, July and August and winter is December, January and February. Come for cities and the first terraces, not for guaranteed picnic weather. A squall in South Korea in these months is ordinary, not a ruined trip.

Read South Korea in this stretch as its own climate, not as a generic holiday season copied from another destination.

Summer

Summer is the outdoor season in South Korea: June, July and August. Days are long. Heat is relative to the winter you came from, not to a Mediterranean coast. This is walking, terrace and lake weather, not a sunlounger climate.

In South Korea the meteorological summer is June, July and August and winter is December, January and February. Evenings can still want a layer, especially away from the built-up centre. Rain does not disappear just because it is summer. Pack for a useful day that can turn wet.

Autumn

Autumn in South Korea is short and useful: September, October and November. The first weeks are still outdoor days. The last weeks are a coat, wet leaves, and the knowledge that winter is coming.

In South Korea the meteorological summer is June, July and August and winter is December, January and February. Come for cities and landscape, not for a last swim. Light is good. Afternoons end early. A shell in the bag is not optional.

Read South Korea in this stretch as its own climate, not as a generic holiday season copied from another destination.

Winter

Winter in South Korea is the real thing: December, January and February. Cold, short days, and snow that is part of the season rather than a postcard accident. This is a city-and-indoor trip unless you came for the cold on purpose.

In South Korea the meteorological summer is June, July and August and winter is December, January and February. Do not book South Korea as a mild winter-sun destination. Coat, boots, early dark. The monthly table will look grim because the months are grim in the honest way.

South Korea weather by month

TemperatureRainfall

Source: MeteostatPeriod: 1991-2020Checked: 1 Oct 2026358 places covered

Average temperature and rainfall, month by month

Every figure below is a 1991–2020 climate normal for South Korea, in °C and °F. Open a month for what to expect and what to pack.

South Korea weather by month: average temperature, rainfall, sunshine for each month, from 1991–2020 climate normals
MonthAverageRainfall
January-1°C / 31°F27 mm
February2°C / 35°F37 mm
March7°C / 44°F52 mm
April13°C / 55°F76 mm
May19°C / 65°F97 mm
June23°C / 73°F180 mm
July26°C / 78°F309 mm
August27°C / 80°F315 mm
September22°C / 71°F158 mm
October15°C / 59°F54 mm
November8°C / 47°F47 mm
December1°C / 34°F28 mm

Weather in South Korea cities

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FAQs about South Korea weather

Climate averages for South Korea, 1991–2020.

The best time to visit South Korea is between May and October, the most comfortable stretch of the year on these averages.

August is the hottest month, with an average around 27°C.

August is the wettest month, with about 315 mm of rain.

South Korea has a distinct rainy season from June to August, peaking in August at about 315 mm. The dry season runs from September to May.

January is the coolest month, averaging -1°C (31°F) against 27°C (80°F) in August.

This page does not show today's weather. It is a 1991–2020 climate normal from Meteostat — a long-run average of what each month is usually like, which is what you want when booking ahead. For today or the coming week, check a live forecast.

No. These are 1991–2020 climate normals from Meteostat, not a live forecast. Actual weather in any given week can differ.