Weather in South Korea in August

August in South Korea is warm outdoor weather. Days are long enough to be useful. Shade starts to matter at midday.

A country pin in August is a warning: one region of South Korea will not match another. Use a city page if you already know where you are going. August is the peak of the warm side of the year in South Korea. If you wanted the gentlest heat, this is not that month.

South Korea
Average temp
27°C

23–31°C

Rainfall
315 mm

A wet month

Sunshine
5.5 h

hours per day

What to expect

Daytime

Warm days in South Korea in August. A hat starts to earn its keep at midday. Evenings are the comfortable part of the clock.

You can walk at more hours than in the fierce months. Still build in a pause when the sun is high. Nights are easy.

Rain

August is the wet side of the year in South Korea. Days can be heavy. Plans that cannot survive rain are the wrong plans.

This is not a reason to skip South Korea if you like the place. It is a reason to pack for weather and to stop treating every grey hour as a failed holiday.

Evening

Evenings stay warm.

What to pack

  • Sun protection

  • Rain jacket

Average weather in South Korea

TemperatureRainfall

Source: MeteostatPeriod: 1991-2020Checked: 28 Aug 2026265 places covered

Similar weather in August

Other destinations whose August averages sit close to this one.

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FAQs about South Korea

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.

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