Weather & climate FAQ — South Korea
Answers to the most-searched weather and climate questions about South Korea, from 2020–2024 daily observations across 6 cities.
South Korea hub ★ Best time to visit South Korea
Frequently asked questions
What is the weather like in South Korea?
Climolog covers 6 cities in South Korea with 2020–2024 daily weather observations. Typical monthly highs range from 4.9°C (in January) to 30°C (in August); see each city's page for day-by-day history and month-by-month averages.
What is the climate in South Korea by month?
Across South Korea, the hottest month is August (avg high 30°C) and the coldest is January (avg low -4.3°C). For the full month-by-month breakdown across every city, see the best-time-to-visit guide for South Korea.
When is the best time to visit South Korea?
The best months to visit South Korea are October, May, April — the highest travel-comfort scores across the country's cities (comfortable temperatures, low rainfall, and good sunshine). See the month-by-month ranking for South Korea for the best city in each month.
What is the hottest month in South Korea?
August is the hottest month, averaging a high of 30°C across South Korea's cities. See August climate details.
What is the coldest month in South Korea?
January is the coldest month, averaging a low of -4.3°C across South Korea's cities. See January climate details.
What is the wettest month in South Korea?
July is the wettest month, averaging about 323.5 mm of rain per month across South Korea's cities. See July climate details.
What is the driest month in South Korea?
December is the driest month, averaging about 22.7 mm of rain per month across South Korea's cities. See December climate details.
When is the rainy season in South Korea?
The wettest months in South Korea are July, August, September, which together form the main rainy season. Travel is usually drier and more comfortable in October.
Which city in South Korea has the best weather?
Among South Korea's cities, Gwangju has the best weather — its best month is October (travel-comfort score 87/100). See its best-time-to-visit guide.
How many cities does Climolog cover in South Korea?
Climolog covers 6 cities in South Korea with 2020–2024 daily weather data. Browse them all on the South Korea hub.
Best time to visit by month
Best time to visit in October Best time to visit in May Best time to visit in April
Each links to the month hub listing every city whose single best-weather month is that month.