South Korea weather in September
Considering a trip to South Korea this September and wondering about the expected weather conditions? Find all the crucial information you need right here, addressing your question:
What is the weather like in South Korea in September?
September in South Korea generally has warm temperatures, with precipitation levels ranging from high to heavy.
The average maximum temperatures are warm and range from 23°C in Gangneung to 28°C in Gwangju. Nighttime temperatures generally drop to 17°C in Gwangju and 17°C in Gangneung.
In September, precipitation varies across different areas. From high rainfall in Ganghwa with an average of 121 mm to heavy rainfall in Gangneung with 203 mm. Seoul enjoys a balanced 182 hours of sunlight. Ensuring it's neither too overcast nor too sunny.
For specific regional insights in South Korea for September, refer to the map provided below. For an in-depth overview of the yearly weather conditions, do visit our South Korea climate page.
Where to go in South Korea in September
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Popular destinations in South Korea
What is the weather like in September for the 5 most popular destinations in South Korea?
Average weather in Seoul
In September Seoul generally has high temperatures with maximum daytime temperatures around 27°C, minimum nighttime temperatures around 17°C and high monthly rainfall. So on average the conditions are pleasant that month.
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Average weather in Busan
In September Busan generally has high temperatures with maximum daytime temperatures around 26°C, minimum nighttime temperatures around 21°C and heavy monthly rainfall. So on average the conditions are pleasant that month.
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Average weather in Jeju
In September Jeju generally has high temperatures with maximum daytime temperatures around 26°C, minimum nighttime temperatures around 22°C and heavy monthly rainfall. So on average the conditions are pleasant that month.
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Average weather in Seogwipo
In September Seogwipo generally has high temperatures with maximum daytime temperatures around 27°C, minimum nighttime temperatures around 21°C and heavy monthly rainfall. So on average the conditions are unpleasant that month.
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Average weather in Incheon
In September Incheon generally has high temperatures with maximum daytime temperatures around 26°C, minimum nighttime temperatures around 19°C and high monthly rainfall. So on average the conditions are pleasant that month.
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Is your destination not in the list? Have a look at other destinations in South Korea.
Is September the best time to visit South Korea?
In our opinion, September is a good time to visit South Korea with overall pleasant weather in Seoul. It's worth noting that weather conditions might differ depending on the location you visit.
On average, the best time to visit South Korea is in May and October with generally perfect weather in Seoul. On the other hand, the months of January, July, August and December tend to have poor weather conditions.
Interested in more climate information?
We have much more information about the climate in South Korea.
Interested in the weather conditions in a specific month? Select the month below.
Weather and climate has detailed information for every country in the world. Are you going to South Korea? Get detailed historical weather averages for many cities in South Korea.
Not sure yet where to go? We now have a tool which recommends destinations that suit your ideal climate conditions. Find out where to go with our weather planner.