Weather in September in South Korea
Planning a trip to South Korea this September? Here's what you need to know about the weather:
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.
Temperatures
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.For a closer look at conditions across South Korea, refer to the map below.
Precipitation
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.Average sunshine
Most areas experience a moderate amount of sunshine, with approximately 182 hours of sunlight expected in Seoul. This makes it neither too gloomy nor overly bright.For a more detailed look at South Korea's conditions throughout the year, check out our South Korea climate page.
Where to go in South Korea in September
perfect weather
pleasant
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Select a Month of Interest
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit South Korea, check out our South Korea's climate page.
Popular destinations
What is the weather like in September for the 5 most popular destinations in South Korea?
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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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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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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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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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.
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 travel conditions. Find out where to go with our weather planner.