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Temperatures in September
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Temperature in South Korea in September

In South Korea in September the average maximum daytime temperatures are high 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.

What is the temperature of the different cities in South Korea in September?

To get a sense of September's typical temperatures in the key spots of South Korea, explore the map below. Click on a point for an in-depth look.

Weather conditions Weather
Temperatures
Precipitation
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Legend very warm warm pleasant moderate cold very cold
Very warm means maximum temperatures above 30°C. Warm: 22°C to 30°C. Pleasant: 18°C to 22°C Moderate: 12°C to 18°C. Cold: 2°C to 12°C. Very cold: lower than 2°C

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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.

  • What is the warmest city in September in South Korea?
    • From a thorough analysis of our records, Gwangju clearly dominates in terms of high temperatures. The city witnesses daytime temperatures hovering around 28°C, and evenings that remain near 17°C.

  • What is the coldest city in September in South Korea?
    • For the month of September, Gangneung is the most temperate city in South Korea based on our records. With highs averaging 23°C and nighttime temperatures dipping to around 17°C.

  • How much sun does South Korea get in September?
    • The city Seoul usually sees around 182 hours of sunlight, indicating a moderately sunny period.

  • What is the water's temperature in September?
    • The water temperature averages approximately 23°C in Sosan this month, a rehreshing temperature for swimming and cooling off.

    Interested in more climate information?

    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.

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