South KoreaCountries South Korea September Temperatures
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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

  • 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.

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