Gwangju Weather in September

South Korea · September climate averages and travel tips

Avg high26°C (78°F)
Avg low17°C (62°F)
Rainfall154 mm (6.1 in)
RatingFair 5.2/10

In September, Gwangju has average highs of 26°C (78°F) and lows of 17°C (62°F). September is autumn (fall) in South Korea. The month is wet, with about 154 mm (6.1 in) of rain spread over 11 days. You get roughly 12.2 hours of daylight and frequently cloudy skies.

Is September a good time to visit Gwangju?

September is a fair time to visit Gwangju (5.2/10) mainly because of the rain. For better weather, go in October.

Visiting Gwangju in September

September weather

September in Gwangju feels warm, damp and a little gentler than August. Days reach 26°C, with nights near 17°C, but humidity stays high. Rain falls on 11 days, so a sunny morning can still turn showery. The air is less cloudy than you might expect, though sunshine averages only 4.4 hours a day.

You can explore the Asian Culture Center and downtown streets between showers, or visit Mudeungsan National Park on a dry day. Skip exposed mountain trails when rain is falling; wet paths can be slippery. The muggy afternoons may still feel tiring, so save longer walks for cooler parts of the day.

Holidays and local plans

Chuseok, Korea's major harvest holiday, sometimes falls in September. Its date changes each year. If it does, expect many locals to travel to see family, and some shops and restaurants to close. Gwangju's train and bus stations can also be busier around the holiday.

For families, a calmer day at the Asian Culture Center can beat a wet hike up Mudeungsan. September is autumn, but it isn't as cool or dry as October. October is Gwangju's best-rated month, so September can suit you if you'd rather visit before the most popular autumn period.

Crowds and useful tips

Compared with August, September is cooler and rainier days are fewer. It's still humid, though, and showers can interrupt outdoor plans. October is drier and likely draws more autumn visitors; September generally feels like a quieter shoulder month. Prices can vary, especially around Chuseok, so don't assume every week is equally calm.

On a rainy afternoon, head to Yangdong Market for a look around, then try Gwangju-style tteokgalbi, grilled short rib patties, near Songjeong Station. That gives you a local food stop without relying on clear weather.

September weather at a glance

Average high26°C (78°F)
Average low17°C (62°F)
Daily mean21°C (70°F)
Rainfall154 mm (6.1 in)
Rainy days (1 mm+)11
Humidity84%
Cloud cover67%
Daylight12.2 hours
Est. sunshine4.4 hours/day
Wind7.1 km/h
vs August4°C cooler than August, with 82 mm less rain.

What to pack for Gwangju in September

Gwangju weather in other months

Jan4°C / -4°C28 mmPoorFeb7°C / -3°C49 mmFairMar12°C / 0°C76 mmGoodApr18°C / 6°C103 mmExcellentMay23°C / 11°C113 mmExcellentJun26°C / 16°C157 mmFairJul29°C / 21°C298 mmPoorAug29°C / 22°C236 mmPoorSep26°C / 17°C154 mmFairOct20°C / 9°C68 mmExcellentNov14°C / 3°C55 mmGoodDec6°C / -2°C34 mmFair

← AugustBest time to visit GwangjuOctober →

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