Suwon Weather in September

South Korea · September climate averages and travel tips

Avg high25°C (77°F)
Avg low17°C (63°F)
Rainfall146 mm (5.7 in)
RatingFair 6.1/10

Suwon in September sees daytime temperatures around 25°C (77°F), dropping to about 17°C (63°F) at night. September is autumn (fall) in South Korea. The month is wet, with about 146 mm (5.7 in) of rain spread over 11 days, making it the third wettest month of the year. You get roughly 12.2 hours of daylight and frequently cloudy skies.

Is September a good time to visit Suwon?

September is a fair time to visit Suwon (6.1/10) mainly because of the rain. For better weather, go in May and October.

Visiting Suwon in September

September weather

September brings milder days than August, but it can still feel sticky. Highs reach 25°C, and humidity stays high. Rain falls on about 11 days, so showers may interrupt a walk. The weather is fair rather than reliably dry.

You can explore Suwon Hwaseong Fortress when skies are clear. Its long walls and open paths are less tiring in the cooler air than during August's heat. Save indoor stops, such as the Suwon Hwaseong Museum, for rainy spells. Heavy showers can make the fortress paths slippery, so don't plan a full day outdoors.

Festivals and crowds

Chuseok, Korea's autumn harvest holiday, sometimes falls in September; its date changes each year. Suwon Hwaseong Cultural Festival is an autumn event, but it's usually held in October, so don't count on it during a September visit.

September is quieter than the peak summer holiday period, and accommodation can be easier to find than in October, a popular month for Suwon. Chuseok is an exception: travel gets busy, and some shops and restaurants may close. Families visiting then should check opening days around the holiday.

Make the fortress easier

For a gentler outing, walk a section of the wall rather than trying to cover it all. Start near Hwaseong Haenggung palace in Haenggung-dong, then follow the fortress route towards Paldalmun Gate. If rain sets in, the palace and nearby cafés give you a break from exposed paths.

Couples who enjoy quieter walks may like September's cooler evenings, especially after the summer rush. Keep in mind that October is drier and cooler, while September still brings more rain. If you're visiting during Chuseok, check whether Hwaseong Haenggung is open before setting out.

September weather at a glance

Average high25°C (77°F)
Average low17°C (63°F)
Daily mean21°C (69°F)
Rainfall146 mm (5.7 in)
Rainy days (1 mm+)11
Humidity79%
Cloud cover63%
Daylight12.2 hours
Est. sunshine5 hours/day
Wind9.1 km/h
vs August4°C cooler than August, with 105 mm less rain.

What to pack for Suwon in September

Suwon weather in other months

Jan1°C / -7°C18 mmPoorFeb4°C / -5°C28 mmPoorMar9°C / 0°C44 mmFairApr16°C / 5°C66 mmExcellentMay21°C / 11°C90 mmExcellentJun26°C / 17°C131 mmGoodJul28°C / 21°C360 mmPoorAug29°C / 22°C251 mmPoorSep25°C / 17°C146 mmFairOct19°C / 10°C61 mmExcellentNov11°C / 3°C54 mmGoodDec3°C / -4°C25 mmPoor

← AugustBest time to visit SuwonOctober →

Better weather in September nearby

Nearby in September

Where else is good in September? See where to go in September.