South Korea in September

September is South Korea's 7th-best month (rank 7 of 12): its 10 destinations average 66/100, led by Incheon at 76 — 28°C and 9 rainy days — while Pyeongchang trails at 15 with 167 mm of rain.

#7 of 12 months for South Korea · 10 destinations · updated September 2026 · climate normals from ERA5 reanalysis

🇰🇷 South Korea, month by month

66/100 in September
  1. 56Jan
  2. 62Feb
  3. 69Mar
  4. 75Apr
  5. 80May
  6. 73Jun
  7. 57Jul
  8. 58Aug
  9. 66Sep
  10. 74Oct
  11. 70Nov
  12. 59Dec

Where in South Korea in September

#PlaceTypeFeels-like highRainComfortAt its best
1IncheonCity28°C148 mm · 9 days76 tier B—
2SeoulCity30°C148 mm · 9 days75 tier B—
3GangneungBeach27°C221 mm · 14 days74 tier B—
4SokchoBeach26°C194 mm · 12 days73 tier B—
5DaeguCity29°C187 mm · 11 days72 tier B—
6JeonjuCity30°C172 mm · 11 days71 tier B—
7GyeongjuCity28°C219 mm · 13 days69 tier C—
8JejuIsland30°C239 mm · 15 days69 tier C—
9BusanCity30°C237 mm · 13 days65 tier C—
10PyeongchangSki resort27°C167 mm · 11 days15 tier F—

Comfort is SeasonMap's 0–100 score; each place is judged through the lens that suits it — beaches on beach weather, ski resorts on snow. "At its best" means September is one of that place's own top three months. Feels-like highs fold in humidity, wind and sun.

What's on in South Korea in September

  • Chuseok · Seoul and 8 more places · 24–26 Sep
  • Buckwheat flowers at Bongpyeong · Pyeongchang · 25 Aug – 15 Sep (usually)

Peak crowds at 3 of South Korea's 3 well-known places this month.

Better months for South Korea

May · 80/100April · 75/100October · 74/100Weakest: January · 56/100
← South Korea in AugustSouth Korea in October →Best time to visit South Korea, month by monthCompare: Incheon vs Seoul in September