When to go · Busan
Busan in September
Great month. Inside Busan's best window: Apr–Jun and Sep–Nov (mild, dry, before/after the summer beach crowds).
Key facts
- Verdict
- Great
- Temperature
- 27°C81°F / 19°C66°F
- average high / low
- Rain days
- 11
- Crowds
- Medium
- South Korea overall
- Prices
- Medium
- South Korea overall
Verdict
Inside Busan's best window: Apr–Jun and Sep–Nov (mild, dry, before/after the summer beach crowds).
Weather in September
- BusanHighs around 27 °C, lows around 19 °C, rain on about 11 daysHighs around 81 °F, lows around 66 °F, rain on about 11 days
- Busan and south-east coast, South Korea · Busan, Gyeongju, Tongyeong, Ulsanstorm or typhoon risk
Milder winters than Seoul, rarely below freezing; typhoons most likely Aug–Sep and ferries to Japan stop when they pass.
Festivals and holidays
Dates as our data lists them. Moving holidays (lunar and Islamic calendars, Easter) shift every year: check the date for your year before you build a trip on it.
Chuseok (harvest festival) big impact
Chuseok: 24–26 Sep 2026 (passed); about 14–16 Sep 2027 (check) · South Korea
Same three-day shutdown as Seollal; the largest travel peak of the year.
Crowds and prices
- Crowds · South Korea overall
- Medium
- Prices · South Korea overall
- Medium
South Korea overall: Heat eases; typhoon risk remains and Chuseok shuts the country for 3 days in many years.
What to pack
- A rain jacket or umbrella and shoes that dry fast
- A spare day in the plan: storms can cancel flights and ferries