When to go · Jeju City
Jeju City in October
Great month. Inside Jeju City's best window: Apr–Jun and Sep–Oct (mild, before summer humidity and after typhoon season).
Key facts
- Verdict
- Great
- Temperature
- 22°C72°F / 14°C57°F
- average high / low
- Rain days
- 7
- Crowds
- High
- South Korea overall
- Prices
- High
- South Korea overall
Verdict
Inside Jeju City's best window: Apr–Jun and Sep–Oct (mild, before summer humidity and after typhoon season).
Weather in October
- Jeju CityHighs around 22 °C, lows around 14 °C, rain on about 7 daysHighs around 72 °F, lows around 57 °F, rain on about 7 days
- Jeju, South Korea · Jeju City, Seogwipo, Hallasanbest weather
Windy and wet; the island takes the first hit of most typhoons. Hallasan summit gets snow in winter; flights stop in strong crosswinds.
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
- High
- Prices · South Korea overall
- High
South Korea overall: Clear skies, autumn colour in the mountains, festivals everywhere; Chuseok falls here some years.
High-price month: see what to book ahead.
What to pack
Nothing unusual for the weather this month.