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°C (72°F)72°F (22°C) / 14°C (57°F)57°F (14°C)
- 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).
Is another month better than October?
No other month rates higher than October for Jeju City in this guide.
Weather in October
- Jeju CityHighs around 22 °C (72 °F), lows around 14 °C (57 °F), rain on about 7 daysHighs around 72 °F (22 °C), lows around 57 °F (14 °C), 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.
Compare two months
Weather, crowds and prices for any two months in Jeju City, side by side.
Verdict
Oct: Great
Apr: Great
Daytime high
Oct: 22 °C (72 °F)72 °F (22 °C)
Apr: 18 °C (64 °F)64 °F (18 °C)
Night low
Oct: 14 °C (57 °F)57 °F (14 °C)
Apr: 10 °C (50 °F)50 °F (10 °C)
Rain days
Oct: 7 (better)
Apr: 9
Crowds
Oct: High
Apr: High
Prices
Oct: High
Apr: High
Festivals listed
Oct: 1
Apr: 0
October: Inside Jeju City's best window: Apr–Jun and Sep–Oct (mild, before summer humidity and after typhoon season).
April: Inside Jeju City's best window: Apr–Jun and Sep–Oct (mild, before summer humidity and after typhoon season).
Jeju City: figures are long-term averages from this guide, not a forecast.
What to pack
Nothing unusual for the weather this month.