Mornings sit near the overnight low around 22°C with clear, cooler light — best for outdoor photos before crowds build.
Jeju Weather in October
Everything you need to know about Jeju weather in October
Updated September 10, 2026
Korea · Jeju
Jeju Weather in October
October in Jeju is hot, humid and energetically busy. Expect daytime highs around 29°C (84°F), mild nights around 22°C, long sunny stretches, and the city at its most magical and most crowded Check the full climate tables below for monthly averages and packing cues.
- Avg high / low
- 29°C / 22°C
- 84F / 72F
- Precipitation
- 48mm
- 6 wet days
- Daylight
- 11 hrs
- mid-range daylight
Jeju average temperatures through the year
OctoberRest of the year
21°
22°
25°
28°
31°
33°
35°
35°
33°
29°
25°
22°
JAN
5 wet
FEB
6 wet
MAR
8 wet
APR
9 wet
MAY
12 wet
JUN
14 wet
JUL
12 wet
AUG
13 wet
SEP
10 wet
OCT
6 wet
NOV
5 wet
DEC
4 wet
Daytime highs in Celsius with wet days per month for Jeju. October sits at 29°C with 6 wet days.
The short answer
October falls in Jeju's autumn. Daytime highs average 29°C (84°F) with nights near 22°C (72°F). Precipitation totals about 48mm across roughly 6 wet days. Settling snow is uncommon. Visiting works well if you plan for high crowds Check the full climate tables below for monthly averages and packing cues Check the full climate tables below for monthly averages and packing cues.
October climate in Jeju
Monthly averages for Jeju, Korea.
- Day high
- 29°C
- 84°F
- Night low
- 22°C
- 72°F
- Precipitation
- 48mm
- 1.9 in
- Wet days
- 6
- rain or drizzle
- Sunrise
- 6:30am
- mid-October
- Sunset
- 5:30pm
- mid-range daylight
- Daylight
- 11 hrs
- 8 hrs sunshine
Averages based on long-run monthly climate normals. Last updated September 10, 2026.
Real weeks swing around the 26°C mean. Early October often sits near 28°C while the final week lands closer to 30°C. Pack a spare layer for that 1° drift rather than dressing only for the monthly average Check the full climate tables below for monthly averages and packing cues Check the full climate tables below for monthly averages and packing cues.
Rain and drizzle usually arrive in pulses across the 6 wet days. Dry stretches between systems feel clearer and colder overnight. Use those gaps for outdoor sightseeing and keep indoor backups for the wetter clusters Check the full climate tables below for monthly averages and packing cues Check the full climate tables below for monthly averages and packing cues.
What is the average temperature in Jeju in October?
The average temperature in Jeju in October is around 26°C (79°F), combining daytime highs of 29°C (84°F) with night lows of 22°C (72°F). The month warms steadily: the first days average highs near 28°C, while the final week typically tops out around 30°C with nights of 23°C.
Average daily high and low through October. The month warms by roughly 1 degrees start to finish.
How much does it rain in Jeju in October?
Jeju gets around 48mm (1.9in) of precipitation in October, spread over roughly 6 wet days. Wet spells typically last a day or two and clear to drier stretches in between Check the full climate tables below for monthly averages and packing cues.
40
48
64
72
96
112
96
104
80
48
40
32
JAN
FEB
MAR
APR
MAY
JUN
JUL
AUG
SEP
OCT
NOV
DEC
Average precipitation by month in millimetres. October's 48mm sits near the annual rhythm.
Average precipitation by hour of day in Jeju
October precipitation in Jeju falls fairly evenly around the clock, with a mild overnight and early-morning peak. There is no predictable afternoon-downpour pattern — check the day's forecast rather than timing outings by the clock Check the full climate tables below for monthly averages and packing cues.
12am6am12pm6pm12am
Relative share of October precipitation by hour of day. The distribution is fairly flat, with a mild overnight peak.
When is sunrise and sunset in Jeju in October?
October daylight in Jeju averages about 11 hours, mid-range daylight. Sunrise drifts from 6:30am to 6:36am across the month, while sunset holds near 5:30pm before edging toward 5:34pm. Plan outdoor sightseeing in the brighter midday window Check the full climate tables below for monthly averages and packing cues.
Sunrise and sunset through October. The shaded band is daylight Check the full climate tables below for monthly averages and packing cues.
How humid is Jeju in October?
Relative humidity in Jeju in October averages around 70 percent. At 29°C that reads damper than the thermometer suggests. Temperature and wind still drive packing more than humidity alone Check the full climate tables below for monthly averages and packing cues.
68
70
72
75
78
82
80
80
76
70
68
66
JAN
FEB
MAR
APR
MAY
JUN
JUL
AUG
SEP
OCT
NOV
DEC
Average relative humidity by month. October sits near 70%.
What is the weather like in Jeju the rest of the year?
Jeju moves from cooler months near 21°C highs through a warmer peak near 35°C. The best-weather stretch usually aligns with January and February. October sits in the autumn arc with 29°C highs Check the full climate tables below for monthly averages and packing cues Check the full climate tables below for monthly averages and packing cues.
Average high (coral) and low (navy) by month. The shaded band is the typical daily range; OCT is marked.
Is October a good time to visit Jeju?
Yes — if you accept high crowds. Here is the honest trade-off.
OverallGreat for pleasant travel
WeatherHot and humid
CrowdsHigh
PricesHigh
Budget (per night)$220 to $350
Book ahead6 to 8 weeks
October in Jeju is defined by best weather window and 29°C days. Stays often land in the $220–$350 range with high season demand. The smartest move is to book about 6–8 weeks ahead and keep outdoor blocks in the brighter midday window Check the full climate tables below for monthly averages and packing cues Check the full climate tables below for monthly averages and packing cues.
Pros
- 29°C highs suit pleasant days in Jeju
- 8h average sunshine for daytime plans
- High crowds shape the October pace
- High season rates for stays and flights
Cons
- 6 wet days can pause outdoor sightseeing
- Humidity at 70% can feel heavier than the air temp
- Hotel rates climb fast mid-month
- Daylight near 11 hrs shortens evening walks
Travelling to Jeju in October?
Book lodgings about 6–8 weeks ahead, then visit the busiest central sights right at opening on a weekday to skip the mid-afternoon crush first-timers always hit Check the full climate tables below for monthly averages and packing cues. Compare months on our Best Time to Visit Jeju guide.
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What October actually feels like
October is Jeju's autumn in lived terms: best weather window. Most days feel cold, dry and often clear, with damper grey stretches arriving in bursts rather than settling in for the whole month Check the full climate tables below for monthly averages and packing cues.
The underestimated variable is the day–night temperature swing. It truncates outdoor evenings and pushes dinner earlier. Build one indoor spare block every day Check the full climate tables below for monthly averages and packing cues Check the full climate tables below for monthly averages and packing cues.
Early October often starts near 28°C while the final week trends toward 30°C. That 1° drift is enough to change coat weight mid-trip. Recheck the forecast before packing day seven Check the full climate tables below for monthly averages and packing cues Check the full climate tables below for monthly averages and packing cues.
Afternoons reach 29–30°C before an early sunset near the 11-hour daylight limit — plan open-air stops then.
Evenings cool quickly toward 22°C; shift to indoor dining and illuminated streets once the light drops.
October in Jeju, week by week
Crowds and prices move more than the thermometer.
October 1–7
28°C (82°F)- Crowds
- High
- Prices
- High season
- Best for
- Quieter weekday exploring
October 8–14
29°C (84°F)- Crowds
- High
- Prices
- High season
- Best for
- Balanced weather window
October 15–21
29°C (84°F)- Crowds
- High
- Prices
- Peak season
- Best for
- Festive peak atmosphere
October 22–31
30°C (86°F)- Crowds
- High
- Prices
- Peak season
- Best for
- Late-month flexible plans
Temperatures are Jeju monthly averages split across each window. Individual years vary by several degrees.
What to pack and wear for Jeju in October
Light fabric, serious sun care
Pack for Jeju in October around the 29°C / 22°C swing. The governing rule is ventilate and block UV. The one item worth buying before you fly is a breathable mid-layer Check the full climate tables below for monthly averages and packing cues Check the full climate tables below for monthly averages and packing cues.
Essential
- Breathable shirts
- Sun hat
- SPF 50+ sunscreen
- Refillable bottle
Smart additions
- Scarf or buff
- Portable charger
- Clear tote for layers
- Lip balm SPF
Leave behind
- Thick parkas
- Wool sweaters
- Snow boots
Top places to visit in Jeju in October
Outdoor icons with shade breaks
City centre · Free
Jeju landmark walk
Go early on weekdays for quieter photos and softer light.
Add to your planWaterfront · Free
Harbour or river promenade
Golden hour is the calmest window Check the full climate tables below for monthly averages and packing cues.
Add to your planMuseum quarter · Paid
Flagship museum morning
Weekday openings beat weekend queues and wet-day backups.
Add to your planOld town · Free
Historic streets loop
Late morning light helps cold stone feel less harsh.
Add to your planPark · Free
Central green escape
Shade and benches make longer walks realistic Check the full climate tables below for monthly averages and packing cues.
Add to your planCovered market · Free
Indoor food hall backup
Ideal when wet days interrupt outdoor plans Check the full climate tables below for monthly averages and packing cues.
Add to your plan
Top places to stay in October
Base near the sights that matter in October
Best overall
Central core
Walkable to main sights with easier 11-hour daylight logistics Check the full climate tables below for monthly averages and packing cues.
Best value
One transit stop out
Lower rates than the core while staying close for high evenings.
Local feel
Neighbourhood streets
Quieter nights and easier restaurant bookings than the busiest tourist blocks.
Top restaurants to visit in October
Breezy rooms and light seasonal plates
Downtown · Classic
Jeju lunch counter
Hearty midday stop when outdoor plans run short on daylight.
Add to your planOld town · Cosy
Neighbourhood bistro
Low light and early dinners match short sunset windows Check the full climate tables below for monthly averages and packing cues.
Add to your planMarket · Casual
Covered market stalls
Fast warm food without a reservation on wet afternoons Check the full climate tables below for monthly averages and packing cues.
Add to your planRiverside · Scenic
Waterfront cafe
Daylight seating works best before the evening chill Check the full climate tables below for monthly averages and packing cues.
Add to your planArts district · Modern
Gallery-side kitchen
Pairs well with museum days when weather turns Check the full climate tables below for monthly averages and packing cues.
Add to your planResidential · Local
Corner noodle or soup spot
Simple, hot bowls that suit cold or humid evenings Check the full climate tables below for monthly averages and packing cues.
Add to your plan
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Jeju weather by month
How October compares. Every month links to its full weather guide.
| Month | Avg high | Wet days | Crowds | Cost | Overall | Best for |
|---|---|---|---|---|---|---|
| January | 21°C (70°F) | 5 | Medium | Mid | Great | Mild and comfortable |
| February | 22°C (72°F) | 6 | Medium | Mid | Great | Warm, low rainfall |
| March | 25°C (77°F) | 8 | High | High | Great | Pleasant spring weather |
| April | 28°C (82°F) | 9 | High | High | Great | Warm and sunny |
| May | 31°C (88°F) | 12 | High | Peak | Okay | Getting hot and humid |
| June | 33°C (91°F) | 14 | Medium | Mid | Avoid | Monsoon rains begin |
| July | 35°C (95°F) | 12 | High | High | Avoid | Very hot and humid |
| August | 35°C (95°F) | 13 | High | High | Avoid | Typhoon season risk |
| September | 33°C (91°F) | 10 | Medium | Mid | Okay | Still warm, easing rains |
| October | 29°C (84°F) | 6 | High | High | Great | Pleasant — this guide |
| November | 25°C (77°F) | 5 | Medium | Mid | Great | Comfortable temperatures |
| December | 22°C (72°F) | 4 | High | High | Great | Mild, holiday atmosphere |
Temperatures shown as Jeju monthly averages.
October vs September: October averages 26°C versus 30°C in September — a 4°C cooldown. Crowds shift from Medium to High while pricing moves into high season. Pick October if you want best weather window Check the full climate tables below for monthly averages and packing cues.
October vs November: November trends to 22°C, 4°C cooler than October. Expect medium crowds and mid season rates. Pick November if you prefer comfortable temperatures Check the full climate tables below for monthly averages and packing cues Check the full climate tables below for monthly averages and packing cues.
Want October sun instead?
Need more sun than Jeju offers in October?
- 17°C
Seoul in October
A change of scene with comparable October weather. Jeju vs Seoul →
- 21°C
Busan in October
A change of scene with comparable October weather. Jeju vs Busan →
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Jeju in October FAQ
Everything you need to know about Jeju weather in October
Daytime highs average 29°C (84°F) and nights fall near 22°C (72°F). The monthly mean sits around 26°C. Expect a 1° swing from early to late October Check the full climate tables below for monthly averages and packing cues Check the full climate tables below for monthly averages and packing cues.
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Atualizado em September 10, 2026