October Jeju Hallasan autumn foliage in orange and red colours
November Jeju tangerine orchard with ripe hallabong fruit
April Jeju cherry blossom along Jeolmul road with pink flowers
May Jeju Hallasan trail with spring flowers and clear blue sky
March Jeju rapeseed yellow fields with Sanbangsan mountain backdrop
September Jeju pink muhly grass field in early autumn light
January Jeju Hallasan snow-covered peak with winter hikers
February Jeju coastal black basalt rocks with winter sea spray
June Jeju Hyupjae hydrangea coastal field with monsoon clouds
December Jeju Seongsan Ilchulbong sunrise peak with winter sea
July Jeju Hyupjae beach with white sand and turquoise summer sea
August Jeju packed beach with Korean families during summer holidays

Showing: Oct · Unsplash / Unsplash

South Korea · Asia & Oceania

Best time to visit Jeju

October

Oct scores highest overall — reliable weather and strong local atmosphere. Set your priorities below to personalise this result.

All 12 months — click any to expand

October Jeju Hallasan autumn foliage in orange and red colours

Oct

Best

Single best month — autumn foliage on Hallasan, pink muhly fields, tangerine harvest starting, clear 21C skies after typhoon season ends.

21°C

High

80mm

Rain

6h

Sun

  • Hallasan autumn foliage (danpung) peaks third week — Yeongsil trail spectacular
  • Pink muhly grass at Saryeoni and Hwasun in full neon-pink
  • First hallabong tangerines coming to market
  • Hotel rates climbing — Shilla and Lotte at autumn-peak 30% above shoulder
  • Hangeul Day and Foundation Day holiday weekends busy
  • Hallasan summit weekends require 04:00 trailhead arrival
Best
Good
Trade-off
Avoid

Top travel windows

October Jeju Hallasan autumn foliage in orange and red colours
★ Best

October

Best overall

Highest combined score

Weather
10
Value
4
Crowds
4

21°C

High

80mm

Rain

6h

Sun

January Jeju Hallasan snow-covered peak with winter hikers

January

Best for value

Lowest prices & fees

Weather
4
Value
8
Crowds
8

8°C

High

60mm

Rain

4h

Sun

January Jeju Hallasan snow-covered peak with winter hikers

January

Fewest crowds

Quietest month

Weather
4
Value
8
Crowds
8

8°C

High

60mm

Rain

4h

Sun

Breakdown by priority

Best for weather

October

21°C high · 80mm rain · 6hrs sun/day

Full breakdown →

Best for budget

January

Hotel rates 50% below August peak — Hyatt Regency and Shilla from KRW 200,000

Full breakdown →

Fewest crowds

January

Hallasan winter hiking with snow — Seongpanak and Gwaneumsa trails to 1,950m peak

Full breakdown →

Where to stay in Jeju

All neighbourhoods →
See all neighbourhoods in Jeju →

Also exploring

Worth knowing

October scores highest overall. August is the most crowded month — avoid if you can. See crowd-free ranking →

Month by month breakdown

January
#7

Gains

  • Hallasan winter hiking with snow — Seongpanak and Gwaneumsa trails to 1,950m peak
  • Hotel rates 50% below August peak — Hyatt Regency and Shilla from KRW 200,000
  • Tangerine harvest tail end — orchards still picking sweet hallabong

Sacrifices

  • Seollal (Korean Lunar New Year, late Jan/Feb): 3-5 days of family-travel disruption
  • Hallasan summit trails: only Seongpanak open, microspikes required Dec-Feb
  • Ferries from mainland cancelled 1-2 days/month due to winter storms
February
#8

Gains

  • Plum blossoms (mae-hwa) starting end-February at Hyupjae area orchards
  • Hallasan still snow-covered — clear winter peak views possible
  • Hotel rates remain at January low

Sacrifices

  • Seollal week (often falls in February): all Korea on the move, prices spike
  • Cold winds off the East China Sea — coastal walks chilly
  • Limited daylight — 4 sun hours/day
March
#5

Gains

  • Rapeseed (yuchae) yellow fields at Sanbangsan and Seongsan — peak photography
  • Cherry blossoms start late month (King Cherry, prunus yedoensis) — earliest in Korea
  • Hallasan winter trail closures lifting — Yeongsil and Eorimok reopening

Sacrifices

  • Late-March cherry weekend (last week) packs Jeju City and Seogwipo
  • Plum-rain showers — 80mm with 8 rain days
  • Temperature swings — pack layers, 12C/6C
April
#3

Gains

  • Cherry blossoms (Jeolmul, Sarabong, Jeju City roads) peak first week of April
  • Jeju Fire Festival (Saebyeol Oreum, March-April): burning of fields, Asia's largest
  • Yuchae festival fields at peak — entire valleys neon yellow

Sacrifices

  • Cherry-blossom weekend: hotel rates double, traffic on coastal roads heavy
  • Plum-rain showers continuing — 8-10 rain days
  • Pension and resort bookings need 2-3 month lead time for cherry weeks
May
#4

Gains

  • Hallasan summit trails fully open — Seongpanak and Gwaneumsa to peak crater
  • Hydrangeas (suregi) and azaleas across Saryeoni Forest
  • Buddha's Birthday lanterns at Sanbangsa and Yakcheonsa Temple

Sacrifices

  • Children's Day (May 5) and Buddha's Birthday: 3-day Korean travel surges
  • Plum-rain season properly arriving — 110mm rainfall
  • Hotel rates climbing toward summer peak
June
#9

Gains

  • Hydrangea peak at Hyupjae and Aewol cafe-belt — pink and blue clouds along coast
  • Pre-summer rates remain manageable — pensions from KRW 150,000
  • Lush green Hallasan and Saryeoni Forest — the island's prettiest tree cover

Sacrifices

  • Jangma (monsoon): 200mm rainfall, 15+ rainy days
  • Hallasan summit clouded most days
  • Coastal swimming uncomfortable in storm-churn
July
#11

Gains

  • Sea temperature 24C — first reliably swimmable month at Hyupjae and Jungmun beaches
  • Korean indie music festivals (Stepping Stone Festival) and food festivals start
  • Coastal cafe scene at Aewol full swing

Sacrifices

  • Late jangma + early typhoon — 240mm rainfall, ferry cancellations possible
  • Pension rates climbing as Korean school break starts
  • Tropical 28C/23C with 84% humidity
August
#12

Gains

  • Domestic vacation energy at Hyupjae, Jungmun, Geumneung beaches
  • Sea at year-warmest 25C — best swimming and snorkeling at Udo island
  • Major food and music festivals across the island

Sacrifices

  • Hotel rates at peak — Shilla Jeju and Hyatt Regency from KRW 500,000+
  • Typhoon risk highest — 2-3 named storms possible, ferry/flight disruption
  • Pensions and resort cottages booked 3-4 months ahead
September
#6

Gains

  • Sea still 24C — warmest swimming after the crowds clear
  • Hotel rates 40% below August peak after first week
  • Pink muhly grass starting at Saryeoni and Hwasun

Sacrifices

  • Chuseok (Korean Thanksgiving, often Sep): 5-day family-travel disruption
  • Active typhoon season — 1-2 storms can hit hard
  • Plum-rain tail showers continuing
October
#1

Gains

  • Hallasan autumn foliage (danpung) peaks third week — Yeongsil trail spectacular
  • Pink muhly grass at Saryeoni and Hwasun in full neon-pink
  • First hallabong tangerines coming to market

Sacrifices

  • Hotel rates climbing — Shilla and Lotte at autumn-peak 30% above shoulder
  • Hangeul Day and Foundation Day holiday weekends busy
  • Hallasan summit weekends require 04:00 trailhead arrival
November
#2

Gains

  • Hallabong and Cheonhyehyang tangerine harvest peak — pick-your-own at orchards
  • Hotel rates 40% below October — KRW 200,000 boutique pensions
  • Late foliage on lower slopes — coastal cafe terraces still warm

Sacrifices

  • Hallasan upper trails getting cold — fleece needed
  • Some seasonal cafes and beach restaurants closing for winter
  • Coastal swimming over for the year
December
#10

Gains

  • Hallasan first snow — Seongpanak trail genuinely white by mid-month
  • Sunrise peak Seongsan Ilchulbong for New Year's sunrise tradition
  • Hotel rates at year-low — Hyatt and Shilla from KRW 220,000

Sacrifices

  • Cold 10C/4C with East China Sea wind — coastal walks chilly
  • NYE sunrise crowds at Seongsan Ilchulbong (Dec 31 → Jan 1)
  • Many smaller pensions closing for renovation

How this is calculated

Climate data

Open Meteo ERA5

30-year normals (1991–2020). Temperature, rainfall, sunshine, humidity.

Price & crowd

Tourism research

Seasonal pricing from tourism authority data. Directional — compares months within a destination only.

Personalisation

Weighted scoring

Your priorities change the weights. Budget-first users get different results than weather-first users.

Full methodology →

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October is the best time to visit Jeju

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