Jeju · Month comparison

October vs August

October ranks #1 overall vs August at #12. Single best month — autumn foliage on Hallasan, pink muhly fields, tangerine harvest starting, clear 21C skies after typhoon season ends.

October Jeju Hallasan autumn foliage in orange and red colours

October

#1 of 12 months

Best match

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

  • ↑Hallasan autumn foliage (danpung) peaks third week — Yeongsil trail spectacular
  • ↑Pink muhly grass at Saryeoni and Hwasun in full neon-pink
August Jeju packed beach with Korean families during summer holidays

August

#12 of 12 months

Worth considering

Korean domestic summer absolute peak — entire country on vacation, hotel rates doubled, every beach packed, typhoon risk highest.

  • ↑Domestic vacation energy at Hyupjae, Jungmun, Geumneung beaches
  • ↑Sea at year-warmest 25C — best swimming and snorkeling at Udo island
FactorOctoberAugust
Weather score
10
5
Value score
4
1
Crowd score
4
1
Events score
9
7
Atmosphere
10
8
Avg high temp21°C30°C
Monthly rain80mm270mm
Daily sunshine6hrs6hrs

October trade-offs

  • ↓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

August trade-offs

  • ↓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
See all 12 months for Jeju →October in detail →August in detail →
Scores compare months within Jeju. Climate data: Open Meteo ERA5 30-year normals (1991–2020). Methodology →