Jeju · Month comparison

December vs October

October ranks #1 overall vs December at #10. Single best month — autumn foliage on Hallasan, pink muhly fields, tangerine harvest starting, clear 21C skies after typhoon season ends.

December Jeju Seongsan Ilchulbong sunrise peak with winter sea

December

#10 of 12 months

Strong option

Winter properly arrives — Hallasan snowing, coastal cafe heaters lit, NYE on the island for those who want a quiet retreat.

  • ↑Hallasan first snow — Seongpanak trail genuinely white by mid-month
  • ↑Sunrise peak Seongsan Ilchulbong for New Year's sunrise tradition
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
FactorDecemberOctober
Weather score
5
10
Value score
7
4
Crowd score
6
4
Events score
6
9
Atmosphere
7
10
Avg high temp10°C21°C
Monthly rain50mm80mm
Daily sunshine4hrs6hrs

December trade-offs

  • ↓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

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