Jeju · Month comparison

June vs October

October ranks #1 overall vs June at #9. Single best month — autumn foliage on Hallasan, pink muhly fields, tangerine harvest starting, clear 21C skies after typhoon season ends.

June Jeju Hyupjae hydrangea coastal field with monsoon clouds

June

#9 of 12 months

Strong option

Jangma (Korean monsoon) — heaviest rainy season, but pre-school-holiday quiet means decent rates and uncrowded coastal cafes.

  • ↑Hydrangea peak at Hyupjae and Aewol cafe-belt — pink and blue clouds along coast
  • ↑Pre-summer rates remain manageable — pensions from KRW 150,000
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
FactorJuneOctober
Weather score
6
10
Value score
6
4
Crowd score
5
4
Events score
6
9
Atmosphere
8
10
Avg high temp24°C21°C
Monthly rain200mm80mm
Daily sunshine6hrs6hrs

June trade-offs

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

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