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Climate · Asia
South Korea · Subtropical · Volcanic island · Updated May 2026
Best months
Apr · May · Sep · Oct
Best for: Mild-shoulder-season subtropical base outside the Korean mainland's continental temperature swings.
Cells coloured by typical daytime average temperature. ★ = best months for nomads.
Jan
5°C
65%
3mm
Feb
6°C
65%
4mm
Mar
9°C
68%
5mm
Apr
13°C
70%
6mm
May
17°C
73%
7mm
Jun
21°C
78%
10mm
Jul
25°C
82%
11mm
Aug
26°C
80%
9mm
Sep
22°C
75%
7mm
Oct
17°C
68%
4mm
Nov
12°C
65%
3mm
Dec
7°C
65%
3mm
Summer peak
26°C
August · 80% humidity
Winter low
5°C
January · 65% humidity
Climate type
Subtropical · Volcanic island
Humid summers, Moderate winters
Jeju's volcanic latitude and Pacific exposure give it a subtropical climate — significantly milder than mainland Korea on both ends. Winters (Dec-Feb) stay above freezing (5-7°C); summers (Jul-Aug) hit 25-26°C with high humidity and monsoon-pattern rainfall. June through August is the wet season; September brings typhoon risk (real but historically less destructive than Japan's southern islands). Best windows are April-May and September-October.
Pathway
Digital nomad visa
Program
Korea Digital Nomad Visa (Jeju Workation)
Typical max stay
24 months
South Korea launched its F-1-D Digital Nomad / Workation Visa in 2024, piloting on Jeju Island first — 2-year max, KRW 85M/year income proof (roughly USD 60k). Standard tourist visa (90 days visa-free for most western passports) covers shorter stays.
Editorial summary, not legal advice. Verify with the relevant consulate before applying — visa programs change with little notice.
Cost of living in Jeju: ~$2,480/mo
Mid-tier monthly across rent, food, transport, utilities, and coworking.
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Editorial estimates aggregated from public climatological summaries — typical monthly averages, not forecasts. Treat as order-of-magnitude. Microclimate, altitude, and recent extreme weather can swing these values significantly.