When to go
The Best Time to Visit Jeju
Month-by-month climate data for Jeju, South Korea — daily highs and lows, rain days, and an honest verdict for every month of the year.
April–June, September–October. Cherry blossoms and canola fields in April; clear hiking weather in autumn. Summer brings beach season and the yearly typhoon watch.
Warmest in Jeju: Aug (30°C / 86°F) · Coolest: Jan (8°C / 46°F) · Wettest: Jul (~20 rain days)
Daily highs / lows in °C · bars show rain days per month · ERA5 climate normals (2020–2024)
Jeju climate, month by month
January
8° / 3°C
~16 rain days
Tough
February
10° / 4°C
~14 rain days
Fair
March
14° / 7°C
~13 rain days
Good
April
17° / 11°C
~10 rain days
Excellent
May
22° / 15°C
~11 rain days
Excellent
June
25° / 20°C
~14 rain days
Good
July
29° / 24°C
~20 rain days
Good
August
30° / 25°C
~19 rain days
Fair
September
26° / 22°C
~18 rain days
Good
October
21° / 16°C
~10 rain days
Excellent
November
16° / 11°C
~12 rain days
Good
December
9° / 5°C
~15 rain days
Fair
Plan around it
Dates locked in? Start from the Jeju travel guide or jump straight to a 3-day, 5-day or 7-day itinerary.