Measurements:
°C
°F
CURRENT WEATHER
13:14
Jeju
74°F
SE 7 mph
Feels like: 74°F
Precip: 29%
World Resorts South Korea Jeju Weather

7 Day Weather Forecast

10.19
mon
DAY
74°F
SE 7 mph
precip
29%
NIGHT
64°F
SW 9 mph
precip
39%
10.20
tue
DAY
80°F
E 2 mph
precip
17%
NIGHT
68°F
SE 13 mph
precip
67%
10.21
wed
DAY
66°F
SE 20 mph
precip
18%
NIGHT
60°F
S 13 mph
precip
6%
10.22
thu
DAY
60°F
S 16 mph
precip
2%
NIGHT
62°F
W 19 mph
precip
5%
10.23
fri
DAY
70°F
W 19 mph
precip
13%
NIGHT
66°F
W 7 mph
precip
22%
10.24
sat
DAY
72°F
W 12 mph
precip
25%
NIGHT
72°F
W 7 mph
precip
26%
10.25
sun
DAY
82°F
N 1 mph
precip
9%
NIGHT
76°F
NE 12 mph
precip
12%

Jeju Sea Water Temperature in October, °F

Select Year: 2026 2025 2024

The average sea surface temperature in October 2026 for Jeju was 23.6°F. The maximum and minimum values were 23.2°F and 24.5°F respectively.

Jeju on the Weather Map

Best Time to Visit Jeju
The most sunny months:
May 15 days
October 14 days
April 14 days
The most warm months:
August 88.3 °F
July 85.7 °F
September 80.6 °F
Warmest sea temperature:
August 84.8 °F
September 80.6 °F
July 79.6 °F
The most cold months:
January 44.2 °F
February 45.9 °F
December 48.5 °F
The most rainy months:
August 8 days
July 7 days
September 6 days
The most windy months:
January 14 mph
December 14 mph
February 14 mph
more details