World Resorts South Korea Jeju Weather

Jeju 14 Days Forecast

20.12
sat
Day
64°F
NE 4 mph
Precip.
0%
Night
52°F
SE 17 mph
Precip.
65%
21.12
sun
Day
45°F
S 21 mph
Precip.
0%
Night
41°F
S 14 mph
Precip.
0%
22.12
mon
Day
48°F
W 12 mph
Precip.
0%
Night
50°F
W 14 mph
Precip.
0%
23.12
tue
Day
59°F
N 6 mph
Precip.
86%
Night
55°F
E 21 mph
Precip.
100%
24.12
wed
Day
46°F
SE 17 mph
Precip.
0%
Night
45°F
S 15 mph
Precip.
0%
25.12
thu
Day
46°F
S 12 mph
Precip.
0%
Night
46°F
W 7 mph
Precip.
0%
26.12
fri
Day
54°F
SW 9 mph
Precip.
77%
Night
48°F
SE 12 mph
Precip.
100%
27.12
sat
Day
46°F
S 19 mph
Precip.
70%
Night
45°F
S 17 mph
Precip.
82%
28.12
sun
Day
46°F
S 7 mph
Precip.
0%
Night
43°F
SE 7 mph
Precip.
0%
29.12
mon
Day
48°F
SE 8 mph
Precip.
0%
Night
45°F
N 7 mph
Precip.
0%
30.12
tue
Day
55°F
NE 23 mph
Precip.
65%
Night
36°F
E 33 mph
Precip.
100%
31.12
wed
Day
36°F
SE 32 mph
Precip.
100%
Night
37°F
SE 31 mph
Precip.
100%
01.01
thu
Day
43°F
SE 29 mph
Precip.
67%
Night
41°F
E 17 mph
Precip.
0%
02.01
fri
Day
46°F
E 24 mph
Precip.
62%
Night
41°F
SE 25 mph
Precip.
77%

Sea water temperature in December, °F

Show year:
2025
2024
2023

The average sea water temperature in December of 2025 was 65.5°F. The highest and lowest sea temperatures during the month were 67.6°F and 63.5°F.

Sea water temperature in January, °F

Show year:
2025
2024
2023

The average sea water temperature in January of 2025 was 59.4°F. The highest and lowest sea temperatures during the month were 60.8°F and 57.6°F.

Air temperature in Jeju, °F

Precipitation total in Jeju, in.

* Charts above show average data for the last 3 years.

Best time for vacation in Jeju

Sunniest months:
May 15 days
October 14 days
April 14 days
Warmest months:
August 84.5 °F
July 82.0 °F
September 77.7 °F
Warmest sea temp:
August 81.2 °F
September 77.5 °F
July 76.6 °F
Coldest months:
January 44.8 °F
February 46.2 °F
December 48.5 °F
Rainiest months:
August 8 days
September 7 days
July 7 days
Windiest months:
January 14.4 mph
December 14.3 mph
February 14.0 mph

Jeju on a weather map

Jeju
+57°F
SE 11 mph
Feels like: +54°F
Precip.: 84%
Places in South Korea:
Name
°F
+41°F
+41°F
+46°F
+59°F
+41°F
+57°F
24 Hours Forecast
Jeju
Local time: 19:47
December 20, saturday
2100
57°F
SE
11 mph
December 21, sunday
0000
52°F
SE
17 mph
0300
48°F
SE
22 mph
0600
46°F
S
21 mph
0900
45°F
S
21 mph
1200
45°F
S
21 mph
1500
45°F
S
19 mph
1800
43°F
S
17 mph
Units of measurement: °C / °F