20.12
sat
sat
Day

64°F
NE 4 mph
Precip.
0%
0%
Night

52°F
SE 17 mph
Precip.
65%
65%
21.12
sun
sun
Day

45°F
S 21 mph
Precip.
0%
0%
Night

41°F
S 14 mph
Precip.
0%
0%
22.12
mon
mon
Day

48°F
W 12 mph
Precip.
0%
0%
Night

50°F
W 14 mph
Precip.
0%
0%
23.12
tue
tue
Day

59°F
N 6 mph
Precip.
86%
86%
Night

55°F
E 21 mph
Precip.
100%
100%
24.12
wed
wed
Day

46°F
SE 17 mph
Precip.
0%
0%
Night

45°F
S 15 mph
Precip.
0%
0%
25.12
thu
thu
Day

46°F
S 12 mph
Precip.
0%
0%
Night

46°F
W 7 mph
Precip.
0%
0%
26.12
fri
fri
Day

54°F
SW 9 mph
Precip.
77%
77%
Night

48°F
SE 12 mph
Precip.
100%
100%
27.12
sat
sat
Day

46°F
S 19 mph
Precip.
70%
70%
Night

45°F
S 17 mph
Precip.
82%
82%
28.12
sun
sun
Day

46°F
S 7 mph
Precip.
0%
0%
Night

43°F
SE 7 mph
Precip.
0%
0%
29.12
mon
mon
Day

48°F
SE 8 mph
Precip.
0%
0%
Night

45°F
N 7 mph
Precip.
0%
0%
30.12
tue
tue
Day

55°F
NE 23 mph
Precip.
65%
65%
Night

36°F
E 33 mph
Precip.
100%
100%
31.12
wed
wed
Day

36°F
SE 32 mph
Precip.
100%
100%
Night

37°F
SE 31 mph
Precip.
100%
100%
01.01
thu
thu
Day

43°F
SE 29 mph
Precip.
67%
67%
Night

41°F
E 17 mph
Precip.
0%
0%
02.01
fri
fri
Day

46°F
E 24 mph
Precip.
62%
62%
Night

41°F
SE 25 mph
Precip.
77%
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
Jeju on a weather map
Places in South Korea:
Name
°F
24 Hours Forecast
Jeju
Local time: 19:47
December 20, saturday
2100

57°F
SE
11 mph
11 mph
December 21, sunday
0000

52°F
SE
17 mph
17 mph
0300

48°F
SE
22 mph
22 mph
0600

46°F
S
21 mph
21 mph
0900

45°F
S
21 mph
21 mph
1200

45°F
S
21 mph
21 mph
1500

45°F
S
19 mph
19 mph
1800

43°F
S
17 mph
17 mph


























