01.01
thu
thu
Day
36°F
S 17 mph
Precip.
67%
67%
Night
37°F
SE 19 mph
Precip.
100%
100%
02.01
fri
fri
Day
37°F
SE 26 mph
Precip.
100%
100%
Night
39°F
SE 22 mph
Precip.
87%
87%
03.01
sat
sat
Day
45°F
SE 17 mph
Precip.
0%
0%
Night
41°F
SE 14 mph
Precip.
87%
87%
04.01
sun
sun
Day
48°F
E 14 mph
Precip.
0%
0%
Night
45°F
SE 14 mph
Precip.
0%
0%
05.01
mon
mon
Day
46°F
SE 15 mph
Precip.
0%
0%
Night
41°F
SE 10 mph
Precip.
0%
0%
06.01
tue
tue
Day
45°F
SE 12 mph
Precip.
0%
0%
Night
46°F
SE 22 mph
Precip.
100%
100%
07.01
wed
wed
Day
39°F
SE 34 mph
Precip.
100%
100%
Night
39°F
SE 25 mph
Precip.
89%
89%
08.01
thu
thu
Day
46°F
E 20 mph
Precip.
0%
0%
Night
41°F
E 19 mph
Precip.
0%
0%
09.01
fri
fri
Day
52°F
E 21 mph
Precip.
0%
0%
Night
46°F
E 22 mph
Precip.
0%
0%
10.01
sat
sat
Day
46°F
SE 24 mph
Precip.
0%
0%
Night
39°F
S 7 mph
Precip.
0%
0%
11.01
sun
sun
Day
45°F
SW 4 mph
Precip.
0%
0%
Night
41°F
N 4 mph
Precip.
0%
0%
12.01
mon
mon
Day
54°F
N 3 mph
Precip.
0%
0%
Night
48°F
N 7 mph
Precip.
78%
78%
13.01
tue
tue
Day
46°F
SE 16 mph
Precip.
100%
100%
Night
36°F
S 20 mph
Precip.
82%
82%
14.01
wed
wed
Day
36°F
S 17 mph
Precip.
79%
79%
Night
36°F
S 16 mph
Precip.
100%
100%
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: 18:08
January 01, thursday
2100
39°F
SE
19 mph
19 mph
January 02, friday
0000
37°F
SE
19 mph
19 mph
0300
37°F
SE
26 mph
26 mph
0600
34°F
SE
27 mph
27 mph
0900
36°F
SE
28 mph
28 mph
1200
37°F
SE
26 mph
26 mph
1500
37°F
SE
25 mph
25 mph
1800
37°F
SE
24 mph
24 mph
