Cheju Sea Conditions and Tide Table

Cheju Sea Conditions table showing wave height, swell direction and period.

High and low tide times are also provided on the table along with the moon phase and forecast weather. Sunrise today is at 07:22 AM and sunset is at 05:24 PM.

Days 1–3 Weather Summary

Mostly dry. Cool air temperatures (max 16°C on Sun morning, min 6°C on Fri afternoon). Wind will be generally light.

Days 4–6 Weather Summary

Mostly dry. Cool air temperatures (max 14°C on Wed afternoon, min 6°C on Mon night). Wind will be generally light.

Days 7–9 Weather Summary

Light rain (total 4mm), mostly falling on Sat afternoon. Very mild (max 15°C on Sat afternoon, min 8°C on Sat night). Mainly fresh winds.

Days 10–12 Weather Summary

Mostly dry. Very mild (max 17°C on Tue afternoon, min 5°C on Wed morning). Winds decreasing (fresh winds from the NNW on Sun morning, calm by Mon afternoon).

Friday
5
Saturday
6
Sunday
7
Monday
8
Tuesday
9
Wednesday
10
Thursday
11
Friday
12
Saturday
13
Sunday
14
Monday
15
Tuesday
16
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
Wave Height Map
High Tide
10:47AM2.49m
9:52PM1.77m
11:53AM2.43m
10:48PM1.63m
1:02PM2.37m
00:08AM1.51m
2:10PM2.33m
1:43AM1.48m
3:12PM2.30m
3:06AM1.54m
4:06PM2.28m
4:15AM1.67m
4:53PM2.26m
5:14AM1.81m
5:35PM2.23m
6:06AM1.96m
6:12PM2.19m
6:52AM2.09m
6:46PM2.14m
7:34AM2.19m
7:18PM2.07m
8:15AM2.26m
7:49PM2.01m
Low Tide
4:41PM0.88m
4:27AM-0.02m
5:43PM1.01m
5:20AM0.11m
6:55PM1.09m
6:20AM0.26m
8:21PM1.08m
7:28AM0.41m
9:46PM0.99m
8:43AM0.52m
10:43PM0.85m
9:58AM0.58m
11:25PM0.70m
11:03AM0.62m
00:00AM0.55m
11:56AM0.65m
00:32AM0.42m
12:43PM0.68m
1:04AM0.31m
1:25PM0.72m
1:34AM0.23m
2:05PM0.76m
2:06AM0.19m
Wave
height (m) 
direction
period (s) 
1.4
NW
5
0.9
NNW
4
0.4
NNW
4
0.2
WNW
3
0.5
W
3
1.2
W
5
0.8
W
6
0.8
W
4
0.8
W
4
1.3
NW
5
1.3
NNW
5
0.9
NNW
4
0.7
NNW
4
0.6
NNW
4
0.3
NNW
3
0.1
W
4
0.1
S
5
0.1
E
2
0.2
N
2
0.4
NNW
3
0.9
NNW
5
0.6
NE
3
1.3
ENE
5
2.3
E
7
1.6
E
7
0.9
E
6
1.7
NNW
6
2
NW
6
1.9
NW
6
1.2
NNW
5
0.5
NW
4
0.3
W
5
0.2
W
4
1.2
SW
6
2
WSW
7
1.3
W
6
clear
clear
clear
clear
part cloud
clear
clear
clear
part cloud
clear
clear
clear
clear
clear
part cloud
clear
clear
part cloud
part cloud
clear
clear
clear
part cloud
part cloud
part cloud
light rain
light rain
part cloud
part cloud
clear
clear
clear
clear
part cloud
clear
part cloud
clear
clear
clear
clear
some clouds
clear
clear
clear
some clouds
clear
clear
clear
clear
clear
some clouds
clear
clear
some clouds
some clouds
clear
clear
clear
some clouds
some clouds
some clouds
light rain
light rain
some clouds
some clouds
clear
clear
clear
clear
some clouds
clear
some clouds
 km/h
25
NNW
20
NNW
5
NW
10
WSW
20
WSW
25
WSW
15
WSW
20
W
20
WNW
20
NNW
25
NNW
15
N
10
NNW
15
N
5
ENE
5
SSE
5
N
5
ESE
10
NNE
10
NNW
10
NNE
20
ENE
30
ENE
30
E
20
E
10
SW
30
NNW
35
NNW
35
NNW
20
NNW
5
NW
5
NW
10
SSE
15
SSW
30
WSW
25
NNW
 mm 
2
2
max°C
7
7
6
11
13
13
16
15
13
10
8
6
9
9
10
13
14
13
13
13
11
13
14
13
14
15
9
8
8
7
8
9
10
16
17
12
Moonrise
5:25
6:32
7:44
8:57
10:06
11:10
12:11
1:09
2:06
3:02
3:59
Moonset
7:38
8:50
9:51
10:41
11:21
11:54
12:23
12:48
1:13
1:37
2:04
2:33
Sunrise
7:22
7:22
7:24
7:24
7:24
7:26
7:26
7:26
7:28
7:28
7:28
7:30
Sunset
5:24
5:24
5:24
5:24
5:24
5:24
5:25
5:25
5:25
5:25
5:27
5:27
Today's sea temperature in Cheju is
19.8° C
(Statistics for 05 Dec 1981-2005 – mean: 17.2 max: 18.7 min: 15.9°C)
Issued (local time): 8 am Friday 05 Dec 2025
Forecast update inUpdates in  hr  min  sUpdate imminent
Nearest locationNearest