Coral Harbor, Saint Johns Island Sea Conditions and Tide Table

Coral Harbor, Saint Johns Island 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 — and sunset is at 05:47 PM.

Days 1–4 Weather Summary

Light rain (total 3mm), mostly falling on Mon night. Warm air temperatures (max 26°C on Mon night, min 25°C on Wed afternoon). Mainly fresh winds.

Days 5–7 Weather Summary

Light rain (total 2mm), mostly falling on Thu night. Warm air temperatures (max 25°C on Thu night, min 24°C on Thu night). Wind will be generally light.

Days 8–10 Weather Summary

Mostly dry. Warm (max 26°C on Tue afternoon, min 25°C on Sun night). Wind will be generally light.

Days 11–13 Weather Summary

Light rain (total 9mm), mostly falling on Wed night. Warm (max 26°C on Thu afternoon, min 25°C on Wed night). Wind will be generally light.

Tuesday
23
Wednesday
24
Thursday
25
Friday
26
Saturday
27
Sunday
28
Monday
29
Tuesday
30
Wednesday
31
Thursday
1
Friday
2
Sat
3
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
AM
PM
Wave Height Map
High Tide
11:38AM0.31m
12:06PM0.30m
11:08PM0.08m
12:31PM0.28m
00:57AM0.11m
12:50PM0.25m
3:05AM0.15m
1:06PM0.21m
4:30AM0.20m
1:16PM0.17m
5:28AM0.24m
6:21AM0.28m
7:13AM0.31m
8:03AM0.32m
8:53AM0.33m
9:40AM0.33m
Low Tide
2:35AM-0.03m
3:03AM-0.00m
8:44PM0.07m
8:50PM0.06m
8:50PM0.04m
7:30AM0.13m
8:57PM0.01m
9:50AM0.15m
9:17PM-0.03m
9:45PM-0.07m
10:21PM-0.10m
11:02PM-0.12m
11:55PM-0.14m
00:50AM-0.13m
Wave
height (m) 
direction
period (s) 
0.8
ENE
9
0.9
ENE
4
0.9
ENE
4
1
ENE
5
1.1
NE
9
1
NE
10
1.1
NE
10
1
NNE
7
0.9
NNE
9
0.9
NE
9
0.8
NE
9
0.7
NE
10
0.8
NNE
10
0.8
NNE
10
0.7
NE
10
0.7
NE
10
0.6
NNE
10
0.5
NE
10
0.5
NE
9
0.5
NE
9
0.4
NE
9
0.4
NE
8
0.4
NE
9
0.4
NE
9
0.4
NE
9
0.5
N
9
0.6
NNW
12
0.8
NNW
8
0.9
NNW
8
0.7
NNW
8
0.7
NNW
8
0.6
NNW
9
0.6
N
9
0.7
NE
6
0.7
NE
6
0.8
NE
6
thunderstorm
clear
clear
thunderstorm
clear
clear
thunderstorm
clear
clear
rain showers
clear
clear
clear
rain showers
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
thunderstorm
part cloud
part cloud
rain showers
clear
thunderstorm
thunderstorm
thunderstorm
clear
risk tstorm
clear
clear
risk tstorm
clear
clear
risk tstorm
clear
clear
rain shwrs
clear
clear
clear
rain shwrs
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
some clouds
risk tstorm
some clouds
some clouds
rain shwrs
clear
risk tstorm
risk tstorm
risk tstorm
clear
 km/h
25
ENE
30
ENE
30
ENE
30
ENE
30
ENE
25
NE
30
NE
30
NE
30
NNE
30
NE
20
ENE
20
NE
25
ENE
20
ENE
20
ENE
15
ENE
15
E
15
ENE
20
E
15
ESE
10
ESE
10
E
15
ESE
10
SE
10
E
15
E
15
ENE
20
ENE
20
ENE
15
ENE
15
ENE
20
ENE
20
ENE
25
E
25
E
25
E
 mm 
1
1
1
1
1
1
2
2
3
1
max°C
26
26
26
26
26
26
26
25
25
25
25
25
25
25
25
25
25
25
25
25
25
25
25
26
26
25
25
25
25
26
25
25
25
25
25
26
Moonrise
9:35
10:13
10:50
11:26
12:02
12:40
1:21
2:08
3:03
4:04
5:11
6:20
Moonset
9:04
9:57
10:50
11:44
12:39
1:36
2:38
3:44
4:53
6:01
7:05
Sunrise
6:46
6:47
6:47
6:48
6:48
6:48
6:48
6:48
6:50
6:50
6:50
6:50
Sunset
5:47
5:47
5:49
5:49
5:50
5:50
5:51
5:52
5:52
5:52
5:52
5:53
5:54
Today's sea temperature in Coral Harbor, Saint Johns Island is
27.8° C
(Statistics for 22 Dec 1981-2005 – mean: 26.8 max: 27.7 min: 26.0°C)
Issued (local time): 7 pm Monday 22 Dec 2025
Forecast update inUpdates in  hr  min  sUpdate imminent
Nearest locationNearest