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 05:45 PM.

Days 1–4 Weather Summary

Moderate rain (total 13mm), heaviest on Sat night. Warm air temperatures (max 26°C on Thu night, min 26°C on Thu night). Mainly fresh winds.

Days 5–7 Weather Summary

Light rain (total 6mm), mostly falling on Mon morning. Warm air temperatures (max 26°C on Sun night, min 25°C on Tue night). Mainly fresh winds.

Days 8–10 Weather Summary

Moderate rain (total 15mm), heaviest on Fri afternoon. Warm (max 25°C on Wed night, min 25°C on Wed night). Mainly fresh winds.

Days 11–13 Weather Summary

Light rain (total 7mm), mostly falling on Sun night. Warm (max 25°C on Sat night, min 24°C on Sun night). Wind will be generally light.

Friday
19
Saturday
20
Sunday
21
Monday
22
Tuesday
23
Wednesday
24
Thursday
25
Friday
26
Saturday
27
Sunday
28
Monday
29
Tue
30
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
9:19AM0.29m
9:56AM0.30m
10:33AM0.30m
11:06AM0.31m
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
Low Tide
00:34AM-0.07m
1:09AM-0.07m
1:41AM-0.07m
2:09AM-0.05m
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
Wave
height (m) 
direction
period (s) 
1
NE
10
0.9
NE
9
0.9
NE
9
0.9
NE
9
0.9
ENE
9
0.9
ENE
10
0.9
NE
10
1
NE
8
0.9
NE
10
0.9
ENE
10
0.8
ENE
9
0.8
ENE
9
0.8
ENE
9
0.9
NE
9
0.9
NE
9
0.9
ENE
6
0.9
NNE
9
0.9
NNE
10
0.9
NNE
10
0.8
NNE
10
0.8
NNE
10
0.8
NNE
9
0.8
NNE
9
0.7
NE
9
0.8
NE
8
0.6
NE
8
0.6
NNE
8
0.7
NE
9
0.6
NNE
9
0.5
NE
9
0.6
NE
10
0.7
NE
7
0.6
NE
10
0.6
NE
7
0.5
NNE
9
0.5
NNE
9
clear
clear
clear
clear
rain showers
rain showers
rain showers
rain showers
thunderstorm
clear
thunderstorm
thunderstorm
clear
clear
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
clear
clear
thunderstorm
clear
clear
rain showers
rain showers
clear
part cloud
part cloud
cloud
clear
clear
clear
clear
rain shwrs
rain shwrs
rain shwrs
rain shwrs
risk tstorm
clear
risk tstorm
risk tstorm
clear
clear
risk tstorm
risk tstorm
risk tstorm
risk tstorm
risk tstorm
risk tstorm
risk tstorm
risk tstorm
risk tstorm
risk tstorm
risk tstorm
clear
clear
risk tstorm
clear
clear
rain shwrs
rain shwrs
clear
some clouds
some clouds
cloudy
 km/h
30
E
25
ENE
25
ENE
25
NE
30
ENE
30
E
30
ENE
30
ENE
25
ENE
30
ENE
25
ENE
20
ENE
25
ENE
30
ENE
30
ENE
30
ENE
25
ENE
25
ENE
25
NE
20
NE
25
NE
25
NE
25
NE
25
NNE
25
NE
25
NNE
25
NNE
25
NE
15
NE
15
NE
20
NE
25
NE
20
NE
20
ENE
20
ENE
15
E
 mm 
2
1
8
1
1
1
1
1
1
1
1
1
2
1
4
1
4
2
2
3
2
max°C
26
26
26
26
26
26
26
26
26
26
26
26
26
26
26
26
26
25
25
25
25
25
25
25
25
25
25
25
25
25
25
25
25
25
24
24
Moonrise
6:24
7:17
8:06
8:52
9:35
10:13
10:50
11:26
12:02
12:40
1:21
2:08
Moonset
5:25
6:19
7:14
8:09
9:04
9:57
10:50
11:44
12:39
1:36
2:38
Sunrise
6:43
6:45
6:45
6:46
6:46
6:47
6:47
6:48
6:48
6:48
6:48
6:48
Sunset
5:45
5:45
5:46
5:46
5:47
5:47
5:49
5:49
5:50
5:50
5:51
5:52
5:52
Today's sea temperature in Coral Harbor, Saint Johns Island is
27.9° C
(Statistics for 18 Dec 1981-2005 – mean: 26.9 max: 27.7 min: 26.0°C)
Issued (local time): 7 pm Thursday 18 Dec 2025
Forecast update inUpdates in  hr  min  sUpdate imminent
Nearest locationNearest