Grassy Key (North) Sea Conditions and Tide Table

Grassy Key (North) 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 06:35 AM and sunset is at 05:38 PM.

Days 1–3 Weather Summary

Light rain (total 4mm), mostly falling on Sun morning. Warm air temperatures (max 26°C on Fri night, min 20°C on Mon afternoon). Winds increasing (calm on Sun afternoon, strong winds from the NNW by Mon afternoon).

Days 4–6 Weather Summary

Mostly dry. Warm air temperatures (max 23°C on Wed morning, min 12°C on Mon night). Winds decreasing (strong winds from the N on Mon night, light winds from the NE by Wed night).

Days 7–9 Weather Summary

Mostly dry. Warm (max 25°C on Sun afternoon, min 21°C on Thu night). Mainly fresh winds.

Days 10–12 Weather Summary

Mostly dry. Warm (max 25°C on Sun night, min 24°C on Mon night). Mainly fresh winds.

Saturday
8
Sunday
9
Monday
10
Tuesday
11
Wednesday
12
Thursday
13
Friday
14
Saturday
15
Sunday
16
Monday
17
Tuesday
18
Wed
19
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
6:00PM0.31m
5:16AM0.60m
6:49PM0.29m
6:09AM0.56m
7:44PM0.27m
7:06AM0.51m
8:55PM0.28m
8:08AM0.46m
11:53PM0.30m
9:20AM0.41m
00:26AM0.33m
10:55AM0.37m
00:35AM0.36m
1:14PM0.35m
00:33AM0.39m
2:18PM0.34m
00:50AM0.43m
2:58PM0.34m
1:19AM0.45m
3:17PM0.33m
1:51AM0.48m
3:29PM0.32m
Low Tide
12:10PM-0.02m
10:51PM0.21m
1:10PM0.01m
11:42PM0.22m
2:14PM0.05m
1:03AM0.23m
3:18PM0.08m
2:46AM0.23m
4:19PM0.10m
4:14AM0.21m
5:12PM0.12m
5:27AM0.18m
6:00PM0.14m
6:28AM0.13m
6:42PM0.16m
7:21AM0.09m
7:21PM0.17m
8:07AM0.06m
7:58PM0.18m
8:50AM0.04m
8:32PM0.20m
9:30AM0.02m
Wave
height (m) 
direction
period (s) 
0.1
E
2.0
0
E
2.0
0.1
E
2.0
0.1
SE
2.0
0.1
SE
3.0
0.1
N
2.0
0.3
NW
2.0
0.8
NW
4.0
0.8
N
4.0
0.8
NNE
4.0
0.6
NE
3.0
0.6
E
3.0
0.5
E
3.0
0.4
ENE
3.0
0.4
ENE
3.0
0.5
NE
3.0
0.5
E
3.0
0.4
NE
3.0
0.4
NE
3.0
0.3
ENE
3.0
0.4
NE
3.0
0.5
NE
3.0
0.5
E
3.0
0.5
E
3.0
0.4
ESE
3.0
0.3
ESE
3.0
0.4
SE
3.0
0.4
ESE
3.0
0.4
ESE
3.0
0.4
ESE
3.0
0.5
E
3.0
0.6
E
3.0
0.7
E
3.0
0.8
E
3.0
0.8
E
3.0
clear
clear
rain showers
thunderstorm
clear
clear
part cloud
part cloud
clear
clear
clear
part cloud
cloud
part cloud
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
part cloud
part cloud
part cloud
clear
part cloud
part cloud
clear
part cloud
part cloud
part cloud
clear
clear
clear
rain shwrs
risk tstorm
clear
clear
some clouds
some clouds
clear
clear
clear
some clouds
cloudy
some clouds
some clouds
clear
clear
clear
clear
clear
clear
clear
clear
some clouds
some clouds
some clouds
some clouds
clear
some clouds
some clouds
clear
some clouds
some clouds
some clouds
clear
 km/h
5
E
10
E
10
ESE
10
SSE
5
SSW
10
WNW
20
NW
45
NW
40
N
40
NNE
35
NE
30
ENE
25
ENE
25
ENE
20
NE
30
NNE
30
ENE
25
NNE
25
NNE
20
NE
25
NNE
30
NNE
30
ENE
25
E
20
E
20
E
20
SE
25
E
25
E
20
E
25
E
30
ENE
30
E
35
E
35
E
 mm 
1
3
max°C
26
26
26
26
26
25
25
21
17
17
20
22
23
23
23
23
23
23
22
24
24
24
24
24
24
25
25
25
25
25
25
24
24
24
24
Moonrise
8:42
9:50
10:55
11:57
12:54
1:48
2:41
3:32
4:23
5:16
6:10
Moonset
10:08
11:08
12:00
12:43
1:20
1:53
2:23
2:52
3:21
3:52
4:25
5:01
Sunrise
6:35
6:35
6:35
6:37
6:37
6:37
6:39
6:39
6:39
6:41
6:41
6:41
Sunset
5:38
5:37
5:37
5:37
5:37
5:37
5:36
5:36
5:36
5:35
5:35
5:35
Today's sea temperature in Grassy Key (North) is 26.6 °C (Statistics for 08 Nov 1981-2005 – mean: 26.5 max: 27.5 min: 25.1°C)
Issued (local time): 12 am Saturday 08 Nov 2025
Forecast update inUpdates in  hr  min  sUpdate imminent
Nearest