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 — and sunset is at 07:59 PM.

Days 1–4 Weather Summary

Light rain (total 7mm), mostly falling on Sun morning. Warm air temperatures (max 27°C on Thu night, min 26°C on Thu night). Wind will be generally light.

Days 5–7 Weather Summary

Moderate rain (total 11mm), heaviest on Sun night. Warm air temperatures (max 27°C on Sun night, min 26°C on Tue night). Mainly fresh winds.

Days 8–10 Weather Summary

Mostly dry. Warm (max 27°C on Wed night, min 26°C on Thu night). Mainly fresh winds.

Days 11–13 Weather Summary

Light rain (total 5mm), mostly falling on Mon afternoon. Warm (max 28°C on Sun afternoon, min 26°C on Mon night). Winds decreasing (fresh winds from the E on Sun night, light winds from the ESE by Tue night).

Days 14–17 Weather Summary

Moderate rain (total 10mm), heaviest on Wed night. Warm (max 28°C on Wed afternoon, min 26°C on Tue night). Wind will be generally light.

Friday
15
Saturday
16
Sunday
17
Monday
18
Tuesday
19
Wednesday
20
Thursday
21
Friday
22
Saturday
23
Sunday
24
Monday
25
Tuesday
26
Wednesday
27
Thursday
28
Friday
29
Sat
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
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
Wave Height Map
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High Tide
3:21AM0.28m
2:42PM0.47m
4:18AM0.27m
3:27PM0.51m
5:10AM0.26m
4:14PM0.54m
5:59AM0.24m
5:03PM0.55m
6:46AM0.23m
5:54PM0.53m
7:35AM0.22m
6:46PM0.50m
8:26AM0.21m
7:41PM0.45m
9:23AM0.22m
8:40PM0.40m
10:25AM0.25m
9:44PM0.34m
11:27AM0.28m
11:00PM0.29m
12:14PM0.31m
1:11AM0.25m
12:49PM0.35m
3:10AM0.24m
1:21PM0.38m
4:09AM0.24m
1:55PM0.41m
Low Tide
9:27PM-0.05m
8:55AM0.12m
10:15PM-0.10m
9:28AM0.13m
11:03PM-0.13m
10:04AM0.13m
11:54PM-0.13m
10:43AM0.13m
00:48AM-0.12m
11:27AM0.13m
1:44AM-0.10m
12:21PM0.14m
2:42AM-0.06m
1:37PM0.15m
3:41AM-0.03m
3:11PM0.15m
4:37AM0.01m
4:41PM0.13m
5:30AM0.04m
5:58PM0.10m
6:18AM0.06m
7:04PM0.06m
7:03AM0.09m
8:01PM0.02m
7:46AM0.11m
8:51PM-0.01m
8:26AM0.12m
Wave
Height (m)
Direction
Period (s)
0.2
WNW
2
0.1
NW
2
0.1
W
3
0
W
3
0.3
E
2
0.3
ESE
3
0.5
E
3
0.5
E
3
0.5
E
3
0.6
E
3
0.6
ESE
3
0.6
ESE
3
0.6
E
3
0.5
E
3
0.5
E
3
0.5
ESE
3
0.5
ESE
3
0.5
ESE
3
0.7
ESE
3
0.5
ESE
3
0.4
ESE
3
0.5
ESE
3
0.3
ESE
3
0.2
ESE
2
0.3
ESE
2
0.2
E
2
0.2
E
2
0.3
E
3
0.4
E
3
0.4
ESE
3
0.7
E
3
0.5
E
3
0.5
E
3
0.6
ESE
3
0.4
ESE
3
0.3
ESE
3
0.4
ENE
3
0.2
ENE
2
0.1
NE
2
0.1
N
2
0.2
WNW
2
0.3
WNW
2
0.2
W
2
0.1
W
2
0.2
WSW
2
0.1
W
2
0
W
3
clear
clear
clear
clear
clear
thunderstorm
rain showers
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
clear
thunderstorm
clear
rain showers
thunderstorm
clear
clear
clear
part cloud
clear
part cloud
part cloud
clear
clear
clear
clear
part cloud
clear
part cloud
clear
thunderstorm
rain showers
thunderstorm
part cloud
rain showers
thunderstorm
clear
thunderstorm
thunderstorm
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
risk tstorm
rain shwrs
risk tstorm
risk tstorm
risk tstorm
risk tstorm
risk tstorm
clear
risk tstorm
clear
rain shwrs
risk tstorm
clear
clear
clear
some clouds
clear
some clouds
some clouds
clear
clear
clear
clear
some clouds
clear
some clouds
clear
risk tstorm
rain shwrs
risk tstorm
some clouds
rain shwrs
risk tstorm
clear
risk tstorm
risk tstorm
clear
clear
clear
clear
clear
clear
km/h
15
NW
10
NW
15
WSW
10
ESE
20
E
25
ESE
25
E
25
E
25
E
30
E
30
E
30
E
30
E
25
ESE
25
E
30
ESE
20
ESE
25
E
30
ESE
20
ESE
20
E
30
E
15
ESE
10
SE
20
E
10
E
15
ESE
20
E
20
E
25
E
35
E
20
E
25
ESE
30
ESE
15
SE
15
ESE
25
ENE
10
NNE
5
NW
5
S
15
NW
20
W
15
WNW
10
WNW
20
WSW
10
WNW
5
SW
1
1
4
1
3
3
1
2
1
1
2
1
2
4
2
3
1
max °C
27
26
27
27
27
27
27
27
27
27
27
27
27
27
27
27
27
27
27
27
27
27
27
27
27
27
27
27
27
28
28
28
27
27
27
27
27
27
28
28
27
28
27
26
27
27
27
Moonrise
5:21
6:07
7:01
8:04
9:12
10:21
11:29
12:32
1:31
2:27
3:21
4:15
5:08
6:02
6:57
Moonset
7:02
8:13
9:26
10:34
11:35
12:27
1:11
1:49
2:22
2:53
3:24
3:55
4:27
5:03
5:42
Sunrise
6:39
6:39
6:39
6:37
6:37
6:37
6:37
6:37
6:35
6:35
6:35
6:35
6:35
6:35
6:35
6:33
Sunset
7:59
8:00
8:00
8:00
8:00
8:01
8:01
8:02
8:02
8:04
8:04
8:05
8:05
8:06
8:06
8:07
Today's sea temperature in Grassy Key (North) is
29.5° C
(Statistics for 14 May 1981-2005 – mean: 26.7 max: 28.1 min: 25.2°C)
Issued (local time): 7 pm Thursday 14 May 2026
Forecast update inUpdates in  hr  min  sUpdate imminent
Nearest locationNearest