Key Biscayne Sea Conditions and Tide Table

Key Biscayne 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 07:01 AM and sunset is at 05:32 PM.

Days 1–3 Weather Summary

Mostly dry. Warm air temperatures (max 28°C on Fri morning, min 22°C on Fri night). Wind will be generally light.

Days 4–6 Weather Summary

Light rain (total 2mm), mostly falling on Mon night. Warm air temperatures (max 24°C on Sun morning, min 22°C on Sun night). Mainly fresh winds.

Days 7–9 Weather Summary

Mostly dry. Warm (max 23°C on Wed morning, min 21°C on Thu night). Winds decreasing (fresh winds from the ENE on Wed morning, light winds from the ENE by Fri night).

Days 10–12 Weather Summary

Light rain (total 4mm), mostly falling on Sun night. Warm (max 23°C on Sat morning, min 22°C on Sat morning). Wind will be generally light.

Thursday
18
Friday
19
Saturday
20
Sunday
21
Monday
22
Tuesday
23
Wednesday
24
Thursday
25
Friday
26
Saturday
27
Sunday
28
Monday
29
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
8:22AM0.65m
8:13PM0.59m
9:00AM0.66m
8:52PM0.59m
9:37AM0.66m
9:30PM0.59m
10:14AM0.66m
10:10PM0.59m
10:51AM0.64m
10:51PM0.58m
11:29AM0.63m
11:35PM0.58m
12:09PM0.62m
00:23AM0.57m
12:52PM0.60m
1:16AM0.57m
1:39PM0.59m
2:15AM0.58m
2:31PM0.59m
3:18AM0.59m
3:29PM0.59m
4:23AM0.61m
4:29PM0.59m
5:27AM0.63m
Low Tide
3:01PM0.16m
3:05AM0.02m
3:40PM0.14m
3:43AM0.01m
4:18PM0.14m
4:21AM0.01m
4:55PM0.13m
5:00AM0.02m
5:33PM0.12m
5:40AM0.03m
6:13PM0.11m
6:23AM0.05m
6:55PM0.10m
7:09AM0.07m
7:42PM0.09m
8:00AM0.09m
8:33PM0.06m
8:57AM0.10m
9:29PM0.04m
9:59AM0.11m
10:29PM0.01m
11:04AM0.11m
11:30PM-0.03m
Wave
height (m) 
direction
period (s) 
0.8
E
4
0.6
E
4
0.3
ESE
4
0.2
ESE
4
0.1
SE
3
0.4
NW
2
0.4
N
3
0.4
ENE
4
0.5
ENE
4
0.5
ENE
4
0.7
NE
4
0.8
ENE
4
1.3
ENE
5
1.5
ENE
6
1.9
ENE
7
1.8
ENE
7
1.4
ENE
6
1.2
ENE
6
1.1
ENE
5
1.1
ENE
5
1.1
ENE
5
0.7
ENE
5
0.8
ENE
4
0.8
ENE
4
0.6
ENE
4
0.5
ENE
4
0.4
ENE
4
0.4
E
3
0.4
ENE
3
0.4
ENE
3
0.5
ENE
4
0.5
ENE
4
0.6
ENE
4
1
ENE
5
0.9
ENE
5
0.8
ENE
4
part cloud
part cloud
part cloud
part cloud
part cloud
clear
clear
clear
clear
clear
clear
clear
part cloud
part cloud
rain showers
cloud
cloud
part cloud
part cloud
clear
part cloud
clear
cloud
part cloud
part cloud
clear
part cloud
clear
clear
clear
clear
clear
light rain
part cloud
cloud
part cloud
some clouds
some clouds
some clouds
some clouds
some clouds
clear
clear
clear
clear
clear
clear
clear
some clouds
some clouds
rain shwrs
cloudy
cloudy
some clouds
some clouds
clear
some clouds
clear
cloudy
some clouds
some clouds
clear
some clouds
clear
clear
clear
clear
clear
light rain
some clouds
cloudy
some clouds
 km/h
25
SE
15
SE
10
S
15
W
10
SW
20
NNW
15
NNE
15
ENE
15
E
20
NE
25
NE
25
NE
35
NE
35
ENE
40
ENE
35
ENE
30
ENE
25
ENE
30
ENE
30
ENE
25
ENE
20
ENE
25
ENE
20
ENE
20
ENE
15
E
10
E
15
NE
20
ENE
15
ENE
20
ENE
20
ENE
15
ENE
25
ENE
25
ENE
20
E
 mm 
2
4
max°C
24
24
24
28
28
26
25
24
24
24
23
22
23
23
23
23
23
23
23
23
23
23
23
23
23
23
23
23
22
22
23
23
23
22
22
23
Moonrise
5:54
6:48
7:41
8:29
9:12
9:51
10:27
10:59
11:31
12:03
12:37
1:15
Moonset
4:20
5:10
6:04
7:01
7:59
8:57
9:54
10:51
11:48
12:47
1:50
Sunrise
7:01
7:01
7:01
7:03
7:03
7:03
7:03
7:03
7:05
7:05
7:05
7:05
Sunset
5:32
5:34
5:34
5:35
5:35
5:36
5:36
5:37
5:37
5:37
5:38
5:38
Today's sea temperature in Key Biscayne is
24.4° C
(Statistics for 18 Dec 1981-2005 – mean: 24.5 max: 25.9 min: 22.2°C)
Issued (local time): 6 am Thursday 18 Dec 2025
Forecast update inUpdates in  hr  min  sUpdate imminent
Nearest locationNearest