Porpoise Key, Big Spanish Channel Sea Conditions and Tide Table

Porpoise Key, Big Spanish Channel 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 07:03 AM and sunset is at 05:39 PM.

Days 1–3 Weather Summary

Some drizzle, heaviest during Thu night. Warm air temperatures (max 25°C on Thu morning, min 20°C on Sat morning). Wind will be generally light.

Days 4–6 Weather Summary

Mostly dry. Warm air temperatures (max 23°C on Sun morning, min 20°C on Sun night). Winds increasing (moderate winds from the ENE on Sun morning, strong winds from the ENE by Mon afternoon).

Days 7–9 Weather Summary

Mostly dry. Warm (max 23°C on Thu morning, min 21°C on Wed night). Mainly fresh winds.

Days 10–12 Weather Summary

Mostly dry. Warm (max 23°C on Sat afternoon, min 21°C on Sat morning). Mainly fresh winds.

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
1:06PM0.21m
11:46PM0.39m
1:37PM0.21m
00:25AM0.40m
2:08PM0.21m
1:05AM0.41m
2:41PM0.21m
1:46AM0.41m
3:17PM0.22m
2:27AM0.41m
3:54PM0.23m
3:11AM0.39m
4:33PM0.25m
3:58AM0.37m
5:12PM0.27m
4:51AM0.34m
5:52PM0.28m
5:54AM0.29m
6:34PM0.31m
7:11AM0.25m
7:20PM0.33m
8:44AM0.21m
8:12PM0.36m
Low Tide
4:17PM0.17m
5:50AM-0.08m
4:50PM0.16m
6:26AM-0.09m
5:23PM0.15m
7:02AM-0.08m
5:58PM0.15m
7:38AM-0.07m
6:37PM0.15m
8:15AM-0.05m
7:22PM0.15m
8:54AM-0.02m
8:15PM0.15m
9:33AM0.01m
9:18PM0.14m
10:15AM0.05m
10:32PM0.12m
10:59AM0.09m
11:51PM0.07m
11:46AM0.12m
1:08AM0.01m
12:37PM0.13m
2:16AM-0.07m
Wave
height (m) 
direction
period (s) 
0.4
SE
3
0.3
SE
2
0.1
SE
3
0.1
S
2
0.1
NW
2
0.3
NNW
2
0.3
NNE
3
0.2
ENE
2
0.3
E
2
0.4
NE
3
0.4
E
3
0.4
ENE
3
0.5
ENE
3
0.7
E
3
0.8
E
4
0.7
E
4
0.7
E
4
0.5
ENE
3
0.5
ENE
3
0.6
E
3
0.6
E
3
0.5
E
3
0.4
ESE
3
0.4
ENE
3
0.3
ENE
2
0.3
ESE
3
0.3
E
2
0.3
ENE
3
0.2
E
2
0.4
ENE
3
0.3
ENE
2
0.4
ESE
3
0.4
E
3
0.4
ENE
3
0.6
E
3
0.5
E
3
cloud
part cloud
light rain
part cloud
clear
clear
clear
clear
clear
clear
part cloud
part cloud
clear
part cloud
part cloud
clear
clear
clear
clear
clear
clear
cloud
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
part cloud
part cloud
clear
cloudy
some clouds
light rain
some clouds
clear
clear
clear
clear
clear
clear
some clouds
some clouds
clear
some clouds
some clouds
clear
clear
clear
clear
clear
clear
cloudy
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
some clouds
some clouds
some clouds
clear
 km/h
20
ESE
15
SE
10
SSE
10
WNW
15
NNW
25
N
25
NNE
20
E
20
ENE
25
NE
25
ENE
30
NE
35
NE
40
ENE
45
ENE
40
ENE
40
ENE
30
ENE
30
ENE
40
ENE
35
ENE
30
ENE
25
ENE
25
ENE
25
ENE
20
E
20
ENE
20
NE
15
E
25
ENE
25
ENE
30
E
25
ENE
25
ENE
35
ENE
30
ENE
 mm 
1
max°C
25
25
25
25
24
23
22
24
23
23
23
22
22
22
23
22
22
22
22
22
22
23
22
22
21
22
22
22
23
22
22
22
23
22
22
22
Moonrise
5:56
6:50
7:42
8:31
9:15
9:54
10:30
11:03
11:36
12:08
12:43
1:21
Moonset
4:27
5:17
6:11
7:08
8:06
9:03
10:00
10:56
11:53
12:51
1:53
Sunrise
7:03
7:03
7:03
7:05
7:05
7:05
7:05
7:07
7:07
7:07
7:07
7:07
Sunset
5:39
5:39
5:40
5:40
5:42
5:42
5:43
5:43
5:44
5:45
5:45
5:45
Today's sea temperature in Porpoise Key, Big Spanish Channel is
23.4° C
(Statistics for 18 Dec 1981-2005 – mean: 24.9 max: 26.3 min: 23.3°C)
Issued (local time): 6 am Thursday 18 Dec 2025
Forecast update inUpdates in  hr  min  sUpdate imminent
Nearest locationNearest