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 06:46 AM and sunset is at 08:15 PM.

Days 1–3 Weather Summary

Light rain (total 2mm), mostly falling on Thu afternoon. Warm air temperatures (max 29°C on Thu afternoon, min 28°C on Thu morning). Mainly fresh winds.

Days 4–6 Weather Summary

Some drizzle, heaviest during Tue night. Warm air temperatures (max 28°C on Sun morning, min 28°C on Sun morning). Wind will be generally light.

Days 7–9 Weather Summary

Mostly dry. Warm (max 29°C on Thu afternoon, min 28°C on Wed morning). Wind will be generally light.

Days 10–12 Weather Summary

Mostly dry. Warm (max 29°C on Sat afternoon, min 28°C on Sat morning). Wind will be generally light.

Thursday
17
Friday
18
Saturday
19
Sunday
20
Monday
21
Tuesday
22
Wednesday
23
Thursday
24
Friday
25
Saturday
26
Sunday
27
Monday
28
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
6:40AM0.35m
7:17PM0.27m
7:24AM0.37m
8:43PM0.22m
8:17AM0.39m
10:27PM0.19m
9:18AM0.41m
11:53PM0.18m
10:25AM0.43m
00:53AM0.19m
11:31AM0.45m
1:40AM0.20m
12:31PM0.47m
2:19AM0.21m
1:25PM0.47m
2:55AM0.24m
2:14PM0.47m
3:29AM0.27m
2:59PM0.46m
4:01AM0.29m
3:42PM0.43m
4:32AM0.32m
4:23PM0.39m
Low Tide
11:56AM0.06m
11:45PM0.13m
1:14PM0.03m
00:31AM0.16m
2:30PM-0.02m
1:26AM0.17m
3:40PM-0.06m
2:26AM0.17m
4:43PM-0.09m
3:29AM0.16m
5:39PM-0.10m
6:28PM-0.10m
5:25AM0.12m
7:12PM-0.08m
6:20AM0.11m
7:52PM-0.05m
7:13AM0.10m
8:30PM-0.02m
8:05AM0.11m
9:06PM0.02m
8:58AM0.12m
9:41PM0.06m
Wave
height (m) 
direction
period (s) 
0.4
SE
3.0
0.4
SE
3.0
0.6
SE
3.0
0.6
ESE
3.0
0.6
ESE
3.0
0.5
ESE
3.0
0.5
ESE
3.0
0.4
ESE
3.0
0.4
ESE
3.0
0.3
ESE
2.0
0.2
ESE
2.0
0.3
ESE
2.0
0.1
SE
2.0
0.1
SE
2.0
0.1
SE
2.0
0.1
SE
4.0
0.1
E
3.0
0
E
3.0
0.1
SE
2.0
0.1
E
2.0
0.1
E
2.0
0
E
2.0
0
E
2.0
0
E
2.0
0
E
2.0
0.1
W
1.0
0
W
2.0
0.1
S
1.0
0.1
SW
2.0
0.1
W
2.0
0.2
S
2.0
0.1
S
2.0
0.1
S
2.0
0.1
SE
2.0
0.1
SE
2.0
0.1
E
2.0
cloud
thunderstorm
part cloud
part cloud
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
rain showers
part cloud
part cloud
clear
clear
clear
clear
clear
clear
part cloud
part cloud
cloud
part cloud
part cloud
clear
clear
clear
clear
clear
cloudy
risk tstorm
some clouds
some clouds
some clouds
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
rain shwrs
some clouds
some clouds
clear
clear
clear
clear
clear
clear
some clouds
some clouds
cloudy
some clouds
some clouds
clear
clear
clear
clear
clear
 km/h
25
ESE
25
ESE
35
ESE
30
ESE
30
E
30
E
30
E
20
ESE
25
E
15
E
15
ESE
20
E
5
ESE
10
SE
10
ESE
5
E
5
S
5
ESE
10
SE
0
S
10
ESE
5
SSE
5
WSW
5
W
5
W
10
W
5
W
10
SSW
15
WSW
10
SSW
15
SSW
10
SSW
5
SSE
15
SE
10
SE
10
E
 mm 
2
1
max°C
28
29
29
28
29
29
28
28
28
28
28
28
28
28
28
28
28
28
28
28
28
28
29
29
28
29
29
28
29
29
28
29
28
28
29
29
Moonrise
12:18
12:55
1:35
2:21
3:15
4:15
5:20
6:27
7:32
8:33
9:30
10:24
Moonset
1:16
2:20
3:26
4:34
5:42
6:45
7:42
8:30
9:11
9:47
10:19
10:49
Sunrise
6:46
6:46
6:47
6:47
6:48
6:48
6:48
6:48
6:50
6:50
6:50
6:50
Sunset
8:15
8:15
8:15
8:15
8:15
8:14
8:14
8:14
8:13
8:13
8:12
8:12
Today's sea temperature in Porpoise Key, Big Spanish Channel is 30.6 °C (Statistics for 17 Jul 1981-2005 – mean: 29.3 max: 29.9 min: 28.5°C)
Issued (local time): 7 am Thursday 17 Jul 2025
Forecast update inUpdates in  hr  min  sUpdate imminent
Nearest