Prisoners Harbor, Santa Cruz Island Sea Conditions and Tide Table

Prisoners Harbor, Santa Cruz Island 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 06:58 AM and sunset is at 04:52 PM.

Days 1–3 Weather Summary

Mostly dry. Warm air temperatures (max 21°C on Thu morning, min 15°C on Fri afternoon). Wind will be generally light.

Days 4–6 Weather Summary

Heavy rain (total 21mm), heaviest during Tue night. Cool air temperatures (max 17°C on Sun morning, min 14°C on Tue night). Winds increasing (calm on Mon afternoon, strong winds from the SE by Tue night).

Days 7–9 Weather Summary

Moderate rain (total 15mm), heaviest on Wed morning. Very mild (max 17°C on Thu morning, min 13°C on Fri night). Winds increasing (calm on Wed morning, fresh winds from the S by Thu morning).

Days 10–12 Weather Summary

Mostly dry. Very mild (max 16°C on Sat afternoon, min 12°C on Sat night). Winds decreasing (fresh winds from the NW on Sat afternoon, calm by Sun night).

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
7:40AM1.70m
9:48PM1.01m
8:11AM1.72m
10:23PM1.01m
8:43AM1.73m
10:59PM1.01m
9:17AM1.72m
11:37PM1.01m
9:51AM1.68m
00:18AM1.01m
10:28AM1.61m
1:01AM1.04m
11:08AM1.50m
1:45AM1.09m
11:56AM1.34m
2:28AM1.18m
1:00PM1.15m
3:10AM1.30m
2:33PM0.97m
3:53AM1.44m
4:25PM0.87m
4:37AM1.59m
6:06PM0.88m
5:24AM1.74m
Low Tide
3:08PM-0.17m
1:49AM0.80m
3:40PM-0.20m
2:21AM0.80m
4:14PM-0.21m
2:55AM0.81m
4:50PM-0.20m
3:31AM0.82m
5:26PM-0.16m
4:12AM0.85m
6:03PM-0.11m
5:04AM0.87m
6:41PM-0.03m
6:13AM0.88m
7:20PM0.08m
7:44AM0.83m
8:01PM0.21m
9:26AM0.68m
8:46PM0.35m
10:53AM0.44m
9:38PM0.48m
11:59AM0.15m
10:35PM0.59m
Wave
height (m) 
direction
period (s) 
0.6
WSW
9
0.7
W
8
0.6
WSW
12
0.6
W
8
0.9
WNW
6
0.5
SW
12
0.4
WSW
12
0.4
W
11
0.4
WSW
12
0.3
W
11
0.3
W
11
0.3
WSW
11
0.3
W
11
0.3
W
11
0.3
WSW
10
0.3
WSW
13
0.5
W
13
1.3
SSE
6
1
S
6
0.8
SSW
6
0.7
SSW
6
1.1
S
6
1.3
SW
8
1.2
W
14
1.1
W
15
1.1
W
15
0.8
W
14
0.9
W
12
0.9
W
12
0.5
W
11
0.4
WNW
10
0.3
W
10
0.3
W
9
0.2
W
8
0.3
W
14
0.4
W
13
clear
clear
clear
clear
clear
clear
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
cloud
cloud
cloud
light rain
heavy rain
rain showers
clear
rain showers
light rain
rain showers
rain showers
light rain
light rain
rain showers
clear
clear
clear
part cloud
cloud
part cloud
clear
part cloud
part cloud
clear
clear
clear
clear
clear
clear
some clouds
some clouds
some clouds
some clouds
some clouds
some clouds
some clouds
cloudy
cloudy
cloudy
light rain
heavy rain
rain shwrs
clear
rain shwrs
light rain
rain shwrs
rain shwrs
light rain
light rain
rain shwrs
clear
clear
clear
some clouds
cloudy
some clouds
clear
some clouds
some clouds
 km/h
20
WNW
20
WNW
20
WNW
15
WNW
25
WNW
10
NW
5
SSW
10
W
15
WNW
10
WNW
15
WNW
10
WNW
5
WNW
5
W
10
SSE
20
SE
25
SE
35
SE
10
WSW
15
SSE
25
SSE
35
S
30
SSW
10
SSW
10
SSW
5
NW
20
WNW
30
NW
30
NW
10
NW
5
NNW
10
WNW
5
NNW
5
NW
10
WNW
10
WNW
 mm 
1
20
3
1
2
3
1
2
2
1
max°C
21
20
18
18
16
16
18
17
16
17
16
16
17
17
15
16
16
16
16
16
16
17
16
16
16
15
13
15
16
13
14
14
14
15
14
14
Moonrise
6:02
6:58
7:50
8:35
9:15
9:49
10:20
10:47
11:14
11:41
12:10
12:43
Moonset
3:38
4:27
5:23
6:23
7:24
8:27
9:29
10:31
11:34
12:38
1:46
Sunrise
6:58
6:58
6:58
7:00
7:00
7:01
7:01
7:01
7:01
7:01
7:03
7:03
Sunset
4:52
4:52
4:52
4:52
4:53
4:53
4:54
4:54
4:55
4:57
4:57
4:58
Today's sea temperature in Prisoners Harbor, Santa Cruz Island is
16.9° C
(Statistics for 18 Dec 1981-2005 – mean: 14.6 max: 16.1 min: 12.9°C)
Issued (local time): 9 am Thursday 18 Dec 2025
Forecast update inUpdates in  hr  min  sUpdate imminent
Nearest locationNearest