Mare Island, Naval Shipyard Sea Conditions and Tide Table

Mare Island, Naval Shipyard 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 07:18 AM and sunset is at 04:51 PM.

Days 1–3 Weather Summary

Heavy rain (total 45mm), heaviest during Sat night. Cool air temperatures (max 16°C on Fri morning, min 11°C on Thu morning). Wind will be generally light.

Days 4–6 Weather Summary

Heavy rain (total 52mm), heaviest during Mon afternoon. Cool air temperatures (max 16°C on Tue morning, min 11°C on Mon afternoon). Winds increasing (calm on Mon afternoon, fresh winds from the S by Tue night).

Days 7–9 Weather Summary

Heavy rain (total 73mm), heaviest during Wed night. Very mild (max 15°C on Wed morning, min 8°C on Fri night). Winds decreasing (strong winds from the SSE on Wed afternoon, calm by Fri night).

Days 10–12 Weather Summary

Light rain (total 5mm), mostly falling on Tue morning. Very mild (max 12°C on Sat afternoon, min 5°C on Sun night). 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
11:02AM1.82m
1:38AM1.39m
11:34AM1.83m
2:23AM1.40m
12:09PM1.84m
3:04AM1.41m
12:47PM1.84m
3:44AM1.42m
1:28PM1.83m
4:22AM1.43m
2:12PM1.79m
4:57AM1.46m
3:00PM1.70m
5:31AM1.51m
3:55PM1.58m
6:05AM1.57m
5:02PM1.44m
6:39AM1.66m
6:28PM1.30m
7:15AM1.76m
8:02PM1.23m
7:56AM1.87m
9:28PM1.23m
Low Tide
6:56PM-0.16m
6:14AM0.93m
7:33PM-0.16m
8:08PM-0.16m
7:36AM0.94m
8:42PM-0.15m
8:18AM0.93m
9:15PM-0.13m
9:03AM0.91m
9:48PM-0.10m
9:52AM0.87m
10:23PM-0.04m
10:48AM0.81m
11:01PM0.04m
11:52AM0.71m
11:43PM0.16m
1:02PM0.57m
00:31AM0.31m
2:12PM0.38m
1:25AM0.46m
3:18PM0.17m
2:24AM0.60m
Wave
height (m) 
direction
period (s) 
part cloud
clear
part cloud
cloud
light rain
light rain
mod rain
heavy rain
heavy rain
light rain
cloud
cloud
cloud
heavy rain
heavy rain
light rain
mod rain
rain showers
rain showers
light rain
heavy rain
heavy rain
clear
heavy rain
light rain
rain showers
clear
clear
clear
clear
part cloud
part cloud
clear
part cloud
cloud
light rain
some clouds
clear
some clouds
cloudy
light rain
light rain
mod rain
heavy rain
heavy rain
light rain
cloudy
cloudy
cloudy
heavy rain
heavy rain
light rain
mod rain
rain shwrs
rain shwrs
light rain
heavy rain
heavy rain
clear
heavy rain
light rain
rain shwrs
clear
clear
clear
clear
some clouds
some clouds
clear
some clouds
cloudy
light rain
 km/h
5
W
5
SW
5
S
10
SSW
10
SW
5
SW
5
SSW
5
ESE
25
SSW
15
SSW
15
SW
5
SW
0
NNW
0
WSW
10
ESE
25
SSE
25
S
25
SSW
15
SSE
30
SSE
30
S
20
SW
25
SSW
25
SSW
20
SSW
5
WNW
0
ESE
5
ENE
5
NW
5
ESE
5
ENE
5
ENE
5
ENE
10
E
5
ENE
5
SE
 mm 
4
1
7
12
21
1
11
15
3
6
16
1
1
40
13
12
5
1
2
max°C
14
15
13
16
15
14
14
14
15
15
15
13
14
12
15
16
16
15
15
15
14
11
12
12
12
11
10
11
12
10
10
11
8
11
12
11
Moonrise
6:27
7:24
8:15
8:59
9:37
10:08
10:36
11:01
11:26
11:49
12:15
12:45
Moonset
3:34
4:23
5:19
6:20
7:24
8:29
9:34
10:39
11:45
12:53
2:04
Sunrise
7:18
7:20
7:20
7:20
7:22
7:22
7:22
7:22
7:22
7:24
7:24
7:24
Sunset
4:51
4:51
4:52
4:52
4:52
4:52
4:53
4:54
4:54
4:55
4:57
4:57
Today's sea temperature in Mare Island, Naval Shipyard is
11.4° C
(Statistics for 18 Dec 1981-2005 – mean: 12.3 max: 14.8 min: 11.0°C)
Issued (local time): 9 am Thursday 18 Dec 2025
Forecast update inUpdates in  hr  min  sUpdate imminent
Nearest locationNearest