Off Lake Tashmoo, Martha's Vineyard Sea Conditions and Tide Table

Off Lake Tashmoo, Martha's Vineyard 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 04:14 PM.

Days 1–3 Weather Summary

Moderate rain (total 14mm), heaviest on Fri afternoon. Icy conditions (max 13°C on Thu night, min -1°C on Fri night). Winds increasing (light winds from the SSE on Thu morning, gales from the S by Fri morning).

Days 4–6 Weather Summary

Light rain (total 4mm), mostly falling on Tue morning. Icy conditions (max 6°C on Sun morning, min -5°C on Sun night). Mainly near gales.

Days 7–9 Weather Summary

Moderate rain (total 12mm), heaviest on Fri afternoon. Freeze-thaw conditions (max 8°C on Fri afternoon, min -3°C on Wed night). Winds increasing (calm on Wed night, strong winds from the NNW by Fri night).

Days 10–12 Weather Summary

Mostly dry. Freeze-thaw conditions (max 3°C on Mon morning, min -4°C on Sat night). Winds increasing (light winds from the WNW on Sun morning, strong winds from the NW by Tue morning).

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
7:34AM0.64m
7:51PM0.52m
8:15AM0.66m
8:33PM0.53m
8:56AM0.67m
9:15PM0.54m
9:36AM0.67m
9:57PM0.54m
10:17AM0.66m
10:39PM0.54m
10:59AM0.64m
11:23PM0.55m
11:42AM0.62m
00:08AM0.55m
12:28PM0.59m
00:58AM0.56m
1:18PM0.57m
1:52AM0.58m
2:13PM0.55m
2:49AM0.60m
3:12PM0.53m
3:50AM0.64m
4:14PM0.53m
4:51AM0.68m
Low Tide
2:45PM0.03m
2:32AM0.03m
3:22PM0.02m
3:05AM0.03m
3:58PM0.02m
3:36AM0.04m
4:31PM0.03m
4:05AM0.05m
5:02PM0.04m
4:35AM0.05m
5:31PM0.05m
5:10AM0.07m
6:00PM0.06m
5:53AM0.08m
6:34PM0.06m
6:49AM0.09m
7:19PM0.06m
8:03AM0.09m
8:17PM0.05m
9:30AM0.09m
9:27PM0.04m
10:49AM0.06m
10:39PM0.02m
Wave
height (m) 
direction
period (s) 
0.3
SSW
8
0.4
SSW
4
1
S
5
2.4
S
6
1.8
S
11
1.6
SW
7
1
SW
6
0.5
S
10
1.1
SSW
4
1.4
SW
6
1.1
SW
5
1
W
4
0.9
WNW
4
0.6
NW
4
0.2
SSW
4
0.9
SW
4
1.7
SW
6
0.9
WSW
5
0.8
WNW
4
0.7
NW
4
0.3
N
3
0.1
S
7
0.5
WSW
3
0.4
WSW
3
0.2
SSW
4
0.4
S
3
0.7
SW
4
0.9
NNW
4
0.7
W
5
0.3
SSW
8
0.2
S
8
0.2
S
8
0.3
W
2
0.2
W
3
0.1
W
3
0.2
WNW
2
clear
clear
rain showers
mod rain
rain showers
clear
clear
part cloud
part cloud
clear
clear
clear
clear
clear
part cloud
light rain
rain showers
clear
clear
clear
clear
part cloud
part cloud
cloud
light rain
mod rain
part cloud
part cloud
clear
clear
part cloud
cloud
part cloud
clear
clear
clear
clear
clear
rain shwrs
mod rain
rain shwrs
clear
clear
some clouds
some clouds
clear
clear
clear
clear
clear
some clouds
light rain
rain shwrs
clear
clear
clear
clear
some clouds
some clouds
cloudy
light rain
mod rain
some clouds
some clouds
clear
clear
some clouds
cloudy
some clouds
clear
clear
clear
 km/h
10
SSE
20
SSE
35
SSE
70
S
40
SW
50
W
35
WNW
15
SW
40
SSW
40
WSW
35
W
40
WNW
40
NW
30
NW
15
WNW
35
SSW
50
WSW
35
WNW
35
NW
35
NNW
15
N
10
SW
25
WSW
20
W
15
SE
20
SW
30
W
35
NNW
30
NNW
15
NNW
10
WNW
10
WSW
20
W
15
NNW
10
N
15
WNW
 mm 
1
7
6
2
2
3
9
max°C
5
9
13
13
9
1
2
3
8
6
6
-1
-2
-1
2
4
3
4
2
0
-3
0
3
3
7
8
7
0
0
-3
-2
1
1
3
3
1
Moonrise
6:05
7:04
7:56
8:40
9:16
9:47
10:12
10:35
10:57
11:18
11:41
12:07
Moonset
2:47
3:35
4:30
5:32
6:38
7:46
8:53
10:01
11:09
12:19
1:33
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
4:14
4:14
4:15
4:15
4:15
4:15
4:16
4:17
4:17
4:19
4:20
4:20
Today's sea temperature in Off Lake Tashmoo, Martha's Vineyard is
5.8° C
(Statistics for 18 Dec 1981-2005 – mean: 8.5 max: 11.2 min: 6.7°C)
Issued (local time): 6 am Thursday 18 Dec 2025
Forecast update inUpdates in  hr  min  sUpdate imminent
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