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 — and sunset is at 04:15 PM.

Days 1–4 Weather Summary

A dusting of snow turning to light rain (total 4mm) on Tue morning. Icy conditions (max 8°C on Sat night, min -4°C on Sun night). Winds decreasing (strong winds from the SW on Sat night, light winds from the W by Tue morning).

Days 5–7 Weather Summary

A dusting of snow turning to light rain (total 8mm) on Fri morning. Low air temperatures (max 9°C on Fri morning, min 1°C on Wed afternoon). Winds increasing (light winds from the NNE on Wed morning, strong winds from the WSW by Fri morning).

Days 8–10 Weather Summary

Moderate rain (total 10mm), heaviest on Sun night. Freeze-thaw conditions (max 9°C on Fri afternoon, min -5°C on Fri night). Winds decreasing (fresh winds from the NNW on Fri night, light winds from the ESE by Sat night).

Days 11–13 Weather Summary

Mostly dry. Freeze-thaw conditions (max 4°C on Mon afternoon, min -2°C on Tue night). Winds decreasing (strong winds from the NNE on Mon night, light winds from the NNW by Thu morning).

Sat
20
Sunday
21
Monday
22
Tuesday
23
Wednesday
24
Thursday
25
Friday
26
Saturday
27
Sunday
28
Monday
29
Tuesday
30
Wednesday
31
Thu
1
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
AM
Wave Height Map
High Tide
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
5:15PM0.54m
5:51AM0.73m
6:15PM0.57m
6:48AM0.76m
Low Tide
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
11:57AM0.02m
11:46PM-0.02m
12:56PM-0.03m
00:49AM-0.05m
Wave
height (m) 
direction
period (s) 
0.6
S
10
1.2
SW
5
1.3
SW
6
0.9
WSW
5
0.9
WNW
4
0.6
NW
3
0.5
NW
3
0.3
W
2
0.5
WSW
3
0.3
SW
4
0.2
SSW
6
0.4
SE
5
0.2
SSW
7
0.3
SSW
3
0.7
SW
4
0.6
SW
4
0.4
SSW
5
0.7
SSW
4
0.9
SW
5
0.8
WSW
5
0.4
SSW
9
0.3
SSW
8
0.2
S
8
0.3
SSE
3
0.7
SE
4
0.8
SE
4
0.8
ESE
5
0.9
NNE
4
1.2
NNE
4
1.3
NNE
5
1.1
NNE
4
0.6
E
5
0.4
ENE
4
0.3
ENE
4
0.2
SSE
14
0.2
SSE
14
part cloud
part cloud
clear
clear
clear
clear
part cloud
light snow
light rain
light snow
light rain
part cloud
part cloud
cloud
part cloud
cloud
cloud
mod rain
part cloud
clear
part cloud
cloud
part cloud
cloud
light rain
mod rain
part cloud
part cloud
part cloud
clear
clear
clear
clear
clear
part cloud
part cloud
some clouds
some clouds
clear
clear
clear
clear
some clouds
light snow
light rain
light snow
light rain
some clouds
some clouds
cloudy
some clouds
cloudy
cloudy
mod rain
some clouds
clear
some clouds
cloudy
some clouds
cloudy
light rain
mod rain
some clouds
some clouds
some clouds
clear
clear
clear
clear
clear
some clouds
some clouds
 km/h
20
WSW
40
SW
40
WSW
40
WNW
40
WNW
30
NW
25
NW
15
W
20
WSW
15
ENE
10
N
15
NE
5
N
15
WSW
30
SW
25
SW
15
WSW
25
SSW
30
WNW
35
NNW
20
NNE
15
NE
10
ESE
20
SE
30
SE
30
E
30
NNE
40
N
45
NNE
45
NNE
40
NNE
25
NNE
25
N
15
NNE
10
N
5
NNW
 mm 
4
1
7
1
9
max°C
2
8
6
2
0
0
1
3
2
2
2
3
3
4
6
6
8
9
9
2
-2
-3
-1
2
3
5
6
4
2
-1
-1
-1
1
1
2
3
Moonrise
8:40
9:16
9:47
10:12
10:35
10:57
11:18
11:41
12:07
12:40
1:21
2:15
Moonset
4:30
5:32
6:38
7:46
8:53
10:01
11:09
12:19
1:33
2:51
4:11
5:30
Sunrise
7:05
7:05
7:05
7:05
7:07
7:07
7:07
7:07
7:07
7:07
7:07
7:07
Sunset
4:15
4:15
4:15
4:15
4:16
4:17
4:17
4:19
4:20
4:20
4:21
4:22
Today's sea temperature in Off Lake Tashmoo, Martha's Vineyard is
5.8° C
(Statistics for 20 Dec 1981-2005 – mean: 8.3 max: 10.0 min: 6.7°C)
Issued (local time): 6 pm Saturday 20 Dec 2025
Forecast update inUpdates in  hr  min  sUpdate imminent
Nearest locationNearest