Poponesset Island, Poponesset Bay, Nantucket Sound Sea Conditions and Tide Table

Poponesset Island, Poponesset Bay, Nantucket Sound 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 06:56 AM and sunset is at 06:45 PM.

Days 1–3 Weather Summary

Some drizzle, heaviest during Fri night. Icy conditions (max 8°C on Fri night, min -2°C on Fri morning). Winds decreasing (near gales from the WSW on Sat morning, light winds from the NE by Sun morning).

Days 4–6 Weather Summary

Heavy rain (total 23mm), heaviest during Mon morning. Icy conditions (max 13°C on Mon night, min -3°C on Tue night). Winds decreasing (near gales from the S on Mon night, light winds from the WSW by Wed afternoon).

Days 7–9 Weather Summary

Mostly dry. Freeze-thaw conditions (max 6°C on Fri afternoon, min -3°C on Sat morning). Winds increasing (light winds from the W on Fri afternoon, fresh winds from the WSW by Sat afternoon).

Days 10–12 Weather Summary

Some drizzle, heaviest during Wed morning. Freeze-thaw conditions (max 11°C on Wed morning, min -5°C on Sun night). Winds decreasing (strong winds from the NNW on Sun night, light winds from the S by Mon afternoon).

Friday
13
Saturday
14
Sunday
15
Monday
16
Tuesday
17
Wednesday
18
Thursday
19
Friday
20
Saturday
21
Sunday
22
Monday
23
Tuesday
24
Wednesday
25
Thursday
26
Friday
27
Sat
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
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
Wave Height Map
High Tide
9:26AM0.63m
10:14PM0.55m
10:25AM0.65m
11:09PM0.58m
11:19AM0.67m
11:56PM0.62m
12:07PM0.70m
00:38AM0.66m
12:51PM0.73m
1:17AM0.70m
1:33PM0.75m
1:55AM0.74m
2:17PM0.77m
2:36AM0.78m
3:01PM0.77m
3:18AM0.80m
3:47PM0.76m
4:02AM0.81m
4:35PM0.74m
4:49AM0.81m
5:26PM0.70m
5:40AM0.79m
6:22PM0.67m
6:38AM0.76m
7:26PM0.64m
7:43AM0.73m
8:34PM0.62m
8:52AM0.71m
Low Tide
3:44PM0.12m
3:54AM0.16m
4:40PM0.10m
4:50AM0.13m
5:30PM0.07m
5:41AM0.09m
6:14PM0.03m
6:27AM0.05m
6:55PM0.00m
7:12AM-0.00m
7:35PM-0.02m
7:55AM-0.04m
8:16PM-0.04m
8:40AM-0.07m
8:58PM-0.05m
9:26AM-0.08m
9:42PM-0.04m
10:14AM-0.08m
10:28PM-0.02m
11:04AM-0.06m
11:18PM0.02m
12:00PM-0.03m
00:14AM0.05m
1:01PM-0.00m
1:16AM0.08m
2:07PM0.02m
2:22AM0.09m
3:13PM0.04m
Wave
height (m) 
direction
period (s) 
0.3
S
9
0.4
SW
3
1.3
S
5
1.5
WSW
5
1.1
WSW
4
0.7
WNW
4
0.1
S
7
0.3
SE
2
0.8
SE
4
1.4
SE
6
1.5
SSE
5
1.9
S
10
1.1
S
11
1.1
SSE
11
0.9
SSE
10
0.6
SSE
10
0.4
SE
10
0.4
SE
9
0.6
SE
9
0.7
SSE
4
0.4
SE
8
0.3
SE
8
0.4
SE
8
0.6
N
3
0.3
ESE
8
0.9
SW
4
0.7
W
3
0.7
WNW
3
0.9
NW
4
0.8
NNW
4
0.4
NNW
3
0.2
E
14
0.4
SW
3
0.4
SSW
3
0.7
S
4
0.5
SW
3
0.6
N
3
0.9
NNW
4
0.9
NNW
4
0.5
N
3
0.4
NNE
3
0.7
NE
4
0.6
NE
4
0.3
ENE
4
0.2
E
4
0.9
SSE
4
0.6
S
5
clear
cloud
rain showers
clear
part cloud
clear
part cloud
part cloud
part cloud
mod rain
mod rain
mod rain
light rain
part cloud
part cloud
clear
part cloud
part cloud
cloud
part cloud
clear
part cloud
cloud
clear
part cloud
part cloud
cloud
clear
cloud
part cloud
clear
part cloud
part cloud
cloud
cloud
clear
rain showers
clear
clear
clear
clear
part cloud
part cloud
part cloud
light snow
cloud
light rain
clear
cloudy
rain shwrs
clear
some clouds
clear
some clouds
some clouds
some clouds
mod rain
mod rain
mod rain
light rain
some clouds
some clouds
clear
some clouds
some clouds
cloudy
some clouds
clear
some clouds
cloudy
clear
some clouds
some clouds
cloudy
clear
cloudy
some clouds
clear
some clouds
some clouds
cloudy
cloudy
clear
rain shwrs
clear
clear
clear
clear
some clouds
some clouds
some clouds
light snow
cloudy
light rain
 km/h
15
WSW
25
SW
45
SSW
50
WSW
40
W
30
WNW
10
NE
20
SSE
25
SE
45
SSE
40
S
55
S
35
WSW
35
WSW
30
WNW
20
WNW
10
WSW
15
S
25
SSE
25
S
15
WSW
10
NW
15
WSW
25
NNW
15
W
35
WSW
30
WNW
30
NW
40
NNW
30
NNW
20
N
5
S
20
WSW
20
SSW
30
SSW
25
SW
30
N
40
NNW
35
NNW
25
NNW
20
N
25
NNE
20
NNE
10
NE
15
SSE
35
S
20
SW
 mm 
1
6
6
9
2
1
1
max°C
0
1
8
6
6
3
1
2
7
10
12
13
7
3
3
-2
1
0
2
4
4
5
6
6
-1
3
4
2
3
-2
-3
0
1
2
5
9
11
7
1
-3
2
1
-2
0
0
3
7
Moonrise
4:09
4:46
5:18
5:44
6:08
6:30
6:52
7:16
7:43
8:15
8:55
9:46
10:48
11:58
1:13
2:27
Moonset
12:55
2:01
3:10
4:19
5:30
6:42
7:55
9:11
10:29
11:48
1:04
2:12
3:08
3:53
4:27
Sunrise
6:56
6:56
6:54
6:52
6:50
6:48
6:47
6:46
6:43
6:41
6:39
6:39
6:37
6:35
6:33
6:31
Sunset
6:45
6:45
6:46
6:49
6:50
6:51
6:52
6:52
6:53
6:54
6:55
6:57
6:59
7:00
7:00
7:01
Today's sea temperature in Poponesset Island, Poponesset Bay, Nantucket Sound is
3.0° C
(Statistics for 13 Mar 1981-2005 – mean: 4.3 max: 5.8 min: 2.3°C)
Issued (local time): 1 am Friday 13 Mar 2026
Forecast update inUpdates in  hr  min  sUpdate imminent
Nearest locationNearest