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 07:01 AM and sunset is at 06:42 PM.

Days 1–3 Weather Summary

Light rain (total 2mm), mostly falling on Wed night. Icy conditions (max 12°C on Wed night, min -1°C on Thu night). Winds increasing (light winds from the SSW on Wed morning, fresh winds from the SSW by Wed night).

Days 4–6 Weather Summary

Light rain (total 2mm), mostly falling on Fri night. Icy conditions (max 11°C on Sun night, min -1°C on Fri morning). Winds increasing (calm on Sat night, strong winds from the S by Sun night).

Days 7–9 Weather Summary

Heavy rain (total 33mm), heaviest during Mon afternoon. Freeze-thaw conditions (max 13°C on Mon afternoon, min -5°C on Tue night). Winds decreasing (near gales from the S on Mon afternoon, light winds from the SSW by Wed night).

Days 10–12 Weather Summary

Mostly dry. Freeze-thaw conditions (max 7°C on Sat afternoon, min -1°C on Thu morning). Winds decreasing (fresh winds from the SSW on Fri afternoon, calm by Sun morning).

Tuesday
10
Wednesday
11
Thursday
12
Friday
13
Saturday
14
Sunday
15
Monday
16
Tuesday
17
Wednesday
18
Thursday
19
Friday
20
Saturday
21
Sunday
22
Monday
23
Tuesday
24
Wed
25
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
6:38AM0.66m
7:19PM0.57m
7:31AM0.64m
8:15PM0.55m
8:27AM0.63m
9:14PM0.55m
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
Low Tide
12:55PM0.09m
1:06AM0.15m
1:50PM0.11m
2:00AM0.17m
2:47PM0.12m
2:57AM0.17m
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
Wave
height (m) 
direction
period (s) 
0.3
ESE
8
0.4
ESE
8
0.2
ESE
8
0.2
ESE
8
0.3
S
2
0.9
SSW
4
0.7
S
8
0.5
S
8
0.5
WNW
3
0.4
S
8
0.5
SW
3
1.1
S
4
1
WSW
4
0.8
WSW
4
0.3
SSW
8
0.2
S
7
0.8
SSE
4
1.1
S
4
1.6
S
5
1.7
S
5
0.8
S
10
0.8
SSE
10
0.6
SSE
10
0.7
SE
10
0.4
SSE
9
0.5
SE
9
0.4
SE
8
0.3
SE
8
0.4
SSE
3
0.4
SE
8
0.4
SSE
3
0.7
SSW
4
0.5
ESE
10
0.4
E
10
0.5
E
10
0.4
E
10
0.2
E
9
0.3
E
9
0.2
E
8
1
ENE
5
0.6
ENE
4
0.3
E
4
0.2
E
4
0.2
ESE
8
0.5
SE
3
1
SE
5
0.7
SSE
7
part cloud
part cloud
part cloud
part cloud
part cloud
rain showers
cloud
cloud
part cloud
clear
part cloud
rain showers
clear
part cloud
part cloud
cloud
cloud
part cloud
mod rain
heavy rain
mod rain
part cloud
clear
part cloud
clear
clear
clear
part cloud
part cloud
part cloud
part cloud
cloud
cloud
cloud
part cloud
part cloud
part cloud
clear
snow showers
light snow
cloud
cloud
light snow
light snow
light snow
cloud
cloud
some clouds
some clouds
some clouds
some clouds
some clouds
rain shwrs
cloudy
cloudy
some clouds
clear
some clouds
rain shwrs
clear
some clouds
some clouds
cloudy
cloudy
some clouds
mod rain
heavy rain
mod rain
some clouds
clear
some clouds
clear
clear
clear
some clouds
some clouds
some clouds
some clouds
cloudy
cloudy
cloudy
some clouds
some clouds
some clouds
clear
snow shwrs
light snow
cloudy
cloudy
light snow
light snow
light snow
cloudy
cloudy
 km/h
20
SW
20
SW
10
SW
10
SW
20
S
35
SW
25
WNW
20
WNW
25
WNW
15
W
25
SSW
40
S
35
W
30
W
10
W
15
SSE
30
S
35
S
50
S
50
SSW
25
WNW
30
W
20
WNW
30
NW
15
WNW
20
WSW
20
SSW
15
SSE
20
SSE
10
S
25
SSW
30
SW
20
WNW
15
WNW
15
WSW
15
W
10
WSW
20
SW
15
N
30
NE
20
NE
5
SW
5
SW
10
ENE
20
SE
30
SSE
20
WSW
 mm 
2
2
7
18
8
max°C
10
8
9
6
10
12
8
5
1
1
2
6
4
7
4
3
8
11
12
13
12
-1
3
0
-4
-1
0
0
1
1
4
5
5
5
7
6
5
8
8
0
-3
-3
-2
-2
2
7
10
Moonrise
1:32
2:31
3:24
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
Moonset
10:14
11:00
11:54
12:55
2:01
3:10
4:19
5:30
6:42
7:55
9:11
10:29
11:48
1:04
2:12
Sunrise
7:01
7:01
6:58
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
Sunset
6:42
6:43
6:44
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
Today's sea temperature in Poponesset Island, Poponesset Bay, Nantucket Sound is
2.1° C
(Statistics for 10 Mar 1981-2005 – mean: 4.3 max: 5.8 min: 2.3°C)
Issued (local time): 1 am Tuesday 10 Mar 2026
Forecast update inUpdates in  hr  min  sUpdate imminent
Nearest locationNearest