Great Point, Nantucket Island Sea Conditions and Tide Table

Great Point, Nantucket Island 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 06:39 PM.

Days 1–3 Weather Summary

Light rain (total 5mm), mostly falling on Wed night. Icy conditions (max 11°C on Tue morning, min 0°C on Thu night). Winds increasing (light winds from the SW on Wed morning, strong winds from the SSW by Wed night).

Days 4–6 Weather Summary

Light rain (total 4mm), mostly falling on Fri night. Icy conditions (max 11°C on Sun night, min 0°C on Fri morning). Winds decreasing (near gales from the W on Sat morning, light winds from the NW by Sat night).

Days 7–9 Weather Summary

Heavy rain (total 24mm), heaviest during Mon afternoon. Freeze-thaw conditions (max 12°C on Mon afternoon, min -4°C on Tue night). Winds decreasing (near gales from the S on Mon morning, light winds from the SSW by Wed night).

Days 10–12 Weather Summary

Mostly dry. Freeze-thaw conditions (max 5°C on Fri afternoon, min -1°C on Thu morning). Winds decreasing (fresh winds from the SW on Fri night, light winds from the W 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
5:18AM0.88m
5:59PM0.77m
6:11AM0.86m
6:55PM0.73m
7:07AM0.84m
7:54PM0.73m
8:06AM0.84m
8:54PM0.74m
9:05AM0.86m
9:49PM0.77m
9:59AM0.89m
10:36PM0.82m
10:47AM0.94m
11:18PM0.88m
11:31AM0.98m
11:57PM0.94m
12:13PM1.01m
00:35AM0.99m
12:57PM1.02m
1:16AM1.04m
1:41PM1.02m
1:58AM1.07m
2:27PM1.01m
2:42AM1.09m
3:15PM0.98m
3:29AM1.08m
4:06PM0.94m
4:20AM1.05m
5:02PM0.89m
Low Tide
11:31AM0.12m
11:42PM0.20m
12:26PM0.15m
00:36AM0.22m
1:23PM0.16m
1:33AM0.23m
2:20PM0.16m
2:30AM0.21m
3:16PM0.13m
3:26AM0.17m
4:06PM0.09m
4:17AM0.12m
4:50PM0.05m
5:03AM0.06m
5:31PM0.00m
5:48AM-0.00m
6:11PM-0.03m
6:31AM-0.05m
6:52PM-0.05m
7:16AM-0.09m
7:34PM-0.06m
8:02AM-0.11m
8:18PM-0.05m
8:50AM-0.11m
9:04PM-0.02m
9:40AM-0.09m
9:54PM0.02m
10:36AM-0.04m
Wave
height (m) 
direction
period (s) 
0.7
E
8
0.8
SW
4
0.6
ESE
8
0.5
E
8
0.6
ESE
8
1.5
S
6
1.2
SSE
8
1.1
SSE
8
1.1
SE
8
0.7
SE
8
0.8
SW
4
1.4
SSE
5
1.5
WSW
5
1.2
WSW
5
0.6
S
8
0.4
SSE
8
1
SSE
4
1.6
SSE
7
2.1
SSE
8
2.4
SSE
9
1.7
SE
10
1.7
SE
11
1.4
SE
10
1.3
SE
10
1
SE
9
0.8
SE
9
0.7
SE
8
0.6
ESE
8
0.8
ESE
9
0.7
ESE
8
0.8
ESE
8
1.2
SSW
4
0.9
E
10
1
E
10
0.8
E
10
0.7
E
10
0.5
E
9
0.6
E
9
0.5
E
8
1.4
NE
6
1.1
NE
7
0.7
ENE
7
0.4
ENE
5
0.4
E
8
0.6
SE
3
1.4
SE
6
1.1
SE
7
cloud
cloud
cloud
cloud
cloud
rain showers
cloud
light rain
part cloud
clear
part cloud
light rain
clear
clear
part cloud
part cloud
cloud
part cloud
light rain
mod rain
heavy rain
part cloud
clear
part cloud
clear
clear
clear
part cloud
part cloud
part cloud
part cloud
cloud
part cloud
part cloud
part cloud
cloud
part cloud
part cloud
snow showers
light snow
cloud
cloud
light snow
cloud
cloud
cloud
cloud
cloudy
cloudy
cloudy
cloudy
cloudy
rain shwrs
cloudy
light rain
some clouds
clear
some clouds
light rain
clear
clear
some clouds
some clouds
cloudy
some clouds
light rain
mod rain
heavy rain
some clouds
clear
some clouds
clear
clear
clear
some clouds
some clouds
some clouds
some clouds
cloudy
some clouds
some clouds
some clouds
cloudy
some clouds
some clouds
snow shwrs
light snow
cloudy
cloudy
light snow
cloudy
cloudy
cloudy
cloudy
 km/h
25
SW
25
SW
20
SW
20
SSW
30
S
50
SSW
35
W
35
NW
40
NW
25
W
30
SSW
50
S
50
W
40
W
20
WNW
20
SSE
40
SSE
45
S
60
S
60
SSW
35
WNW
35
W
30
W
35
NW
20
NW
15
WSW
20
S
20
SSE
20
SSE
15
S
30
S
35
SW
25
WNW
20
WNW
20
WSW
20
W
10
W
20
SW
20
N
40
NE
30
NE
0
S
5
SSW
5
NE
30
SE
45
SSE
30
WSW
 mm 
4
1
4
3
9
12
max°C
11
5
10
6
9
11
8
6
2
0
1
7
5
5
5
2
8
11
11
12
11
0
2
2
-4
-1
-1
0
0
1
3
5
5
4
5
5
5
5
7
0
-3
-2
-2
-1
2
8
9
Moonrise
1:30
2:28
3:21
4:06
4:44
5:15
5:42
6:06
6:28
6:51
7:14
7:41
8:14
8:54
9:45
10:47
Moonset
10:13
10:59
11:53
12:54
2:00
3:08
4:18
5:28
6:40
7:53
9:08
10:27
11:46
1:02
2:10
Sunrise
7:01
6:58
6:56
6:56
6:54
6:52
6:50
6:48
6:47
6:46
6:43
6:41
6:41
6:39
6:37
6:35
Sunset
6:39
6:40
6:42
6:44
6:45
6:45
6:46
6:47
6:49
6:50
6:51
6:52
6:53
6:54
6:55
6:57
Today's sea temperature in Great Point, Nantucket Island is
3.7° C
(Statistics for 10 Mar 1981-2005 – mean: 4.8 max: 6.4 min: 2.8°C)
Issued (local time): 1 am Tuesday 10 Mar 2026
Forecast update inUpdates in  hr  min  sUpdate imminent
Nearest locationNearest