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 — and sunset is at 07:23 PM.

Days 1–4 Weather Summary

Light rain (total 7mm), mostly falling on Wed morning. Low air temperatures (max 8°C on Mon afternoon, min 4°C on Tue afternoon). Winds decreasing (strong winds from the NW on Sun night, light winds from the E by Tue afternoon).

Days 5–7 Weather Summary

Mostly dry. Low air temperatures (max 9°C on Wed night, min 6°C on Fri night). Wind will be generally light.

Days 8–10 Weather Summary

Light rain (total 2mm), mostly falling on Tue afternoon. Mild temperatures (max 8°C on Sun morning, min 6°C on Sat night). Winds increasing (calm on Sat night, fresh winds from the SE by Tue afternoon).

Days 11–13 Weather Summary

Heavy rain (total 55mm), heaviest during Wed morning. Very mild (max 11°C on Tue night, min 6°C on Fri morning). Winds increasing (light winds from the E on Wed night, near gales from the NNW by Thu morning).

Monday
20
Tuesday
21
Wednesday
22
Thursday
23
Friday
24
Saturday
25
Sunday
26
Monday
27
Tuesday
28
Wednesday
29
Thursday
30
Friday
1
Saturday
2
Sunday
3
Monday
4
Tue
5
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
night
AM
Wave Height Map
High Tide
2:19AM1.14m
3:00PM0.98m
3:11AM1.12m
3:54PM0.95m
4:05AM1.08m
4:53PM0.91m
5:06AM1.03m
5:57PM0.88m
6:13AM0.98m
7:04PM0.88m
7:22AM0.94m
8:10PM0.89m
8:31AM0.93m
9:13PM0.91m
9:36AM0.93m
10:08PM0.94m
10:34AM0.93m
10:56PM0.97m
11:23AM0.93m
11:37PM0.99m
12:06PM0.93m
00:14AM1.00m
12:47PM0.92m
00:51AM1.00m
1:27PM0.90m
1:29AM0.99m
2:07PM0.88m
Low Tide
7:55PM-0.03m
8:33AM-0.13m
8:45PM-0.00m
9:25AM-0.10m
9:38PM0.04m
10:22AM-0.05m
10:37PM0.08m
11:24AM-0.01m
11:41PM0.11m
12:28PM0.03m
00:47AM0.13m
1:31PM0.05m
1:54AM0.12m
2:33PM0.07m
3:00AM0.10m
3:32PM0.07m
4:00AM0.07m
4:23PM0.07m
4:52AM0.04m
5:08PM0.07m
5:37AM0.02m
5:48PM0.08m
6:18AM0.01m
6:27PM0.09m
6:58AM0.01m
7:05PM0.11m
7:37AM0.02m
7:43PM0.13m
Wave
height (m) 
direction
period (s) 
1
WNW
4
0.5
E
7
0.7
E
7
0.8
NNE
4
0.6
E
8
0.5
E
8
0.6
SW
3
0.9
SSW
4
0.8
SSW
4
0.6
E
8
0.6
E
8
0.5
E
7
0.5
E
6
0.5
NW
2
0.4
NE
4
0.4
ENE
15
0.6
ENE
15
0.6
ENE
14
0.5
E
14
0.4
ENE
14
0.4
ENE
14
0.4
ENE
13
0.5
ENE
12
0.5
ENE
12
0.5
ENE
11
0.8
ESE
4
0.8
ESE
4
1.2
SE
5
1.1
E
6
1
E
6
1.2
ESE
7
1.6
NW
5
1.5
E
8
1.6
ENE
8
1.5
E
9
1.3
E
8
1.1
E
8
1.3
E
11
1.1
ENE
10
0.9
ENE
10
0.8
ENE
10
0.9
ENE
10
0.7
ENE
11
0.5
ENE
11
0.6
ENE
11
0.8
ENE
11
0.6
ENE
11
rain showers
clear
cloud
rain showers
part cloud
clear
part cloud
light rain
light rain
part cloud
part cloud
part cloud
part cloud
clear
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
clear
clear
clear
clear
part cloud
part cloud
light rain
heavy rain
heavy rain
light rain
heavy rain
light rain
cloud
light rain
cloud
cloud
part cloud
cloud
part cloud
part cloud
clear
part cloud
part cloud
clear
part cloud
part cloud
part cloud
rain shwrs
clear
cloudy
rain shwrs
some clouds
clear
some clouds
light rain
light rain
some clouds
some clouds
some clouds
some clouds
clear
some clouds
some clouds
some clouds
some clouds
some clouds
some clouds
clear
clear
clear
clear
some clouds
some clouds
light rain
heavy rain
heavy rain
light rain
heavy rain
light rain
cloudy
light rain
cloudy
cloudy
some clouds
cloudy
some clouds
some clouds
clear
some clouds
some clouds
clear
some clouds
some clouds
some clouds
 km/h
30
NW
15
W
20
W
35
NNE
20
NNE
10
E
30
SW
40
SSW
25
SSW
10
N
20
N
15
ENE
15
W
20
NNW
15
ENE
15
NNE
20
NE
15
NE
0
NNE
10
NE
20
ENE
10
NE
20
NE
20
E
15
SE
30
SE
25
SE
35
SSE
30
SE
25
SE
45
NNW
55
NNW
45
N
35
NNE
30
NE
30
NE
30
NNE
35
NNE
25
NNE
25
NW
20
W
25
SW
20
N
15
WSW
25
WSW
25
WSW
25
WSW
 mm 
1
2
3
1
2
14
15
5
15
4
2
max°C
7
6
8
7
5
5
6
6
8
9
8
9
8
8
8
6
6
6
7
8
8
8
8
8
7
7
8
11
11
11
10
8
8
7
6
7
8
8
8
9
10
12
13
11
13
12
12
Moonrise
7:37
8:38
9:47
11:02
12:17
1:29
2:38
3:44
4:48
5:52
6:57
8:01
9:05
10:07
11:04
Moonset
10:44
11:58
1:00
1:49
2:27
2:57
3:22
3:43
4:04
4:24
4:45
5:09
5:36
6:09
6:49
7:37
Sunrise
5:52
5:52
5:50
5:48
5:47
5:46
5:43
5:43
5:41
5:39
5:39
5:37
5:35
5:35
5:33
5:33
Sunset
7:23
7:24
7:25
7:27
7:28
7:29
7:30
7:30
7:31
7:34
7:35
7:36
7:37
7:37
7:38
7:39
Today's sea temperature in Great Point, Nantucket Island is
6.3° C
(Statistics for 19 Apr 1981-2005 – mean: 7.0 max: 8.7 min: 5.5°C)
Issued (local time): 7 pm Sunday 19 Apr 2026
Forecast update inUpdates in  hr  min  sUpdate imminent
Nearest locationNearest