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 08:10 PM.

Days 1–4 Weather Summary

Light rain (total 9mm), mostly falling on Sat afternoon. Warm air temperatures (max 23°C on Fri afternoon, min 20°C on Sat afternoon). Winds decreasing (near gales from the SSW on Sat night, light winds from the N by Mon morning).

Days 5–7 Weather Summary

Heavy rain (total 41mm), heaviest during Tue night. Warm air temperatures (max 23°C on Wed morning, min 20°C on Tue morning). Winds decreasing (strong winds from the SSW on Tue night, light winds from the NNW by Thu morning).

Days 8–10 Weather Summary

Mostly dry. Warm (max 22°C on Thu afternoon, min 19°C on Fri night). Wind will be generally light.

Days 11–13 Weather Summary

Heavy rain (total 22mm), heaviest during Mon morning. Warm (max 23°C on Sun night, min 19°C on Tue morning). Winds increasing (calm on Sun afternoon, strong winds from the S by Wed afternoon).

Days 14–17 Weather Summary

Light rain (total 7mm), mostly falling on Sat night. Warm (max 23°C on Wed afternoon, min 20°C on Sat afternoon). Winds decreasing (strong winds from the S on Wed afternoon, light winds from the S by Thu night).

Fri
17
Saturday
18
Sunday
19
Monday
20
Tuesday
21
Wednesday
22
Thursday
23
Friday
24
Saturday
25
Sunday
26
Monday
27
Tuesday
28
Wednesday
29
Thursday
30
Friday
31
Saturday
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
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
Wave Height Map
Wave Height Map
Wave Height Map
Wave Height Map
Wave Height Map
Wave Height Map
Wave Height Map
Wave Height Map
Wave Height Map
Wave Height Map
Wave Height Map
Wave Height Map
Wave Height Map
Wave Height Map
Wave Height Map
Wave Height Map
Wave Height Map
High Tide
3:07PM1.01m
3:22AM1.07m
3:57PM1.01m
4:15AM1.02m
4:48PM0.99m
5:09AM0.96m
5:39PM0.97m
6:06AM0.90m
6:31PM0.95m
7:03AM0.85m
7:23PM0.93m
8:01AM0.81m
8:16PM0.92m
9:00AM0.79m
9:11PM0.92m
9:58AM0.79m
10:04PM0.93m
10:49AM0.80m
10:52PM0.94m
11:34AM0.82m
11:35PM0.96m
12:15PM0.84m
00:16AM0.98m
12:54PM0.86m
00:56AM0.99m
1:32PM0.88m
1:36AM0.99m
2:09PM0.91m
Low Tide
8:51PM0.00m
9:24AM-0.05m
9:45PM0.02m
10:14AM-0.00m
10:40PM0.05m
11:04AM0.05m
11:37PM0.09m
11:56AM0.11m
00:35AM0.11m
12:48PM0.16m
1:32AM0.13m
1:40PM0.19m
2:30AM0.14m
2:34PM0.21m
3:28AM0.13m
3:28PM0.21m
4:21AM0.12m
4:19PM0.20m
5:06AM0.10m
5:04PM0.18m
5:46AM0.08m
5:47PM0.16m
6:25AM0.05m
6:28PM0.14m
7:02AM0.04m
7:09PM0.12m
7:39AM0.03m
7:50PM0.10m
Wave
Height (m)
Direction
Period (s)
0.3
ESE
14
0.6
SSW
3
0.7
SSW
4
1.3
SSW
5
1.4
SSW
5
1
NW
4
0.5
S
7
0.5
S
7
0.4
SSE
8
0.4
SSE
8
0.4
SSE
7
0.5
SSE
3
0.7
SE
4
1.5
S
5
1.6
S
5
1.8
SSE
10
1.3
SSE
10
1.2
SSE
10
1.1
SSE
9
0.9
SSE
8
0.8
SE
8
0.8
SE
7
0.6
SE
7
0.6
SE
8
0.6
SE
8
0.6
ESE
7
0.4
ESE
7
0.5
SE
7
0.6
SE
6
0.9
SW
4
0.7
SW
4
0.6
SW
3
0.7
SE
9
0.7
SSE
8
0.4
SSE
7
1
S
4
1.4
SSE
6
0.9
SSE
6
0.6
SSE
8
0.5
SSE
7
0.6
SSE
9
0.4
SSE
9
0.6
SSE
9
0.5
SE
8
0.4
SE
8
0.9
SSE
4
1.1
SE
5
clear
part cloud
part cloud
rain showers
mod rain
thunderstorm
clear
clear
clear
clear
clear
part cloud
cloud
heavy rain
rain showers
mod rain
thunderstorm
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
rain showers
thunderstorm
thunderstorm
thunderstorm
part cloud
part cloud
part cloud
light rain
rain showers
part cloud
clear
clear
clear
part cloud
part cloud
clear
part cloud
cloud
rain showers
clear
some clouds
some clouds
rain shwrs
mod rain
risk tstorm
clear
clear
clear
clear
clear
some clouds
cloudy
heavy rain
rain shwrs
mod rain
risk tstorm
some clouds
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
rain shwrs
risk tstorm
risk tstorm
risk tstorm
some clouds
some clouds
some clouds
light rain
rain shwrs
some clouds
clear
clear
clear
some clouds
some clouds
clear
some clouds
cloudy
rain shwrs
km/h
15
SSW
25
SW
30
SSW
50
SSW
45
SW
35
NNW
10
SE
25
N
10
N
15
S
15
S
25
SSE
30
SSE
45
SW
45
SSW
45
SSW
25
SSW
5
NNW
25
SW
20
NNE
20
NE
15
ENE
0
WSW
5
S
20
S
15
WSW
10
NW
5
SSE
20
SW
30
SW
10
W
25
SW
30
N
20
N
15
SSW
40
SSE
45
S
20
WSW
10
NW
10
E
10
SSW
15
SSE
15
SSW
20
SSW
20
SSE
40
SSE
30
SE
 mm
2
6
1
22
4
8
7
1
5
5
8
1
2
6
max °C
23
23
22
22
22
23
22
22
21
22
21
21
22
22
23
23
23
21
22
22
20
20
20
20
21
21
21
22
23
22
23
21
21
20
20
20
23
23
23
22
22
22
22
23
23
22
22
Moonrise
10:17
11:25
12:30
1:36
2:40
3:44
4:45
5:42
6:31
7:13
7:48
8:17
8:42
9:05
9:25
Moonset
10:15
10:37
10:58
11:20
11:44
12:12
12:46
1:26
2:14
3:10
4:12
5:16
6:22
7:28
8:33
Sunrise
5:20
5:22
5:22
5:24
5:24
5:26
5:26
5:28
5:28
5:28
5:30
5:31
5:31
5:33
5:33
Sunset
8:10
8:09
8:08
8:07
8:07
8:07
8:06
8:05
8:04
8:02
8:01
8:00
8:00
7:59
7:58
7:57
Today's sea temperature in Great Point, Nantucket Island is
19.8° C
(Statistics for 17 Jul 1981-2005 – mean: 19.8 max: 22.2 min: 18.2°C)
Issued (local time): 1 pm Friday 17 Jul 2026
Forecast update inUpdates in  hr  min  sUpdate imminent
Nearest locationNearest