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 06:33 AM and sunset is at 06:58 PM.

Days 1–3 Weather Summary

Moderate rain (total 13mm), heaviest on Fri night. Low air temperatures (max 7°C on Wed morning, min 1°C on Thu morning). Winds increasing (calm on Wed morning, near gales from the WSW by Thu night).

Days 4–6 Weather Summary

Moderate rain (total 17mm), heaviest on Mon night. Cool air temperatures (max 10°C on Sat morning, min 2°C on Sat night). Winds increasing (calm on Mon morning, strong winds from the NNE by Mon night).

Days 7–9 Weather Summary

Light rain (total 3mm), mostly falling on Thu night. Freeze-thaw conditions (max 4°C on Thu night, min 0°C on Tue afternoon). Winds decreasing (strong winds from the NNE on Tue afternoon, light winds from the E by Wed night).

Days 10–12 Weather Summary

Heavy rain (total 20mm), heaviest during Sat night. Very mild (max 11°C on Sat night, min 3°C on Mon morning). Winds increasing (light winds from the E on Fri night, near gales from the NW by Sun night).

Wednesday
26
Thursday
27
Friday
28
Saturday
29
Sunday
30
Monday
31
Tuesday
1
Wednesday
2
Thursday
3
Friday
4
Saturday
5
Sunday
6
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
High Tide
9:58AM0.96m
10:34PM0.91m
10:51AM1.02m
11:20PM0.99m
11:41AM1.06m
00:05AM1.06m
12:30PM1.08m
00:51AM1.11m
1:20PM1.09m
1:38AM1.14m
2:11PM1.06m
2:27AM1.15m
3:03PM1.03m
3:17AM1.12m
3:56PM0.97m
4:10AM1.08m
4:54PM0.91m
5:09AM1.02m
5:58PM0.86m
6:14AM0.96m
7:07PM0.83m
7:23AM0.92m
8:16PM0.82m
Low Tide
4:06PM0.02m
4:23AM0.03m
4:54PM-0.04m
5:15AM-0.05m
5:41PM-0.08m
6:04AM-0.12m
6:27PM-0.11m
6:54AM-0.16m
7:14PM-0.11m
7:44AM-0.18m
8:01PM-0.09m
8:35AM-0.16m
8:51PM-0.05m
9:28AM-0.12m
9:42PM0.00m
10:24AM-0.07m
10:38PM0.06m
11:25AM-0.00m
11:40PM0.12m
12:31PM0.05m
00:46AM0.16m
1:37PM0.08m
1:54AM0.16m
Wave
height (m) 
direction
period (s) 
0.7
SE
8
0.6
SE
8
0.8
SE
8
0.8
WNW
4
1
WSW
4
0.6
WSW
3
0.9
W
4
0.7
WSW
4
0.5
S
3
1
SW
4
0.9
SSE
9
0.9
SSE
9
1
E
4
1.2
ESE
5
1.1
E
6
0.8
SSE
7
1.3
SSW
4
1
SE
9
1.6
NE
6
1.8
NE
7
1.4
NE
8
1.3
ENE
7
1.1
E
8
1
E
8
0.9
E
8
0.9
E
8
1
E
7
1
ESE
5
0.9
E
8
0.7
ESE
7
0.8
ESE
7
0.9
ESE
7
0.9
E
8
1.2
W
4
1.3
WNW
5
1.4
NW
5
light rain
light rain
rain showers
clear
part cloud
part cloud
part cloud
cloud
mod rain
part cloud
cloud
light rain
light rain
cloud
mod rain
cloud
cloud
light rain
cloud
cloud
cloud
cloud
part cloud
part cloud
clear
part cloud
light rain
mod rain
light rain
cloud
cloud
light rain
heavy rain
cloud
part cloud
clear
light rain
light rain
rain shwrs
clear
some clouds
some clouds
some clouds
cloudy
mod rain
some clouds
cloudy
light rain
light rain
cloudy
mod rain
cloudy
cloudy
light rain
cloudy
cloudy
cloudy
cloudy
some clouds
some clouds
clear
some clouds
light rain
mod rain
light rain
cloudy
cloudy
light rain
heavy rain
cloudy
some clouds
clear
 km/h
5
NNW
15
NNE
30
NW
30
WNW
40
WSW
25
SW
35
WNW
25
WSW
25
SSE
40
WSW
25
NNE
25
ENE
35
ESE
35
ESE
35
SW
20
SSW
40
SSW
30
N
45
NE
45
NNE
40
NNE
30
ENE
25
ENE
10
E
15
ESE
25
ESE
30
SSE
25
ESE
20
E
10
NNE
25
S
25
SSW
30
SW
45
WNW
45
WNW
55
NW
 mm 
2.0
1.0
1.0
9
4
2.0
6
5
3
6
1.0
2.0
11
max°C
7
5
5
3
6
7
6
6
7
10
7
3
3
5
10
8
10
9
3
1
2
2
1
1
2
2
4
6
7
8
8
8
11
10
9
7
Moonrise
5:13
5:39
6:03
6:27
6:52
7:21
7:56
8:40
9:33
10:36
11:44
12:54
Moonset
3:43
5:00
6:18
7:38
8:59
10:21
11:42
12:57
2:01
2:52
3:32
Sunrise
6:33
6:31
6:30
6:28
6:26
6:24
6:24
6:22
6:20
6:18
6:16
6:15
Sunset
6:58
6:59
7:00
7:00
7:01
7:02
7:04
7:05
7:06
7:07
7:08
7:09
Today's sea temperature in Great Point, Nantucket Island is 5.3 °C (Statistics for 26 Mar 1981-2005 – mean: 5.3 max: 6.9 min: 4.1°C)
Issued (local time): 7 am Wednesday 26 Mar 2025
Forecast update inUpdates in  hr  min  sUpdate imminent
Nearest