Nantucket Sea Conditions and Tide Table

Nantucket 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 05:15 PM.

Days 1–3 Weather Summary

Heavy rain (total 28mm), heaviest during Sun morning. Icy conditions (max 10°C on Sun afternoon, min -9°C on Tue night). Winds increasing (light winds from the ESE on Sun morning, gales from the W by Sun night).

Days 4–6 Weather Summary

A moderate fall of snow, heaviest on Thu morning. Air temperatures will be below freezing (max 0°C on Fri afternoon, min -9°C on Wed morning). Mainly near gales.

Days 7–9 Weather Summary

Mostly dry. Freeze-thaw conditions (max 2°C on Mon night, min -6°C on Sat morning). Wind will be generally light.

Days 10–12 Weather Summary

Light rain (total 7mm) at first, then becoming colder with a dusting of snow on Wed morning. Freeze-thaw conditions (max 5°C on Fri morning, min -4°C on Wed night). Winds decreasing (strong winds from the WNW on Wed night, light winds from the WSW by Thu afternoon).

Sunday
16
Monday
17
Tuesday
18
Wednesday
19
Thursday
20
Friday
21
Saturday
22
Sunday
23
Monday
24
Tuesday
25
Wednesday
26
Thursday
27
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
2:48PM0.87m
3:05AM0.92m
3:31PM0.82m
3:45AM0.92m
4:17PM0.77m
4:29AM0.93m
5:08PM0.72m
5:17AM0.93m
6:03PM0.69m
6:09AM0.94m
6:58PM0.66m
7:02AM0.96m
7:52PM0.66m
7:55AM0.99m
8:45PM0.67m
8:47AM1.02m
9:35PM0.70m
9:38AM1.06m
10:24PM0.76m
10:30AM1.09m
11:12PM0.83m
11:21AM1.10m
11:59PM0.91m
Low Tide
8:19AM0.06m
8:34PM0.09m
9:06AM0.07m
9:15PM0.12m
9:55AM0.08m
9:57PM0.16m
10:44AM0.09m
10:41PM0.19m
11:35AM0.11m
11:27PM0.22m
12:29PM0.11m
00:16AM0.23m
1:25PM0.10m
1:09AM0.22m
2:19PM0.08m
2:03AM0.18m
3:09PM0.05m
2:56AM0.13m
3:55PM0.00m
3:49AM0.07m
4:38PM-0.04m
4:40AM-0.00m
5:21PM-0.08m
5:31AM-0.07m
Wave
height (m) 
direction
period (s) 
1.4
SE
6
3
S
9
3.5
S
12
3
SSW
12
3
SSW
11
2.5
SW
10
2.1
W
6
2.1
W
6
1.9
W
6
1.2
W
5
0.8
W
4
0.4
WSW
5
0.6
NNE
3
1.3
NW
4
1.5
S
9
1.2
S
10
1
SSE
10
0.9
NE
5
0.7
E
9
0.5
ESE
8
0.4
SSW
6
0.4
S
6
0.4
NNW
4
0.3
NNE
4
0.4
SE
10
0.4
SE
9
0.4
ESE
4
0.6
SE
9
0.9
SE
9
1.2
SE
9
1.3
ESE
10
1.6
SE
9
1.6
SE
9
1
ESE
9
0.6
ESE
8
0.5
SE
8
heavy rain
heavy rain
rain showers
cloud
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
cloud
light snow
mod snow
light snow
part cloud
part cloud
clear
clear
part cloud
part cloud
part cloud
part cloud
part cloud
cloud
cloud
cloud
part cloud
part cloud
part cloud
mod rain
light snow
part cloud
clear
clear
clear
part cloud
heavy rain
heavy rain
rain shwrs
cloudy
some clouds
some clouds
some clouds
some clouds
some clouds
some clouds
cloudy
light snow
mod snow
light snow
some clouds
some clouds
clear
clear
some clouds
some clouds
some clouds
some clouds
some clouds
cloudy
cloudy
cloudy
some clouds
some clouds
some clouds
mod rain
light snow
some clouds
clear
clear
clear
some clouds
 km/h
20
ESE
55
SSW
70
W
65
W
65
W
60
WNW
60
WNW
60
WNW
55
WNW
30
WNW
25
WNW
10
W
30
NNE
50
NW
35
NW
30
NW
25
NW
30
NW
25
NW
15
W
15
NNW
15
NNW
15
NNE
10
E
15
ESE
10
E
5
NNW
15
SSW
20
SSE
25
ESE
10
NW
25
WNW
40
WNW
25
NW
5
WSW
15
SSE
 mm 
16
11
1.0
7
max°C
7
10
7
-3
-2
-4
-6
-5
-6
-6
-4
-4
-1
-2
-4
-2
0
-2
-4
-2
-2
-1
-1
0
1
1
2
3
3
3
1
3
0
-3
-2
2
Moonrise
9:32
10:34
11:37
12:41
1:45
2:47
3:44
4:33
5:13
5:47
6:15
Moonset
8:15
8:34
8:55
9:20
9:51
10:29
11:17
12:15
1:23
2:38
3:55
5:13
Sunrise
6:33
6:31
6:31
6:28
6:28
6:26
6:24
6:22
6:22
6:20
6:18
6:16
Sunset
5:15
5:15
5:17
5:19
5:20
5:21
5:22
5:23
5:24
5:25
5:27
5:28
Today's sea temperature in Nantucket is 2.2 °C (Statistics for 16 Feb 1981-2005 – mean: 5.0 max: 6.4 min: 3.6°C)
Issued (local time): 6 am Sunday 16 Feb 2025
Forecast update inUpdates in  hr  min  sUpdate imminent
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