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 — and sunset is at 06:42 PM.

Days 1–4 Weather Summary

Light rain (total 5mm), mostly falling on Wed night. Icy conditions (max 12°C on Wed afternoon, min -1°C on Fri morning). Winds increasing (light winds from the SSW on Wed afternoon, gales from the W by Sat morning).

Days 5–7 Weather Summary

Moderate rain (total 11mm), heaviest on Mon night. Icy conditions (max 12°C on Mon afternoon, min -2°C on Sat night). Winds decreasing (gales from the W on Sat afternoon, light winds from the ENE by Sun morning).

Days 8–10 Weather Summary

Mostly dry. Freeze-thaw conditions (max 3°C on Tue night, min -2°C on Wed morning). Winds decreasing (strong winds from the WSW on Tue afternoon, light winds from the S by Thu night).

Days 11–13 Weather Summary

Mostly dry. Freeze-thaw conditions (max 14°C on Sun morning, min 0°C on Mon morning). Winds decreasing (near gales from the SW on Sat afternoon, light winds from the NW by Sun morning).

Wed
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
Wednesday
25
Thursday
26
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
High Tide
7:24PM0.69m
7:29AM0.93m
8:19PM0.68m
8:23AM0.93m
9:11PM0.69m
9:15AM0.94m
10:01PM0.71m
10:05AM0.96m
10:47PM0.76m
10:54AM0.97m
11:31PM0.81m
11:42AM0.98m
00:13AM0.88m
12:30PM0.98m
00:55AM0.96m
1:18PM0.97m
1:37AM1.03m
2:05PM0.95m
2:21AM1.10m
2:54PM0.93m
3:07AM1.14m
3:45PM0.89m
3:57AM1.16m
4:39PM0.85m
4:52AM1.16m
5:39PM0.81m
5:53AM1.14m
6:44PM0.79m
Low Tide
12:55PM0.10m
00:49AM0.22m
1:50PM0.12m
1:42AM0.23m
2:45PM0.12m
2:36AM0.21m
3:36PM0.11m
3:29AM0.18m
4:20PM0.09m
4:19AM0.13m
5:00PM0.06m
5:07AM0.07m
5:38PM0.03m
5:53AM0.00m
6:17PM0.01m
6:40AM-0.06m
6:56PM-0.01m
7:28AM-0.12m
7:39PM-0.02m
8:18AM-0.15m
8:24PM-0.02m
9:10AM-0.16m
9:13PM-0.01m
10:05AM-0.16m
10:06PM0.02m
11:03AM-0.13m
11:03PM0.04m
12:03PM-0.09m
Wave
height (m) 
direction
period (s) 
0.8
S
6
1.7
S
6
1.7
S
7
1.5
S
8
1.7
S
8
1.3
S
9
1.3
S
9
2.5
SSW
8
3
SW
10
2.5
SW
10
1.5
WSW
6
0.7
SSW
7
0.7
SSW
7
1.7
SSE
6
2.5
S
8
3.5
S
10
3
S
11
2.5
S
11
2.5
S
11
1.9
SSE
10
1.4
SSE
10
1.2
SSE
9
1.1
SE
9
0.9
SSE
9
0.8
SE
8
0.7
SE
8
0.8
SE
9
1.1
SE
10
1.2
ESE
10
1.6
SW
5
2.1
SW
6
1.5
SSW
7
1
SSE
8
0.9
SSE
7
1
E
4
1.3
ENE
5
1
ENE
6
0.8
E
5
0.7
ESE
8
0.6
ESE
8
0.6
SE
7
0.7
E
18
0.7
E
17
1.6
SSE
6
3
S
10
2.5
S
10
2.3
S
10
part cloud
rain showers
cloud
light rain
rain showers
part cloud
part cloud
part cloud
clear
clear
part cloud
part cloud
cloud
rain showers
part cloud
cloud
mod rain
cloud
clear
clear
part cloud
clear
clear
clear
clear
clear
part cloud
clear
part cloud
part cloud
part cloud
clear
clear
part cloud
cloud
cloud
cloud
cloud
cloud
cloud
cloud
cloud
cloud
mod rain
mod rain
mod rain
part cloud
some clouds
rain shwrs
cloudy
light rain
rain shwrs
some clouds
some clouds
some clouds
clear
clear
some clouds
some clouds
cloudy
rain shwrs
some clouds
cloudy
mod rain
cloudy
clear
clear
some clouds
clear
clear
clear
clear
clear
some clouds
clear
some clouds
some clouds
some clouds
clear
clear
some clouds
cloudy
cloudy
cloudy
cloudy
cloudy
cloudy
cloudy
cloudy
cloudy
mod rain
mod rain
mod rain
some clouds
 km/h
30
S
40
SSW
30
SW
30
NW
40
WNW
30
WSW
35
SW
60
SW
65
W
55
W
35
WNW
5
ENE
30
SE
50
SE
60
S
65
S
30
W
30
WNW
45
WSW
25
NW
25
WNW
25
SW
20
NNW
20
NE
15
ENE
10
S
20
SSW
30
SW
30
SSW
45
SW
50
SW
35
WSW
25
ENE
25
ENE
30
E
35
ENE
25
ENE
15
SE
15
SSE
20
SSW
10
WSW
25
SW
20
S
45
SSE
40
S
40
W
50
WNW
 mm 
2
2
1
1
10
7
9
7
max°C
12
12
8
5
3
0
2
8
5
5
4
-2
1
9
11
12
11
2
2
3
-2
-1
1
0
-1
0
1
2
5
6
7
13
14
6
3
1
0
1
2
7
12
10
11
13
10
6
1
Moonrise
3:21
4:06
4:44
5:15
5:42
6:06
6:29
6:51
7:15
7:42
8:14
8:55
9:46
10:48
11:58
Moonset
11:53
12:54
2:00
3:09
4:18
5:29
6:40
7:53
9:08
10:26
11:45
1:01
2:09
3:06
Sunrise
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
6:33
Sunset
6:42
6:43
6:44
6:45
6:45
6:46
6:47
6:49
6:50
6:52
6:52
6:53
6:54
6:55
6:57
6:58
Today's sea temperature in Nantucket is
3.8° C
(Statistics for 11 Mar 1981-2005 – mean: 4.9 max: 6.6 min: 3.0°C)
Issued (local time): 1 pm Wednesday 11 Mar 2026
Forecast update inUpdates in  hr  min  sUpdate imminent
Nearest locationNearest