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 08:15 PM.

Days 1–4 Weather Summary

Some drizzle, heaviest during Sun afternoon. Warm air temperatures (max 26°C on Sun night, min 17°C on Mon morning). Winds decreasing (near gales from the SW on Sun morning, light winds from the E by Mon afternoon).

Days 5–7 Weather Summary

Some drizzle, heaviest during Thu night. Very warm air temperatures (max 30°C on Tue night, min 17°C on Thu night). Wind will be generally light.

Days 8–10 Weather Summary

Mostly dry. Warm (max 22°C on Mon morning, min 16°C on Sat morning). Wind will be generally light.

Days 11–13 Weather Summary

Light rain (total 9mm), mostly falling on Wed morning. Warm (max 23°C on Mon afternoon, min 16°C on Wed night). Wind will be generally light.

Sat
21
Sunday
22
Monday
23
Tuesday
24
Wednesday
25
Thursday
26
Friday
27
Saturday
28
Sunday
29
Monday
30
Tuesday
1
Wednesday
2
Thu
3
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
9:19PM1.22m
9:59AM0.87m
10:14PM1.26m
11:01AM0.87m
11:11PM1.30m
12:03PM0.87m
00:08AM1.31m
1:02PM0.87m
1:05AM1.30m
1:57PM0.89m
1:59AM1.28m
2:49PM0.90m
2:52AM1.23m
3:39PM0.91m
3:43AM1.16m
4:28PM0.93m
4:34AM1.08m
5:16PM0.94m
5:27AM1.00m
6:05PM0.96m
6:21AM0.92m
6:52PM0.98m
7:16AM0.86m
Low Tide
2:31PM0.05m
3:31AM-0.05m
3:27PM0.06m
4:30AM-0.10m
4:23PM0.06m
5:27AM-0.13m
5:18PM0.06m
6:21AM-0.13m
6:12PM0.06m
7:13AM-0.12m
7:06PM0.08m
8:05AM-0.09m
8:01PM0.09m
8:56AM-0.05m
8:57PM0.12m
9:46AM-0.01m
9:54PM0.14m
10:34AM0.04m
10:53PM0.16m
11:22AM0.09m
11:51PM0.17m
12:08PM0.14m
00:49AM0.18m
Wave
height (m) 
direction
period (s) 
0.7
SSW
6.0
0.7
SSW
4.0
1.4
SW
5.0
1.4
SW
6.0
1
SSW
6.0
0.8
SSW
6.0
0.7
SSW
6.0
0.6
SSE
7.0
0.6
SW
4.0
0.8
SW
4.0
0.7
SW
4.0
0.5
S
5.0
0.5
SE
9.0
0.4
SE
8.0
0.4
SE
9.0
0.5
SE
10.0
0.4
SSE
10.0
0.6
ESE
6.0
0.6
E
6.0
0.6
SE
9.0
0.8
ESE
5.0
0.8
ESE
5.0
0.9
E
6.0
0.8
ESE
6.0
0.8
ESE
7.0
0.7
SE
7.0
0.7
SE
7.0
0.6
SE
7.0
0.7
SE
7.0
0.6
SE
6.0
0.5
SSE
6.0
0.6
S
7.0
0.8
S
7.0
1
S
8.0
1.1
S
8.0
0.9
SSW
7.0
clear
part cloud
part cloud
rain showers
clear
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
part cloud
part cloud
rain showers
part cloud
clear
clear
cloud
cloud
part cloud
clear
clear
clear
clear
clear
clear
cloud
rain showers
light rain
light rain
clear
part cloud
part cloud
clear
some clouds
some clouds
rain shwrs
clear
clear
clear
clear
clear
clear
clear
clear
clear
some clouds
some clouds
some clouds
rain shwrs
some clouds
clear
clear
cloudy
cloudy
some clouds
clear
clear
clear
clear
clear
clear
cloudy
rain shwrs
light rain
light rain
clear
some clouds
some clouds
 km/h
10
S
25
SSW
50
SW
40
WSW
25
NE
15
ENE
10
SSE
25
SW
25
WSW
25
SW
20
NW
20
NE
20
E
10
ESE
10
SSE
15
SSE
10
N
20
NNE
20
ENE
20
E
25
E
25
SE
25
SSE
15
SSE
15
SSW
15
SSW
20
S
20
SSW
20
SW
15
SSW
10
SW
15
SSW
20
NNW
15
NE
15
S
15
SSW
 mm 
1
1
2
4
3
max°C
23
24
21
20
26
17
20
21
25
29
30
24
22
22
20
18
19
17
18
19
16
17
20
20
20
21
22
23
23
21
20
22
20
19
18
20
Moonrise
1:42
2:14
2:54
3:44
4:47
5:59
7:14
8:28
9:38
10:44
11:47
12:49
1:50
Moonset
4:17
5:38
6:57
8:09
9:08
9:54
10:30
10:58
11:21
11:41
12:00
12:19
Sunrise
5:07
5:07
5:07
5:07
5:07
5:09
5:09
5:09
5:09
5:09
5:11
5:11
Sunset
8:15
8:16
8:16
8:16
8:16
8:16
8:16
8:16
8:16
8:16
8:16
8:16
Today's sea temperature in Nantucket is 16.0 °C (Statistics for 21 Jun 1981-2005 – mean: 16.5 max: 20.0 min: 15.3°C)
Issued (local time): 1 pm Saturday 21 Jun 2025
Forecast update inUpdates in  hr  min  sUpdate imminent
Nearest