Wychmere Harbor, Nantucket Sound Sea Conditions and Tide Table

Wychmere Harbor, Nantucket Sound 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 06:11 AM and sunset is at 05:32 PM.

Days 1–3 Weather Summary

A dusting of snow. Milder later with heavy rain (total 36mm) on Thu night. Icy conditions (max 8°C on Tue night, min -2°C on Tue morning). Winds increasing (calm on Thu morning, fresh winds from the ENE by Thu night).

Days 4–6 Weather Summary

Light rain (total 2mm), mostly falling on Sat night. Icy conditions (max 9°C on Sat afternoon, min 0°C on Fri afternoon). Mainly fresh winds.

Days 7–9 Weather Summary

A moderate fall of snow, heaviest on Wed morning. Freeze-thaw conditions (max 15°C on Tue afternoon, min -1°C on Wed night). Winds increasing (light winds from the W on Tue afternoon, fresh winds from the NE by Wed afternoon).

Days 10–12 Weather Summary

Heavy rain (total 38mm), mainly falling on Sat night. Becoming colder with a light covering of snow, mostly falling on Sat night. Freeze-thaw conditions (max 11°C on Fri night, min -1°C on Fri morning). Mainly strong winds.

Tuesday
3
Wednesday
4
Thursday
5
Friday
6
Saturday
7
Sunday
8
Monday
9
Tuesday
10
Wednesday
11
Thursday
12
Friday
13
Saturday
14
Sunday
15
Monday
16
Tuesday
17
Wed
18
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
AM
PM
Wave Height Map
High Tide
11:51AM1.26m
00:19AM1.19m
12:38PM1.24m
1:00AM1.20m
1:22PM1.21m
1:40AM1.20m
2:04PM1.16m
2:19AM1.18m
2:45PM1.11m
2:58AM1.15m
3:28PM1.05m
3:40AM1.12m
4:15PM0.98m
4:27AM1.08m
5:08PM0.93m
5:20AM1.04m
6:04PM0.90m
6:16AM1.02m
7:03PM0.88m
7:15AM1.02m
8:03PM0.90m
8:14AM1.05m
8:58PM0.94m
9:08AM1.09m
9:45PM1.01m
9:56AM1.14m
10:27PM1.07m
10:40AM1.19m
Low Tide
5:39PM-0.08m
5:55AM-0.05m
6:21PM-0.06m
6:39AM-0.05m
7:01PM-0.02m
7:23AM-0.03m
7:41PM0.02m
8:05AM-0.00m
8:21PM0.08m
8:49AM0.05m
9:03PM0.14m
9:36AM0.10m
9:48PM0.20m
10:28AM0.15m
10:39PM0.24m
11:23AM0.18m
11:33PM0.27m
12:20PM0.20m
00:30AM0.27m
1:17PM0.19m
1:27AM0.26m
2:13PM0.16m
2:23AM0.21m
3:03PM0.11m
3:14AM0.15m
3:47PM0.05m
4:00AM0.07m
4:28PM0.00m
Wave
height (m) 
direction
period (s) 
0.4
E
8
0.5
SE
4
0.8
ESE
7
0.6
SE
8
0.5
SE
8
0.4
SE
8
0.4
SE
8
0.3
ESE
8
0.7
E
4
1.2
ENE
7
1.4
ENE
8
1.1
E
9
0.9
E
9
0.9
E
9
1.1
SSE
6
0.6
E
9
0.5
E
9
0.5
E
9
0.4
E
10
0.5
E
9
0.6
SSW
3
0.7
SSW
4
0.5
E
10
0.5
E
10
1
ENE
5
1.3
ENE
7
1.3
ENE
8
1.1
E
8
1
E
8
0.8
E
8
0.8
ENE
8
0.7
ENE
8
0.7
ENE
8
0.6
ESE
6
0.5
ESE
6
1.1
ENE
5
1.3
ENE
7
1.5
ENE
7
1.5
E
8
1.4
E
9
1.3
E
10
1.1
E
10
1.2
E
9
1.1
SSE
6
1.1
NE
7
0.9
NNW
4
0.9
NNW
4
part cloud
light snow
rain showers
clear
clear
part cloud
cloud
cloud
heavy rain
cloud
cloud
cloud
part cloud
cloud
rain showers
part cloud
clear
clear
part cloud
clear
cloud
part cloud
cloud
part cloud
light snow
light snow
mod snow
light snow
cloud
part cloud
cloud
cloud
light rain
light rain
heavy rain
light snow
cloud
cloud
cloud
cloud
cloud
cloud
part cloud
part cloud
clear
clear
part cloud
some clouds
light snow
rain shwrs
clear
clear
some clouds
cloudy
cloudy
heavy rain
cloudy
cloudy
cloudy
some clouds
cloudy
rain shwrs
some clouds
clear
clear
some clouds
clear
cloudy
some clouds
cloudy
some clouds
light snow
light snow
mod snow
light snow
cloudy
some clouds
cloudy
cloudy
light rain
light rain
heavy rain
light snow
cloudy
cloudy
cloudy
cloudy
cloudy
cloudy
some clouds
some clouds
clear
clear
some clouds
 km/h
20
S
20
ESE
30
WSW
15
NW
10
SSW
15
SSW
0
NE
15
NNE
20
ENE
25
NE
25
NE
20
E
20
S
25
SSW
35
SW
15
NW
10
SSW
20
SW
15
SW
25
SSW
30
SW
30
SW
20
WSW
20
ENE
30
ENE
35
NE
30
ENE
25
NE
30
N
20
NNE
20
E
25
SSE
20
SSE
15
SW
10
SW
35
NE
35
NE
40
ENE
35
ENE
25
ENE
20
NE
10
WSW
45
SW
35
SW
40
NW
30
NW
35
NW
 mm 
7
15
14
2
2
3
14
19
max°C
-1
2
8
6
6
5
2
2
3
1
1
2
4
9
9
7
8
9
12
10
10
11
15
11
1
0
0
0
1
1
0
1
11
10
9
4
1
0
2
2
2
3
8
10
6
1
2
Moonrise
6:00
7:07
8:13
9:18
10:24
12:28
1:31
2:30
3:22
4:07
4:45
5:16
5:43
6:07
6:29
Moonset
6:13
6:34
6:54
7:14
7:37
9:03
9:34
10:12
10:58
11:52
12:53
1:59
3:08
4:18
5:28
6:40
Sunrise
6:11
6:09
6:07
6:05
6:05
7:03
6:01
6:00
5:58
5:56
5:54
5:52
5:52
5:50
5:48
5:46
Sunset
5:32
5:34
5:35
5:36
5:37
6:37
5:39
5:40
5:42
5:43
5:44
5:45
5:45
5:47
5:49
5:50
Today's sea temperature in Wychmere Harbor, Nantucket Sound is
3.0° C
(Statistics for 03 Mar 1981-2005 – mean: 4.2 max: 5.5 min: 3.0°C)
Issued (local time): 12 pm Tuesday 03 Mar 2026
Forecast update inUpdates in  hr  min  sUpdate imminent
Nearest locationNearest