Montauk Harbor entrance, Long Island Sound Sea Conditions and Tide Table

Montauk Harbor entrance, Long Island 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 06:58 AM and sunset is at 04:19 PM.

Days 1–3 Weather Summary

Mostly dry. Icy conditions (max 8°C on Tue night, min -5°C on Mon morning). Winds increasing (calm on Mon night, near gales from the SW by Tue night).

Days 4–6 Weather Summary

Light rain (total 6mm), mostly falling on Fri night. Cool air temperatures (max 10°C on Wed afternoon, min 2°C on Fri night). Winds decreasing (near gales from the SW on Wed afternoon, calm by Fri afternoon).

Days 7–9 Weather Summary

Drizzle at first, then turning colder with dusting of snow on Sat afternoon. Freeze-thaw conditions (max 6°C on Mon morning, min -5°C on Sat night). Mainly near gales.

Days 10–12 Weather Summary

Mostly dry. Freeze-thaw conditions (max 6°C on Wed night, min -5°C on Tue night). Winds decreasing (near gales from the WSW on Wed morning, light winds from the NNE by Thu night).

Sunday
7
Monday
8
Tuesday
9
Wednesday
10
Thursday
11
Friday
12
Saturday
13
Sunday
14
Monday
15
Tuesday
16
Wednesday
17
Thursday
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
Wave Height Map
High Tide
10:16AM0.80m
10:58PM0.58m
11:12AM0.73m
11:57PM0.57m
12:11PM0.66m
00:58AM0.56m
1:14PM0.60m
2:01AM0.57m
2:19PM0.54m
3:04AM0.58m
3:25PM0.50m
4:02AM0.59m
4:27PM0.47m
4:54AM0.61m
5:21PM0.45m
5:39AM0.62m
6:08PM0.45m
6:19AM0.64m
6:49PM0.45m
6:56AM0.65m
7:27PM0.45m
7:32AM0.66m
8:05PM0.46m
Low Tide
5:13PM-0.08m
5:18AM0.02m
6:07PM-0.05m
6:20AM0.05m
7:02PM-0.01m
7:24AM0.08m
7:58PM0.03m
8:30AM0.09m
8:53PM0.05m
9:34AM0.09m
9:47PM0.07m
10:34AM0.09m
10:38PM0.09m
11:29AM0.07m
11:25PM0.09m
12:18PM0.06m
00:10AM0.09m
1:02PM0.04m
00:53AM0.09m
1:44PM0.03m
1:34AM0.09m
2:24PM0.01m
2:15AM0.09m
Wave
height (m) 
direction
period (s) 
0.6
SE
8
0.7
ESE
8
1.1
W
4
1.3
N
5
0.9
N
4
0.4
ESE
8
0.2
ESE
9
0.5
S
3
1.8
SSW
7
1.3
SSW
7
2.5
S
8
2.1
S
9
1.4
S
9
1.3
S
9
0.9
S
8
0.5
S
8
0.4
SSE
7
0.4
SSE
7
0.5
E
4
1.2
WSW
4
1.8
NW
5
1.4
WNW
5
1.4
WNW
5
0.7
W
4
0.9
SW
5
1.4
SSW
6
1.1
S
8
1
S
8
1.1
NNW
4
0.9
NNW
4
0.8
WSW
4
1.5
SW
6
1.7
SSW
7
1.3
SSW
8
1.1
S
8
0.8
S
8
part cloud
part cloud
part cloud
part cloud
cloud
part cloud
part cloud
cloud
cloud
part cloud
light rain
rain showers
clear
part cloud
cloud
cloud
cloud
light rain
light rain
light snow
part cloud
part cloud
part cloud
part cloud
cloud
cloud
part cloud
part cloud
part cloud
clear
part cloud
part cloud
part cloud
cloud
clear
part cloud
some clouds
some clouds
some clouds
some clouds
cloudy
some clouds
some clouds
cloudy
cloudy
some clouds
light rain
rain shwrs
clear
some clouds
cloudy
cloudy
cloudy
light rain
light rain
light snow
some clouds
some clouds
some clouds
some clouds
cloudy
cloudy
some clouds
some clouds
some clouds
clear
some clouds
some clouds
some clouds
cloudy
clear
some clouds
 km/h
10
NNW
20
SW
40
WNW
45
NNW
30
NNE
20
NNE
10
SSW
30
SSW
50
WSW
35
SSW
60
SW
50
WSW
30
WNW
35
WNW
25
WNW
10
W
0
NW
15
NNE
10
WNW
45
W
55
WNW
45
WNW
45
WNW
25
WSW
30
SW
35
WSW
25
WSW
30
NW
35
NNW
35
NW
40
WSW
50
WSW
45
WSW
35
W
25
WNW
20
NNE
 mm 
1
1
4
1
max°C
3
5
4
-4
-3
-4
-1
5
8
9
10
9
4
4
4
3
4
3
3
2
-4
-1
0
1
6
6
2
-1
-1
-3
1
4
6
4
5
2
Moonrise
7:15
8:31
9:43
10:51
11:56
12:58
2:00
3:02
4:04
5:07
6:09
Moonset
9:59
10:38
11:08
11:33
11:55
12:14
12:34
12:54
1:17
1:44
2:15
2:54
Sunrise
6:58
7:00
7:01
7:01
7:01
7:03
7:03
7:05
7:05
7:05
7:07
7:07
Sunset
4:19
4:19
4:19
4:19
4:19
4:19
4:19
4:19
4:20
4:20
4:20
4:21
Today's sea temperature in Montauk Harbor entrance, Long Island Sound is
9.9° C
(Statistics for 07 Dec 1981-2005 – mean: 10.0 max: 12.9 min: 8.6°C)
Issued (local time): 6 am Sunday 07 Dec 2025
Forecast update inUpdates in  hr  min  sUpdate imminent
Nearest locationNearest