Southold, Long Island Sound Sea Conditions and Tide Table

Southold, 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 07:07 AM and sunset is at 04:22 PM.

Days 1–3 Weather Summary

Mostly dry. Icy conditions (max 6°C on Wed morning, min -7°C on Mon morning). Winds decreasing (strong winds from the NW on Mon morning, light winds from the SSW by Wed night).

Days 4–6 Weather Summary

Moderate rain (total 16mm), heaviest on Fri morning. Icy conditions (max 13°C on Thu night, min -3°C on Fri night). Winds increasing (light winds from the SSE on Thu morning, gales from the S by Fri morning).

Days 7–9 Weather Summary

A dusting of snow giving way to moderate rain (total 13mm) heaviest on Tue morning. Freeze-thaw conditions (max 9°C on Tue morning, min -4°C on Tue night). Winds increasing (light winds from the E on Mon night, near gales from the WNW by Tue night).

Days 10–12 Weather Summary

Light rain (total 9mm), mostly falling on Fri night. Freeze-thaw conditions (max 9°C on Fri night, min -5°C on Wed morning). Winds increasing (calm on Thu night, fresh winds from the SSW by Fri night).

Monday
15
Tuesday
16
Wednesday
17
Thursday
18
Friday
19
Saturday
20
Sunday
21
Monday
22
Tuesday
23
Wednesday
24
Thursday
25
Friday
26
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
7:47AM0.75m
8:16PM0.54m
8:27AM0.77m
8:57PM0.54m
9:04AM0.78m
9:35PM0.55m
9:40AM0.79m
10:13PM0.56m
10:15AM0.80m
10:51PM0.57m
10:51AM0.80m
11:30PM0.58m
11:28AM0.79m
00:10AM0.59m
12:07PM0.78m
00:51AM0.59m
12:48PM0.75m
1:35AM0.61m
1:32PM0.72m
2:21AM0.63m
2:22PM0.68m
3:10AM0.66m
3:17PM0.64m
4:03AM0.69m
Low Tide
2:07PM0.07m
1:59AM0.11m
2:51PM0.05m
2:42AM0.11m
3:33PM0.03m
3:23AM0.11m
4:13PM0.02m
4:04AM0.11m
4:54PM0.00m
4:45AM0.12m
5:34PM-0.01m
5:27AM0.12m
6:15PM-0.01m
6:11AM0.13m
6:58PM-0.00m
6:57AM0.14m
7:40PM0.01m
7:47AM0.15m
8:25PM0.03m
8:41AM0.14m
9:11PM0.05m
9:40AM0.13m
9:58PM0.06m
Wave
height (m) 
direction
period (s) 
0.9
NNW
4
0.6
NW
4
0.4
WSW
3
0.4
SSW
6
0.3
SSW
6
0.6
SSW
5
1
S
7
1.1
S
8
0.9
S
8
0.5
S
8
0.6
S
7
1.2
S
6
2.2
SSE
9
1.8
SSE
10
1.7
SSE
11
1
SSE
10
0.7
SSE
10
0.9
SSE
9
1.4
S
8
1
S
8
0.9
SSE
7
0.8
NNW
4
0.4
SE
7
0.3
SE
12
1.2
SSE
6
1.2
SSE
7
1.2
WNW
4
0.9
NW
4
0.3
SSE
8
0.4
W
3
0.4
WNW
3
0.5
NW
3
0.3
NW
2
0.1
SE
9
0.3
S
2
1
S
5
part cloud
part cloud
part cloud
clear
cloud
clear
clear
part cloud
part cloud
part cloud
clear
rain showers
heavy rain
part cloud
clear
cloud
part cloud
part cloud
part cloud
clear
clear
part cloud
light snow
light snow
heavy rain
part cloud
clear
clear
part cloud
clear
clear
part cloud
part cloud
part cloud
cloud
mod rain
some clouds
some clouds
some clouds
clear
cloudy
clear
clear
some clouds
some clouds
some clouds
clear
rain shwrs
heavy rain
some clouds
clear
cloudy
some clouds
some clouds
some clouds
clear
clear
some clouds
light snow
light snow
heavy rain
some clouds
clear
clear
some clouds
clear
clear
some clouds
some clouds
some clouds
cloudy
mod rain
 km/h
40
NW
30
WNW
30
WSW
15
W
15
WSW
30
WSW
35
SW
40
WSW
30
WNW
10
SSE
20
SSE
40
S
65
S
35
W
50
WNW
25
NW
10
SW
35
SW
35
SW
30
W
40
WNW
25
NNW
15
NNW
20
SSE
35
SSE
35
WSW
50
WNW
30
NW
20
W
30
W
20
WNW
25
NW
20
WNW
10
S
20
S
30
SSW
 mm 
1
15
2
11
7
max°C
-4
-2
-1
-3
-2
5
6
6
5
6
9
13
13
7
-1
-2
0
8
6
6
4
-1
0
5
9
8
1
-3
-1
0
1
1
-1
2
5
9
Moonrise
3:04
4:06
5:09
6:11
7:09
8:01
8:45
9:22
9:53
10:19
10:42
11:04
Moonset
1:19
1:46
2:17
2:56
3:44
4:39
5:41
6:47
7:54
9:01
10:08
11:17
Sunrise
7:07
7:07
7:07
7:09
7:09
7:09
7:11
7:11
7:11
7:11
7:11
7:13
Sunset
4:22
4:22
4:22
4:22
4:22
4:22
4:23
4:23
4:24
4:25
4:25
4:27
Today's sea temperature in Southold, Long Island Sound is
7.7° C
(Statistics for 15 Dec 1981-2005 – mean: 9.1 max: 11.9 min: 7.6°C)
Issued (local time): 6 am Monday 15 Dec 2025
Forecast update inUpdates in  hr  min  sUpdate imminent
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