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 — and sunset is at 04:22 PM.

Days 1–4 Weather Summary

Moderate rain (total 17mm), heaviest on Fri morning. Icy conditions (max 13°C on Thu night, min -1°C on Fri night). Winds decreasing (gales from the SSE on Fri morning, light winds from the SW by Sat afternoon).

Days 5–7 Weather Summary

Mostly dry. Icy conditions (max 5°C on Sun afternoon, min -4°C on Sun night). Winds decreasing (strong winds from the WNW on Sun night, light winds from the WSW by Mon night).

Days 8–10 Weather Summary

Moderate rain (total 15mm), heaviest on Fri morning. Very mild (max 11°C on Fri morning, min 2°C on Wed afternoon). Winds increasing (calm on Wed night, fresh winds from the NNW by Fri night).

Days 11–13 Weather Summary

Some drizzle, heaviest during Mon morning. Freeze-thaw conditions (max 5°C on Sat afternoon, min -2°C on Sat night). Wind will be generally light.

Thu
18
Friday
19
Saturday
20
Sunday
21
Monday
22
Tuesday
23
Wednesday
24
Thursday
25
Friday
26
Saturday
27
Sunday
28
Monday
29
Tue
30
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
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
4:17PM0.61m
4:59AM0.74m
5:21PM0.58m
5:55AM0.80m
6:24PM0.57m
6:51AM0.85m
Low Tide
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
10:40AM0.10m
10:48PM0.06m
11:40AM0.06m
11:39PM0.05m
12:38PM0.02m
00:32AM0.04m
Wave
height (m) 
direction
period (s) 
0.6
S
7
1.1
SSE
6
2.2
SSE
8
1.9
SSE
11
1.8
SSE
11
1
SSE
10
0.8
SSE
10
1
SSE
9
1.1
S
8
1.1
S
8
1.1
NW
4
1
NNW
4
0.8
NNW
4
0.2
ESE
10
0.5
SW
4
0.7
SSW
6
0.5
S
7
0.6
NNW
3
0.4
SSW
6
0.2
S
6
0.6
SSW
4
0.7
S
6
0.7
S
6
1.1
S
7
1.1
S
8
0.8
S
8
0.8
SSE
8
0.6
S
7
0.5
NNE
3
0.3
SSE
6
0.2
SSE
6
0.2
ESE
8
0.3
SE
11
0.4
NNW
3
0.3
SE
10
0.2
ESE
10
clear
light rain
heavy rain
rain showers
part cloud
clear
cloud
part cloud
part cloud
clear
clear
clear
part cloud
part cloud
cloud
part cloud
clear
clear
part cloud
part cloud
light rain
light rain
light rain
mod rain
part cloud
rain showers
part cloud
clear
clear
part cloud
part cloud
cloud
rain showers
clear
clear
clear
clear
light rain
heavy rain
rain shwrs
some clouds
clear
cloudy
some clouds
some clouds
clear
clear
clear
some clouds
some clouds
cloudy
some clouds
clear
clear
some clouds
some clouds
light rain
light rain
light rain
mod rain
some clouds
rain shwrs
some clouds
clear
clear
some clouds
some clouds
cloudy
rain shwrs
clear
clear
clear
 km/h
20
SE
30
S
70
SSE
30
WSW
50
W
25
WNW
15
SW
35
SSW
35
WSW
40
WNW
40
WNW
40
NW
30
NW
15
WSW
30
SW
30
WSW
20
WNW
25
NW
15
NNW
5
SW
25
SSW
25
SW
15
SSW
25
SSW
15
WNW
5
WNW
30
NW
20
NNW
25
N
15
NNE
5
SSW
10
S
20
W
20
NNW
15
NNW
5
WNW
 mm 
1
12
4
1
4
2
7
1
1
max°C
10
13
13
9
1
0
2
7
6
5
-2
-1
-2
1
3
1
3
4
4
4
6
6
9
11
11
10
5
5
1
0
1
4
3
4
0
1
Moonrise
7:09
8:01
8:45
9:22
9:53
10:19
10:42
11:04
11:25
11:48
12:15
12:48
Moonset
3:44
4:39
5:41
6:47
7:54
9:01
10:08
11:17
12:26
1:40
2:57
Sunrise
7:09
7:09
7:11
7:11
7:11
7:11
7:11
7:13
7:13
7:13
7:13
7:13
Sunset
4:22
4:22
4:22
4:23
4:23
4:24
4:25
4:25
4:27
4:27
4:28
4:29
Today's sea temperature in Southold, Long Island Sound is
6.6° C
(Statistics for 18 Dec 1981-2005 – mean: 8.7 max: 11.9 min: 7.1°C)
Issued (local time): 6 pm Thursday 18 Dec 2025
Forecast update inUpdates in  hr  min  sUpdate imminent
Nearest locationNearest