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 07:09 AM and sunset is at 04:22 PM.

Days 1–3 Weather Summary

Mostly dry. Icy conditions (max 6°C on Sat night, min -4°C on Sun night). Winds decreasing (strong winds from the WNW on Sun night, light winds from the SW by Mon night).

Days 4–6 Weather Summary

Moderate rain (total 11mm), heaviest on Tue morning. Low air temperatures (max 5°C on Tue night, min 1°C on Tue night). Winds decreasing (strong winds from the NW on Tue night, calm by Thu night).

Days 7–9 Weather Summary

Light rain (total 8mm), mostly falling on Fri morning. Freeze-thaw conditions (max 10°C on Fri afternoon, min -7°C on Sun night). Winds increasing (calm on Sat morning, strong winds from the NW by Sun afternoon).

Days 10–12 Weather Summary

Mostly dry. Freeze-thaw conditions (max 3°C on Mon night, min -8°C on Tue night). Winds decreasing (strong winds from the W on Mon night, light winds from the SW by Wed night).

Saturday
20
Sunday
21
Monday
22
Tuesday
23
Wednesday
24
Thursday
25
Friday
26
Saturday
27
Sunday
28
Monday
29
Tuesday
30
Wednesday
31
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
10:51AM0.80m
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
7:25PM0.58m
7:46AM0.91m
8:20PM0.59m
Low Tide
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
1:34PM-0.04m
1:25AM0.02m
2:28PM-0.09m
2:18AM-0.00m
Wave
height (m) 
direction
period (s) 
1.1
SSE
10
0.8
SSE
10
1
SSE
9
1
S
8
0.9
SSE
8
0.9
NW
4
0.7
NW
4
0.4
SE
10
0.2
ESE
9
0.8
SSW
4
0.8
S
7
0.9
S
8
0.8
N
4
0.4
S
8
0.3
ESE
12
0.5
ESE
13
0.6
ESE
13
0.4
ESE
12
0.7
ESE
12
0.9
S
6
1.1
NNW
4
0.5
S
8
0.4
S
8
0.6
SSE
4
0.6
S
5
0.9
NNW
4
0.9
NNW
4
0.6
NW
4
0.4
WNW
3
0.9
WSW
4
0.9
NW
4
0.9
NW
4
1
NW
4
0.7
WNW
4
0.5
WNW
3
0.1
NW
2
clear
part cloud
part cloud
clear
clear
clear
clear
part cloud
cloud
mod rain
light rain
part cloud
clear
clear
part cloud
clear
clear
part cloud
mod rain
part cloud
clear
part cloud
part cloud
rain showers
clear
clear
clear
clear
clear
part cloud
part cloud
clear
clear
clear
part cloud
cloud
clear
some clouds
some clouds
clear
clear
clear
clear
some clouds
cloudy
mod rain
light rain
some clouds
clear
clear
some clouds
clear
clear
some clouds
mod rain
some clouds
clear
some clouds
some clouds
rain shwrs
clear
clear
clear
clear
clear
some clouds
some clouds
clear
clear
clear
some clouds
cloudy
 km/h
20
W
20
SW
35
SW
30
W
40
NW
35
NW
35
NW
15
W
15
W
35
SSW
25
WSW
30
WNW
25
N
20
NW
5
WNW
25
WSW
15
W
0
SSW
25
S
30
WSW
40
NW
15
NNE
15
ESE
20
SSW
25
WNW
45
NW
40
NW
30
NW
25
W
40
W
30
NW
40
NW
40
NW
35
WNW
25
WNW
10
WNW
 mm 
7
4
6
2
max°C
0
2
6
5
4
0
0
2
3
4
4
5
3
3
2
5
5
5
8
10
4
-2
1
4
4
2
-4
-3
0
3
-2
-3
-7
-5
-3
-3
Moonrise
8:01
8:45
9:22
9:53
10:19
10:42
11:04
11:25
11:48
12:15
12:48
1:30
Moonset
4:39
5:41
6:47
7:54
9:01
10:08
11:17
12:26
1:40
2:57
4:17
Sunrise
7:09
7:11
7:11
7:11
7:11
7:11
7:13
7:13
7:13
7:13
7:13
7:13
Sunset
4:22
4:23
4:23
4:24
4:25
4:25
4:27
4:27
4:28
4:29
4:30
4:30
Today's sea temperature in Southold, Long Island Sound is
6.4° C
(Statistics for 20 Dec 1981-2005 – mean: 8.5 max: 10.3 min: 7.1°C)
Issued (local time): 6 am Saturday 20 Dec 2025
Forecast update inUpdates in  hr  min  sUpdate imminent
Nearest locationNearest