Smithtown Sea Conditions and Tide Table

Smithtown 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 07:13 AM and sunset is at 04:27 PM.

Days 1–3 Weather Summary

Some drizzle, heaviest during Mon night. Icy conditions (max 6°C on Sun morning, min -4°C on Sun night). Winds increasing (light winds from the WSW on Sat morning, fresh winds from the WNW by Sun night).

Days 4–6 Weather Summary

Moderate rain (total 11mm), heaviest on Tue morning. Low air temperatures (max 6°C on Thu afternoon, min 1°C on Tue night). Winds decreasing (fresh winds from the NNW on Tue night, calm by Wed night).

Days 7–9 Weather Summary

Light rain (total 7mm), mostly falling on Fri morning. Freeze-thaw conditions (max 10°C on Fri afternoon, min -6°C on Sun night). Winds decreasing (fresh winds from the NW on Fri afternoon, light winds from the ENE by Sat morning).

Days 10–12 Weather Summary

Mostly dry. Freeze-thaw conditions (max 3°C on Mon night, min -8°C on Tue night). Winds decreasing (fresh winds from the WNW on Tue afternoon, calm by Thu morning).

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
11:16AM1.97m
11:46PM1.73m
11:54AM1.98m
00:24AM1.76m
12:32PM1.97m
1:02AM1.78m
1:11PM1.95m
1:42AM1.81m
1:53PM1.91m
2:25AM1.83m
2:39PM1.86m
3:11AM1.85m
3:30PM1.80m
4:02AM1.87m
4:25PM1.73m
4:56AM1.91m
5:25PM1.69m
5:55AM1.94m
6:28PM1.66m
6:55AM1.99m
7:31PM1.67m
7:54AM2.05m
8:32PM1.67m
Low Tide
5:46PM0.02m
5:50AM0.20m
6:23PM0.02m
6:28AM0.20m
7:00PM0.02m
7:08AM0.19m
7:38PM0.03m
7:51AM0.18m
8:19PM0.04m
8:37AM0.16m
9:02PM0.05m
9:29AM0.14m
9:50PM0.06m
10:25AM0.12m
10:42PM0.07m
11:26AM0.08m
11:39PM0.08m
12:28PM0.02m
00:39AM0.06m
1:30PM-0.05m
1:39AM0.03m
2:31PM-0.13m
2:40AM0.03m
Wave
height (m) 
direction
period (s) 
part cloud
part cloud
cloud
part cloud
clear
clear
clear
part cloud
light rain
mod rain
light rain
part cloud
clear
clear
part cloud
clear
clear
part cloud
mod rain
part cloud
clear
cloud
cloud
rain showers
clear
clear
clear
clear
clear
part cloud
part cloud
clear
clear
clear
cloud
cloud
some clouds
some clouds
cloudy
some clouds
clear
clear
clear
some clouds
light rain
mod rain
light rain
some clouds
clear
clear
some clouds
clear
clear
some clouds
mod rain
some clouds
clear
cloudy
cloudy
rain shwrs
clear
clear
clear
clear
clear
some clouds
some clouds
clear
clear
clear
cloudy
cloudy
 km/h
15
W
15
SW
30
SW
25
W
30
NW
35
WNW
20
NW
20
WNW
15
WSW
30
SSW
25
WSW
30
WNW
20
NNW
15
NNW
5
WNW
20
WSW
15
WSW
5
SSW
20
SSW
25
WSW
30
N
15
N
10
ESE
15
SW
30
WNW
35
NW
25
NW
20
WNW
20
W
35
WSW
30
WNW
35
WNW
25
NW
25
WNW
20
WNW
5
W
 mm 
1
8
3
6
1
max°C
0
3
5
6
3
-1
0
2
2
3
4
5
3
2
2
4
6
5
8
10
4
-2
1
4
4
2
-3
-2
1
3
-3
-3
-7
-5
-4
-3
Moonrise
8:04
8:48
9:25
9:55
10:22
10:45
11:07
11:28
11:52
12:19
12:52
1:34
Moonset
4:43
5:45
6:50
7:57
9:05
10:12
11:20
12:29
1:43
3:00
4:20
Sunrise
7:13
7:13
7:13
7:13
7:15
7:15
7:15
7:16
7:16
7:16
7:16
7:16
Sunset
4:27
4:27
4:28
4:28
4:29
4:30
4:30
4:30
4:31
4:31
4:32
4:34
Today's sea temperature in Smithtown is
6.5° C
(Statistics for 20 Dec 1981-2005 – mean: 8.4 max: 10.3 min: 6.9°C)
Issued (local time): 6 am Saturday 20 Dec 2025
Forecast update inUpdates in  hr  min  sUpdate imminent
Nearest locationNearest