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Surf Forecasts:

Cupsogue surfForecast / Long Island NY / USA

information circle48hr Weather and Surf, issued 12 am Wednesday 18 Feb 2026 EST
Forecast update in hr  min  s Forecast update imminent
Cupsogue surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Cupsogue sea temperature is
0.4° C
 (Which is 4.1°C colder than average for this time of year)

How big are the waves at Cupsogue today?

The current surf forecast for Cupsogue at 4AM is: 0.5m 9s primary swell from a South direction and 0.5m 4s secondary swell from a Southwest direction (forecast issued at 12:00am February 18). An open ocean swell of 0.7m 10s is not directed at the surf break. The wind direction is predicted to be cross-offshore.

Time (EST) & DateWave HeightWave Period
Morning (18 Feb)1.5ft (0.5m)8s
Afternoon (18 Feb)1.5ft (0.4m)8s
Evening (18 Feb)1ft (0.3m)8s

Table - waves today at Cupsogue. (Swell directed towards the surf break)

Updates in  hr  min  s Forecast update imminent 
12 DaysHourly
Print Table
Wednesday
18
Thursday
19
Friday
20
10 PM1 AM4 AM7 AM10 AM1 PM4 PM7 PM10 PM1 AM4 AM7 AM10 AM1 PM4 PM7 PM10 PM1 AM4 AM7 AM10 AM1 PM4 PM7 PM
Rating
(10 max)
0
0
0
1
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
Swell
Height Map
See all maps
Wave Height (m) & direction (?)
0.6
S
0.6
S
0.5
S
0.5
S
0.4
SSE
0.4
SSE
0.4
SSE
0.4
S
0.3
SSE
0.6
S
0.7
S
0.7
S
0.8
S
0.8
S
0.8
S
0.7
S
0.6
S
0.6
S
0.5
S
0.8
ESE
0.9
ESE
1.1
ESE
1.5
ESE
1.5
ESE
Period(s) (?)999888888777788887745566
Wave
Graph
(?)Metric surfscale
Energy kJ (?)575739372423222011395047637674554040272235591410
Wind
(km/h)
20
SW
15
WSW
15
WSW
10
W
10
SSW
5
SW
10
NE
10
NNE
15
NE
20
NE
15
NNE
15
NE
15
ENE
15
E
15
ESE
15
SE
15
ESE
15
E
20
ENE
25
E
25
ENE
30
ENE
35
ENE
25
ENE
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
crosscross-
off		cross-
off		cross-
off		cross-
on		glasscrosscross-
off		crosscrosscross-
off		crosscross-
on		cross-
on		cross-
on		ononcross-
on		cross-
on		cross-
on		cross-
on		cross-
on		cross-
on		cross
High Tide
/ height (m)
7:39PM
0.91
7:57AM
1.01
8:21PM
0.96
8:39AM
1.00
9:03PM
0.99
9:21AM
0.97
Low Tide
/ height (m)
1:10AM
-0.10
1:39PM
-0.13
1:53AM
-0.13
2:16PM
-0.16
2:37AM
-0.13
2:56PM
-0.16
Wednesday
18
Thursday
19
Friday
20
Sunrise---6:41-------6:39-------6:37----
Sunset------5:28-------5:29-------5:30-
part cloud
cloud
cloud
cloud
cloud
light rain
cloud
light rain
light rain
cloud
cloud
part cloud
part cloud
part cloud
cloud
cloud
cloud
part cloud
cloud
cloud
light rain
light rain
light rain
light rain
Rain (mm)
-----2-21-----------2521
Temp. °C323334433101111223333333
Feels °C (?)-2-3-20021-1-1-5-5-4-4-5-4-3-3-2-3-4-3-5-6-4
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
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FREE! Surf-Forecast.com widget for your website

The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Cupsogue surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.

View detailed surf forecast for Cupsogue at:
surf-forecast.com

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