Cupsogue surfForecast / Long Island NY / USA

information circle48hr Weather and Surf, issued 1 pm Monday 30 Mar 2026 EDT
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
4.3° C
(Which is 1.3°C colder than average for this time of year)

How big are the waves at Cupsogue today?

The current surf forecast for Cupsogue at 7PM is: 1.6m 7s primary swell from a South direction (forecast issued at 01:00pm March 30). An open ocean swell of 0.2m 8s is not directed at the surf break, a second open ocean swell of 0.1m 11s is not directed at the surf break. The wind direction is predicted to be cross-shore.

Time (EDT) & DateWave HeightWave Period
Morning (30 Mar)5ft (1.5m)6s
Afternoon (30 Mar)5ft (1.6m)7s
Evening (30 Mar)5ft (1.6m)7s

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


Updates in  hr  min  s Forecast update imminent
Monday
30
Tuesday
31
Wednesday
01
Thursday
02
11AM2PM5PM8PM11PM2AM5AM8AM11AM2PM5PM8PM11PM2AM5AM8AM11AM2PM5PM8PM11PM2AM5AM8AM
Rating
(10 max)
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
3
0
0
0
0
Swell
Height Map
Wave Height (m) & direction (?)
1.5
SSW
1.6
SSW
1.6
SSW
1.6
S
1.5
S
1.5
S
1.5
S
1.7
S
1.7
S
1.8
S
1.9
S
2
S
2.1
S
2.2
S
2.1
S
1.9
S
1.8
S
1.9
S
1.8
S
2
S
2.1
SSW
1.4
S
1.3
S
1.2
S
Period(s) (?)677777888888888888887777
Wave
Graph
(?)Metric surfscale
Energy kJ (?)167212254277233239249341350391424488551627593481422458378463456210183150
Wind
(km/h)
35
SW
35
SW
30
SW
30
SW
25
SW
30
SW
25
SW
30
SW
35
SW
30
SW
30
SW
35
SW
40
SW
40
SW
30
SW
25
SW
25
SW
20
SW
20
SW
15
WSW
40
ENE
40
ENE
30
ENE
35
ENE
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
crosscrosscrosscrosscrosscrosscrosscrosscrosscrosscrosscrosscrosscrosscrosscrosscrosscrosscrosscross-
off
cross-
on
cross-
on
cross-
on
cross-
on
High Tide
/ height (m)
6:43PM
0.99
7:03AM
1.01
7:26PM
1.04
7:46AM
1.01
8:07PM
1.07
Low Tide
/ height (m)
12:37PM
0.04
12:54AM
0.04
1:11PM
0.02
1:34AM
0.01
1:40PM
0.00
2:07AM
-0.00
Monday
30
Tuesday
31
Wednesday
01
Thursday
02
Sunrise-------6:35-------6:35-------6:33
Sunset--7:12-------7:14-------7:15-----
cloud
cloud
part cloud
cloud
cloud
cloud
part cloud
cloud
cloud
part cloud
part cloud
clear
clear
part cloud
cloud
light rain
cloud
cloud
part cloud
rain showers
light rain
light rain
cloud
cloud
Rain (mm)
---------------1---112--
Temp. °C8101113121111111112121211111214121514154211
Feels °C (?)034775654665336108121113-5-7-7-7
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
Map placeholder

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.


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