Cupsogue surfForecast / Long Island NY / USA

information circle12 Day Weather and Surf, issued 7 am Tuesday 15 Jul 2025 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
22.8° C
(Which is 1.2°C warmer than normal for this time of year)


Best Forecast Surf Conditions for Cupsogue this week:

The surf forecast for Cupsogue over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Thursday (Jul 17) at 11PM. The primary swell is predicted to be 1.9m and 7s period with a secondary swell of 1.4m and 7s. Another secondary swell of 0.1m and 16s is also forecast. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at Cupsogue in the next 12 days are 1.9m 7s and forecast to arrive on Thursday (Jul 17) at 11PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.8m 6s period and expected on Tuesday (Jul 22) at 8AM.

Wave TypeTime (EDT) & Date Wave Height & Period
Next good surf (1 star+)11PM (Thu 17th Jul)6ft (1.9m) 7s
Best Surf11PM (Thu 17th Jul)6ft (1.9m) 7s
Most Powerful11PM (Thu 17th Jul)6ft (1.9m) 7s

Table - best surf conditions forecast for Cupsogue over the next 12 days.

Updates in  hr  min  s Forecast update imminent
Tuesday
15
Wednesday
16
Thursday
17
Friday
18
Saturday
19
Sunday
20
Monday
21
Tuesday
22
Wednesday
23
Thursday
24
Friday
25
Saturday
26
AMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNight
Rating
(10 max)
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Swell
Height Map
Wave Height (m) & direction (?)
0.3
SE
0.2
SSE
0.2
SSE
0.4
SSE
0.5
S
0.7
S
1
S
1.4
S
1.7
SSW
1
S
0.9
S
0.7
S
0.5
S
0.4
SE
0.4
SE
0.4
SE
0.4
SE
0.3
SE
0.6
S
0.5
SSE
0.3
SE
0.4
SE
0.6
SSE
0.5
S
0.4
S
0.3
S
0.3
SE
0.4
SE
0.4
SSE
0.6
SE
0.7
SSE
0.5
SE
1.2
S
1
S
0.9
SSW
0.7
SSW
Period(s) (?)866665677777788889578887768676676655
Wave
Graph
(?)Metric surfscale
Energy (?)131041425327918149711496614530263632363436192176302318261721305130991419062
Wind
(km/h)
5
SSW
15
SSW
10
SW
15
SSW
20
SSW
15
WSW
15
SW
25
SSW
20
W
15
NNW
10
SW
10
NNW
20
ESE
15
SSE
15
S
20
S
20
SSW
15
SSW
20
NW
25
NW
15
NNE
15
ENE
20
SE
15
SE
20
ESE
20
ESE
15
E
15
E
15
E
10
S
15
SSW
10
SW
15
N
15
NNE
15
SSW
15
WSW
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
crosscrosscross-
off
crosscross-
on
cross-
off
crosscrosscross-
off
cross-
off
crossoffcross-
on
oncross-
on
cross-
on
cross-
on
crossoffoffcross-
off
cross-
on
ononcross-
on
oncross-
on
cross-
on
cross-
on
cross-
on
cross-
on
crosscross-
off
cross-
off
crosscross-
off
High Tide
/ height (m)
11:44AM
1.00
11:59PM
1.02
12:34PM
1.02
12:50AM
0.97
1:28PM
1.04
1:47AM
0.91
2:27PM
1.06
2:49AM
0.87
3:29PM
1.08
3:54AM
0.86
4:30PM
1.12
4:57AM
0.86
5:28PM
1.16
5:56AM
0.89
6:23PM
1.19
6:51AM
0.92
7:15PM
1.20
7:43AM
0.95
8:05PM
1.20
8:33AM
0.98
8:53PM
1.18
9:21AM
1.00
9:39PM
1.15
Low Tide
/ height (m)
5:10PM
0.07
5:38AM
-0.00
6:05PM
0.09
6:28AM
0.01
7:04PM
0.12
7:21AM
0.03
8:07PM
0.14
8:16AM
0.05
9:14PM
0.16
9:15AM
0.07
10:26PM
0.15
10:16AM
0.08
11:40PM
0.12
11:20AM
0.08
12:45AM
0.08
12:22PM
0.06
1:38AM
0.05
1:19PM
0.05
2:22AM
0.03
2:09PM
0.05
3:01AM
0.02
2:54PM
0.06
3:36AM
0.03
Tuesday
15
Wednesday
16
Thursday
17
Friday
18
Saturday
19
Sunday
20
Monday
21
Tuesday
22
Wednesday
23
Thursday
24
Friday
25
Saturday
26
Sunrise5:31--5:31--5:33--5:33--5:35--5:35--5:35--5:37--5:37--5:39--5:39--5:41--
Sunset-8:21--8:20--8:19--8:19--8:17--8:16--8:16--8:15--8:15--8:14--8:13--8:12-
clearclearclearclearclearrain showerscloudpart cloudclearpart cloudpart cloudclearclearclearclearpart cloudcloudrain showerspart cloudpart cloudclearclearclearclearclearclearclearpart cloudpart cloudpart cloudpart cloudcloudrain showersclearclearclear
Rain (mm)
-----1-----------5--------------3---
Temp. °C252626272726242630232626222323242425252626222222222121222224242422222323
Feels °C (?)282728292827252730232527232323252326242324202021232021222327262523212221

Short Range Forecast: Some drizzle, heaviest during Wed night. Warm (max 30°C on Thu night, min 24°C on Tue morning). Wind will be generally light.

Days 3-6 Weather Summary Light rain (total 5mm), mostly falling on Sun night. Warm (max 26°C on Fri afternoon, min 21°C on Fri night). Wind will be generally light.

Days 6-9 Weather Summary Mostly dry. Warm (max 26°C on Mon afternoon, min 21°C on Tue morning). Wind will be generally light.

Long Range Forecast: Light rain (total 3mm), mostly falling on Fri night. Warm (max 24°C on Thu night, min 19°C on Fri night). Wind will be generally light.

  • 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

Eyeball surf reportRecent Eyeball Surf Reports for Long Island NY

  1. weather stationWind Update calm at Westhampton Beach/Francis S. Gabreski Airport mean that is clean at Cupsogue. no significant swell. Swells combining. Closeout sets possible

    Cupsogue
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2 h 59 min ago

0 km/h
N
Clean
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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.


Information about the Cupsogue Surf forecast

The above surf forecast table for Cupsogue provides essential information for determining whether the surfing conditions will be good over the next 12 days. A general guide to surfing at Cupsogue can be found by selecting the local surf guide option on the grey menu. Our Cupsogue surf forecast is unique since it includes wave energy (power) that defines the real feel of the surf rather than just the height or the period. If you surf the same spot (Cupsogue) regularly then make a mental note of the wave energy from the surf forecast table each time you go. Very soon you may start to choose your surf days based on the wave energy alone combined with our forecast of favourable offshore wind conditions. Our star ratings will help here and of course you will also find the usual wave height and period predictions on our surf forecasts as well as a full break down of the swell components under our advanced users option (to reveal that, click the little Einstein character under the tide times).

Further information to help with frequently asked questions about our surf forecast for Cupsogue may be found under the help tab on the top menu and also by moving your mouse over the question marks on the surf forecast table itself. Please always bear in mind that the forecast is for near-shore open water and local factors at each surf break influence the actual breaking wave height, such as the beach / reef profile, water depths offshore and shelter.

Cupsogue is 12 km (7 miles) from Mastic. If you plan a vacation in Long Island New York, look for hotels and other accommodation in Mastic. Mastic has rooms for a wide range of budgets as well as car hire and transport links.

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