Cupsogue Surf Forecast

/ Long Island NY (34 breaks) / New York (44 breaks) /

USA (1297 breaks) / Lat Long: (40.78° N 72.70° W)

Surf Forecasts:

Cupsogue surfForecast / Long Island NY / USA

12 Day Weather and Surf, issued 1 pm Wednesday 15 Oct 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 19.4° C
(Which is 3.2°C warmer than normal for this time of year)

Best Forecast Surf Conditions for Cupsogue this week:

The most powerful waves expected at Cupsogue in the next 12 days are 2.0m 7s and forecast to arrive on Wednesday (Oct 22) at 5PM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.1m 9s period and expected on Wednesday (Oct 15) at 8PM.

Wave Type	Time (EDT) & Date	Wave Height & Period
Next good surf (1 star+)	-	-
Best Surf	-	-
Most Powerful	5PM (Wed 22nd Oct)	6.5ft (2.0m) 7s

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

Updates in hr min s Forecast update imminent

12 Days Hourly

Print Table

	Short Range Forecast Mostly dry. Very mild (max 18°C on Wed afternoon, min 8°C on Thu morning). Winds decreasing (strong winds from the N on Thu afternoon, light winds from the N by Sat morning).											Days 3-6 Weather Summary Light rain (total 3mm), mostly falling on Sun night. Very mild (max 19°C on Sun night, min 13°C on Tue morning). Winds increasing (calm on Sat afternoon, strong winds from the S by Sun night).
	Wed 15		Thursday 16			Friday 17			Saturday 18			Sunday 19			Monday 20			Tuesday 21
	PM	Night	AM	PM	Night	AM	PM	Night	AM	PM	Night	AM	PM	Night	AM	PM	Night	AM	PM	Night	AM
Rating (10 max)	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0
Swell Height Map See all maps
Wave Height (m) & direction (?)	SE	ESE	ESE	ESE	ESE	SE	S	E	ESE	ESE	ESE	S	S	S	SSW	WSW	SSW	SW	SW	SSW	SSW
Period(s) (?)	8	10	10	9	9	9	16	11	11	11	11	4	5	7	7	6	6	6	6	4	6
Wave Graph (?)
kJ (?)	3	0	0	0	0	0	5	0	0	0	0	9	73	192	79	216	22	13	8	4	104
Wind (km/h)	NNW	N	NNW	N	N	N	N	NNE	N	SSW	SW	S	S	SSW	WSW	WSW	WNW	W	WSW	SW	SSE
Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy	cross- off	cross- off	cross- off	cross- off	cross- off	cross- off	cross- off	cross- off	cross- off	cross	cross	cross- on	cross- on	cross- on	cross- off	cross- off	cross- off	cross- off	cross- off	cross	cross- on
High Tide / height (m)	3:40PM 0.98	4:19AM 0.89		4:40PM 0.98		5:13AM 0.94	5:32PM 0.98		5:59AM 1.00	6:17PM 0.99		6:40AM 1.04	6:58PM 0.99		7:18AM 1.07	7:37PM 0.98		7:55AM 1.09		8:15PM 0.95	8:33AM 1.09
Low Tide / height (m)		10:17PM 0.19	10:23AM 0.23		11:14PM 0.17	11:32AM 0.20		11:57PM 0.15	12:20PM 0.16		12:28AM 0.13	12:56PM 0.12		12:52AM 0.11	1:25PM 0.10		1:16AM 0.09	1:51PM 0.08		1:44AM 0.08

	Wed 15		Thursday 16			Friday 17			Saturday 18			Sunday 19			Monday 20			Tuesday 21
Sunrise	-	-	7:01	-	-	7:03	-	-	7:03	-	-	7:05	-	-	7:05	-	-	7:07	-	-	7:09
Sunset	6:10	-	-	6:08	-	-	6:07	-	-	6:06	-	-	6:05	-	-	6:02	-	-	6:01	-	-

Rain (mm)	-	-	-	-	-	-	-	-	-	-	-	-	-	3	-	-	-	-	-	-	7
Temp. °C	18	14	9	12	11	11	16	14	12	14	15	16	17	19	16	18	18	14	17	17	16
Feels °C (?)	12	6	0	3	1	4	11	9	9	12	11	11	11	13	9	12	13	9	12	12	10

Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)
Wind Speed (km/h)

Recent Eyeball Surf Reports for Long Island NY

Wind Update The wind is still cross-off at Cupsogue (moderate winds from the NNW at Westhampton Beach/Francis S. Gabreski Airport 11 km from Cupsogue). No surfable waves
2 hours 5 minutes ago Cupsogue

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2 h 5 min ago

20 km/h

NNW

Cross-Off

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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.