Fortress Surf Forecast

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

USA (1297 breaks) / Lat Long: (41.02° N 71.96° W)

Surf Forecasts:

Fortress surfForecast / Long Island NY / USA

48hr Weather and Surf, issued 7 pm Monday 25 Aug 2025 EDT

Forecast update in hr min s Forecast update imminent

Fortress surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.

Today's Fortress sea temperature is 20.2° C
(Which is 1.2°C colder than average for this time of year)

How big are the waves at Fortress today?

The current surf forecast for Fortress at 11PM is: 1.2m 8s primary swell from a South direction and 0.8m 9s secondary swell from a East-southeast direction (forecast issued at 07:00pm August 25). An open ocean swell of 0.9m 5s is not directed at the surf break. The wind direction is predicted to be offshore and the swell rating is 2.

Time (EDT) & Date	Wave Height	Wave Period
Morning (25 Aug)	-	-
Afternoon (25 Aug)	1.5ft (0.5m)	5s
Evening (25 Aug)	4.5ft (1.3m)	8s

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

Updates in hr min s Forecast update imminent

12 Days Hourly

Print Table

	Monday 25			Tuesday 26								Wednesday 27								Thursday 28
	5 PM	8 PM	11 PM	2 AM	5 AM	8 AM	11 AM	2 PM	5 PM	8 PM	11 PM	2 AM	5 AM	8 AM	11 AM	2 PM	5 PM	8 PM	11 PM	2 AM	5 AM	8 AM	11 AM	2 PM
Rating (10 max)	0	0	2	1	1	1	1	0	0	0	0	0	0	0	1	1	0	0	0	0	0	0	0	0
Swell Height Map See all maps
Wave Height (m) & direction (?)	SSE	SSE	S	S	SE	SE	SE	S	S	S	S	S	S	SE	ESE	SE	ESE	ESE	ESE	ESE	ESE	ESE	SE	SE
Period(s) (?)	8	8	8	8	8	8	8	7	8	7	7	7	7	9	9	9	9	9	8	8	8	8	9	9
Wave Graph (?)
Energy (?)	175	245	285	189	155	118	82	95	65	74	49	46	59	46	64	54	67	60	59	36	35	47	37	42
Wind (km/h)	SSW	SW	NW	NW	NW	NW	WNW	WSW	SW	SW	NW	NNW	N	N	NW	SW	SW	SW	N	NNW	WNW	WNW	SW	SSW
Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy	cross	cross- off	off	off	off	cross- off	off	cross- off	cross- off	cross- off	cross- off	cross- off	cross- off	cross- off	off	cross- off	cross- off	cross- off	cross- off	cross- off	off	off	cross- off	cross
High Tide / height (m)			10:01PM 0.85				10:31AM 0.92				10:27PM 0.80					11:03AM 0.88			10:54PM 0.75					11:34AM 0.84
Low Tide / height (m)	3:31PM 0.05				3:43AM 0.03				4:08PM 0.09				4:11AM 0.06				4:46PM 0.13				4:43AM 0.09

	Monday 25			Tuesday 26								Wednesday 27								Thursday 28
Sunrise	-	-	-	-	-	6:07	-	-	-	-	-	-	-	6:09	-	-	-	-	-	-	-	6:09	-	-
Sunset	7:31	-	-	-	-	-	-	-	7:30	-	-	-	-	-	-	-	7:29	-	-	-	-	-	-	-

Rain (mm)	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Temp. °C	22	24	23	21	20	18	19	22	22	22	22	20	18	18	18	20	21	21	21	20	19	19	20	21
Feels °C (?)	20	21	20	18	17	16	17	18	17	19	18	17	15	15	17	17	16	16	18	18	18	18	19	18

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 Continuing clean conditions at Fortress (light winds from the SW at Montauk Airport 6 km from Fortress). 1.1m 8s swell from the SSE with a 0.7m 4s local chop from the SSW. 2 swells combining to make bigger set waves.
1 hour 51 minutes ago Fortress

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1 h 51 min ago

9 km/h

Clean

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