Fire Island Surf Forecast

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

USA (1297 breaks) / Lat Long: (40.73° N 72.87° W)

Surf Forecasts:

Fire Island surfForecast / Long Island NY / USA

12 Day Weather and Surf, issued 1 pm Saturday 30 Aug 2025 EDT

Forecast update in hr min s Forecast update imminent

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

Today's Fire Island sea temperature is 21.8° C
(Which is normal for this time of year)

Best Forecast Surf Conditions for Fire Island this week:

The surf forecast for Fire Island over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Tuesday (Sep 02) at 5AM. The primary swell is predicted to be 1.0m and 6s period with a secondary swell of 0.8m and 6s. Another secondary swell of 0.1m and 9s is also forecast. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at Fire Island in the next 12 days are 1.1m 8s and forecast to arrive on Wednesday (Sep 03) at 2AM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.5m 4s period and expected on Sunday (Aug 31) at 2AM.

Wave Type	Time (EDT) & Date	Wave Height & Period
Next good surf (1 star+)	5AM (Tue 2nd Sep)	3.5ft (1.0m) 6s
Best Surf	5AM (Tue 2nd Sep)	3.5ft (1.0m) 6s
Most Powerful	2AM (Wed 3rd Sep)	3.5ft (1.1m) 8s

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

Updates in hr min s Forecast update imminent

12 Days Hourly

Print Table

	Short Range Forecast Mostly dry. Warm (max 23°C on Sun afternoon, min 17°C on Mon night). Wind will be generally light.											Days 3-6 Weather Summary Light rain (total 5mm), mostly falling on Thu night. Warm (max 23°C on Thu night, min 20°C on Tue afternoon). Wind will be generally light.
	Sat 30		Sunday 31			Monday 01			Tuesday 02			Wednesday 03			Thursday 04			Friday 05
	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	1	0	0	0	0	0	0	0	0	0	0	0	0
Swell Height Map See all maps
Wave Height (m) & direction (?)	SSE	SSE	SE	SE	SE	SE	ESE	ESE	E	ESE	ESE	ESE	ESE	SE	ESE	SE	SSE	SE	S	S	SE
Period(s) (?)	7	7	10	10	7	7	5	6	6	8	8	8	8	7	7	7	5	6	6	6	7
Wave Graph (?)
Energy (?)	33	28	32	39	32	26	37	52	102	112	166	126	108	46	43	32	51	92	85	165	59
Wind (km/h)	SW	N	N	S	NE	E	ESE	NE	NE	S	SW	SSW	S	S	ESE	SSE	S	SW	SSW	SSW	SSW
Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy	cross	cross- off	cross- off	cross- on	cross	cross- on	cross- on	cross	cross- off	cross- on	cross	cross	cross- on	cross- on	on	on	cross- on	cross	cross- on	cross	cross
High Tide / height (m)		1:22AM 0.73		2:03PM 0.86	2:42AM 0.70		3:18PM 0.87	4:03AM 0.71		4:24PM 0.90		5:02AM 0.76	5:16PM 0.94		5:49AM 0.81	6:01PM 1.00		6:29AM 0.88	6:41PM 1.04		7:06AM 0.95
Low Tide / height (m)	6:54PM 0.28		7:00AM 0.26	7:53PM 0.30		7:56AM 0.28		8:54PM 0.29	8:55AM 0.27		9:53PM 0.27	9:55AM 0.25		10:49PM 0.22	10:52AM 0.21		11:39PM 0.16	11:46AM 0.15		12:26AM 0.10	12:37PM 0.09

	Sat 30		Sunday 31			Monday 01			Tuesday 02			Wednesday 03			Thursday 04			Friday 05
Sunrise	-	-	6:16	-	-	6:16	-	-	6:18	-	-	6:18	-	-	6:20	-	-	6:20	-	-	6:22
Sunset	7:27	-	-	7:25	-	-	7:23	-	-	7:22	-	-	7:21	-	-	7:19	-	-	7:16	-	-

Rain (mm)	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	5	-	-	-	-
Temp. °C	22	20	20	23	20	20	21	20	20	21	20	21	21	20	20	22	23	23	22	22	24
Feels °C (?)	19	16	17	21	19	17	17	19	19	19	18	19	18	18	20	21	24	23	20	22	24

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 Offshore wind reported 10 km from Fire Island (light winds from the NNW at Shirley Airport 10 km from Fire Island). 0.5m 8s swell from the SSE with a 0.4m 7s swell from the ESE and a 0.1m 13s groundswell from the SE. 3 swells combining to make bigger set waves.
1 hour 41 minutes ago Fire Island

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1 h 41 min ago

15 km/h

NNW

Cross-Off

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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 Fire Island 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 Fire Island Surf forecast

The above surf forecast table for Fire Island provides essential information for determining whether the surfing conditions will be good over the next 12 days. A general guide to surfing at Fire Island can be found by selecting the local surf guide option on the grey menu. Our Fire Island 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 (Fire Island) 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 Fire Island 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.

Fire Island is 8 km (5 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.