Coastguards Surf Forecast

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

USA (1297 breaks)

Surf Forecasts:

Coastguards surfForecast / Long Island NY / USA

12 Day Weather and Surf, issued 1 pm Saturday 13 Sep 2025 EDT

Forecast update in hr min s Forecast update imminent

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

Today's Coastguards sea temperature is 21.6° C
(Which is 1.0°C warmer than normal for this time of year)

Best Forecast Surf Conditions for Coastguards this week:

The surf forecast for Coastguards over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Tuesday (Sep 16) at 5AM. The primary swell is predicted to be 0.5m and 8s period with a secondary swell of 0.3m and 9s. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at Coastguards in the next 12 days are 1.5m 7s and forecast to arrive on Wednesday (Sep 17) at 2PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.5m 6s period and expected on Saturday (Sep 20) at 2PM.

Wave Type	Time (EDT) & Date	Wave Height & Period
Next good surf (1 star+)	5AM (Tue 16th Sep)	1.5ft (0.5m) 8s
Best Surf	5AM (Tue 16th Sep)	1.5ft (0.5m) 8s
Most Powerful	2PM (Wed 17th Sep)	5ft (1.5m) 7s

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

Updates in hr min s Forecast update imminent

12 Days Hourly

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	Short Range Forecast Mostly dry. Warm (max 23°C on Sun afternoon, min 18°C on Tue morning). Wind will be generally light.											Days 3-6 Weather Summary Light rain (total 5mm), mostly falling on Wed night. Warm (max 22°C on Thu afternoon, min 18°C on Tue night). Wind will be generally light.
	Sat 13		Sunday 14			Monday 15			Tuesday 16			Wednesday 17			Thursday 18			Friday 19
	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	1	1	0	0	0	0
Swell Height Map See all maps
Wave Height (m) & direction (?)	ESE	ESE	ESE	ESE	ESE	ESE	ESE	SE	ESE	SE	SE	ESE	E	ESE	ESE	ESE	ESE	ESE	SE	SE	E
Period(s) (?)	7	8	8	7	8	8	8	10	8	8	8	8	7	7	7	7	7	7	10	9	4
Wave Graph (?)
kJ (?)	42	19	33	31	35	46	53	33	90	151	133	161	238	162	108	84	55	27	15	13	0
Wind (km/h)	S	SW	NW	S	WSW	E	SE	ESE	E	ESE	ENE	ENE	ENE	ENE	NE	ENE	WSW	WSW	SSW	SW	SW
Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy	cross- on	on	glass	cross- on	glass	cross- off	cross	cross	cross- off	cross	cross- off	cross- off	cross- off	cross- off	cross- off	cross- off	glass	cross- on	on	cross- on	on
High Tide / height (m)		12:58AM 1.19	1:21PM 1.43		2:02AM 1.15		2:26PM 1.39	3:08AM 1.14		3:33PM 1.37	4:15AM 1.17		4:38PM 1.39		5:17AM 1.24	5:35PM 1.42		6:09AM 1.32	6:24PM 1.45		6:55AM 1.39
Low Tide / height (m)	6:50PM 0.16		6:45AM 0.17		8:05PM 0.20	8:01AM 0.23		9:16PM 0.18	9:14AM 0.23		10:17PM 0.14	10:18AM 0.19		11:11PM 0.08	11:13AM 0.14		11:58PM 0.03	12:04PM 0.09		12:42AM -0.00	12:52PM 0.06

	Sat 13		Sunday 14			Monday 15			Tuesday 16			Wednesday 17			Thursday 18			Friday 19
Sunrise	-	-	6:31	-	-	6:33	-	-	6:33	-	-	6:35	-	-	6:35	-	-	6:37	-	-	6:37
Sunset	7:06	-	-	7:04	-	-	7:02	-	-	7:00	-	-	6:59	-	-	6:58	-	-	6:55	-	-

Rain (mm)	-	-	-	-	-	-	-	-	-	-	-	-	-	5	-	-	-	-	-	-	-
Temp. °C	21	20	22	23	22	22	22	20	20	21	19	20	21	20	21	22	21	22	25	24	23
Feels °C (?)	20	17	23	22	22	23	22	19	18	18	17	17	18	18	21	22	22	21	24	23	22

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-on at Coastguards (light winds from the S at Farmingdale Airport 14 km from Coastguards). 0.6m 8s swell from the ESE to make surfable waves.
2 hours 24 minutes ago Coastguards

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2 h 24 min ago

19 km/h

Cross-On

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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 Coastguards 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 Coastguards Surf forecast

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

Coastguards is 7 km (4 miles) from Lindenhurst. If you plan a vacation in Long Island New York, look for hotels and other accommodation in Lindenhurst. Lindenhurst has rooms for a wide range of budgets as well as car hire and transport links.