Road K Surf Forecast

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

USA (1297 breaks) / Lat Long: (40.83° N 72.51° W)

Surf Forecasts:

Road K surfForecast / Long Island NY / USA

12 Day Weather and Surf, issued 1 am Sunday 24 Aug 2025 EDT

Forecast update in hr min s Forecast update imminent

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

Today's Road K sea temperature is 20.9° C
(Which is slightly cooler than normal)

Best Forecast Surf Conditions for Road K this week:

The surf forecast for Road K over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Monday (Aug 25) at 5AM. The primary swell is predicted to be 0.5m and 10s period with a secondary swell of 0.6m and 5s. The wind is predicted to be glassy as the swell arrives.

The most powerful waves expected at Road K in the next 12 days are 1.1m 8s and forecast to arrive on Monday (Aug 25) 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 0.5m 4s period and expected on Monday (Aug 25) at 11PM.

Wave Type	Time (EDT) & Date	Wave Height & Period
Next good surf (1 star+)	5AM (Mon 25th Aug)	1.5ft (0.5m) 10s
Best Surf	11PM (Mon 25th Aug)	3.5ft (1.1m) 8s
Most Powerful	11PM (Mon 25th Aug)	3.5ft (1.1m) 8s

Table - best surf conditions forecast for Road K 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 24°C on Mon night, min 18°C on Tue night). Wind will be generally light.									Days 3-6 Weather Summary Mostly dry. Warm (max 23°C on Thu night, min 18°C on Wed morning). Wind will be generally light.
	Sunday 24			Monday 25			Tuesday 26			Wednesday 27			Thursday 28			Friday 29			Saturday 30
	AM	PM	Night	AM	PM	Night	AM	PM	Night	AM	PM	Night	AM	PM	Night	AM	PM	Night	AM	PM	Night
Rating (10 max)	0	0	0	0	0	1	1	0	1	1	0	0	0	0	0	0	0	0	0	0	0
Swell Height Map See all maps
Wave Height (m) & direction (?)	E	E	E	E	SE	SE	S	S	SE	ESE	ESE	ESE	ESE	ESE	SE	SE	SE	SE	SE	ESE	SSW
Period(s) (?)	11	11	11	9	8	8	7	7	9	9	9	8	8	8	9	9	9	8	8	7	4
Wave Graph (?)
Energy (?)	146	140	82	65	161	175	95	63	52	65	75	54	47	49	32	29	28	25	16	41	44
Wind (km/h)	SSE	S	SSE	WSW	SSW	NNW	W	SW	NNW	NNW	SSW	WNW	WSW	SSW	WSW	W	S	SW	SSW	SSW	SW
Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy	on	on	on	cross	cross- on	off	cross- off	cross- on	off	off	cross- on	cross- off	cross	cross- on	cross	glass	cross- on	cross	cross- on	cross- on	cross- on
High Tide / height (m)	8:55AM 1.05		9:13PM 1.11	9:36AM 1.06		9:54PM 1.07	10:17AM 1.06		10:34PM 1.01	10:58AM 1.03		11:15PM 0.95	11:40AM 1.00		11:58PM 0.88	12:24PM 0.96		12:44AM 0.81	1:14PM 0.93		1:37AM 0.76
Low Tide / height (m)		2:36PM 0.08	3:00AM 0.06		3:12PM 0.09	3:30AM 0.07		3:48PM 0.11	4:02AM 0.09		4:26PM 0.14	4:37AM 0.12		5:07PM 0.19		5:16AM 0.16	5:52PM 0.23		5:59AM 0.20	6:42PM 0.27

	Sunday 24			Monday 25			Tuesday 26			Wednesday 27			Thursday 28			Friday 29			Saturday 30
Sunrise	6:07	-	-	6:09	-	-	6:09	-	-	6:11	-	-	6:11	-	-	6:13	-	-	6:13	-	-
Sunset	-	7:35	-	-	7:34	-	-	7:31	-	-	7:30	-	-	7:29	-	-	7:27	-	-	7:25	-

Rain (mm)	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Temp. °C	22	23	22	22	23	24	21	22	22	19	21	22	21	22	23	21	22	22	22	22	22
Feels °C (?)	21	22	22	24	22	22	20	18	18	16	17	20	18	19	20	20	21	21	21	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 Road K (light winds from the SSE at Westhampton Beach/Francis S. Gabreski Airport 9 km from Road K). 0.9m 11s groundswell from the ESE with a 0.6m 4s local chop from the S and a 0.3m 8s swell from the SSE. 3 swells combining to make bigger set waves.
1 hour 56 minutes ago Road K

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1 h 56 min ago

6 km/h

SSE

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 Road K 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 Road K Surf forecast

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

Road K is 28 km (17 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.