Surf Forecasts:
Road K surf forecast from 11 Sep 2026:
- Best quality surf: Thursday 10 Sep, 11PM (local time) - 3ft (0.9m), 7s period, SSW swell with offshore winds.
- Most powerful swell: Thursday 10 Sep, 11PM (local time) - 3ft (0.9m), 7s period, SSW swell with 77 kJ wave energy.
- Next surfable swell (1★+): Thursday 10 Sep, 11PM (local time) - 3ft (0.9m), 7s period with SSW swell.
Best Forecast Surf Conditions for Road K this week:
The surf forecast for Road K over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Thursday (Sep 10) at 11PM. The primary swell is predicted to be 0.9m and 7s period with a secondary swell of 0.3m and 10s. The wind is predicted to be offshore as the swell arrives.
The most powerful waves expected at Road K in the next 16 days are 0.9m 7s and forecast to arrive on Thursday (Sep 10) at 11PM. Winds are predicted to be offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.4m 4s period and expected on Monday (Sep 14) at 5AM.
| Wave Type | Time (EDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 11PM (Thu 10th Sep) | 3ft (0.9m) 7s |
| Best Surf | 11PM (Thu 10th Sep) | 3ft (0.9m) 7s |
| Most Powerful | 11PM (Thu 10th Sep) | 3ft (0.9m) 7s |
Table - best surf conditions forecast for Road K over the next 16 days.
The Lowdown
Hey folks, Rusty here. Let’s talk about Road K for the next couple weeks. I’m not gonna sugarcoat it – the surf forecast is looking pretty grim.
For the first week and a half, you’re looking at a whole lot of nothing. Small, weak swell, short-period stuff, and wind that’s never quite right. There’s no standout session in that whole run. The wave energy is all in the low to moderate range, but most of it is barely enough to push a foamie.
Thursday, September 10th has a small bump at about 4 feet from the SSW, but the period is a weak 7 seconds and it’s got a moderate cross-shore breeze. The water’s a touch warmer than normal at 71°F.
Friday morning, September 11th is your best bet early on. It’s only 2 feet from the south, but you’ve got a clean NNW offshore breeze. It’s surfable, but very ordinary. The afternoon turns cross-onshore and choppy.
From Saturday the 12th through Sunday the 20th, it’s small, choppy, or cross-onshore. The swell barely gets above 2 feet, and the energy is low. There’s a brief clean-up on Monday morning, September 14th with offshore wind, but the swell is still only 2 feet. You’d be hard-pressed to find a wave.
Now, Monday, September 21st is interesting. The swell jumps to about 5 feet in the morning and nearly 6 feet in the afternoon from the ENE. The combined energy finally gets into the moderate range. But the wind is cross-shore to cross-onshore from the east at 17-19 mph, putting a chop on it. Not clean.
Tuesday, September 22nd holds around 5 feet, but the wind gets stronger and more onshore. This setup looks more interesting for kite surfing than paddle surfing. Wednesday, September 23rd is a complete write-off with gale-force winds and completely blown-out conditions.
The last couple days, Thursday 24th and Friday 25th, drop back down in size. Friday afternoon has a clean cross-offshore breeze, but the wave height is only 2 feet.
Bottom line: No true standouts. The week of the 21st has the most size, but the wind ruins it. Beginners can look at the small, offshore windows (like Friday morning 11 Sep or Monday morning 14 Sep) for safe, clean but tiny waves. For everyone else, it’s a long, flat patch. Forecasts can change, but this one looks rough.
Rusty.
Short Range ForecastHeavy rain (total 24mm), heaviest during Sun morning. Warm (max 27°C on Thu night, min 19°C on Sat morning). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Warm (max 24°C on Sun night, min 18°C on Mon night). Wind will be generally light. | ||||||||||||||||||
Friday 11 | Saturday 12 | Sunday 13 | Monday 14 | Tuesday 15 | Wednesday 16 | ||||||||||||||
Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | |
Swell Height Map |  |  |  |  |  |  |  | ||||||||||||
Wave Height (m) Direction Period (s) | SSW 6 | S 6 | S 6 | S 6 | SE 9 | SE 10 | SE 10 | SSE 6 | SSE 5 | SE 9 | SE 9 | SE 9 | SE 8 | E 5 | SE 7 | ESE 7 | ESE 9 | SSW 4 | SW 4 |
Wave Graph  | |||||||||||||||||||
 kJ | 55 | 24 | 24 | 20 | 14 | 15 | 24 | 53 | 32 | 29 | 21 | 19 | 29 | 18 | 14 | 30 | 8 | 10 | 7 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | off | cross-on | cross-off | cross-on | on | on | cross | cross | cross-off | off | off | cross-off | cross-on | on | cross-on | cross-on | cross-on | cross-on |
High Tide | 8:09AM1.16m | 8:30PM1.16m | 8:53AM1.17m | 9:14PM1.12m | 9:36AM1.16m | 9:57PM1.06m | 10:20AM1.13m | 10:40PM0.99m | 11:03AM1.09m | 11:24PM0.92m | 11:48AM1.03m | 00:11AM0.85m | |||||||
Low Tide | 1:47AM0.01m | 2:04PM0.02m | 2:22AM0.01m | 2:44PM0.02m | 2:55AM0.02m | 3:22PM0.05m | 3:29AM0.05m | 3:59PM0.09m | 4:04AM0.09m | 4:38PM0.14m | 4:41AM0.14m | 5:21PM0.20m | |||||||
 |  |  |  | | |  |  | | | | | | | | | | | | |
 | — | 6:26 | — | — | 6:26 | — | — | 6:28 | — | — | 6:28 | — | — | 6:30 | — | — | 6:31 | — | — |
 | 7:07 | — | 7:06 | — | — | 7:04 | — | — | 7:02 | — | — | 7:00 | — | — | 6:59 | — | — | 6:58 | — |
mm | — | — | — | — | — | — | 7 | 17 | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 27 | 20 | 23 | 22 | 20 | 22 | 22 | 22 | 23 | 24 | 21 | 24 | 22 | 19 | 19 | 19 | 20 | 21 | 21 |
Feels °C | 26 | 18 | 21 | 20 | 18 | 20 | 20 | 24 | 25 | 25 | 16 | 19 | 17 | 18 | 17 | 15 | 17 | 19 | 19 |
Swell 1 Height (m) Direction Period (s) | SSW 6 | S 6 | S 6 | S 6 | SSW 6 | SE 10 | SE 10 | SSE 6 | SSE 5 | SE 6 | SE 6 | SE 6 | SE 8 | E 5 | ESE 5 | ESE 7 | ESE 5 | ESE 7 | ESE 6 |
| kJ | 55 | 24 | 24 | 20 | 11 | 15 | 24 | 53 | 32 | 27 | 21 | 17 | 29 | 18 | 14 | 30 | 5 | 10 | 6 |
Swell 2 Height (m) Direction Period (s) | SE 8 | SSE 8 | SE 9 | ESE 9 | SE 9 | SSW 5 | S 6 | SE 10 | SE 9 | SE 9 | SE 9 | SE 9 | S 6 | SE 6 | SE 7 | ESE 9 | ESE 9 | ESE 5 | SE 9 |
| kJ | 10 | 6 | 14 | 8 | 14 | 6 | 1 | 33 | 31 | 29 | 20 | 19 | 12 | 9 | 11 | 8 | 8 | 2 | 3 |
Swell 3 Height (m) Direction Period (s) | SE 10 | ESE 10 | — | SE 6 | SE 6 | SSE 6 | — | — | — | — | SW 4 | SSW 6 | SE 15 | SSW 6 | ESE 9 | S 6 | SE 13 | SE 9 | SE 13 |
| kJ | 4 | 9 | — | 2 | 6 | 4 | — | — | — | — | 4 | 12 | 8 | 7 | 8 | 1 | 7 | 3 | 7 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | ESE 2 | S 5 | — | — | SW 3 | N 3 | — | E 4 | — | — | — | SSW 3 | SSW 4 | SW 4 |
| kJ | — | — | — | — | — | 1 | 21 | — | — | 5 | 2 | — | 12 | — | — | — | 4 | 9 | 7 |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 17 | 0 | 0 | 258 | 36 | 1174 | 1175 | 254 | 59 | 31 | 4 | 78 | 0 | 313 | 718 | 2536 | 777 | 777 | 273 |
Best forecast wave conditions in Long Island New York | |||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||
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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 16 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.
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