Surf Forecasts:
Road K surf forecast from 7 Sep 2026:
- Best quality surf: Monday 7 Sep, 2AM (local time) - 1.5ft (0.5m), 8s period, E swell with offshore winds.
- Most powerful swell: Thursday 10 Sep, 11PM (local time) - 5.5ft (1.7m), 7s period, SSW swell with 329 kJ wave energy.
- Next surfable swell (1★+): Monday 7 Sep, 2AM (local time) - 1.5ft (0.5m), 8s period with E 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 Monday (Sep 07) at 2AM. The primary swell is predicted to be 0.5m and 8s period with a secondary swell of 0.2m and 9s. 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 1.7m 7s and forecast to arrive on Thursday (Sep 10) 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 3s period and expected on Friday (Sep 11) at 11AM.
| Wave Type | Time (EDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 2AM (Mon 7th Sep) | 1.5ft (0.5m) 8s |
| Best Surf | 2AM (Mon 7th Sep) | 1.5ft (0.5m) 8s |
| Most Powerful | 11PM (Thu 10th Sep) | 5.5ft (1.7m) 7s |
Table - best surf conditions forecast for Road K over the next 16 days.
The Lowdown
Alright, Rusty here. Let’s break down the next couple of weeks.
To be straight with you, it’s a lean period. We’re looking at a long stretch with almost nothing worth paddling out for. The first chance of a surfable wave isn’t until Monday the 7th, and even that’s a struggle. Most of the 16 days are just poor conditions.
The spot we’re stuck with is Road K (sandbar). It’s exposed and breaks very consistently, so it’ll always have something, but the quality is missing for almost the entire run.
Let’s start with Monday the 7th. The morning session is the only real chance. We’ve got a tiny 0.4m easterly swell, with a period of 10 seconds, and a clean offshore wind from the NW at 25 km/h. It’s surfable, but the combined energy is weak (45). The water temp is about 71°F, a touch warmer than normal for the season.
Tuesday the 8th is worse. The morning has a clean offshore wind, but the swell is only 0.2m – basically flat.
Wednesday the 9th gets messier. The afternoon brings a cross-onshore breeze at 30 km/h and a 1.0m swell from the SSW, but it’s short-period junk at 5 seconds.
Thursday the 10th is the biggest day, but it’s ugly. The swell hits 1.8m from the SSW with a 7-second period and moderate energy (328). But the wind is a fresh cross-shore at 35 km/h, making it lumpy and choppy. That size is getting into intermediate territory, but the quality is so bad it’s more of a kite-surfing day.
The rest of the run is tiny and weak. The wind shifts around, but the swell stays under 0.8m for almost everything. There’s a quick moment on Monday the 21st where the afternoon has a clean offshore wind from the NNW at 15 km/h, but the swell is only 0.4m.
So, the one and only standout is Monday morning the 7th at Road K. It’s the only time the wind is clean and the surf is technically rideable. Don’t expect much, just a few small, clean lines.
It’s a rough outlook. A blank run like this isn’t totally abnormal for the area, but it still hurts. Hang in there – forecasts can always change.
Rusty.
Short Range ForecastSome drizzle, heaviest during Sun night. Warm (max 25°C on Mon afternoon, min 18°C on Sun night). Winds increasing (light winds from the SSW on Sun night, fresh winds from the SSW by Wed afternoon). | Days 5-7 Weather SummaryLight rain (total 3mm), mostly falling on Thu night. Warm (max 24°C on Thu morning, min 16°C on Fri morning). Winds decreasing (strong winds from the SW on Wed night, light winds from the WSW by Fri night). | ||||||||||||||||||
Monday 7 | Tuesday 8 | Wednesday 9 | Thursday 10 | Friday 11 | Saturday 12 | ||||||||||||||
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) | E 8 | E 10 | E 10 | E 9 | SE 9 | SE 9 | SE 9 | SSE 8 | SSW 4 | SSW 6 | SSW 7 | SSW 7 | SSW 7 | S 6 | SSW 7 | SSW 6 | SE 9 | SE 10 | SE 10 |
Wave Graph  | |||||||||||||||||||
 kJ | 33 | 31 | 17 | 15 | 12 | 12 | 12 | 7 | 35 | 233 | 299 | 265 | 167 | 52 | 34 | 24 | 14 | 14 | 15 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | off | cross | cross-off | off | cross-on | cross | cross-on | cross-on | cross-on | cross | cross | off | off | cross-off | cross | glassy | cross-on | cross-on |
High Tide | 4:45AM0.90m | 5:12PM1.12m | 5:44AM0.98m | 6:07PM1.15m | 6:35AM1.05m | 6:58PM1.18m | 7:24AM1.11m | 7:45PM1.18m | 8:09AM1.16m | 8:30PM1.16m | 8:53AM1.17m | 9:14PM1.12m | |||||||
Low Tide | 10:10PM0.18m | 10:09AM0.16m | 11:24PM0.13m | 11:22AM0.12m | 00:22AM0.08m | 12:27PM0.07m | 1:08AM0.04m | 1:19PM0.04m | 1:47AM0.01m | 2:04PM0.02m | 2:22AM0.01m | 2:44PM0.02m | 2:55AM0.02m | ||||||
 |  | |  |  | | | | |  | |  |  | | | | | | | |
 | — | 6:22 | — | — | 6:22 | — | — | 6:24 | — | — | 6:24 | — | — | 6:26 | — | — | 6:26 | — | — |
 | 7:14 | — | 7:13 | — | — | 7:10 | — | — | 7:08 | — | — | 7:07 | — | — | 7:06 | — | — | 7:04 | — |
mm | 1 | — | — | — | — | — | — | — | — | — | — | — | 3 | — | — | — | — | — | — |
Temp °C | 20 | 20 | 25 | 24 | 21 | 24 | 24 | 23 | 23 | 23 | 24 | 24 | 23 | 16 | 22 | 22 | 20 | 21 | 21 |
Feels °C | 18 | 15 | 22 | 21 | 19 | 21 | 20 | 23 | 21 | 18 | 19 | 20 | 20 | 10 | 18 | 19 | 19 | 19 | 18 |
Swell 1 Height (m) Direction Period (s) | E 8 | E 10 | E 10 | E 9 | SSW 4 | SE 9 | SW 3 | SSE 8 | SE 10 | SE 9 | SE 9 | SE 9 | SSW 7 | S 6 | SSW 7 | SSW 6 | SSW 6 | SSE 6 | SE 10 |
| kJ | 33 | 31 | 17 | 15 | 2 | 12 | 3 | 7 | 15 | 13 | 13 | 13 | 167 | 52 | 34 | 24 | 7 | 8 | 15 |
Swell 2 Height (m) Direction Period (s) | SSE 9 | SE 9 | SE 8 | SE 8 | SE 9 | E 8 | SE 9 | SE 10 | E 9 | E 9 | E 8 | E 8 | SE 10 | SE 10 | SSE 7 | SSE 6 | SSE 6 | SE 10 | SSE 6 |
| kJ | 8 | 12 | 11 | 11 | 12 | 6 | 12 | 4 | 2 | 2 | 1 | 1 | 15 | 14 | 9 | 8 | 7 | 14 | 4 |
Swell 3 Height (m) Direction Period (s) | S 6 | S 5 | — | S 5 | E 9 | — | E 9 | E 9 | — | — | — | — | — | — | SE 10 | SE 9 | SE 9 | SSW 6 | S 8 |
| kJ | 2 | 2 | — | 1 | 6 | — | 6 | 2 | — | — | — | — | — | — | 14 | 14 | 14 | 3 | 1 |
Wind waves Height (m) Direction Period (s) | — | NW 2 | W 3 | WSW 3 | — | SW 4 | SW 4 | SW 4 | SSW 4 | SSW 6 | SSW 7 | SSW 7 | NNW 3 | N 3 | NNW 3 | — | — | — | SSW 3 |
| kJ | — | 1 | 1 | 1 | — | 3 | 6 | 4 | 35 | 233 | 299 | 265 | 3 | 5 | 1 | — | — | — | 3 |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 0 | 147 | 36 | 348 | 405 | 1540 | 533 | 533 | 1019 | 1019 | 134 | 143 | 0 | 0 | 0 | 36 | 718 | 718 | 313 |
Best forecast wave conditions in Long Island New York | |||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||
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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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