
Surf Forecasts:
Road K surf forecast from 4 Sep 2026:
- Best quality surf: Friday 4 Sep, 2AM (local time) - 1.5ft (0.5m), 8s period, SE swell with cross-offshore winds.
- Most powerful swell: Thursday 10 Sep, 2PM (local time) - 7ft (2.2m), 7s period, SSW swell with 542 kJ wave energy.
- Next surfable swell (1★+): Friday 4 Sep, 2AM (local time) - 1.5ft (0.5m), 8s period with SE 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 Friday (Sep 04) at 2AM. The primary swell is predicted to be 0.5m and 8s period with a secondary swell of 0.5m and 4s. Another secondary swell of 0.6m and 4s is also forecast. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Road K in the next 16 days are 2.2m 7s and forecast to arrive on Thursday (Sep 10) 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 0.3m 2s period and expected on Saturday (Sep 05) at 8AM.
| Wave Type | Time (EDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 2AM (Fri 4th Sep) | 1.5ft (0.5m) 8s |
| Best Surf | 2AM (Fri 4th Sep) | 1.5ft (0.5m) 8s |
| Most Powerful | 2PM (Thu 10th Sep) | 7ft (2.2m) 7s |
Table - best surf conditions forecast for Road K over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let’s have a look at what’s cooking for Road K over the next couple of weeks.
To be honest, it’s a pretty bleak stretch to start with. We’ve got a solid week of tiny, weak waves and windy conditions that just won’t let up. The first real surfable day doesn’t show up until Saturday morning, the 6th, but even then it’s only 3 ft from the ENE with a short, weak 6-second period and a combined energy of just (72). It’s clean with a moderate offshore breeze, but that’s about the only positive. The water temp is sitting at 71°, which is about average for this time of year.
Sunday the 7th morning is similar – clean, offshore winds, but the swell is only 2 ft from the East. It’s surfable in the sense you can get a float, but there’s no power behind it. The next standout... well, there isn’t one. The swell tries to kick up a bit on the 10th of September, hitting 6 ft from the SSW, but that comes with a nasty 30 km/h cross-breeze and a combined energy of (333). The period is just 7 seconds, so it’s going to be lumpy, messy, and a real chore. That’s expert territory due to the size and wind, not a fun paddle.
From there, the rest of the second week is a mix of small, weak swells and strong winds. The wind looks offshore or cross-off a few times, like on the 11th and 12th, but the waves are tiny – 1 ft to 2 ft. The combined energy barely cracks 100. It’s a long stretch of nothing to write home about. There’s even a period of swell from the SE with a 13-second period on the 17th, but it’s only 1 ft, so that long period just means long waits for a knee-high wave.
Honestly, if you’re looking for a real session, this isn’t the window. With the wind and chop on the bigger days, this setup looks more interesting for kite surfing than paddle surfing. Keep an eye on the forecast, though – it tends not to stay this flat forever.
Rusty.
Short Range ForecastLight rain (total 7mm), mostly falling on Thu night. Warm (max 27°C on Fri night, min 16°C on Sun morning). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Warm (max 24°C on Mon afternoon, min 17°C on Tue night). Winds increasing (light winds from the NNW on Sun afternoon, fresh winds from the WSW by Mon night). | |||||||||||||||||||
Thu 3 | Friday 4 | Saturday 5 | Sunday 6 | Monday 7 | Tuesday 8 | Wednesday 9 | ||||||||||||||
PM | 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) | SE 9 | SE 8 | SE 8 | SE 8 | SE 8 | SE 8 | SE 8 | ENE 5 | E 7 | E 7 | E 8 | E 10 | E 10 | E 10 | E 10 | SW 5 | SSE 9 | SSW 5 | SE 10 | SSW 7 |
Wave Graph | ||||||||||||||||||||
38 | 35 | 24 | 23 | 16 | 15 | 15 | 37 | 56 | 45 | 33 | 17 | 32 | 31 | 17 | 8 | 8 | 9 | 15 | 302 | |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-off | off | cross-on | off | off | off | cross-off | cross-off | off | off | off | cross | cross-off | off | off | cross-off | cross-on | on | cross-on |
High Tide | 1:19AM0.86m | 1:55PM1.06m | 2:28AM0.83m | 3:04PM1.06m | 3:39AM0.85m | 4:11PM1.08m | 4:45AM0.90m | 5:12PM1.12m | 5:44AM0.98m | 6:07PM1.15m | 6:35AM1.05m | 6:58PM1.18m | ||||||||
Low Tide | 6:36PM0.15m | 6:43AM0.11m | 7:40PM0.19m | 7:46AM0.15m | 8:52PM0.20m | 8:55AM0.17m | 10:10PM0.18m | 10:09AM0.16m | 11:24PM0.13m | 11:22AM0.12m | 00:22AM0.08m | 12:27PM0.07m | 1:08AM0.04m | |||||||
— | — | 6:18 | — | — | 6:20 | — | — | 6:20 | — | — | 6:22 | — | — | 6:22 | — | — | 6:24 | — | — | |
7:19 | — | — | 7:17 | — | — | 7:15 | — | — | 7:14 | — | — | 7:13 | — | — | 7:10 | — | — | 7:08 | — | |
mm | — | 4 | 1 | — | — | — | — | 2 | — | — | — | — | — | — | — | — | — | — | 1 | 5 |
Temp °C | 25 | 24 | 24 | 26 | 27 | 21 | 23 | 21 | 17 | 23 | 22 | 20 | 24 | 24 | 20 | 24 | 23 | 18 | 19 | 23 |
Feels °C | 25 | 26 | 27 | 28 | 28 | 18 | 22 | 20 | 14 | 20 | 19 | 17 | 20 | 20 | 17 | 19 | 19 | 16 | 19 | 21 |
Swell 1 Height (m) Direction Period (s) | ESE 6 | SE 8 | SE 8 | SE 8 | SSW 6 | SSW 6 | SE 8 | S 7 | E 7 | E 7 | E 8 | E 10 | E 10 | E 10 | SW 5 | E 9 | SW 4 | SSW 5 | SE 10 | SE 9 |
22 | 35 | 24 | 23 | 12 | 10 | 15 | 24 | 56 | 45 | 33 | 17 | 32 | 31 | 11 | 7 | 5 | 9 | 15 | 13 | |
Swell 2 Height (m) Direction Period (s) | SE 9 | S 4 | SSW 4 | ESE 7 | E 7 | ENE 6 | E 6 | ESE 8 | SSW 6 | SSW 6 | E 10 | ENE 4 | SE 8 | SE 8 | E 10 | SE 9 | SSE 9 | SE 8 | E 3 | E 9 |
38 | 9 | 6 | 15 | 14 | 13 | 7 | 11 | 8 | 7 | 8 | 2 | 3 | 3 | 17 | 3 | 8 | 3 | 1 | 2 | |
Swell 3 Height (m) Direction Period (s) | — | — | E 6 | SSW 4 | SE 8 | SE 8 | SSW 6 | SE 8 | SE 9 | SE 9 | S 6 | SE 9 | S 5 | — | SE 9 | — | E 9 | SE 10 | E 9 | — |
— | — | 7 | 3 | 16 | 15 | 6 | 9 | 3 | 3 | 2 | 3 | 2 | — | 3 | — | 6 | 4 | 2 | — | |
Wind waves Height (m) Direction Period (s) | SSW 4 | SSW 4 | — | — | — | — | — | ENE 5 | ENE 6 | — | SW 3 | — | — | SW 4 | — | SW 5 | — | — | S 4 | SSW 7 |
12 | 11 | — | — | — | — | — | 37 | 52 | — | 1 | — | — | 14 | — | 8 | — | — | 14 | 302 | |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 134 | 0 | 36 | 263 | 0 | 636 | 2575 | 225 | 238 | 0 | 0 | 36 | 208 | 67 | 368 | 368 | 78 | 603 | 317 | 1151 |
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.










