Surf Forecasts:
Road K surf forecast from 4 Sep 2026:
- Best quality surf: Friday 4 Sep, 2PM (local time) - 1.5ft (0.4m), 8s period, SE swell with cross-offshore winds.
- Most powerful swell: Thursday 10 Sep, 8AM (local time) - 8ft (2.4m), 8s period, SSW swell with 679 kJ wave energy.
- Next surfable swell (1★+): Friday 4 Sep, 2PM (local time) - 1.5ft (0.4m), 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 2PM. The primary swell is predicted to be 0.4m and 8s period with a secondary swell of 0.4m and 4s. 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 2.4m 8s and forecast to arrive on Thursday (Sep 10) at 8AM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.0m 4s period and expected on Friday (Sep 11) at 2AM.
| Wave Type | Time (EDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 2PM (Fri 4th Sep) | 1.5ft (0.4m) 8s |
| Best Surf | 2PM (Fri 4th Sep) | 1.5ft (0.4m) 8s |
| Most Powerful | 8AM (Thu 10th Sep) | 8ft (2.4m) 8s |
Table - best surf conditions forecast for Road K over the next 16 days.
The Lowdown
Right oh, let's have a look at what's on the table for the next couple of weeks. Straight up, I gotta be honest with you—this is a tough one. The swell window is just not cooperating, and we're staring down a long, flat spell. For the first ten days, from the 4th right through to the 13th of September, it's pretty much a write-off. We're talking tiny, mushy slop at best, and most of the time it's flat. The wind is all over the place too, so don't bother getting your hopes up.
The only glimpse of anything even close to rideable comes on the morning of Monday the 14th of September at Road K (sandbar). The morning is glassy, which is a beautiful thing, and there's a tiny bit of energy in the water. The combined energy is a weak 51, with a 1ft swell from the SE. The water temp is around 70°, which feels about average for this time of year, nothing weird going on there. The waves are labelled as "surfable but very ordinary," so we're talking about something you could paddle out on, but it's not going to be a session to write home about. It's a sandbar, and with a short period like 9 seconds, it's just not going to have any punch.
After that, we get another gap. The next sniff of something comes on the morning of Wednesday the 16th of September. Again, glassy conditions, which is a positive, but the swell is still tiny at 3ft from the ESE with a period of 6 seconds. The combined energy is 88, still very weak. Again, it's labelled as "surfable but very ordinary." It's a sandbar, and with that short period, it's going to be a bumpy, crumbly wave.
The last bit of interest is on the afternoon of Saturday the 19th of September. The wind is light and cross-off, so it'll be clean. The swell is a tiny 1ft from the SE with a period of 12 seconds. That long period will give it a bit more shape, but at that size, it's barely a ripple. They call it "surfable but very ordinary." The combined energy is a weak 60.
Honestly, there's no standout day here. The best you can hope for is a glassy morning with a tiny, weak wave. If you're desperate for a paddle, the 14th or the 16th are your best shots, but don't expect much. This is one of those stretches where the forecast is pretty reliable in showing us we're in for a flat spell. Don't hold your breath.
Rusty
Short Range ForecastLight rain (total 5mm), mostly falling on Fri morning. Warm (max 27°C on Fri afternoon, min 17°C on Sat night). Wind will be generally light. | Days 4-6 Weather SummaryLight rain (total 5mm), mostly falling on Wed night. Warm (max 25°C on Tue night, min 18°C on Mon morning). Winds increasing (calm on Wed morning, strong winds from the SW by Wed night). | ||||||||||||||||||||
Friday 4 | Saturday 5 | Sunday 6 | Monday 7 | Tuesday 8 | Wednesday 9 | Thursday 10 | |||||||||||||||
AM | 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 8 | SE 8 | SE 8 | SE 8 | SE 8 | E 6 | ENE 7 | E 7 | E 10 | E 10 | E 11 | E 10 | SSW 5 | SW 5 | SSW 5 | SSW 5 | SE 10 | SSW 7 | SSW 8 | SSW 7 | SSW 7 |
Wave Graph  | |||||||||||||||||||||
 kJ | 24 | 23 | 16 | 9 | 9 | 67 | 77 | 38 | 48 | 30 | 36 | 31 | 17 | 11 | 9 | 9 | 18 | 430 | 345 | 181 | 53 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | cross | off | off | cross-off | cross-off | cross-off | cross-on | off | off | cross-on | cross-off | off | cross | cross-off | glassy | cross-on | cross-on | cross-off | off | off |
High Tide | 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 | 7:24AM1.11m | 7:45PM1.18m | ||||||||
Low Tide | 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 | 1:19PM0.04m | 1:47AM0.01m | ||||||||
 |  |  |  | |  | | | | | |  | | | | |  | | | | | |
 | 6:18 | — | — | 6:20 | — | — | 6:20 | — | — | 6:22 | — | — | 6:22 | — | — | 6:24 | — | — | 6:24 | — | — |
 | — | 7:17 | — | — | 7:15 | — | — | 7:14 | — | — | 7:13 | — | — | 7:10 | — | — | 7:08 | — | — | 7:07 | — |
mm | 3 | — | — | — | — | 2 | — | — | — | — | — | — | — | — | — | — | 1 | 4 | — | — | — |
Temp °C | 24 | 27 | 27 | 21 | 23 | 20 | 18 | 21 | 21 | 20 | 23 | 22 | 21 | 24 | 25 | 21 | 22 | 23 | 25 | 24 | 22 |
Feels °C | 25 | 27 | 27 | 18 | 22 | 17 | 15 | 20 | 19 | 17 | 20 | 18 | 19 | 23 | 21 | 23 | 22 | 21 | 21 | 17 | 16 |
Swell 1 Height (m) Direction Period (s) | SSW 4 | ESE 7 | E 7 | SSW 6 | E 6 | SSW 6 | E 7 | E 7 | E 10 | E 10 | E 11 | E 10 | SSW 5 | E 9 | SSW 5 | SSW 5 | ENE 5 | SE 9 | SSW 8 | SSW 7 | SSW 7 |
| kJ | 7 | 15 | 14 | 6 | 7 | 8 | 43 | 38 | 48 | 30 | 36 | 31 | 17 | 7 | 9 | 9 | 7 | 13 | 345 | 181 | 53 |
Swell 2 Height (m) Direction Period (s) | SE 8 | SE 8 | SE 8 | SE 8 | SSW 5 | — | SSW 6 | SSW 6 | SSW 3 | SSW 5 | S 6 | SE 8 | E 10 | SE 9 | SE 9 | ENE 4 | SE 10 | E 9 | SE 9 | ESE 9 | ESE 10 |
| kJ | 24 | 23 | 16 | 9 | 6 | — | 8 | 7 | 1 | 3 | 3 | 3 | 16 | 3 | 3 | 3 | 15 | 1 | 13 | 9 | 9 |
Swell 3 Height (m) Direction Period (s) | E 6 | — | SSW 4 | E 6 | SE 8 | — | SE 9 | E 9 | S 6 | SE 9 | SE 8 | S 6 | SE 9 | — | E 9 | SE 9 | E 9 | — | E 8 | — | — |
| kJ | 7 | — | 1 | 7 | 9 | — | 3 | 7 | 2 | 3 | 3 | 1 | 3 | — | 6 | 3 | 2 | — | 1 | — | — |
Wind waves Height (m) Direction Period (s) | — | SW 4 | — | N 2 | — | E 6 | ENE 7 | — | — | N 3 | — | SW 4 | — | SW 5 | NE 2 | — | SSW 4 | SSW 7 | — | NW 3 | NW 4 |
| kJ | — | 4 | — | 1 | — | 67 | 77 | — | — | 2 | — | 6 | — | 11 | 2 | — | 18 | 430 | — | 1 | 28 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 36 | 245 | 313 | 718 | 732 | 225 | 31 | 61 | 0 | 191 | 209 | 173 | 36 | 859 | 368 | 533 | 1151 | 1092 | 117 | 76 | 775 |
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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