Surf Forecasts:
Road K surf forecast from 31 Aug 2026:
- Best quality surf: Friday 4 Sep, 2AM (local time) - 2.5ft (0.8m), 8s period, ESE swell with offshore winds.
- Most powerful swell: Wednesday 2 Sep, 5PM (local time) - 4.5ft (1.3m), 7s period, ESE swell with 158 kJ wave energy.
- Next surfable swell (1★+): Friday 4 Sep, 2AM (local time) - 2.5ft (0.8m), 8s period with ESE 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 0.8m and 8s period with a secondary swell of 0.5m and 4s. 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 1.3m 7s and forecast to arrive on Wednesday (Sep 02) at 5PM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.7m 4s period and expected on Sunday (Sep 06) at 8AM.
| Wave Type | Time (EDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 2AM (Fri 4th Sep) | 2.5ft (0.8m) 8s |
| Best Surf | 2AM (Fri 4th Sep) | 2.5ft (0.8m) 8s |
| Most Powerful | 5PM (Wed 2nd Sep) | 4.5ft (1.3m) 7s |
Table - best surf conditions forecast for Road K over the next 16 days.
The Lowdown
Alright, let me tell you what I’m seeing for Road K. It’s a bit of a tough stretch ahead, but there’s a light at the end of the tunnel if you’re patient.
Right now, and for the next week and a half, it’s pretty grim. We’ve got a long run of poor surf conditions starting from the 31st of August all the way through to the 12th of September. That’s a solid two-week gap with hardly anything worth paddling out for. The swell is tiny, mostly around 1ft to 1.5ft, with a short, weak period of 6 to 10 seconds, and the combined swell energy is basically nothing, often under 50. The wind is a mess too – mostly cross, cross-on, or howling, which chops everything up.
The first real glimmer of hope comes on Sunday the 13th of September. The morning session at Road K is the standout. We’re looking at a solid 6.5ft swell from the SSW, with a period of 7 seconds and a combined energy of 350 – that’s proper moderate energy. The wind is a light cross-offshore from the NNE, which will keep the surface clean. This is a sandbar break, so it’s exposed and will pick up that SSW swell well. The water is looking like around 71.6°F at the start of the period, which is about normal for this time of year. The swell is over 5ft so it’s a bit much for beginners, but for anyone with a bit of experience, that Sunday morning is the one to circle.
Following that, Monday the 14th of September morning is also worth a mention. It’s a bit smaller, with 4.5ft from the S, period of 7 seconds, and a combined energy of 212. The wind is offshore from the NW and light, so it’ll be clean again. Not as powerful as the day before, but still a fun option.
The rest of the forecast after that drops back into tiny, weak surf. So, if you’re keen, your best bet is hitting it on the morning of Sunday the 13th. It’s a long wait, but it should be worth it.
Short Range ForecastModerate rain (total 19mm), heaviest on Mon night. Warm (max 23°C on Tue afternoon, min 20°C on Mon night). Winds decreasing (fresh winds from the E on Tue night, light winds from the SE by Wed night). | Days 5-7 Weather SummarySome drizzle, heaviest during Thu afternoon. Warm (max 28°C on Fri afternoon, min 18°C on Sun morning). Wind will be generally light. | |||||||||||||||||||
Mon 31 | Tuesday 1 | Wednesday 2 | Thursday 3 | Friday 4 | Saturday 5 | Sunday 6 | ||||||||||||||
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 7 | SE 7 | SE 8 | ESE 6 | ESE 6 | ESE 7 | ESE 7 | SE 6 | SE 9 | ESE 8 | ESE 7 | ESE 7 | S 6 | ESE 7 | ESE 8 | E 7 | ENE 4 | E 8 | ENE 9 |
Wave Graph  | ||||||||||||||||||||
 kJ | 23 | 19 | 12 | 23 | 139 | 139 | 158 | 113 | 58 | 38 | 76 | 26 | 15 | 19 | 21 | 19 | 15 | 10 | 12 | 28 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | cross-on | cross-on | cross-on | cross | cross | cross | cross-on | cross | cross | off | cross-off | off | off | cross-off | cross-on | cross-off | cross-off | cross-off | cross-off |
High Tide | 10:42PM1.02m | 11:08AM1.12m | 11:28PM0.97m | 11:57AM1.10m | 00:19AM0.91m | 12:52PM1.08m | 1:19AM0.86m | 1:55PM1.06m | 2:28AM0.83m | 3:04PM1.06m | 3:39AM0.85m | 4:11PM1.08m | 4:45AM0.90m | |||||||
Low Tide | 3:59PM0.02m | 4:13AM-0.00m | 4:46PM0.05m | 4:58AM0.02m | 5:38PM0.10m | 5:47AM0.06m | 6:36PM0.15m | 6:43AM0.11m | 7:40PM0.19m | 7:46AM0.15m | 8:52PM0.20m | 8:55AM0.17m | 10:10PM0.18m | |||||||
 |  |  |  |  |  | |  | | | |  | |  | | | | | | | |
 | — | — | 6:16 | — | — | 6:16 | — | — | 6:18 | — | — | 6:18 | — | — | 6:20 | — | — | 6:20 | — | — |
 | 7:23 | — | — | 7:22 | — | — | 7:21 | — | — | 7:19 | — | — | 7:17 | — | — | 7:15 | — | — | 7:14 | — |
mm | — | 10 | 3 | 1 | 1 | — | — | — | 4 | 1 | — | — | — | — | — | — | — | — | — | — |
Temp °C | 21 | 22 | 22 | 23 | 21 | 20 | 21 | 22 | 23 | 24 | 25 | 24 | 28 | 26 | 21 | 23 | 21 | 19 | 21 | 17 |
Feels °C | 20 | 22 | 25 | 26 | 19 | 17 | 19 | 25 | 24 | 25 | 27 | 25 | 27 | 23 | 17 | 23 | 20 | 14 | 17 | 11 |
Swell 1 Height (m) Direction Period (s) | SE 8 | SE 7 | SE 7 | SE 8 | SE 12 | SE 11 | ESE 7 | ESE 7 | SE 6 | ESE 6 | ESE 8 | ESE 7 | ESE 7 | S 6 | ESE 7 | ESE 8 | E 7 | SSE 9 | ENE 5 | ENE 9 |
| kJ | 23 | 19 | 12 | 23 | 52 | 96 | 158 | 113 | 58 | 33 | 76 | 26 | 15 | 19 | 21 | 19 | 15 | 7 | 7 | 28 |
Swell 2 Height (m) Direction Period (s) | SSW 5 | ESE 3 | SE 8 | S 3 | SSW 4 | SSW 5 | SE 10 | SE 9 | SE 9 | SE 9 | SSW 4 | SE 8 | SSW 5 | ESE 6 | SSW 6 | SSW 6 | SSE 9 | E 7 | E 8 | SW 3 |
| kJ | 7 | 1 | 3 | 1 | 2 | 2 | 63 | 55 | 50 | 38 | 11 | 18 | 9 | 13 | 6 | 3 | 8 | 4 | 12 | 2 |
Swell 3 Height (m) Direction Period (s) | ENE 3 | — | SE 10 | SE 13 | — | — | SSW 5 | SSW 5 | — | — | — | SSW 4 | SE 8 | SE 8 | S 7 | S 7 | SSW 5 | S 6 | SSW 6 | SE 9 |
| kJ | 2 | — | 4 | 7 | — | — | 2 | 3 | — | — | — | 2 | 11 | 10 | 1 | 1 | 2 | 3 | 3 | 3 |
Wind waves Height (m) Direction Period (s) | E 3 | SSE 4 | SSE 3 | ESE 3 | ESE 6 | ESE 6 | — | — | SSW 5 | SW 4 | — | N 3 | — | — | NNE 2 | ENE 4 | — | ENE 4 | — | W 3 |
| kJ | 2 | 3 | 2 | 1 | 139 | 139 | — | — | 3 | 18 | — | 1 | — | — | 1 | 1 | — | 10 | — | 8 |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 1174 | 313 | 636 | 368 | 187 | 530 | 293 | 103 | 51 | 31 | 0 | 0 | 36 | 0 | 2366 | 2575 | 789 | 1645 | 313 | 208 |
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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