Surf Forecasts:
Road K surf forecast from 31 Aug 2026:
- Best quality surf: Thursday 3 Sep, 11PM (local time) - 3ft (0.9m), 5s period, SSW swell with offshore winds.
- Most powerful swell: Wednesday 2 Sep, 5PM (local time) - 4.5ft (1.4m), 7s period, ESE swell with 176 kJ wave energy.
- Next surfable swell (1★+): Thursday 3 Sep, 11PM (local time) - 3ft (0.9m), 5s 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 03) at 11PM. The primary swell is predicted to be 0.9m and 5s period with a secondary swell of 0.8m and 5s. Another secondary swell of 0.5m and 7s is also forecast. 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 1.4m 7s and forecast to arrive on Wednesday (Sep 02) at 5PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.2m 6s period and expected on Sunday (Sep 06) at 8AM.
| Wave Type | Time (EDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 11PM (Thu 3rd Sep) | 3ft (0.9m) 5s |
| Best Surf | 11PM (Thu 3rd Sep) | 3ft (0.9m) 5s |
| Most Powerful | 5PM (Wed 2nd Sep) | 4.5ft (1.4m) 7s |
Table - best surf conditions forecast for Road K over the next 16 days.
The Lowdown
Right, mate, Rusty here. Let’s have a look at what’s on the cards for Road K.
Honestly, I’m scratching my head a bit. The next two weeks are looking pretty grim for a decent paddle. There’s a tiny bit of hope late in the second week, but we’ve got a long, dry spell before that. We’re looking at a solid gap of weak, onshore junk from the end of August all the way through to the first week of September. The first record shows a tiny 1.3ft swell from the SE on the 31st of August, but with a cross-shore wind and a combined energy of just 28, it’s not worth getting wet for. That trend of poor conditions and tiny waves holds steady for days.
Then, around the 2nd of September, we see a spike in energy with a combined swell energy of 241, but the swell is a messy 4.9ft from the ESE with a short 6-second period, and a fresh 18.6 mph cross-shore wind is going to turn it into a lumpy, blown-out mess. That’s kite-surfing territory, not for a surfboard.
The real standout, if you can call it that, comes late in the game. Look at Saturday the 12th of September. The morning session at Road K is the best we’ll see. It’s a clean 5.2ft swell from the SSW, with a moderate offshore wind from the WNW. The combined energy hits 213, so there’s some push. The water temp is about average for the time of year, around 71.6°, so nothing weird there. Keep in mind, this swell is short period at 6 seconds, so it’ll be a bit wonky and fat on the face, but it’s clean. The afternoon nukes up with a 24.8 mph offshore wind, which will make it glassy but a real battle to get out. This one is for the experienced crew only.
Before that, Friday the 11th of September has a clean morning with a 1.3ft SE swell and a 12.4 mph offshore wind, but it’s just too small to get excited about. So, if you’re desperate, pencil in the 12th of September morning. It’s not a classic, but it’s the only clean, ridable wave in the whole outlook.
Short Range ForecastModerate rain (total 14mm), heaviest on Mon night. Warm (max 23°C on Tue morning, min 19°C on Tue night). Winds increasing (light winds from the SE on Mon afternoon, fresh winds from the ENE by Tue night). | Days 4-6 Weather SummaryLight rain (total 9mm), mostly falling on Thu morning. Warm (max 26°C on Fri afternoon, min 18°C on Sat morning). Wind will be generally light. | ||||||||||||||||||||
Monday 31 | Tuesday 1 | Wednesday 2 | Thursday 3 | Friday 4 | Saturday 5 | Sunday 6 | |||||||||||||||
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 7 | SE 7 | SE 8 | ESE 6 | ESE 6 | ESE 7 | ESE 7 | SE 9 | ESE 9 | SE 8 | E 7 | E 7 | S 6 | SSW 6 | E 8 | SSW 7 | ENE 7 | ENE 7 | E 6 |
Wave Graph  | |||||||||||||||||||||
 kJ | 17 | 23 | 19 | 7 | 17 | 165 | 165 | 176 | 107 | 50 | 99 | 33 | 26 | 24 | 21 | 13 | 10 | 10 | 147 | 51 | 36 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross-on | cross-on | cross | cross-off | cross | cross | cross-on | cross-on | cross | cross-on | off | cross-off | cross-off | off | cross-off | cross-off | cross-off | cross-off | cross-on | cross |
High Tide | 10:23AM1.12m | 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 | ||||||||
 | |  | |  |  |  | | | |  |  |  | |  | | |  | | | | |
 | 6:15 | — | — | 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 | — | — | 7 | — | 1 | 2 | — | — | 4 | 5 | 1 | 3 | — | — | — | — | — | — | — | — | — |
Temp °C | 21 | 21 | 21 | 23 | 23 | 20 | 20 | 20 | 23 | 23 | 24 | 25 | 23 | 26 | 26 | 19 | 21 | 20 | 19 | 21 | 20 |
Feels °C | 21 | 22 | 21 | 25 | 25 | 17 | 16 | 17 | 23 | 23 | 25 | 27 | 24 | 26 | 25 | 16 | 17 | 17 | 16 | 19 | 16 |
Swell 1 Height (m) Direction Period (s) | S 5 | SE 8 | SE 7 | SE 7 | SE 8 | SE 12 | SE 11 | SE 10 | ESE 7 | ESE 6 | ESE 9 | SSW 5 | E 7 | S 5 | S 6 | SSW 6 | E 8 | SSW 7 | SSW 6 | E 8 | E 6 |
| kJ | 11 | 23 | 19 | 7 | 17 | 52 | 75 | 61 | 107 | 39 | 99 | 24 | 26 | 14 | 21 | 13 | 10 | 10 | 8 | 51 | 36 |
Swell 2 Height (m) Direction Period (s) | SE 8 | SSW 5 | S 4 | S 3 | S 3 | SW 4 | SW 4 | SW 5 | SE 9 | SE 9 | ENE 6 | E 7 | S 5 | E 7 | ESE 7 | E 7 | SSW 6 | SE 9 | SE 9 | S 6 | E 10 |
| kJ | 17 | 7 | 1 | 1 | 1 | 1 | 1 | 1 | 68 | 50 | 7 | 23 | 11 | 24 | 15 | 8 | 7 | 3 | 3 | 3 | 30 |
Swell 3 Height (m) Direction Period (s) | — | — | — | SE 8 | SE 13 | — | — | — | SSW 5 | — | — | SE 8 | SE 8 | SE 8 | SE 8 | SE 8 | ESE 8 | — | — | SE 9 | SE 9 |
| kJ | — | — | — | 3 | 7 | — | — | — | 2 | — | — | 33 | 11 | 11 | 10 | 10 | 6 | — | — | 3 | 3 |
Wind waves Height (m) Direction Period (s) | — | — | — | SSW 3 | — | ESE 6 | ESE 6 | ESE 7 | — | S 4 | SSW 5 | — | — | — | NNW 3 | N 3 | NE 2 | ENE 6 | ENE 7 | ENE 7 | — |
| kJ | — | — | — | 2 | — | 165 | 165 | 176 | — | 24 | 42 | — | — | — | 5 | 5 | 2 | 63 | 147 | 50 | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 875 | 718 | 313 | 636 | 368 | 277 | 573 | 292 | 194 | 152 | 31 | 0 | 0 | 0 | 0 | 777 | 208 | 167 | 56 | 208 | 59 |
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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