Surf Forecasts:
Road K surf forecast from 5 Sep 2026:
- Best quality surf: Sunday 6 Sep, 11AM (local time) - 2.5ft (0.7m), 7s period, E swell with cross-offshore winds.
- Most powerful swell: Thursday 10 Sep, 5AM (local time) - 7.5ft (2.3m), 7s period, SSW swell with 544 kJ wave energy.
- Next surfable swell (1★+): Sunday 6 Sep, 11AM (local time) - 2.5ft (0.7m), 7s 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 Sunday (Sep 06) at 11AM. The primary swell is predicted to be 0.7m and 7s period with a secondary swell of 0.3m and 6s. Another secondary swell of 0.1m and 9s 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 2.3m 7s and forecast to arrive on Thursday (Sep 10) at 5AM. 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 6s period and expected on Friday (Sep 11) at 5PM.
| Wave Type | Time (EDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 11AM (Sun 6th Sep) | 2.5ft (0.7m) 7s |
| Best Surf | 11AM (Sun 6th Sep) | 2.5ft (0.7m) 7s |
| Most Powerful | 5AM (Thu 10th Sep) | 7.5ft (2.3m) 7s |
Table - best surf conditions forecast for Road K over the next 16 days.
The Lowdown
Alright, Rusty here, talking in feet and knots now.
For the next 16 days at Road K, it’s gonna be a slow stretch. Water temp is 70°, right where it should be for this time of year.
We start on Friday, September 4th, with a tiny 1ft southeast swell, period around 8 seconds. The combined energy is weak at 43. Wind is cross-off from the WNW at 9 mph, so it’s clean. It’s surfable, but nothing to get excited about.
Saturday morning, September 5th, drops to 1.0ft with a north offshore wind at 9 mph. Clean, but no power. The afternoon gets messy with a cross-shore wind and a 1ft east swell that’s only 6 seconds – weak windswell.
Sunday, September 6th, sees a little bump to 2ft from the east, 7 seconds, with cross-off wind. Energy is still low at 55. Clean, but you’ll be scratching.
Then there’s a big gap. From Monday, September 7th, through Wednesday, September 9th, it’s almost flat. Waves are 0.7ft to 1.0ft, with poor conditions and messy winds. Wednesday afternoon gets a 5ft swell from the SSW, but with a 28 mph cross-onshore wind. That’s a choppy mess. The energy jumps to 142 (moderate), but it’s not for paddling.
Thursday, September 10th, is the only real standout. Morning has a 7ft SW swell, 7-second period, with a cross-off WNW wind at 22 mph. The energy is strong at 785. That’s a lot of wave, but the short period will make it bumpy. The swell direction (SW) isn’t ideal for Road K, which likes SSE. It’s big – 7ft – so that’s for experts only. Beginners, stay on the beach.
After that, it drops off. Friday, September 11th, back to 2ft to 2ft with offshore winds, but too small. The rest of the forecast into the second week (September 12th to 19th) is a mix of small, weak swells (2ft to 4ft), often with poor onshore or cross-shore winds. The energy is low, mostly under 100. There’s a bump on September 18th with a 4ft SSW swell, but the wind is cross-onshore and messy.
So, the bottom line: there’s a long gap of poor surf from the 7th to the 9th, and then a brief window on the 10th for the experienced crew. For everyone else, it’s a quiet couple of weeks.
Rusty, out.
Short Range ForecastMostly dry. Warm (max 28°C on Fri afternoon, min 18°C on Sat night). Wind will be generally light. | Days 5-7 Weather SummarySome drizzle, heaviest during Wed night. Warm (max 25°C on Mon afternoon, min 21°C on Mon night). Winds increasing (light winds from the WNW on Mon afternoon, strong winds from the SW by Wed night). | |||||||||||||||||||
Fri 4 | Saturday 5 | Sunday 6 | Monday 7 | Tuesday 8 | Wednesday 9 | Thursday 10 | ||||||||||||||
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 | E 6 | E 6 | E 7 | E 7 | E 10 | E 10 | E 10 | E 10 | E 9 | E 9 | SE 9 | SW 5 | SSW 5 | SSW 7 | SW 7 | SSW 7 | SSW 7 |
Wave Graph  | ||||||||||||||||||||
 kJ | 23 | 16 | 10 | 13 | 39 | 45 | 50 | 31 | 17 | 16 | 16 | 7 | 7 | 15 | 38 | 125 | 472 | 452 | 193 | 79 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | off | off | cross | cross | cross-off | cross | off | off | cross-off | cross-off | cross-off | cross | cross | cross-on | cross-on | cross | cross-off | cross-off | off |
High Tide | 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 | |||||||
 |  | | | | |  |  | | | | | | |  | |  | | | | |
 | — | — | 6:20 | — | — | 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 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | — | — | — |
Temp °C | 28 | 27 | 21 | 23 | 20 | 18 | 21 | 21 | 21 | 25 | 24 | 21 | 24 | 24 | 23 | 23 | 24 | 24 | 24 | 21 |
Feels °C | 26 | 26 | 19 | 23 | 18 | 15 | 20 | 19 | 17 | 22 | 20 | 19 | 21 | 20 | 22 | 18 | 19 | 21 | 18 | 16 |
Swell 1 Height (m) Direction Period (s) | ESE 7 | SE 8 | SSW 6 | SE 8 | SSW 6 | SSW 6 | E 7 | E 10 | E 10 | E 10 | E 10 | SW 4 | E 9 | SE 9 | SE 8 | SE 10 | ESE 9 | SSW 7 | SSW 7 | SSW 7 |
| kJ | 15 | 16 | 6 | 10 | 7 | 7 | 50 | 31 | 17 | 16 | 16 | 4 | 7 | 12 | 3 | 15 | 8 | 319 | 193 | 79 |
Swell 2 Height (m) Direction Period (s) | SE 8 | E 7 | E 6 | SSW 5 | E 8 | SE 9 | SSW 6 | SSW 6 | SSE 9 | SE 8 | SE 8 | E 9 | SE 9 | E 9 | SE 10 | E 9 | E 9 | SE 9 | SE 9 | SE 10 |
| kJ | 23 | 14 | 7 | 3 | 5 | 3 | 7 | 3 | 8 | 3 | 3 | 7 | 3 | 6 | 4 | 2 | 1 | 14 | 14 | 15 |
Swell 3 Height (m) Direction Period (s) | SW 4 | SSW 4 | SE 8 | E 8 | — | — | SE 9 | SSE 9 | S 6 | S 6 | S 5 | SE 9 | S 5 | — | E 9 | — | — | — | — | SE 10 |
| kJ | 5 | 2 | 10 | 1 | — | — | 3 | 8 | 3 | 3 | 1 | 3 | 1 | — | 2 | — | — | — | — | 15 |
Wind waves Height (m) Direction Period (s) | — | — | N 3 | E 6 | E 6 | E 7 | — | — | NW 2 | — | SW 4 | — | SSW 4 | SW 4 | SW 5 | SSW 5 | SSW 7 | SW 7 | — | N 4 |
| kJ | — | — | 1 | 13 | 39 | 45 | — | — | 1 | — | 4 | — | 2 | 15 | 38 | 125 | 472 | 452 | — | 9 |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 0 | 313 | 636 | 225 | 271 | 0 | 3 | 0 | 36 | 36 | 851 | 727 | 853 | 540 | 533 | 642 | 1166 | 117 | 32 | 67 |
Best forecast wave conditions in Long Island New York | ||||||||||||||||||||
Best forecast wave conditions in United States | ||||||||||||||||||||
Header Global | ||||||||||||||||||||
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
FREE! Surf-Forecast.com widget for your website
The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Road K surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.
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.
Nearest