Surf Forecasts:
Road K surf forecast from 27 Aug 2026:
- Best quality surf: Friday 28 Aug, 8PM (local time) - 2ft (0.6m), 8s period, SE swell with cross-offshore winds.
- Most powerful swell: Thursday 3 Sep, 2AM (local time) - 8ft (2.5m), 7s period, ESE swell with 645 kJ wave energy.
- Next surfable swell (1★+): Friday 28 Aug, 8PM (local time) - 2ft (0.6m), 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 (Aug 28) at 8PM. The primary swell is predicted to be 0.6m and 8s period with a secondary swell of 0.7m and 6s. 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 2.5m 7s and forecast to arrive on Thursday (Sep 03) at 2AM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.9m 4s period and expected on Tuesday (Sep 01) at 2PM.
| Wave Type | Time (EDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 8PM (Fri 28th Aug) | 2ft (0.6m) 8s |
| Best Surf | 8PM (Fri 28th Aug) | 2ft (0.6m) 8s |
| Most Powerful | 2AM (Thu 3rd Sep) | 8ft (2.5m) 7s |
Table - best surf conditions forecast for Road K over the next 16 days.
The Lowdown
Alright, let’s get into it. I’m looking at a tough stretch for Road K over the next couple of weeks. Honestly, there’s not much to get excited about. The first few days are a write-off, with poor surf conditions and choppy, cross-onshore winds. The swell energy is weak, sitting at around 84. We’re looking at a tiny 2 ft swell from the southeast with a short period of 9 seconds, so nothing doing there.
The weather clears up a bit on Saturday, August 29, and for a brief moment, things get interesting. The morning sees a small 2 ft swell from the southeast, but the wind swings to a light cross-offshore from the north-northeast. The wave energy is only 77, but the conditions turn clean. By Saturday afternoon, the wind drops to glassy, calm conditions, with the swell shifting slightly to the east-southeast. The swell is still tiny at 2 ft, and the energy dips to 57, but it’s the cleanest, most inviting window in the whole forecast. Not a standout by any stretch, but for a beginner-friendly sandbar like this, it’s the best you’ll get.
Then it’s back to poor conditions for a long stretch. Sunday through Tuesday stay mostly choppy, light, and weak. The swell energy drops into the 20s and 30s. By Wednesday, September 2, the swell picks up to 4 ft from the east, but the wind howls at 25 mph, cross-onshore, making it messy and unappealing.
Thursday, September 3, brings the biggest swell of the period: 8 ft from the east with a period of 8 seconds. The energy jumps to 939, which is a big jump. The morning is clean with a cross-offshore wind from the northeast. That’s a powerful wave, but it’s big for Road K – definitely for experts only. The afternoon stays big but gets choppy.
Friday, September 4, still has some size – 8 ft from the east-northeast with a period of 9 seconds, energy at 1239. The morning stays clean, but by the afternoon the wind turns cross-onshore and the quality drops. Still, that Thursday and Friday morning window is the most powerful surf in the whole 16 days, but it’s raw and heavy.
After that, the swell fades fast. Saturday and Sunday drop to 3 ft and 2 ft, and the wind stays onshore or cross. The energy falls back to under 200. The second week of the forecast is a barren run – tiny swell, poor wind, and consistent cross-onshore junk. There’s a short-lived window on Tuesday, September 8, with a clean 4 ft from the southeast and an offshore wind from the northwest, but the period is only 5 seconds, so it’s weak and won’t hold shape.
All in all, the best options are the tiny, clean windows on Saturday August 29 – glassy and calm, perfect for beginners or a fun longboard – and the big, powerful clean windows on Thursday September 3 and Friday September 4 mornings for the experienced crew. The rest is mostly flat or blown out.
The water temp is about average for the time of year, with no anomaly to speak of, so a spring suit should be fine.
- Rusty
Short Range ForecastLight rain (total 3mm), mostly falling on Thu night. Warm (max 25°C on Fri afternoon, min 19°C on Sat morning). Winds decreasing (fresh winds from the SSW on Thu afternoon, calm by Sat afternoon). | Days 5-7 Weather SummaryHeavy rain (total 24mm), heaviest during Tue morning. Warm (max 24°C on Sun morning, min 18°C on Tue afternoon). Winds increasing (calm on Mon night, fresh winds from the E by Tue afternoon). | ||||||||||||||||||
Thursday 27 | Friday 28 | Saturday 29 | Sunday 30 | Monday 31 | Tuesday 1 | ||||||||||||||
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 9 | SE 9 | SE 9 | SE 8 | SE 8 | SE 8 | SE 8 | ESE 8 | SE 8 | SE 8 | SE 8 | SSW 5 | SE 8 | SSW 5 | SW 4 | SE 7 | ENE 5 | E 6 |
Wave Graph | |||||||||||||||||||
72 | 75 | 77 | 75 | 70 | 69 | 51 | 51 | 41 | 33 | 43 | 25 | 26 | 22 | 17 | 21 | 11 | 57 | 88 | |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross-on | cross-on | cross | cross-on | off | cross-off | glassy | cross | cross | cross-on | cross | cross | glassy | cross-on | cross-on | cross | cross-on |
High Tide | 7:40AM0.97m | 7:58PM1.10m | 8:20AM1.02m | 8:38PM1.10m | 9:00AM1.07m | 9:18PM1.09m | 9:41AM1.10m | 9:59PM1.07m | 10:23AM1.12m | 10:42PM1.02m | 11:08AM1.12m | 11:28PM0.97m | |||||||
Low Tide | 1:08AM0.13m | 1:09PM0.11m | 1:42AM0.08m | 1:51PM0.06m | 2:17AM0.03m | 2:33PM0.03m | 2:54AM0.00m | 3:15PM0.02m | 3:32AM-0.01m | 3:59PM0.02m | 4:13AM-0.00m | 4:46PM0.05m | 4:58AM0.02m | ||||||
— | 6:11 | — | — | 6:11 | — | — | 6:13 | — | — | 6:13 | — | — | 6:15 | — | — | 6:16 | — | — | |
7:31 | — | 7:30 | — | — | 7:29 | — | — | 7:27 | — | — | 7:25 | — | — | 7:23 | — | — | 7:22 | — | |
mm | — | — | — | 1 | 2 | — | — | — | — | — | — | — | 1 | 1 | — | 2 | 14 | 6 | — |
Temp °C | 24 | 24 | 24 | 23 | 24 | 25 | 25 | 20 | 22 | 22 | 24 | 24 | 24 | 21 | 22 | 21 | 20 | 19 | 20 |
Feels °C | 23 | 22 | 22 | 22 | 25 | 26 | 26 | 19 | 22 | 21 | 22 | 21 | 23 | 22 | 24 | 24 | 19 | 15 | 16 |
Swell 1 Height (m) Direction Period (s) | SE 8 | SE 9 | SE 9 | SE 9 | SE 8 | SE 8 | S 6 | SE 8 | ESE 8 | SE 8 | SE 8 | SE 8 | SE 8 | S 5 | SE 7 | SE 6 | SE 7 | SE 6 | SE 10 |
72 | 75 | 77 | 75 | 70 | 69 | 24 | 51 | 41 | 33 | 43 | 25 | 17 | 11 | 17 | 15 | 11 | 10 | 23 | |
Swell 2 Height (m) Direction Period (s) | S 6 | — | — | — | E 10 | E 10 | SE 8 | S 6 | S 6 | SSW 6 | — | — | — | SE 8 | — | — | SSW 4 | SSW 5 | SE 12 |
6 | — | — | — | 2 | 2 | 51 | 26 | 16 | 6 | — | — | — | 22 | — | — | 4 | 2 | 23 | |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | E 10 | — | — | NE 4 | S 5 | — | — | — | — | — | SE 14 | SE 13 | S 6 |
— | — | — | — | — | — | 2 | — | — | 1 | 2 | — | — | — | — | — | 8 | 7 | 2 | |
Wind waves Height (m) Direction Period (s) | SSW 6 | S 4 | S 4 | S 6 | S 6 | S 6 | — | NNE 3 | — | — | SSW 6 | SSW 4 | SSW 5 | — | SSW 5 | SW 4 | NE 3 | ENE 5 | E 6 |
11 | 9 | 31 | 59 | 41 | 32 | — | 1 | — | — | 12 | 16 | 26 | — | 17 | 21 | 4 | 57 | 88 | |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 61 | 221 | 1166 | 117 | 3 | 131 | 0 | 0 | 0 | 36 | 36 | 2710 | 313 | 36 | 861 | 268 | 636 | 253 | 253 |
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.











