Surf Forecasts:
Road K surf forecast from 30 Aug 2026:
- Best quality surf: Sunday 30 Aug, 11PM (local time) - 3ft (0.9m), 5s period, SSW swell with offshore winds.
- Most powerful swell: Wednesday 2 Sep, 8AM (local time) - 4.5ft (1.4m), 6s period, ESE swell with 137 kJ wave energy.
- Next surfable swell (1★+): Sunday 30 Aug, 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 Sunday (Aug 30) at 11PM. The primary swell is predicted to be 0.9m and 5s period with a secondary swell of 0.4m and 8s. 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 6s and forecast to arrive on Wednesday (Sep 02) at 8AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.7m 5s period and expected on Sunday (Aug 30) at 11PM.
| Wave Type | Time (EDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 11PM (Sun 30th Aug) | 3ft (0.9m) 5s |
| Best Surf | 11PM (Sun 30th Aug) | 3ft (0.9m) 5s |
| Most Powerful | 8AM (Wed 2nd Sep) | 4.5ft (1.4m) 6s |
Table - best surf conditions forecast for Road K over the next 16 days.
The Lowdown
Alright, let’s have a look at what’s on offer for Road K over the next couple of weeks.
Honestly, it’s pretty flat out there for a long stretch. The water temperature is sitting at 71°F, which is about average for this time of year, so you won’t need a thick suit.
The first recommendation doesn’t come until Wednesday the 2nd of September, and even then it’s only marginal. Wednesday morning sees a bit of a pulse with 4ft swell from the ESE, period is a short 6 seconds, so it’s pretty weak and disorganised. The combined energy is 205 — that’s moderate in the numbers but the swell is short and messy. Wind is light onshore, which won’t help shape. Honestly, it’s more of a look-and-see, not something to get excited about.
Then we’ve got a real gap. From Wednesday afternoon through to Thursday the 3rd, things are poor. Friday the 4th of September afternoon shows a tiny improvement: 3ft from the south, period still only 7 seconds, energy 105, and clean conditions with cross-off wind. It’s surfable but very ordinary. Again, nothing to write home about.
Saturday the 5th of September morning has glassy 2ft waves from the south, but the period is only 6 seconds, so it’s small and weak. Clean conditions, but you’ll be struggling to get a decent ride.
The best window in the entire forecast is likely Wednesday the 9th of September morning. We’ve got 5ft from the east, period 8 seconds, and the combined energy hits 526 — that’s strong energy for this spot. Wind is light onshore, so it’s not perfect, but compared to everything else, this is the standout. That said, it’s still only rated as marginal, and the period is short, so expect a bit of a bumpy, crumbly wave. It’s the best of a bad bunch.
After that, it trails off again into tiny, weak waves with poor conditions for the rest of the second week. A few mornings like Friday the 11th of September offer glassy 2ft surf, but it’s small and period is only 5 seconds — barely rideable.
Overall, there’s no real firing session here. The best bet is Wednesday the 9th of September morning, but keep your expectations low. It’s a quiet run for Road K, and this kind of flat spell isn’t unusual for the area.
Rusty
Short Range ForecastLight rain (total 6mm), mostly falling on Wed morning. Warm (max 25°C on Sun night, min 20°C on Mon morning). Winds increasing (calm on Mon night, fresh winds from the ESE by Tue night). | Days 5-7 Weather SummaryHeavy rain (total 40mm), heaviest during Wed night. Warm (max 26°C on Thu afternoon, min 18°C on Fri night). Winds increasing (light winds from the S on Wed night, fresh winds from the N by Sat morning). | |||||||||||||||||||
Sun 30 | Monday 31 | Tuesday 1 | Wednesday 2 | Thursday 3 | Friday 4 | Saturday 5 | ||||||||||||||
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 | SSW 5 | SE 8 | SE 8 | SE 7 | SE 7 | SE 8 | SSE 12 | ESE 6 | SE 6 | SE 6 | ESE 6 | ESE 6 | ESE 7 | S 7 | SSW 7 | S 7 | SSW 6 | SSW 6 | ESE 9 |
Wave Graph  | ||||||||||||||||||||
 kJ | 18 | 28 | 17 | 23 | 19 | 12 | 17 | 98 | 127 | 109 | 102 | 65 | 49 | 35 | 62 | 69 | 34 | 13 | 7 | 7 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | off | cross | on | on | cross-on | cross-on | cross-on | on | on | cross-on | cross | cross-off | cross-off | off | off | off | cross-off | cross-off | cross-off |
High Tide | 9:59PM1.07m | 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 | |||||||
Low Tide | 3:15PM0.02m | 3:32AM-0.01m | 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 | |||||||
 |  |  |  |  | | |  |  | | |  |  |  | | | | | | | |
 | — | — | 6:15 | — | — | 6:16 | — | — | 6:16 | — | — | 6:18 | — | — | 6:18 | — | — | 6:20 | — | — |
 | 7:25 | — | — | 7:23 | — | — | 7:22 | — | — | 7:21 | — | — | 7:19 | — | — | 7:17 | — | — | 7:15 | — |
mm | — | 2 | — | — | 2 | — | — | — | 2 | 4 | 33 | 1 | 2 | — | — | — | — | — | — | 2 |
Temp °C | 23 | 25 | 21 | 22 | 22 | 21 | 22 | 21 | 21 | 22 | 23 | 24 | 26 | 25 | 22 | 24 | 23 | 19 | 21 | 19 |
Feels °C | 20 | 24 | 22 | 22 | 22 | 23 | 23 | 19 | 18 | 21 | 23 | 24 | 27 | 26 | 18 | 20 | 19 | 15 | 18 | 16 |
Swell 1 Height (m) Direction Period (s) | SE 8 | SSW 5 | S 5 | SSW 5 | SE 7 | SE 7 | SE 8 | SSE 12 | SE 11 | SE 10 | SE 6 | ESE 6 | ESE 6 | SSW 6 | S 7 | SSW 7 | S 7 | SSW 6 | SSW 6 | ESE 9 |
| kJ | 18 | 28 | 12 | 7 | 19 | 12 | 17 | 98 | 96 | 79 | 102 | 65 | 49 | 34 | 62 | 69 | 34 | 13 | 7 | 7 |
Swell 2 Height (m) Direction Period (s) | — | SE 8 | SE 8 | SE 8 | SSW 4 | SE 8 | SE 13 | E 5 | SSW 4 | SW 4 | SE 10 | SE 9 | SE 9 | ESE 7 | ESE 8 | ESE 8 | SE 8 | ESE 8 | NE 5 | ENE 5 |
| kJ | — | 17 | 17 | 23 | 4 | 3 | 7 | 19 | 2 | 1 | 57 | 50 | 27 | 35 | 43 | 26 | 16 | 6 | 3 | 3 |
Swell 3 Height (m) Direction Period (s) | E 9 | — | — | — | — | S 4 | SE 10 | SSW 4 | — | — | — | — | — | SE 8 | NE 5 | S 8 | E 7 | S 7 | ESE 8 | E 8 |
| kJ | 2 | — | — | — | — | 1 | 4 | 3 | — | — | — | — | — | 18 | 1 | 1 | 1 | 1 | 6 | 5 |
Wind waves Height (m) Direction Period (s) | SSW 4 | — | — | — | SSW 2 | — | — | E 5 | ESE 6 | SE 6 | — | SSW 5 | SSW 4 | NNW 2 | NNW 3 | NW 2 | NNW 3 | NNE 3 | — | — |
| kJ | 16 | — | — | — | 1 | — | — | 34 | 127 | 109 | — | 9 | 16 | 1 | 3 | 1 | 6 | 7 | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 1761 | 0 | 854 | 727 | 636 | 636 | 1751 | 336 | 405 | 1751 | 167 | 59 | 32 | 3 | 14 | 0 | 718 | 1151 | 2849 | 2341 |
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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