Surf Forecasts:
Road K surf forecast from 2 Sep 2026:
- Best quality surf: Friday 4 Sep, 2AM (local time) - 1.5ft (0.5m), 8s period, SE swell with cross-offshore winds.
- Most powerful swell: Wednesday 2 Sep, 2PM (local time) - 2ft (0.6m), 11s period, SE swell with 90 kJ wave energy.
- Next surfable swell (1★+): Friday 4 Sep, 2AM (local time) - 1.5ft (0.5m), 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 (Sep 04) at 2AM. The primary swell is predicted to be 0.5m and 8s period with a secondary swell of 0.7m and 5s. Another secondary swell of 0.4m and 8s 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 0.6m 11s and forecast to arrive on Wednesday (Sep 02) at 2PM. 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 4s period and expected on Wednesday (Sep 09) at 8AM.
| Wave Type | Time (EDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 2AM (Fri 4th Sep) | 1.5ft (0.5m) 8s |
| Best Surf | 2AM (Fri 4th Sep) | 1.5ft (0.5m) 8s |
| Most Powerful | 2PM (Wed 2nd Sep) | 2ft (0.6m) 11s |
Table - best surf conditions forecast for Road K over the next 16 days.
The Lowdown
G’day, Rusty here. Let’s be straight with you – this is a tough stretch for Road K. The 16-day window ahead isn’t exactly lighting any fires, and for the first several days, you might as well leave the board at home. We’ve got a real quiet start with barely a ripple until we hit Saturday the 12th. That’s over a week of flat, junk conditions where nothing’s worth paddling out for.
Right now, on Wednesday the 2nd, we’re looking at tiny 2ft swell from the SE, coming in with a middling 11-second period, but the wind is a cross E breeze at 12 mph and the combined energy is only 148 – weak. It’s messy, poor surf, no score. Thursday the 3rd brings a bit more height (3ft) but it’s short-period junk at 5 seconds from the SSE, and the wind is cross from the SW at 12 mph. Still rubbish. Friday the 4th drops down to 1ft, glassy in the morning with a N wind at 3 mph, but there’s just no power behind it – energy is a measly 36. Saturday the 5th is clean with cross-off winds, but the swell is 2ft at best, and the wave comment says it’s “surfable waves but very ordinary conditions” – a 1 out of 10. That’s the best we get for the first week.
The real standout is Saturday the 12th – that’s the one to circle. Morning sees 6ft of E swell wrapping in with a 7-second period, light W wind at 6 mph making it clean, and the combined energy jumps to a solid 262. The guidance says “expect good surf conditions” and scores it a 2. That’s the pick of the whole run. Sunday the 13th morning is also promising with 5ft from the E, glassy conditions with a WNW breeze at 3 mph, energy at 360 – that’s moderate-strong energy and it’ll be smooth. After that, Monday the 14th drops off quick. The rest of the second week is back to tiny, onshore slop.
Keep in mind, Road K is a sandbar that’s very consistent, so it’s not like it never breaks, but this forecast is a real dud. That Saturday and Sunday morning window is your only real chance to get a few workable ones. Water temp is sitting around 71° F – about normal for this time of year – so you won’t need a thick suit. Crowds are likely “often” here, so if it does pulse up, expect company.
Rusty.
Short Range ForecastModerate rain (total 17mm), heaviest on Fri afternoon. Warm (max 27°C on Thu night, min 19°C on Wed morning). Winds increasing (calm on Fri morning, fresh winds from the NNW by Fri night). | Days 4-6 Weather SummarySome drizzle, heaviest during Sat night. Warm (max 23°C on Sun afternoon, min 18°C on Sat night). Winds decreasing (fresh winds from the NNW on Sat morning, calm by Mon afternoon). | ||||||||||||||||||||
Wednesday 2 | Thursday 3 | Friday 4 | Saturday 5 | Sunday 6 | Monday 7 | Tuesday 8 | |||||||||||||||
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 11 | SE 10 | SE 10 | SE 9 | SE 5 | SE 8 | SE 8 | SE 8 | SE 8 | SE 8 | E 7 | E 6 | E 8 | E 8 | E 10 | E 10 | E 9 | SW 4 | SW 5 | SSW 6 | SSW 7 |
Wave Graph  | |||||||||||||||||||||
 kJ | 96 | 79 | 57 | 54 | 32 | 35 | 23 | 17 | 18 | 10 | 39 | 48 | 32 | 19 | 28 | 17 | 16 | 20 | 51 | 80 | 64 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross-on | cross-on | cross | cross | cross-off | glassy | on | off | cross-off | cross-off | cross-off | cross-off | off | cross-off | off | cross-on | cross-off | cross-off | cross-on | cross |
High Tide | 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 | 5:12PM1.12m | 5:44AM0.98m | 6:07PM1.15m | ||||||||
Low Tide | 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 | 10:09AM0.16m | 11:24PM0.13m | 11:22AM0.12m | 00:22AM0.08m | ||||||||
 | |  |  | |  |  |  |  |  | | | | |  | | | | |  |  | |
 | 6:16 | — | — | 6:18 | — | — | 6:18 | — | — | 6:20 | — | — | 6:20 | — | — | 6:22 | — | — | 6:22 | — | — |
 | — | 7:21 | — | — | 7:19 | — | — | 7:17 | — | — | 7:15 | — | — | 7:14 | — | — | 7:13 | — | — | 7:10 | — |
mm | — | — | — | 3 | — | 2 | 1 | 9 | 2 | — | — | 1 | — | — | — | — | — | — | — | — | — |
Temp °C | 20 | 21 | 23 | 23 | 26 | 27 | 23 | 25 | 23 | 20 | 22 | 20 | 19 | 23 | 23 | 20 | 23 | 22 | 22 | 23 | 23 |
Feels °C | 18 | 20 | 24 | 24 | 27 | 29 | 24 | 25 | 24 | 16 | 19 | 17 | 17 | 20 | 21 | 17 | 21 | 17 | 19 | 20 | 21 |
Swell 1 Height (m) Direction Period (s) | SE 11 | SE 10 | SE 6 | SE 9 | SE 5 | SSE 5 | SE 8 | S 5 | S 6 | SSW 6 | SSW 6 | E 6 | E 8 | E 8 | SW 4 | E 10 | E 9 | E 10 | E 9 | SSW 6 | SSW 7 |
| kJ | 96 | 79 | 47 | 50 | 32 | 27 | 23 | 14 | 18 | 6 | 6 | 48 | 32 | 19 | 5 | 17 | 16 | 17 | 6 | 80 | 64 |
Swell 2 Height (m) Direction Period (s) | SW 4 | SW 4 | SE 10 | SE 9 | SE 9 | SE 8 | SW 5 | SE 8 | SE 8 | SE 8 | SSW 6 | SSW 6 | SSW 6 | SSW 6 | E 10 | SE 9 | SE 8 | SE 8 | SE 9 | E 9 | SE 9 |
| kJ | 1 | 1 | 57 | 50 | 27 | 25 | 6 | 17 | 17 | 10 | 6 | 14 | 7 | 6 | 28 | 3 | 3 | 3 | 3 | 6 | 3 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | SSE 5 | SE 8 | SE 5 | E 7 | ESE 7 | E 7 | — | ESE 9 | SE 8 | ESE 9 | SE 9 | — | S 5 | E 10 | — | SE 9 | E 8 |
| kJ | — | — | — | — | 9 | 35 | 7 | 8 | 9 | 8 | — | 7 | 3 | 8 | 3 | — | 1 | 8 | — | 3 | 6 |
Wind waves Height (m) Direction Period (s) | ESE 6 | ESE 6 | — | SSE 5 | SW 4 | — | — | — | NNW 3 | N 3 | E 7 | — | — | — | — | — | SSW 5 | SW 4 | SW 5 | — | NE 3 |
| kJ | 51 | 40 | — | 54 | 11 | — | — | — | 1 | 3 | 39 | — | — | — | — | — | 3 | 20 | 51 | — | 5 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 573 | 1019 | 187 | 59 | 32 | 0 | 36 | 67 | 36 | 718 | 0 | 0 | 238 | 208 | 173 | 852 | 243 | 191 | 142 | 136 | 529 |
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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