Surf Forecasts:
Road K surf forecast from 20 Aug 2026:
- Best quality surf: Thursday 20 Aug, 5AM (local time) - 1.5ft (0.5m), 9s period, SE swell with cross-offshore winds.
- Most powerful swell: Monday 24 Aug, 5AM (local time) - 3.5ft (1.0m), 6s period, S swell with 84 kJ wave energy.
- Next surfable swell (1★+): Thursday 20 Aug, 5AM (local time) - 1.5ft (0.5m), 9s 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 Thursday (Aug 20) at 5AM. The primary swell is predicted to be 0.5m and 9s period with a secondary swell of 0.3m and 6s. Another secondary swell of 0.3m and 5s 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 1.0m 6s and forecast to arrive on Monday (Aug 24) at 5AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.5m 4s period and expected on Thursday (Aug 20) at 11PM.
| Wave Type | Time (EDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 5AM (Thu 20th Aug) | 1.5ft (0.5m) 9s |
| Best Surf | 5AM (Thu 20th Aug) | 1.5ft (0.5m) 9s |
| Most Powerful | 5AM (Mon 24th Aug) | 3.5ft (1.0m) 6s |
Table - best surf conditions forecast for Road K over the next 16 days.
The Lowdown
G'day, I'm Rusty. Let's have a look at what's on the cards for the next couple of weeks.
Look, I'll be straight with you – the first week is a tough slog. There's a lot of poor surf conditions and tiny waves, so you'll be doing more waiting than riding. The biggest gap is from now until Thursday the 22nd of August, with nothing worth paddling out for. Things stay pretty average right through until the morning of Friday the 28th of August.
That Friday morning, the 28th of August, is the standout. Road K is a sandbar break and it's very consistent, so it fires up when the swell hits. We're looking at a clean 5ft swell from the SSE with a period of 7 seconds, and the wind is a light offshore from the NE. The wave energy is moderate at 244. It's a beginner-friendly spot, which is spot on for this size. Just keep in mind the crowds are often here, so expect some company. This is the best on offer, no question.
The rest of the period is a write-off. Saturday the 29th of August has a morning clean up with 3ft from the S and 175 energy, but it's weak and ordinary. Then from Sunday the 30th of August right through to the end of the window, it's all poor surf with messy onshore winds and tiny waves. Even the 4ft ESE swell on Friday the 4th of September is rated marginal, with a short 8-second period and cross-off wind, so it's nothing to get excited about.
In short, pencil in the morning of Friday the 28th of August at Road K for a fun session. After that, the forecast looks poor, but it won't stay this way forever – forecasts can change.
Rusty.
Short Range ForecastHeavy rain (total 58mm), heaviest during Sat morning. Warm (max 25°C on Wed night, min 19°C on Thu night). Winds increasing (light winds from the NW on Thu morning, fresh winds from the E by Sat morning). | Days 5-7 Weather SummaryModerate rain (total 11mm), heaviest on Sat night. Warm (max 24°C on Sun night, min 18°C on Sat night). Wind will be generally light. | ||||||||||||||||||
Thursday 20 | Friday 21 | Saturday 22 | Sunday 23 | Monday 24 | Tuesday 25 | ||||||||||||||
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 9 | SE 7 | SE 7 | ESE 8 | SE 8 | SE 8 | E 5 | ESE 8 | SSE 5 | SSE 5 | SSE 5 | SSE 6 | S 6 | S 6 | SSE 6 | S 6 | S 7 | SE 10 | SSW 5 |
Wave Graph  | |||||||||||||||||||
 kJ | 39 | 25 | 12 | 27 | 18 | 18 | 45 | 21 | 17 | 44 | 33 | 53 | 81 | 68 | 68 | 62 | 22 | 28 | 23 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | off | off | off | cross-off | cross-on | cross-on | cross-on | cross-off | cross-off | cross | cross-on | off | cross-off | cross-off | off | cross-off | cross | cross-off |
High Tide | 1:39AM0.80m | 2:13PM0.94m | 2:38AM0.76m | 3:12PM0.92m | 3:41AM0.74m | 4:11PM0.94m | 4:40AM0.76m | 5:04PM0.97m | 5:32AM0.80m | 5:52PM1.01m | 6:18AM0.86m | 6:36PM1.05m | |||||||
Low Tide | 6:53AM0.22m | 7:48PM0.31m | 7:44AM0.26m | 8:52PM0.33m | 8:39AM0.28m | 10:06PM0.32m | 9:39AM0.28m | 11:16PM0.29m | 10:39AM0.26m | 00:01AM0.24m | 11:35AM0.21m | 00:35AM0.18m | |||||||
 |  |  |  | | | |  |  |  |  | |  | | | | | |  | |
 | — | 6:03 | — | — | 6:05 | — | — | 6:05 | — | — | 6:07 | — | — | 6:07 | — | — | 6:09 | — | — |
 | 7:43 | — | 7:40 | — | — | 7:39 | — | — | 7:37 | — | — | 7:37 | — | — | 7:35 | — | — | 7:34 | — |
mm | — | — | — | 3 | — | — | 7 | 29 | 19 | 2 | 2 | 3 | 4 | — | — | — | — | — | — |
Temp °C | 25 | 24 | 25 | 21 | 21 | 22 | 22 | 21 | 23 | 20 | 20 | 22 | 24 | 22 | 24 | 24 | 20 | 22 | 22 |
Feels °C | 25 | 25 | 26 | 18 | 19 | 20 | 21 | 21 | 25 | 21 | 21 | 24 | 23 | 20 | 20 | 20 | 16 | 19 | 19 |
Swell 1 Height (m) Direction Period (s) | SE 9 | SE 7 | SE 7 | ESE 8 | SE 8 | SE 8 | SSW 6 | E 5 | ESE 8 | SSE 5 | SSE 5 | SSE 6 | S 6 | S 6 | SSE 6 | S 6 | S 7 | S 6 | SSW 5 |
| kJ | 39 | 25 | 11 | 27 | 18 | 18 | 3 | 16 | 12 | 44 | 33 | 53 | 81 | 68 | 68 | 62 | 22 | 22 | 23 |
Swell 2 Height (m) Direction Period (s) | S 6 | SE 9 | SE 9 | S 5 | E 7 | SSW 5 | SE 14 | ESE 8 | ENE 4 | ESE 8 | ESE 7 | SE 12 | SE 12 | SE 12 | SE 11 | SE 11 | SE 6 | SE 10 | SE 11 |
| kJ | 10 | 12 | 12 | 1 | 4 | 2 | 8 | 21 | 4 | 11 | 11 | 23 | 22 | 35 | 20 | 30 | 9 | 28 | 18 |
Swell 3 Height (m) Direction Period (s) | — | WSW 3 | S 5 | — | S 5 | S 5 | — | SE 5 | SE 13 | ESE 13 | ESE 12 | ESE 7 | ESE 8 | E 6 | E 6 | — | SE 11 | SE 5 | SE 6 |
| kJ | — | 1 | 2 | — | 2 | 1 | — | 5 | 7 | 16 | 15 | 5 | 7 | 3 | 3 | — | 18 | 7 | 1 |
Wind waves Height (m) Direction Period (s) | SSW 2 | — | — | — | — | E 3 | E 5 | SW 5 | SSE 5 | — | — | SSW 6 | — | — | — | NW 3 | — | SW 2 | — |
| kJ | 1 | — | — | — | — | 3 | 45 | 5 | 17 | — | — | 20 | — | — | — | 2 | — | 1 | — |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 78 | 49 | 263 | 244 | 718 | 677 | 263 | 173 | 0 | 26 | 221 | 67 | 0 | 36 | 17 | 0 | 17 | 263 | 0 |
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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