Surf Forecasts:
Road K surf forecast from 8 Aug 2026:
- Best quality surf: Sunday 9 Aug, 11PM (local time) - 3ft (0.9m), 6s period, SSW swell with offshore winds.
- Most powerful swell: Sunday 9 Aug, 5AM (local time) - 4.5ft (1.4m), 6s period, SSW swell with 160 kJ wave energy.
- Next surfable swell (1★+): Sunday 9 Aug, 11PM (local time) - 3ft (0.9m), 6s 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 09) at 11PM. The primary swell is predicted to be 0.9m and 6s period with a secondary swell of 0.1m and 7s. 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 Sunday (Aug 09) 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 0.6m 4s period and expected on Friday (Aug 14) at 2PM.
| Wave Type | Time (EDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 11PM (Sun 9th Aug) | 3ft (0.9m) 6s |
| Best Surf | 11PM (Sun 9th Aug) | 3ft (0.9m) 6s |
| Most Powerful | 5AM (Sun 9th Aug) | 4.5ft (1.4m) 6s |
Table - best surf conditions forecast for Road K over the next 16 days.
The Lowdown
Alright, grab a coffee, I’ve had a proper look at the charts for the next couple of weeks, and I gotta be straight with you – it’s a pretty grim stretch for most of it. We’re looking at Road K, and for the first week and a half, it’s a bust. There’s a long gap from now right through to the morning of Saturday the 15th of August where the conditions are just too poor to bother. The swell is tiny, the wind is wrong, and it’s all just a messy, lumpy cross-shore or cross-onshore affair. That Saturday morning the 15th finally sees a weak pulse of 3ft S swell at 8 seconds, with a light WNW wind, so it’s clean, but the energy is still weak (103), and it’s just "surfable" – not worth getting excited about. Sunday morning the 16th is similar with a bit of offshore wind, but again, tiny.
The real standout, the only one that’s even worth a mention, is Thursday the 20th of August. That morning, we finally get a proper push. The swell jumps to 5ft from the SSW with a moderate 8 second period, and the wind swings to a clean offshore NNW breeze. The combined energy is strong (372), and the file says "expect good surf conditions." That’s the pick of the whole 16 days, no question. It’s a bit punchy for a beginner, but for anyone who can handle it, that Thursday morning will be the cleanest, funnest waves we’ll see. The afternoon stays clean with offshore wind too, though the swell drops a bit to 3ft (229 energy). If you can only make one session, that’s it.
Other than that, the rest of the period is a write-off. The wind is either onshore, cross-shore, or just too strong, and the swell never really gets a run at it. There’s a bit of glass on Monday afternoon the 17th, but it’s only 1ft of SE swell with a super long period of 10 seconds – that’s going to be weak and straight. Not worth it.
So, to sum it up: ignore the next week and a half. You’re waiting for Thursday the 20th of August. Set your alarm for that morning, paddle out at Road K, and you’ll get the cleanest, most energetic waves of the whole outlook. The rest? Forget it.
Rusty.
Short Range ForecastMostly dry. Warm (max 29°C on Sun afternoon, min 22°C on Mon morning). Winds decreasing (fresh winds from the SW on Sat afternoon, calm by Mon morning). | Days 4-6 Weather SummaryModerate rain (total 15mm), heaviest on Thu night. Warm (max 27°C on Tue afternoon, min 21°C on Wed night). Winds increasing (calm on Tue afternoon, strong winds from the NNW by Thu night). | ||||||||||||||||||||
Saturday 8 | Sunday 9 | Monday 10 | Tuesday 11 | Wednesday 12 | Thursday 13 | Friday 14 | |||||||||||||||
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) | SSW 6 | SSW 5 | SSW 6 | S 7 | SSW 7 | SSW 6 | S 6 | S 5 | SSW 6 | S 6 | SSW 6 | S 6 | S 6 | SSW 5 | SSW 6 | SSW 6 | SSW 6 | SSW 5 | SSW 6 | SSW 6 | S 8 |
Wave Graph  | |||||||||||||||||||||
 kJ | 35 | 48 | 121 | 107 | 102 | 50 | 23 | 20 | 34 | 32 | 25 | 15 | 23 | 23 | 24 | 25 | 26 | 78 | 74 | 46 | 89 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross-on | cross | cross | cross-on | off | glassy | cross-on | cross-off | off | cross-on | cross-off | cross-off | cross-off | cross-on | on | cross-on | off | cross-off | cross-off | off |
High Tide | 4:25PM1.11m | 4:56AM0.87m | 5:26PM1.16m | 5:55AM0.93m | 6:21PM1.20m | 6:51AM0.99m | 7:14PM1.23m | 7:43AM1.05m | 8:05PM1.24m | 8:32AM1.10m | 8:53PM1.22m | 9:20AM1.12m | 9:40PM1.18m | ||||||||
Low Tide | 9:07AM0.09m | 10:16PM0.16m | 10:14AM0.09m | 11:29PM0.11m | 11:22AM0.07m | 00:34AM0.06m | 12:27PM0.04m | 1:27AM0.01m | 1:25PM0.01m | 2:12AM-0.02m | 2:16PM-0.01m | 2:53AM-0.03m | 3:03PM0.00m | 3:31AM-0.02m | |||||||
 | |  |  | | | | | | | |  | | |  | | | | | | | |
 | 5:52 | — | — | 5:52 | — | — | 5:54 | — | — | 5:54 | — | — | 5:56 | — | — | 5:56 | — | — | 5:58 | — | — |
 | — | 7:58 | — | — | 7:55 | — | — | 7:54 | — | — | 7:53 | — | — | 7:52 | — | — | 7:51 | — | — | 7:50 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | 2 | — | — | — | — | — | 13 | — | — | — |
Temp °C | 26 | 27 | 28 | 26 | 29 | 29 | 24 | 27 | 27 | 26 | 27 | 26 | 25 | 26 | 24 | 23 | 26 | 26 | 21 | 25 | 24 |
Feels °C | 27 | 26 | 29 | 26 | 28 | 29 | 24 | 25 | 27 | 27 | 29 | 27 | 25 | 25 | 25 | 23 | 26 | 26 | 18 | 22 | 20 |
Swell 1 Height (m) Direction Period (s) | SE 8 | SE 8 | SE 8 | S 7 | ESE 7 | SSW 6 | S 6 | SE 10 | SE 10 | S 6 | SE 9 | S 6 | S 6 | SSW 5 | SSW 6 | SSW 6 | SSW 6 | SE 8 | SSW 6 | SSW 6 | S 8 |
| kJ | 35 | 33 | 9 | 107 | 5 | 50 | 23 | 4 | 4 | 32 | 3 | 15 | 23 | 23 | 24 | 25 | 26 | 11 | 74 | 46 | 89 |
Swell 2 Height (m) Direction Period (s) | E 8 | E 9 | E 9 | E 8 | E 11 | SE 7 | SE 10 | E 8 | E 8 | SE 9 | E 8 | SE 9 | ESE 4 | SE 8 | ESE 8 | ENE 4 | E 4 | SE 13 | ESE 10 | ESE 9 | — |
| kJ | 1 | 1 | 2 | 1 | 2 | 2 | 4 | 1 | 1 | 3 | 1 | 3 | 4 | 3 | 7 | 5 | 1 | 7 | 9 | 9 | — |
Swell 3 Height (m) Direction Period (s) | — | E 8 | — | E 11 | E 11 | SE 10 | E 8 | — | E 8 | E 8 | — | E 12 | SE 8 | SE 11 | SE 14 | SE 8 | SE 8 | — | SE 13 | SE 13 | E 12 |
| kJ | — | 1 | — | 2 | 2 | 4 | 1 | — | 1 | 1 | — | 3 | 3 | 5 | 8 | 3 | 3 | — | 7 | 7 | 3 |
Wind waves Height (m) Direction Period (s) | SSW 6 | SSW 5 | SSW 6 | — | SSW 7 | — | — | S 5 | SSW 6 | — | SSW 6 | — | — | E 4 | E 4 | — | — | SSW 5 | — | NW 3 | NNW 3 |
| kJ | 33 | 48 | 121 | — | 102 | — | — | 20 | 34 | — | 25 | — | — | 2 | 7 | — | — | 78 | — | 3 | 1 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 136 | 134 | 3 | 61 | 134 | 0 | 861 | 136 | 0 | 36 | 2554 | 833 | 833 | 148 | 167 | 636 | 2538 | 81 | 3 | 105 | 0 |
Best forecast wave conditions in Long Island New York | |||||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||||
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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.
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