Surf Forecasts:
Road K surf forecast from 17 Jun 2026:
- Best quality surf: Tuesday 23 Jun, 2AM (local time) - 4.5ft (1.3m), 8s period, S swell with offshore winds.
- Most powerful swell: Monday 22 Jun, 11AM (local time) - 10ft (3.0m), 9s period, SSW swell with 1,397 kJ wave energy.
- Next surfable swell (1★+): Sunday 21 Jun, 11AM (local time) - 2ft (0.6m), 7s period with S 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 (Jun 21) at 11AM. The primary swell is predicted to be 0.6m and 7s period with a secondary swell of 0.1m and 12s. 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 3.0m 9s and forecast to arrive on Monday (Jun 22) at 11AM. 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 3s period and expected on Monday (Jun 22) at 5PM.
| Wave Type | Time (EDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 11AM (Sun 21st Jun) | 2ft (0.6m) 7s |
| Best Surf | 2AM (Tue 23rd Jun) | 4.5ft (1.3m) 8s |
| Most Powerful | 11AM (Mon 22nd Jun) | 10ft (3.0m) 9s |
Table - best surf conditions forecast for Road K over the next 16 days.
Updates in hr min s Forecast update imminent
Short Range ForecastSome drizzle, heaviest during Thu morning. Warm (max 25°C on Thu night, min 19°C on Tue night). Winds increasing (light winds from the S on Wed morning, strong winds from the S by Thu morning). | Days 5-7 Weather SummaryHeavy rain (total 33mm), heaviest during Mon morning. Warm (max 25°C on Fri night, min 17°C on Sat night). Winds increasing (light winds from the WNW on Sun morning, near gales from the SSW by Mon morning). | ||||||||||||||||||||
Wednesday 17 | Thursday 18 | Friday 19 | Saturday 20 | Sunday 21 | Monday 22 | Tue 23 | |||||||||||||||
Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | |
Swell Height Map |  |  |  |  |  |  |  |  | |||||||||||||
Wave Height (m) Direction Period (s) | S 7 | S 7 | S 7 | S 7 | S 7 | S 7 | S 7 | S 8 | S 8 | S 8 | S 7 | SSW 8 | S 7 | S 7 | S 7 | S 5 | SSW 9 | S 9 | S 8 | S 7 | S 7 |
Wave Graph  | |||||||||||||||||||||
 kJ | 36 | 34 | 32 | 134 | 364 | 360 | 272 | 191 | 270 | 145 | 88 | 99 | 64 | 34 | 23 | 15 | 1397 | 691 | 217 | 86 | 60 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | on | on | on | cross-on | cross-on | cross-off | cross-off | cross | cross-off | cross-off | cross-off | cross-off | cross-off | cross-on | on | cross | cross-off | off | glassy | cross-on |
High Tide | 9:30PM1.27m | 10:04AM1.01m | 10:24PM1.23m | 10:59AM1.01m | 11:17PM1.16m | 11:53AM1.00m | 00:10AM1.09m | 12:48PM0.98m | 1:05AM1.00m | 1:43PM0.97m | 2:01AM0.93m | 2:40PM0.97m | 2:58AM0.87m | 3:36PM0.97m | |||||||
Low Tide | 3:33AM-0.07m | 3:30PM-0.01m | 4:23AM-0.04m | 4:25PM0.04m | 5:15AM-0.00m | 5:21PM0.10m | 6:07AM0.04m | 6:23PM0.16m | 6:59AM0.09m | 7:28PM0.20m | 7:49AM0.13m | 8:37PM0.23m | 8:37AM0.16m | ||||||||
 | |  |  |  | |  | | |  | | | | | |  |  | | | | | |
 | — | 5:16 | — | — | 5:18 | — | — | 5:18 | — | — | 5:18 | — | — | 5:18 | — | — | 5:18 | — | — | 5:18 | — |
 | 8:22 | — | 8:22 | — | — | 8:23 | — | — | 8:23 | — | — | 8:23 | — | — | 8:24 | — | — | 8:24 | — | — | 8:24 |
mm | — | — | — | — | 1 | — | — | — | — | — | — | — | — | — | — | 4 | 29 | — | — | — | — |
Temp °C | 19 | 19 | 19 | 19 | 22 | 23 | 25 | 21 | 24 | 25 | 21 | 24 | 23 | 20 | 21 | 20 | 21 | 22 | 21 | 19 | 20 |
Feels °C | 14 | 19 | 16 | 16 | 16 | 19 | 20 | 17 | 19 | 20 | 15 | 18 | 17 | 17 | 17 | 16 | 14 | 16 | 15 | 19 | 18 |
Swell 1 Height (m) Direction Period (s) | S 7 | S 7 | S 7 | SE 15 | SE 15 | SE 14 | S 7 | S 8 | S 8 | S 8 | S 7 | SSW 8 | S 7 | S 7 | S 7 | S 5 | — | S 9 | S 8 | S 7 | S 7 |
| kJ | 36 | 34 | 32 | 9 | 8 | 8 | 272 | 191 | 270 | 145 | 88 | 99 | 64 | 34 | 23 | 15 | — | 691 | 217 | 86 | 60 |
Swell 2 Height (m) Direction Period (s) | E 8 | SSW 4 | SE 16 | — | E 8 | E 8 | SE 14 | SE 13 | ESE 6 | SE 13 | SE 13 | SE 13 | SE 12 | SE 12 | SE 12 | S 7 | — | — | E 11 | E 11 | — |
| kJ | 1 | 1 | 10 | — | 1 | 1 | 8 | 7 | 3 | 7 | 7 | 6 | 6 | 6 | 6 | 14 | — | — | 2 | 2 | — |
Swell 3 Height (m) Direction Period (s) | E 6 | SE 16 | E 6 | E 7 | — | — | E 7 | E 5 | SE 13 | E 6 | — | — | — | — | — | SE 8 | — | — | — | — | E 8 |
| kJ | 1 | 10 | 1 | 1 | — | — | 1 | 1 | 7 | 1 | — | — | — | — | — | 2 | — | — | — | — | 1 |
Wind waves Height (m) Direction Period (s) | SSW 4 | — | S 3 | S 7 | S 7 | S 7 | — | — | — | NW 2 | WNW 3 | — | WNW 4 | — | SSW 3 | — | SSW 9 | WNW 3 | WNW 3 | WNW 4 | SW 3 |
| kJ | 14 | — | 1 | 134 | 364 | 360 | — | — | — | 1 | 2 | — | 4 | — | 4 | — | 1397 | 6 | 8 | 4 | 2 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 61 | 636 | 2575 | 1151 | 1467 | 368 | 32 | 107 | 107 | 17 | 105 | 32 | 17 | 0 | 718 | 727 | 247 | 167 | 0 | 0 | 245 |
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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