Surf Forecasts:
Road K surf forecast from 18 Sep 2026:
- Best quality surf: Thursday 24 Sep, 11PM (local time) - 13ft (4.0m), 11s period, E swell with offshore winds.
- Most powerful swell: Thursday 24 Sep, 2PM (local time) - 13ft (4.0m), 12s period, ESE swell with 3,932 kJ wave energy.
- Next surfable swell (1★+): Thursday 24 Sep, 11PM (local time) - 13ft (4.0m), 11s period with E 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 (Sep 24) at 11PM. The primary swell is predicted to be 4.0m and 11s period with a secondary swell of 3.5m and 11s. 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 4.0m 12s and forecast to arrive on Thursday (Sep 24) at 2PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 2.1m 7s period and expected on Thursday (Sep 24) at 5PM.
| Wave Type | Time (EDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 11PM (Thu 24th Sep) | 13ft (4.0m) 11s |
| Best Surf | 11PM (Thu 24th Sep) | 13ft (4.0m) 11s |
| Most Powerful | 2PM (Thu 24th Sep) | 13ft (4.0m) 12s |
Table - best surf conditions forecast for Road K over the next 16 days.
Short Range ForecastModerate rain (total 10mm), heaviest on Sun night. Warm (max 27°C on Fri afternoon, min 15°C on Mon morning). Winds increasing (light winds from the NW on Fri afternoon, strong winds from the N by Sun night). | Days 5-7 Weather SummaryHeavy rain (total 34mm), heaviest during Tue night. Very mild (max 18°C on Mon afternoon, min 12°C on Tue night). Winds increasing (moderate winds from the NE on Mon afternoon, gales from the NE by Thu morning). | |||||||||||||||||||
Fri 18 | Saturday 19 | Sunday 20 | Monday 21 | Tuesday 22 | Wednesday 23 | Thursday 24 | ||||||||||||||
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 12 | SE 12 | E 6 | E 6 | ESE 7 | ESE 5 | SE 10 | ESE 5 | ESE 8 | ESE 7 | E 7 | E 7 | ESE 8 | E 8 | E 9 | E 9 | ESE 10 | ESE 11 | ESE 12 | E 10 |
Wave Graph  | ||||||||||||||||||||
 kJ | 22 | 21 | 92 | 123 | 97 | 20 | 17 | 36 | 128 | 163 | 240 | 585 | 754 | 816 | 1228 | 1798 | 2426 | 3866 | 3124 | 3065 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | cross-off | cross | cross-on | cross-on | on | on | cross-on | cross-off | cross | cross | cross | cross | cross | cross | cross | cross-off | cross-off | cross-off | off |
High Tide | 2:03AM0.75m | 2:31PM0.90m | 3:07AM0.74m | 3:33PM0.90m | 4:08AM0.77m | 4:30PM0.93m | 5:01AM0.84m | 5:20PM0.97m | 5:46AM0.91m | 6:05PM1.01m | 6:28AM0.98m | 6:46PM1.05m | ||||||||
Low Tide | 7:02PM0.30m | 7:03AM0.29m | 8:03PM0.32m | 8:04AM0.31m | 9:09PM0.31m | 9:07AM0.30m | 10:11PM0.28m | 10:10AM0.27m | 11:03PM0.23m | 11:08AM0.21m | 11:47PM0.16m | 11:59AM0.14m | 00:27AM0.10m | |||||||
 |  |  | | |  |  |  | | |  | | |  | | | |  | |  | |
 | — | — | 6:33 | — | — | 6:35 | — | — | 6:35 | — | — | 6:37 | — | — | 6:37 | — | — | 6:39 | — | — |
 | 6:53 | — | — | 6:52 | — | — | 6:51 | — | — | 6:49 | — | — | 6:47 | — | — | 6:45 | — | — | 6:44 | — |
mm | — | — | — | — | — | — | 3 | 7 | — | — | — | 4 | 4 | 13 | 1 | — | 6 | 6 | 2 | 3 |
Temp °C | 27 | 24 | 16 | 17 | 17 | 18 | 18 | 20 | 15 | 18 | 17 | 15 | 14 | 14 | 16 | 16 | 16 | 14 | 14 | 14 |
Feels °C | 24 | 20 | 11 | 14 | 13 | 15 | 15 | 20 | 9 | 13 | 12 | 8 | 4 | 5 | 7 | 6 | 6 | 3 | 3 | 7 |
Swell 1 Height (m) Direction Period (s) | SSW 4 | ESE 7 | SE 12 | ESE 12 | ESE 11 | SE 7 | SE 7 | SE 9 | E 8 | — | — | — | — | — | — | — | — | ESE 11 | ESE 12 | E 11 |
| kJ | 6 | 9 | 21 | 13 | 12 | 13 | 12 | 29 | 5 | — | — | — | — | — | — | — | — | 3435 | 3124 | 2401 |
Swell 2 Height (m) Direction Period (s) | ESE 7 | SE 12 | — | — | ESE 11 | SE 11 | SE 10 | SSE 9 | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | 16 | 21 | — | — | 12 | 18 | 17 | 8 | — | — | — | — | — | — | — | — | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | SE 12 | SE 9 | — | — | — | SE 8 | SE 9 | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | 22 | 12 | — | — | — | 3 | 3 | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | NE 4 | E 6 | E 6 | ESE 7 | ESE 5 | ESE 5 | ESE 5 | ESE 8 | ESE 7 | E 7 | E 7 | ESE 8 | E 8 | E 9 | E 9 | ESE 10 | ESE 11 | NE 7 | E 10 |
| kJ | — | 17 | 92 | 123 | 97 | 20 | 15 | 36 | 128 | 163 | 240 | 585 | 754 | 816 | 1228 | 1798 | 2426 | 3866 | 371 | 3065 |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 0 | 682 | 208 | 1175 | 1166 | 682 | 263 | 67 | 296 | 72 | 103 | 1166 | 1166 | 540 | 1166 | 1022 | 2341 | 775 | 777 | 203 |
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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