Surf Forecasts:
Road K surf forecast from 5 Aug 2026:
- Best quality surf: Wednesday 5 Aug, 5AM (local time) - 2.5ft (0.7m), 7s period, S swell with glassy winds.
- Most powerful swell: Monday 10 Aug, 8PM (local time) - 5ft (1.5m), 6s period, SSW swell with 159 kJ wave energy.
- Next surfable swell (1★+): Wednesday 5 Aug, 5AM (local time) - 2.5ft (0.7m), 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 Wednesday (Aug 05) at 5AM. The primary swell is predicted to be 0.7m and 7s period with a secondary swell of 0.6m and 6s. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Road K in the next 16 days are 1.5m 6s and forecast to arrive on Monday (Aug 10) at 8PM. Winds are predicted to be cross-shore at the time the swell arrives.
| Wave Type | Time (EDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 5AM (Wed 5th Aug) | 2.5ft (0.7m) 7s |
| Best Surf | 5AM (Wed 5th Aug) | 2.5ft (0.7m) 7s |
| Most Powerful | 8PM (Mon 10th Aug) | 5ft (1.5m) 6s |
Table - best surf conditions forecast for Road K over the next 16 days.
The Lowdown
Alright, surfers, Rusty here. Let's have a look at what's on the cards for the next couple of weeks.
Right off the bat, I gotta be straight with you – the first week and a half is looking pretty grim. We’re looking at a real dry spell for Road K. The swell is tiny, the wind is mostly junk, and the scores are just sad. You’ll be fighting cross-onshore chop on tiny, weak waves for days. If you’re absolutely desperate, the morning of Sunday the 9th might give you a tiny, clean 3ft wave from the S with a light offshore, but it’s barely worth the paddle. The combined energy is a measly 85 (weak), so don't expect much push.
Then we hit a proper gap. From Monday the 12th through to Monday the 18th, the surf is just flat, messy, or both. You’ll get a few moments of clean conditions – like the morning of the 14th with a glassy offshore, but the wave height is only 2ft and the energy is a paltry 44 (weak). It’s just not happening. A real test of patience, this one.
But hold on. The whole forecast changes on Tuesday the 18th of August. That’s the standout. The morning is looking like a proper reward. We’ve got a 4ft swell from the ESE, and the period bumps up to 8 seconds, which is a touch more organised. The real kicker? The wind is from the S at just 3 mph – that’s glassy. The combined energy climbs to 232 (moderate), which is the best we’ve seen by a long shot, and the score reflects that. This is the one. Get out there early, because it’ll be clean, fun, and the best chance we’ve got. After that, the wind swings onshore again by the afternoon, so don’t sleep on it.
The following days drop back to ordinary, small, and choppy, so that Tuesday morning is your window.
Rusty, signing off.
Short Range ForecastMostly dry. Warm (max 29°C on Fri afternoon, min 23°C on Tue night). Wind will be generally light. | Days 5-7 Weather SummaryModerate rain (total 11mm), heaviest on Fri night. Warm (max 29°C on Sun afternoon, min 22°C on Fri night). Winds decreasing (strong winds from the NW on Fri night, light winds from the SSW by Sat night). | ||||||||||||||||||
Wednesday 5 | Thursday 6 | Friday 7 | Saturday 8 | Sunday 9 | Monday 10 | ||||||||||||||
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) | S 7 | S 7 | SE 7 | SE 6 | SSW 6 | S 6 | SSW 6 | SSW 6 | SSW 6 | SSW 6 | SSW 6 | SSW 6 | SSW 6 | S 6 | SSW 6 | SSW 6 | SSW 6 | SSW 6 | S 6 |
Wave Graph  | |||||||||||||||||||
 kJ | 48 | 34 | 36 | 25 | 39 | 71 | 137 | 58 | 62 | 123 | 68 | 64 | 136 | 84 | 110 | 155 | 85 | 108 | 81 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | glassy | cross-on | cross-on | cross-on | cross-on | cross-on | cross | cross | cross-on | cross-off | cross | cross-on | cross-off | cross-off | cross-on | cross | cross | cross-on | cross |
High Tide | 00:40AM0.91m | 1:17PM1.03m | 1:36AM0.86m | 2:16PM1.04m | 2:42AM0.83m | 3:21PM1.06m | 3:50AM0.83m | 4:25PM1.11m | 4:56AM0.87m | 5:26PM1.16m | 5:55AM0.93m | 6:21PM1.20m | |||||||
Low Tide | 6:14AM0.04m | 6:55PM0.15m | 7:07AM0.06m | 7:57PM0.17m | 8:05AM0.09m | 9:04PM0.17m | 9:07AM0.09m | 10:16PM0.16m | 10:14AM0.09m | 11:29PM0.11m | 11:22AM0.07m | 00:34AM0.06m | |||||||
 | | |  | | | | | |  |  |  |  | | | |  | | | |
 | — | 5:48 | — | — | 5:50 | — | — | 5:50 | — | — | 5:52 | — | — | 5:52 | — | — | 5:54 | — | — |
 | 8:01 | — | 8:00 | — | — | 8:00 | — | — | 7:59 | — | — | 7:58 | — | — | 7:55 | — | — | 7:54 | — |
mm | — | — | — | — | — | — | — | — | — | 6 | 1 | — | 3 | — | — | — | — | 1 | 3 |
Temp °C | 24 | 24 | 25 | 25 | 26 | 26 | 26 | 27 | 29 | 23 | 24 | 25 | 25 | 26 | 29 | 29 | 28 | 29 | 29 |
Feels °C | 22 | 22 | 23 | 26 | 27 | 26 | 27 | 29 | 29 | 25 | 24 | 25 | 28 | 27 | 28 | 29 | 28 | 28 | 28 |
Swell 1 Height (m) Direction Period (s) | S 7 | S 7 | SE 7 | SE 6 | SE 6 | SE 8 | SE 7 | SSW 6 | SE 8 | SSW 6 | SSW 6 | SE 8 | SSW 6 | S 6 | SE 7 | SE 10 | SE 10 | SE 10 | S 6 |
| kJ | 48 | 34 | 36 | 25 | 19 | 9 | 8 | 58 | 15 | 123 | 50 | 29 | 95 | 84 | 9 | 4 | 4 | 4 | 81 |
Swell 2 Height (m) Direction Period (s) | SE 7 | SE 7 | S 6 | E 10 | E 10 | E 10 | E 11 | SE 8 | E 9 | SE 8 | SE 8 | E 9 | SE 8 | E 8 | E 8 | E 8 | E 8 | E 8 | SE 10 |
| kJ | 28 | 28 | 21 | 2 | 2 | 2 | 2 | 9 | 2 | 24 | 31 | 2 | 9 | 1 | 1 | 1 | 1 | 1 | 4 |
Swell 3 Height (m) Direction Period (s) | E 12 | E 10 | E 10 | — | — | — | — | E 10 | — | E 9 | E 9 | E 9 | E 9 | — | E 11 | — | — | — | E 8 |
| kJ | 3 | 2 | 2 | — | — | — | — | 2 | — | 2 | 2 | 2 | 2 | — | 2 | — | — | — | 1 |
Wind waves Height (m) Direction Period (s) | — | — | — | S 6 | SSW 6 | S 6 | SSW 6 | — | SSW 6 | — | SSW 6 | SSW 6 | SSW 6 | — | SSW 6 | SSW 6 | SSW 6 | SSW 6 | — |
| kJ | — | — | — | 19 | 39 | 71 | 137 | — | 62 | — | 68 | 64 | 136 | — | 110 | 155 | 85 | 108 | — |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 0 | 59 | 1166 | 529 | 134 | 1174 | 76 | 3 | 131 | 3 | 134 | 84 | 14 | 0 | 141 | 31 | 136 | 159 | 136 |
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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