Surf Forecasts:
Road K surf forecast from 13 Jul 2026:
- Best quality surf: Wednesday 15 Jul, 11PM (local time) - 2.5ft (0.8m), 6s period, SSW swell with glassy winds.
- Most powerful swell: Tuesday 14 Jul, 11PM (local time) - 6.5ft (2.0m), 6s period, SW swell with 311 kJ wave energy.
- Next surfable swell (1★+): Wednesday 15 Jul, 11PM (local time) - 2.5ft (0.8m), 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 Wednesday (Jul 15) at 11PM. The primary swell is predicted to be 0.8m and 6s period with a secondary swell of 0.3m and 9s. 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 2.0m 6s and forecast to arrive on Tuesday (Jul 14) at 11PM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.4m 3s period and expected on Friday (Jul 17) at 11PM.
| Wave Type | Time (EDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 11PM (Wed 15th Jul) | 2.5ft (0.8m) 6s |
| Best Surf | 11PM (Wed 15th Jul) | 2.5ft (0.8m) 6s |
| Most Powerful | 11PM (Tue 14th Jul) | 6.5ft (2.0m) 6s |
Table - best surf conditions forecast for Road K over the next 16 days.
The Lowdown
Alright, let’s get real here. For the next 16 days, there’s really not much to get excited about. The surf is mostly small and messy, with only a couple of brief windows where it could be worth a look. Expect a lot of waiting around.
The first chance of anything rideable is Wednesday, July 15th, at Road K (sandbar). Tuesday the 14th sees bumpy, cross-shore slop with a 3ft to 5ft swell but it’s got a short period of 5 seconds and fresh to strong cross-onshore winds – that’s a mess, not surf. The combined energy on Tuesday afternoon is a moderate 147, but the quality is just not there.
Wednesday morning, July 15, we finally get a bit of a clean-up. Swell is at 5ft from the SW, period 6 seconds, with a gentle cross-offshore wind. The combined energy jumps to 299 (moderate), and the wind is light enough to keep it clean. The water temperature is around 70°, which is about average for the time of year. It’s not a standout, but it’s the best you’ll see for a few days. After that, it drops back to tiny, choppy junk for the rest of the week.
The next real glimmer is on Monday, July 20th. The morning is small and cross-shore, but the afternoon sees a 6ft easterly swell with a 7-second period and strong onshore wind. Combined energy is 422 (strong), but the wind is blowing straight onshore, so expect blown-out, lumpy conditions. That’s more of a kite day than a paddle day.
Tuesday, July 21st, has a 4ft south swell with a longer 9-second period, and the combined energy is 370 (strong). But again, the wind is onshore, so the quality is poor. It’s a tease.
There’s a very brief window on Thursday, July 23rd, in the morning. At Road K, we’ve got a 4ft south swell, 8-second period, combined energy of 171 (moderate), and the wind is glassy – clean, smooth conditions. This is your best bet in the entire outlook. The swell is small, but the glassy conditions make it the only true standout for a clean surf. It’s a quiet, uncrowded option if you want to get a few small ones.
After that, the wind goes onshore or cross-onshore again, and the swell stays small and weak. The last week of July and into the 28th is mostly poor, with small swells, strong cross-onshore winds, and combined energy dropping below 100. Not worth the paddle.
So, to sum it up: the best day is Thursday morning, July 23rd, at Road K – small, glassy, and clean. Wednesday morning July 15th is a backup if you’re desperate. The rest of the 16 days is a write-off for quality surf.
Rusty.
Short Range ForecastMostly dry. Warm (max 31°C on Wed afternoon, min 22°C on Mon morning). Winds decreasing (strong winds from the SW on Tue night, calm by Wed night). | Days 4-6 Weather SummaryModerate rain (total 17mm), heaviest on Sat night. Warm (max 29°C on Thu afternoon, min 20°C on Fri night). Winds increasing (calm on Sat morning, strong winds from the SSW by Sat night). | ||||||||||||||||||||
Monday 13 | Tuesday 14 | Wednesday 15 | Thursday 16 | Friday 17 | Saturday 18 | Sunday 19 | |||||||||||||||
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) | SE 10 | S 4 | SSW 4 | SW 5 | SSW 5 | SW 7 | SW 6 | SSW 6 | SSW 6 | SSW 6 | SSW 6 | SSW 5 | S 6 | S 6 | S 6 | SSW 5 | SSW 5 | S 6 | S 6 | S 6 | ESE 5 |
Wave Graph  | |||||||||||||||||||||
 kJ | 14 | 14 | 35 | 41 | 133 | 305 | 178 | 57 | 34 | 58 | 51 | 30 | 22 | 23 | 17 | 9 | 9 | 3 | 12 | 10 | 35 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross-on | cross | cross-on | cross | cross-off | cross | cross | cross-off | cross | cross-off | off | cross-off | off | cross-on | cross-on | cross-on | cross-off | off | cross-off |
High Tide | 7:29PM1.26m | 7:59AM1.00m | 8:22PM1.27m | 8:52AM1.04m | 9:14PM1.25m | 9:45AM1.06m | 10:04PM1.21m | 10:36AM1.06m | 10:54PM1.15m | 11:26AM1.05m | 11:43PM1.07m | 12:15PM1.03m | 00:32AM0.98m | ||||||||
Low Tide | 12:33PM-0.01m | 1:38AM-0.02m | 1:32PM-0.03m | 2:29AM-0.05m | 2:26PM-0.03m | 3:16AM-0.06m | 3:18PM-0.01m | 4:01AM-0.04m | 4:09PM0.03m | 4:45AM-0.01m | 4:59PM0.08m | 5:28AM0.04m | 5:51PM0.15m | ||||||||
 | |  | | | | | | |  | |  | | | | |  |  |  | | | |
 | 5:28 | — | — | 5:30 | — | — | 5:31 | — | — | 5:31 | — | — | 5:31 | — | — | 5:33 | — | — | 5:33 | — | — |
 | — | 8:21 | — | — | 8:21 | — | — | 8:20 | — | — | 8:19 | — | — | 8:19 | — | — | 8:17 | — | — | 8:16 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 3 | 14 | 5 | 1 | — |
Temp °C | 23 | 22 | 22 | 23 | 26 | 25 | 28 | 31 | 27 | 28 | 29 | 28 | 23 | 26 | 25 | 22 | 24 | 23 | 23 | 24 | 21 |
Feels °C | 21 | 19 | 18 | 19 | 22 | 21 | 28 | 29 | 27 | 25 | 25 | 25 | 18 | 24 | 23 | 22 | 22 | 21 | 22 | 23 | 18 |
Swell 1 Height (m) Direction Period (s) | S 6 | SE 9 | SE 9 | SE 9 | SE 9 | SE 9 | SSW 6 | SSW 6 | SSW 6 | SSW 6 | SSW 6 | SSW 5 | S 6 | S 6 | S 6 | SSW 5 | SE 8 | SSW 3 | S 6 | S 6 | S 6 |
| kJ | 7 | 14 | 13 | 13 | 13 | 13 | 103 | 57 | 34 | 39 | 51 | 30 | 22 | 23 | 17 | 9 | 3 | 2 | 12 | 10 | 17 |
Swell 2 Height (m) Direction Period (s) | SE 10 | E 7 | E 8 | E 8 | E 8 | — | SE 9 | SE 9 | SE 9 | ESE 8 | ESE 8 | SE 9 | SE 8 | ESE 8 | SE 8 | SE 8 | SE 13 | S 6 | SE 8 | S 7 | SE 12 |
| kJ | 14 | 1 | 1 | 1 | 1 | — | 12 | 12 | 12 | 7 | 7 | 3 | 3 | 7 | 3 | 3 | 7 | 3 | 3 | 4 | 6 |
Swell 3 Height (m) Direction Period (s) | ESE 4 | E 8 | — | — | — | — | S 17 | SE 16 | SE 16 | SE 15 | SE 15 | SE 15 | SE 15 | SE 14 | SE 14 | SE 14 | E 8 | SSW 5 | SE 13 | SE 8 | — |
| kJ | 2 | 1 | — | — | — | — | 6 | 11 | 11 | 9 | 9 | 9 | 8 | 8 | 8 | 7 | 1 | 2 | 7 | 2 | — |
Wind waves Height (m) Direction Period (s) | — | S 4 | SSW 4 | SW 5 | SSW 5 | SW 7 | SW 6 | — | — | SSW 6 | — | — | — | NNW 2 | NNW 3 | N 3 | SSW 5 | SW 3 | SE 3 | ESE 4 | ESE 5 |
| kJ | — | 12 | 35 | 41 | 133 | 305 | 178 | — | — | 58 | — | — | — | 1 | 2 | 1 | 9 | 3 | 2 | 10 | 35 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 1174 | 789 | 774 | 405 | 1166 | 273 | 26 | 75 | 4 | 61 | 2554 | 61 | 36 | 36 | 718 | 245 | 1480 | 1230 | 259 | 594 | 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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