Surf Forecasts:
Road K surf forecast from 20 Jul 2026:
- Best quality surf: Wednesday 22 Jul, 11PM (local time) - 6ft (1.9m), 9s period, S swell with offshore winds.
- Most powerful swell: Wednesday 22 Jul, 5PM (local time) - 7.5ft (2.3m), 9s period, S swell with 866 kJ wave energy.
- Next surfable swell (1★+): Sunday 19 Jul, 11PM (local time) - 3ft (0.9m), 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 (Jul 19) at 11PM. The primary swell is predicted to be 0.9m 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 2.3m 9s and forecast to arrive on Wednesday (Jul 22) at 5PM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.7m 4s period and expected on Thursday (Jul 23) at 8AM.
| Wave Type | Time (EDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 11PM (Sun 19th Jul) | 3ft (0.9m) 7s |
| Best Surf | 11PM (Wed 22nd Jul) | 6ft (1.9m) 9s |
| Most Powerful | 5PM (Wed 22nd Jul) | 7.5ft (2.3m) 9s |
Table - best surf conditions forecast for Road K over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let's have a look at what's cookin' at Road K. Truth be told, it's a bit of a lean run ahead, so we gotta be honest about it.
Right off the bat, we're looking at a solid gap of nothing. The first few days are a write-off. Sunday the 19th and Monday the 20th are basically flat with poor conditions, so don't bother paddling out. The waiting game starts here.
The first real flicker of hope comes on Wednesday the 22nd. We've got a 7ft S swell rolling in with a 9-second period. It's not the cleanest—wind is a cross-off from the WNW at 19 mph—but the wave energy jumps up to 671 (moderate), which is the most interesting number we've seen. The comments say "marginal," and I'd agree. It's a sandbar setup, so with that size and a bit of wind, it'll be a bit lumpy. The afternoon drops to 6ft, still S, but with a cross-off breeze, it might clean up a touch for a few. This is about as good as it gets, but it's not a classic.
Thursday the 23rd morning sees a 4ft S swell with a clean cross-off from the NE at 9 mph. The energy is down to 242, but that glassy morning wind is a major positive. It'll be small, but for a beginner-friendly spot, it could be a fun little session if you're not expecting much. After that, it's back to the doldrums.
From Friday the 24th through to the end of the forecast, it's a long stretch of poor conditions. Small swells, onshore winds, and cross-chop dominate. There's a blip on the 29th with a 5ft SSW swell, but it's riddled with risk of thunderstorms and an onshore wind, so it's a messy one. The 30th of July has a clean-looking cross-off wind, but the swell is tiny at 2ft. The 1st of August morning has a light offshore wind, but again, the swell is only 2ft.
So, the standout? It's got to be Wednesday the 22nd. That 7ft S swell with the 9-second period is the biggest pulse we've got. The water temp is a normal 71° for this time of year, so no surprises there. Roads K is a sandbar that's exposed to the SSE swell, so this S swell will wrap in a bit. For a beginner, that 7ft might be a bit too much, but it's the only real window of decent size. If you're an expert looking for a challenge, that's your call. Otherwise, the whole 16-day window is a dud for most. It's a sandbar, so long period stuff isn't a worry here, but this is a short period swell anyway.
Stay patient, folks. The ocean will come around.
Rusty
Short Range ForecastHeavy rain (total 22mm), heaviest during Tue night. Warm (max 26°C on Wed afternoon, min 19°C on Sun night). Winds increasing (calm on Mon morning, strong winds from the SW by Tue night). | Days 5-7 Weather SummaryMostly dry. Warm (max 26°C on Wed night, min 17°C on Wed night). Wind will be generally light. | ||||||||||||||||||
Monday 20 | Tuesday 21 | Wednesday 22 | Thursday 23 | Friday 24 | Saturday 25 | ||||||||||||||
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 8 | S 7 | S 7 | S 7 | S 5 | S 6 | SSE 6 | S 9 | S 9 | S 9 | S 8 | S 8 | S 8 | S 8 | ESE 8 | ESE 8 | SE 7 | SE 7 | SE 7 |
Wave Graph  | |||||||||||||||||||
 kJ | 90 | 70 | 48 | 38 | 69 | 106 | 143 | 846 | 866 | 528 | 239 | 167 | 105 | 80 | 112 | 101 | 79 | 77 | 71 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | glassy | on | on | on | on | cross | cross | cross | off | off | cross-on | glassy | cross-off | on | off | cross | on | cross-on |
High Tide | 00:32AM0.98m | 1:06PM1.00m | 1:23AM0.90m | 2:00PM0.97m | 2:18AM0.83m | 2:55PM0.95m | 3:16AM0.78m | 3:51PM0.95m | 4:14AM0.76m | 4:45PM0.97m | 5:08AM0.76m | 5:34PM0.99m | |||||||
Low Tide | 6:12AM0.09m | 6:45PM0.20m | 6:56AM0.14m | 7:43PM0.25m | 7:42AM0.19m | 8:45PM0.29m | 8:30AM0.22m | 9:55PM0.30m | 9:20AM0.23m | 11:10PM0.28m | 10:13AM0.23m | 00:06AM0.26m | |||||||
 | | |  |  |  |  |  | |  | | | | | | | | | | |
 | — | 5:35 | — | — | 5:35 | — | — | 5:35 | — | — | 5:37 | — | — | 5:37 | — | — | 5:39 | — | — |
 | 8:16 | — | 8:16 | — | — | 8:15 | — | — | 8:15 | — | — | 8:14 | — | — | 8:14 | — | — | 8:13 | — |
mm | — | — | — | — | — | 3 | 17 | 1 | 1 | — | — | — | — | — | — | — | — | — | — |
Temp °C | 24 | 21 | 23 | 22 | 22 | 24 | 23 | 24 | 26 | 26 | 18 | 22 | 22 | 21 | 22 | 21 | 21 | 22 | 21 |
Feels °C | 21 | 20 | 20 | 20 | 19 | 23 | 21 | 23 | 26 | 23 | 14 | 19 | 20 | 21 | 21 | 19 | 20 | 20 | 19 |
Swell 1 Height (m) Direction Period (s) | S 8 | S 7 | S 7 | S 7 | SE 12 | S 6 | SSE 6 | — | S 9 | S 9 | S 8 | S 8 | S 8 | SE 7 | ESE 8 | ESE 8 | SE 7 | SE 7 | SE 7 |
| kJ | 90 | 70 | 48 | 38 | 6 | 106 | 143 | — | 707 | 528 | 239 | 167 | 105 | 67 | 112 | 101 | 79 | 77 | 71 |
Swell 2 Height (m) Direction Period (s) | SE 12 | SE 12 | SE 12 | SE 8 | SE 12 | E 5 | ESE 7 | — | — | — | — | SE 8 | SE 7 | S 8 | S 8 | S 7 | SSW 7 | SSW 6 | SSW 6 |
| kJ | 6 | 6 | 6 | 3 | 5 | 11 | 5 | — | — | — | — | 53 | 59 | 80 | 58 | 39 | 15 | 13 | 8 |
Swell 3 Height (m) Direction Period (s) | — | — | SE 8 | SE 12 | — | SE 12 | S 12 | — | — | — | — | — | — | — | — | E 5 | — | — | SSW 6 |
| kJ | — | — | 3 | 6 | — | 6 | 3 | — | — | — | — | — | — | — | — | 10 | — | — | 8 |
Wind waves Height (m) Direction Period (s) | — | NNE 3 | — | S 4 | S 5 | — | — | S 9 | S 9 | NNW 3 | NE 4 | ENE 5 | — | ENE 4 | E 5 | — | E 4 | — | — |
| kJ | — | 1 | — | 7 | 69 | — | — | 846 | 866 | 2 | 9 | 4 | — | 15 | 25 | — | 13 | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 3 | 0 | 3 | 1755 | 268 | 1166 | 1166 | 84 | 134 | 17 | 26 | 71 | 774 | 0 | 72 | 59 | 0 | 55 | 530 |
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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