Surf Forecasts:
Road K surf forecast from 23 Aug 2026:
- Best quality surf: Wednesday 26 Aug, 5AM (local time) - 1.5ft (0.4m), 10s period, SE swell with offshore winds.
- Most powerful swell: Thursday 27 Aug, 11PM (local time) - 3ft (0.9m), 9s period, SE swell with 135 kJ wave energy.
- Next surfable swell (1★+): Wednesday 26 Aug, 5AM (local time) - 1.5ft (0.4m), 10s period with SE 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 26) at 5AM. The primary swell is predicted to be 0.4m and 10s period with a secondary swell of 0.6m and 5s. 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 0.9m 9s and forecast to arrive on Thursday (Aug 27) at 11PM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.4m 4s period and expected on Tuesday (Aug 25) at 5AM.
| Wave Type | Time (EDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 5AM (Wed 26th Aug) | 1.5ft (0.4m) 10s |
| Best Surf | 5AM (Wed 26th Aug) | 1.5ft (0.4m) 10s |
| Most Powerful | 11PM (Thu 27th Aug) | 3ft (0.9m) 9s |
Table - best surf conditions forecast for Road K over the next 16 days.
The Lowdown
Alright, this is Rusty comin' at ya with a look at Road K. Gotta be straight with you – the next couple of weeks are lookin' pretty bleak. There's a real long stretch of nothin' to get excited about, so don't go clearin' your schedule just yet.
We start off Sunday the 23rd of August, and honestly, it's a write-off. There's a tiny bit of swell, barely 1ft from the SE, but it's onshore and we've got risk of thunderstorms. The energy is weak and the surf is poor. This continues on through the whole week. We get a little bump in size around Monday the 24th with 3ft swell, but it's short-period windswell and the wind is all wrong – cross to cross-onshore. The conditions are just too choppy and messy to even think about paddling out.
Tuesday the 25th sees the swell drop back down, and the wind stays messy. By Wednesday the 26th morning, things get a little cleaner with a light cross-offshore breeze and the swell around 2ft, but it's still weak. We get a score of 1/10 for "surfable waves but very ordinary conditions," which is about the best compliment I can give it. That's a sign of how bad it is.
The pattern of weak, onshore, and generally poor surf drags on. Thursday, Friday, Saturday, Sunday... it's all the same story. Small, weak swell, and the wind is either onshore or cross-onshore. There's a moment on Sunday the 30th afternoon with a clean cross-offshore breeze, but the swell is still tiny around 2ft. Not worth the effort.
The first real glimmer of anything happens on Monday the 31st of August. Morning brings a clean offshore breeze from the NNW and a small 1ft SE swell, but here's the interesting part: the period jumps to 17 seconds. That's a very long period groundswell. The energy is still low, but that long period means there's some deep-water energy in the water. At a sandbar, a long period swell like this is likely to be straight and close out fast, but if it links up with the right bank, you might get a sneaky ride. It's still only rated as "surfable but very ordinary," so keep expectations in the gutter.
After that, we're back to small and ordinary. Tuesday the 1st of September is still poor, but Wednesday the 2nd afternoon has a moment: glassy conditions with a light ESE breeze, and the swell is around 3ft from the SE with a period of 11 seconds. The energy is moderate. That glassy surface is a major positive. It's the cleanest the wave face will be in this whole outlook, but the swell is still small and the quality is described as "surfable but very ordinary."
By Thursday the 3rd and Friday the 4th, the wind turns clean offshore from the NW and NNW. The swell on Friday morning is around 4ft from the east with a short period, so it's windswell, but with that offshore breeze it could be rideable. It's not gonna be classic, but for Road K, a clean offshore day is something.
The final days of the forecast, around the 6th and 7th of September, see the swell picking up to 4ft with energy climbing – that's moderate to strong energy. The period improves to 10 seconds on the 6th, which is a better groundswell. The wind on the morning of Sunday the 6th is a clean cross-offshore from the NNE. The combination of chest-high swell, clean wind, and decent period makes this the best looking window in the entire 16 days. It's a long way out, so treat it as promising but not locked in.
To be honest, if you're desperate, the cleanest windows are Wednesday 2nd afternoon (glassy but tiny), Friday 4th (small but clean offshore), and the most hope is pinned on Sunday 6th morning with some size and clean wind. For the rest of it, there's a solid week or more of just poor, onshore, choppy slop.
This is Rusty, signing off.
Short Range ForecastLight rain (total 4mm), mostly falling on Sat night. Warm (max 26°C on Sun night, min 21°C on Sat night). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Warm (max 24°C on Wed afternoon, min 19°C on Tue night). Wind will be generally light. | ||||||||||||||||||
Sunday 23 | Monday 24 | Tuesday 25 | Wednesday 26 | Thursday 27 | Friday 28 | ||||||||||||||
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) | ESE 8 | SE 12 | SE 12 | S 5 | S 6 | S 6 | SE 11 | SE 11 | SSW 4 | SE 11 | SE 9 | ESE 9 | ESE 8 | ESE 8 | ESE 9 | SE 9 | SSE 6 | S 6 | SE 8 |
Wave Graph | |||||||||||||||||||
11 | 24 | 23 | 43 | 71 | 66 | 37 | 20 | 22 | 29 | 36 | 52 | 45 | 40 | 53 | 64 | 64 | 60 | 73 | |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | on | cross-on | cross | cross | cross-on | cross-off | cross | cross-off | cross-off | cross-off | cross-on | cross-on | cross-on | on | on | on | on | on |
High Tide | 4:40AM0.76m | 5:04PM0.97m | 5:32AM0.80m | 5:52PM1.01m | 6:18AM0.86m | 6:36PM1.05m | 7:00AM0.91m | 7:17PM1.08m | 7:40AM0.97m | 7:58PM1.10m | 8:20AM1.02m | 8:38PM1.10m | |||||||
Low Tide | 10:06PM0.32m | 9:39AM0.28m | 11:16PM0.29m | 10:39AM0.26m | 00:01AM0.24m | 11:35AM0.21m | 00:35AM0.18m | 12:25PM0.16m | 1:08AM0.13m | 1:09PM0.11m | 1:42AM0.08m | 1:51PM0.06m | 2:17AM0.03m | ||||||
— | 6:07 | — | — | 6:07 | — | — | 6:09 | — | — | 6:09 | — | — | 6:11 | — | — | 6:11 | — | — | |
7:37 | — | 7:37 | — | — | 7:35 | — | — | 7:34 | — | — | 7:31 | — | — | 7:30 | — | — | 7:29 | — | |
mm | 1 | 2 | — | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 22 | 23 | 25 | 26 | 23 | 24 | 24 | 22 | 24 | 23 | 21 | 24 | 23 | 24 | 24 | 23 | 23 | 23 | 23 |
Feels °C | 23 | 25 | 25 | 25 | 20 | 21 | 22 | 18 | 21 | 21 | 20 | 22 | 22 | 25 | 23 | 23 | 23 | 22 | 24 |
Swell 1 Height (m) Direction Period (s) | ESE 8 | ESE 7 | E 7 | S 5 | SSE 6 | SE 11 | SSW 5 | SSW 6 | ESE 6 | SSW 5 | SSW 5 | ESE 9 | ESE 8 | ESE 8 | ESE 9 | SE 9 | SE 8 | SE 8 | SSW 6 |
11 | 11 | 9 | 43 | 62 | 33 | 37 | 20 | 8 | 26 | 15 | 52 | 45 | 40 | 53 | 64 | 54 | 53 | 56 | |
Swell 2 Height (m) Direction Period (s) | E 5 | SE 12 | SE 8 | SE 12 | SE 12 | — | SE 11 | ESE 6 | SE 10 | SE 11 | SE 9 | — | E 12 | SE 10 | E 11 | E 11 | E 10 | E 10 | SE 8 |
4 | 24 | 11 | 22 | 21 | — | 30 | 8 | 17 | 29 | 36 | — | 3 | 4 | 2 | 2 | 2 | 2 | 73 | |
Swell 3 Height (m) Direction Period (s) | SE 9 | SE 8 | SE 12 | E 7 | — | SE 8 | ESE 6 | SE 11 | E 6 | ESE 6 | ESE 6 | — | — | SE 10 | E 11 | — | — | — | E 10 |
3 | 11 | 23 | 4 | — | 2 | 7 | 18 | 1 | 7 | 3 | — | — | 15 | 2 | — | — | — | 2 | |
Wind waves Height (m) Direction Period (s) | — | ESE 3 | S 3 | — | S 6 | S 6 | SSW 5 | WSW 4 | SSW 4 | — | — | SSW 6 | SSW 6 | SSW 6 | S 6 | SSE 5 | SSE 6 | S 6 | — |
— | 3 | 5 | — | 71 | 66 | 28 | 5 | 22 | — | — | 18 | 17 | 10 | 9 | 39 | 64 | 60 | — | |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 210 | 636 | 151 | 17 | 142 | 141 | 3 | 263 | 136 | 3 | 0 | 260 | 51 | 61 | 1166 | 260 | 187 | 103 | 75 |
Best forecast wave conditions in Long Island New York | |||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||
Header Global | |||||||||||||||||||
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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.











