Surf Forecasts:
Road K surf forecast from 23 Aug 2026:
- Best quality surf: Tuesday 25 Aug, 2AM (local time) - 1.5ft (0.4m), 11s period, SE swell with cross-offshore winds.
- Most powerful swell: Friday 28 Aug, 2AM (local time) - 3.5ft (1.0m), 9s period, SE swell with 155 kJ wave energy.
- Next surfable swell (1★+): Tuesday 25 Aug, 2AM (local time) - 1.5ft (0.4m), 11s 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 Tuesday (Aug 25) at 2AM. The primary swell is predicted to be 0.7m and 6s period with a secondary swell of 0.4m and 11s. 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 1.0m 9s and forecast to arrive on Friday (Aug 28) at 2AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.5m 4s period and expected on Monday (Aug 24) at 5AM.
| Wave Type | Time (EDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 2AM (Tue 25th Aug) | 1.5ft (0.4m) 11s |
| Best Surf | 2AM (Tue 25th Aug) | 1.5ft (0.4m) 11s |
| Most Powerful | 2AM (Fri 28th Aug) | 3.5ft (1.0m) 9s |
Table - best surf conditions forecast for Road K over the next 16 days.
The Lowdown
Alright folks, it’s Rusty here. Let’s have a look at what’s on the cards for the Road K stretch.
Straight up, the next week and a half is a bit of a write-off. We’re looking at a long, dry gap with nothing worth paddling out for until the 5th of September. The first week is plagued by tiny, weak swell and pretty ordinary wind – mostly cross or cross-onshore, keeping things choppy and messy. The water is a touch warmer than average at 74°, but that’s about the only thing going for it.
The first real glimmer of hope arrives on the morning of Saturday the 5th of September. The swell picks up to 4ft from the SSE, with a solid 13-second period, giving it some real grunt. The combined energy jumps to 538 (moderate wave energy), but the wind is a strong offshore from the NW at 16 mph, which will clean things up nicely. This is promising, but it’s a late call and the tide might be a factor, so keep your expectations in check.
The morning of Sunday the 6th of September is your best bet. We’ve got a clean 3ft swell from the SE, with a long 11-second period and a light cross-offshore breeze from the north. It’s not huge, but it’s clean, and the energy is moderate (217). This is the standout of the whole window – a good, clean session for the more experienced crew. The swell is long period, so it’ll run better at the point and reef setups than straight down the beach.
For the beginners, the biggest swell is 4ft, which is right on the edge of being too much, so keep an eye on it. The long period groundswells are best for the points and reefs here.
Overall, it’s a long wait for a couple of decent mornings. Don’t get too excited about the early stuff, but that Saturday morning has potential, and Sunday morning is the real pick.
Rusty.
Short Range ForecastLight rain (total 5mm), mostly falling on Sun morning. Warm (max 26°C on Sun night, min 19°C on Tue night). Wind will be generally light. | Days 4-6 Weather SummaryLight rain (total 3mm), mostly falling on Fri morning. Warm (max 25°C on Thu night, min 19°C on Wed morning). Wind will be generally light. | ||||||||||||||||||||
Sunday 23 | Monday 24 | Tuesday 25 | Wednesday 26 | Thursday 27 | Friday 28 | Saturday 29 | |||||||||||||||
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) | ESE 12 | SE 12 | SSE 6 | S 6 | S 6 | SE 11 | SE 11 | SE 10 | SE 11 | SE 9 | ESE 8 | ESE 8 | ESE 8 | ESE 9 | SE 9 | SE 8 | SE 8 | SE 8 | SE 8 | S 7 | SE 8 |
Wave Graph  | |||||||||||||||||||||
 kJ | 15 | 23 | 47 | 62 | 62 | 33 | 18 | 28 | 29 | 40 | 47 | 43 | 40 | 54 | 155 | 82 | 80 | 53 | 31 | 43 | 34 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross | cross | cross-on | cross-off | cross-off | cross | off | cross-off | cross-on | cross-on | on | on | cross-on | cross | cross-on | off | off | cross-on | cross-off |
High Tide | 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 | 9:00AM1.07m | 9:18PM1.09m | ||||||||
Low Tide | 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 | 2:33PM0.03m | 2:54AM0.00m | |||||||
 |  |  | | | | | | | | |  |  | |  | | | | | | | |
 | 6:07 | — | — | 6:07 | — | — | 6:09 | — | — | 6:09 | — | — | 6:11 | — | — | 6:11 | — | — | 6:13 | — | — |
 | — | 7:37 | — | — | 7:35 | — | — | 7:34 | — | — | 7:31 | — | — | 7:30 | — | — | 7:29 | — | — | 7:27 | — |
mm | 5 | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | 2 | — | — | — | — | — |
Temp °C | 24 | 25 | 26 | 23 | 23 | 24 | 22 | 23 | 23 | 21 | 23 | 24 | 24 | 24 | 25 | 24 | 24 | 25 | 24 | 26 | 25 |
Feels °C | 24 | 25 | 23 | 20 | 20 | 22 | 19 | 20 | 21 | 20 | 20 | 22 | 23 | 23 | 26 | 24 | 25 | 26 | 24 | 25 | 24 |
Swell 1 Height (m) Direction Period (s) | ESE 4 | E 4 | SSE 6 | S 6 | SE 11 | SSW 6 | SSW 6 | ESE 6 | SSW 5 | SE 9 | ESE 8 | ESE 8 | ESE 8 | ESE 9 | SE 9 | S 7 | SE 8 | SE 8 | S 6 | S 7 | S 6 |
| kJ | 8 | 3 | 47 | 62 | 33 | 33 | 18 | 8 | 20 | 40 | 47 | 43 | 40 | 54 | 155 | 56 | 80 | 53 | 25 | 43 | 19 |
Swell 2 Height (m) Direction Period (s) | ESE 7 | SE 12 | SE 12 | SE 12 | E 7 | SE 11 | ESE 6 | SE 10 | SE 11 | SSW 5 | — | S 6 | S 6 | S 6 | S 6 | SE 8 | E 10 | S 6 | SE 8 | SE 8 | SE 8 |
| kJ | 11 | 23 | 22 | 21 | 4 | 30 | 8 | 28 | 29 | 9 | — | 6 | 5 | 1 | 29 | 82 | 2 | 25 | 31 | 30 | 34 |
Swell 3 Height (m) Direction Period (s) | ESE 12 | SE 8 | E 7 | ESE 8 | — | E 6 | SE 11 | E 6 | ESE 6 | ESE 6 | — | — | E 8 | E 11 | E 11 | E 10 | — | SSE 6 | S 8 | — | E 9 |
| kJ | 15 | 11 | 4 | 11 | — | 3 | 18 | 1 | 3 | 4 | — | — | 1 | 2 | 2 | 2 | — | 7 | 5 | — | 1 |
Wind waves Height (m) Direction Period (s) | — | SSW 3 | SW 5 | WSW 4 | S 6 | W 4 | W 4 | SW 4 | — | — | SSW 3 | SSW 4 | S 6 | S 4 | S 7 | — | S 6 | — | — | — | — |
| kJ | — | 6 | 16 | 6 | 62 | 9 | 7 | 18 | — | — | 5 | 6 | 22 | 19 | 56 | — | 38 | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 636 | 329 | 32 | 61 | 84 | 0 | 263 | 271 | 0 | 0 | 718 | 221 | 244 | 839 | 59 | 31 | 59 | 0 | 0 | 268 | 81 |
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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