Road K Surf Break

Lat Long: 40.83° N 72.51° W

Road K Surf Forecast and Surf Report

Issued: 7 pm 23 Aug 2026 (local time)

Forecast update in  hr  min

Today's Road K sea temperature is
23.1°C
1.3° 

Road K surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.


Road K surf forecast from 24 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: Saturday 29 Aug, 2AM (local time) - 4ft (1.2m), 6s period, SSW swell with 123 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 1.2m 6s and forecast to arrive on Saturday (Aug 29) at 2AM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.3m 3s period and expected on Monday (Aug 24) at 11PM.

Wave TypeTime (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 (Sat 29th Aug)4ft (1.2m) 6s

Table - best surf conditions forecast for Road K over the next 16 days.


The Lowdown

Alright, let’s take a look at what’s cookin’ for Road K. For the next week or so, it’s pretty slim pickin’s. There’s a long stretch with almost no push. You’ll see plenty of clean, glassy mornings and offshore breezes, but the swell is just bone-crushingly small and weak – we’re talkin’ ankle-knockers with combined energies barely breakin’ 100. It’s not a total loss for a rank beginner who just wants to splash around, but if you want an actual wave, this ain’t it. The water temp is about average for this time of year, so no nasty chills.

The first real sign of life doesn’t pop up until the morning of Wednesday, September 2nd. That’s when the energy finally shows up. A southeast swell rolls in at 3ft with a 13-second period, givin’ it some proper punch. The combined energy hits 309 – moderate, but it feels like a beast after all this flatness. The wind is blowin’ offshore from the northwest and it’s light, so the break is gonna be clean and lined up. This is the first time Road K looks worth paddlin’ out for. For a sandbar, that longer period (13s) can sometimes make it a bit straight, but with that offshore breeze, it should hold its shape. Mark your calendar.

Then things get a bit hairy. On the morning of Thursday, September 3rd, the swell jumps to 5ft from the southeast with a real long period of 15 seconds. The combined energy roars up to 1123 – that’s strong. At that size, you need to know what you’re doin’. It’s no place for beginners. The wind is a stiff cross-offshore from the north-northeast at 28 mph, which will keep the faces clean but is gonna make gettin’ out back a hell of a paddle. That long period groundswell is better for a point or reef, but if Road K can handle it, you’re lookin’ at some heavy, wedgey sets for the experienced crew. This is the standout session of the whole outlook, but it’s a full week out, so keep an eye on it.

After that, it fades fast. Friday the 4th still has some juice, and the morning of Saturday, September 5th has a glassy 2ft wave, but the power is drainin’ quick. By Sunday the 6th, we’re back to tiny, weak slop with onshore wind. It’s one of those outlooks where you wait for that one small window. If you’re keen, aim for that Wednesday the 2nd for a fun, clean session, and be ready for the heavy stuff on Thursday the 3rd – that’s the real deal if you’ve got the stones.

Rusty.

Short Range Forecast

Some drizzle, heaviest during Sun night. Warm (max 25°C on Sun night, min 19°C on Tue night). Wind will be generally light.

Days 5-7 Weather Summary

Moderate rain (total 10mm), heaviest on Thu night. Warm (max 26°C on Sat afternoon, min 21°C on Fri morning). Winds decreasing (fresh winds from the S on Thu afternoon, calm by Sat afternoon).

Monday
24
Tuesday
25
Wednesday
26
Thursday
27
Friday
28
Saturday
29
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
0
0
0
1
1
0
1
1
0
0
0
0
0
1
0
1
1
0
1
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.8
S
6
0.8
S
6
0.8
S
6
0.4
SE
11
0.4
SE
11
0.4
SE
10
0.4
SE
11
0.5
SE
9
0.6
SE
9
0.7
SE
8
0.7
SE
9
0.7
SE
9
1.2
S
6
0.9
SE
8
0.8
SE
8
1.2
SSW
6
0.8
S
6
0.7
S
6
0.6
S
6
Wave Graph
Metric surfscale
Energy kJ
41
49
49
35
29
28
29
40
59
70
77
86
89
102
82
123
48
36
25
Wind (km/h)
20
WSW
20
WSW
20
SSW
15
WNW
15
W
20
W
15
NW
15
NW
15
SSW
20
SSW
20
S
30
S
15
SE
5
WSW
15
SSW
15
WSW
10
N
10
SSW
15
NNE
Wind State
cross
cross
cross-on
cross-off
cross-off
cross-off
off
cross-off
cross-on
cross-on
cross-on
on
cross-on
glassy
cross-on
cross
cross-off
cross-on
cross-off
High Tide
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
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
thunderstorm
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
cloud
part cloud
thunderstorm
rain showers
clear
thunderstorm
clear
part cloud
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:07
6:09
6:09
6:11
6:11
6:13
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:37
7:35
7:34
7:31
7:30
7:29
7:27
 mm
1
7
2
1
Temp °C
25
23
24
24
22
24
24
20
22
23
24
24
24
22
24
25
23
26
26
Feels °C
23
21
21
22
20
21
22
18
20
21
23
23
23
25
25
26
24
26
26
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
Map placeholder
How to use the Wavefinder 
submit an eyeball surf report

Quick surf report for Road K:

join our community of surf reporters

FREE! Surf-Forecast.com widget for your website

The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Road K surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.


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.

Nearest locationNearest