Road K Surf Break

Lat Long: 40.83° N 72.51° W

Road K Surf Forecast and Surf Report

Issued: 1 pm 12 Sep 2026 (local time)

Forecast update in  hr  min

Today's Road K sea temperature is
21.7°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 12 Sep 2026:

  • Best quality surf: Sunday 13 Sep, 5PM (local time) - 2.5ft (0.7m), 6s period, SE swell with offshore winds.
  • Most powerful swell: Tuesday 15 Sep, 8PM (local time) - 3ft (0.9m), 7s period, ESE swell with 77 kJ wave energy.
  • Next surfable swell (1★+): Sunday 13 Sep, 5PM (local time) - 2.5ft (0.7m), 6s 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 Sunday (Sep 13) at 5PM. The primary swell is predicted to be 0.7m and 6s period with a secondary swell of 0.7m 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 7s and forecast to arrive on Tuesday (Sep 15) at 8PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.9m 4s period and expected on Tuesday (Sep 15) at 2AM.

Wave TypeTime (EDT) & Date Wave Height & Period
Next good surf (1 star+) 5PM (Sun 13th Sep)2.5ft (0.7m) 6s
Best Surf 5PM (Sun 13th Sep)2.5ft (0.7m) 6s
Most Powerful 8PM (Tue 15th Sep)3ft (0.9m) 7s

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


The Lowdown

Alright, Rusty here. Let's have a look at what’s on the table for this stretch.

We’re looking at a pretty bleak run for Road K with only one true standout window that shows up way down the line. For the next week and a half, the picture is grim. There’s a solid gap from now, with nothing worth paddling out for until the 12th of September, and even then the surf is tiny—1 ft from the SE with weak energy (22). That’s a desperate time, and it stays poor for days. The 13th through the 22nd barely offer a ripple, with short-period wind slop, cross-onshore junk, and mostly clean but tiny waves on the 14th (2 ft, 9-second period) that won't get your heart going. Basically, we have a dead zone of about 10 days where you wouldn’t even bother waxing the board.

Then there’s a flicker of hope mid-week on the 23rd of September. The Wednesday afternoon brings a jump to 7 ft from the SE with a period of 7 seconds and decent energy (398). The wind turns offshore from the North, 9 mph, so the face should be tidy. That’s a solid bump for Road K, but at 7 ft it’s pushing into expert territory—this will be a heavy wall for the sandbar, not a beginner session. It’s the only real highlight in the whole run, and it’s over a week and a half away.

The next day, the 24th, still has some swell (5 ft, 8-second period) but the wind goes light cross-onshore in the morning. The afternoon though—glass, dead calm, which could clean things right up, but the energy drops to 248. It’s a secondary option at best if the 23rd doesn't pan out.

After that, the surf dribbles off again into small, clean but weak conditions on the 26th. The water temp at the start was 71°, which is a touch warmer than usual—about 2° above the long-term average.

Overall, if you’re a charger, keep your eyes on the 23rd of September afternoon. That’s the one and only standout. For everyone else, this is a long, dry spell with a brief pulse of size.

Rusty.

Short Range Forecast

Heavy rain (total 22mm), heaviest during Sun morning. Warm (max 24°C on Sun night, min 16°C on Mon night). Mainly fresh winds.

Days 5-7 Weather Summary

Mostly dry. Warm (max 21°C on Thu afternoon, min 16°C on Tue night). Wind will be generally light.

Sat
12
Sunday
13
Monday
14
Tuesday
15
Wednesday
16
Thursday
17
Friday
18
PM
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
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.3
SE
10
0.4
SE
10
0.9
S
5
0.7
SE
6
0.4
SE
9
0.6
SE
9
0.6
SE
9
0.5
SE
9
1
E
6
0.8
E
6
0.8
E
7
0.6
E
7
0.7
ESE
7
0.7
ESE
7
0.6
ESE
7
0.3
SE
12
0.4
ESE
6
0.4
SE
6
0.9
ENE
5
0.8
E
6
Wave Graph
Metric surfscale
Energy kJ
15
34
37
31
29
50
47
37
64
44
59
39
55
54
38
24
15
15
40
38
Wind (km/h)
15
SSE
20
SSE
25
SW
15
NW
15
SSW
35
NNW
20
NNW
25
NE
20
ENE
15
ESE
10
ESE
5
E
10
SSE
10
S
10
SSE
15
S
10
SE
15
ENE
20
ESE
20
NE
Wind State
on
on
cross-on
off
cross-on
off
off
cross-off
cross
cross-on
cross-on
cross-on
on
on
on
on
cross-on
cross
cross-on
cross-off
High Tide
9:14PM1.12m
9:36AM1.16m
9:57PM1.06m
10:20AM1.13m
10:40PM0.99m
11:03AM1.09m
11:24PM0.92m
11:48AM1.03m
00:11AM0.85m
12:36PM0.98m
1:03AM0.79m
1:31PM0.93m
2:03AM0.75m
Low Tide
2:44PM0.02m
2:55AM0.02m
3:22PM0.05m
3:29AM0.05m
3:59PM0.09m
4:04AM0.09m
4:38PM0.14m
4:41AM0.14m
5:21PM0.20m
5:23AM0.19m
6:08PM0.26m
6:10AM0.25m
7:02PM0.30m
clear
part cloud
heavy rain
rain showers
clear
rain showers
clear
clear
clear
clear
part cloud
clear
clear
clear
clear
clear
clear
part cloud
light rain
mod rain
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:28
6:28
6:30
6:31
6:31
6:33
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:04
7:02
7:00
6:59
6:58
6:55
6:53
 mm
19
1
2
5
6
Temp °C
21
22
22
22
24
19
23
21
17
18
17
16
17
18
19
21
21
21
20
20
Feels °C
20
22
22
23
25
13
18
14
15
15
15
16
17
18
20
22
23
23
20
22
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
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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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