Road K Surf Break

Lat Long: 40.83° N 72.51° W

Road K Surf Forecast and Surf Report

Issued: 7 pm 08 Sep 2026 (local time)

Forecast update in  hr  min

Today's Road K sea temperature is
22.2°C
1.4° 

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 9 Sep 2026:

  • Best quality surf: Thursday 10 Sep, 11PM (local time) - 3.5ft (1.1m), 7s period, SSW swell with offshore winds.
  • Most powerful swell: Thursday 10 Sep, 5AM (local time) - 7ft (2.1m), 7s period, SSW swell with 373 kJ wave energy.
  • Next surfable swell (1★+): Thursday 10 Sep, 11PM (local time) - 3.5ft (1.1m), 7s period with SSW 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 Thursday (Sep 10) at 11PM. The primary swell is predicted to be 1.1m and 7s period with a secondary swell of 0.3m and 10s. 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 2.1m 7s and forecast to arrive on Thursday (Sep 10) at 5AM. 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 2s period and expected on Friday (Sep 11) at 11AM.

Wave TypeTime (EDT) & Date Wave Height & Period
Next good surf (1 star+)11PM (Thu 10th Sep)3.5ft (1.1m) 7s
Best Surf11PM (Thu 10th Sep)3.5ft (1.1m) 7s
Most Powerful 5AM (Thu 10th Sep)7ft (2.1m) 7s

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


The Lowdown

G’day, I’m Rusty. Well, we’re looking at a pretty lean run here for Road K, a sandbar break that’s exposed to SSE swell. It’s going to be a long wait, so don’t hold your breath. The first surfable moment doesn’t pop up until Friday, September 11. Before that, we’ve got a couple of days with nothing worth paddling for—Wednesday and Thursday are a write-off with cross-onshore winds and weak, short-period dribble.

Come Friday morning, things clean up. We’ll have a moderate offshore breeze from the NNW and a tiny 0.7 ft S swell with a period of 6 seconds. It’s not going to blow your mind—the wave energy is only 53—but it’s clean and surfable. That same pattern holds into Friday afternoon with similar 0.7 ft S swell and a moderate offshore. Honestly, it’s the best of a quiet bunch, just small and ordinary.

Saturday and Sunday do nothing—tiny waves, light cross or onshore wind, no energy to speak of.

Monday, September 14, the morning goes glassy with a tiny 3 ft SSE swell (6-second period) and only 69 energy. It’s surfable but very ordinary. The morning window is your only chance there before it goes cross-onshore in the arvo.

The rest of the first week is more of the same—small, weak, and mostly choppy. Nothing worth setting an alarm for.

We roll into the second week, and Tuesday, September 22, offers a spark in the afternoon. Clear skies, a light offshore from the NW, and 3 ft ESE swell with an 8-second period. That’s clean and the wave energy hits 91—not huge, but it’s the best we’ve seen. Wednesday morning follows with a gentle offshore from the NNW and 2 ft E swell (8 seconds), clean again but tiny.

Now, check out Thursday, September 24 morning. This is the standout. We get a long-period groundswell—2 ft SSE swell with a massive 17-second period. The combined energy is a solid 365, so there’s proper grunt behind it. The wind is a clean cross-offshore from the NNE, so conditions are tidy. Keep in mind, that very long period swell (over 15 seconds) can make a sandbar break like Road K a bit straight. It’s not the ideal spot for it—point breaks or reefs would handle it better—but for this stretch, it’s the best on offer. Overall, nothing here is cranking, but that Thursday morning is the one to point your board at. Thursday, September 24, is the highlight—just don’t expect perfection.

This is Rusty, signing off.

Short Range Forecast

Some drizzle, heaviest during Thu morning. Warm (max 26°C on Thu afternoon, min 20°C on Fri morning). Winds increasing (light winds from the SSW on Wed morning, strong winds from the SW by Wed night).

Days 5-7 Weather Summary

Light rain (total 2mm), mostly falling on Sun afternoon. Warm (max 23°C on Fri night, min 18°C on Fri night). Wind will be generally light.

Wednesday
9
Thursday
10
Friday
11
Saturday
12
Sunday
13
Monday
14
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
0
0
0
1
1
1
0
0
0
0
0
0
1
1
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
9
0.2
SSE
8
0.8
SSW
4
1.9
SSW
6
1.7
SSW
7
1.4
SSW
7
1
SSW
7
0.7
S
6
0.7
S
6
0.5
S
6
0.3
SE
9
0.3
SE
10
0.4
SE
10
0.9
SSE
5
1
SSE
6
1.1
SSE
6
0.8
SSE
6
0.7
SSE
6
0.4
SE
9
Wave Graph
Metric surfscale
Energy kJ
12
7
21
279
256
181
96
38
41
20
14
15
34
46
67
82
38
30
20
Wind (km/h)
15
WSW
20
S
35
SSW
45
SW
30
WSW
20
SW
15
NNE
25
NNW
20
NW
15
N
5
E
10
SSE
15
S
10
E
5
SE
5
ESE
5
ESE
5
ESE
15
WSW
Wind State
cross
cross-on
cross-on
cross-on
cross
cross
cross-off
off
off
cross-off
cross
on
cross-on
cross
on
glassy
glassy
cross-on
cross
High Tide
6:35AM1.05m
6:58PM1.18m
7:24AM1.11m
7:45PM1.18m
8:09AM1.16m
8:30PM1.16m
8:53AM1.17m
9:14PM1.12m
9:36AM1.16m
9:57PM1.06m
10:20AM1.13m
10:40PM0.99m
Low Tide
00:22AM0.08m
12:27PM0.07m
1:08AM0.04m
1:19PM0.04m
1:47AM0.01m
2:04PM0.02m
2:22AM0.01m
2:44PM0.02m
2:55AM0.02m
3:22PM0.05m
3:29AM0.05m
3:59PM0.09m
4:04AM0.09m
part cloud
part cloud
part cloud
part cloud
rain showers
part cloud
cloud
clear
clear
clear
clear
clear
cloud
cloud
light rain
part cloud
part cloud
part cloud
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:24
6:24
6:26
6:26
6:28
6:28
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:10
7:08
7:07
7:06
7:04
7:02
7:00
 mm
1
2
Temp °C
23
23
23
23
23
26
26
20
24
23
19
20
22
20
19
20
22
23
24
Feels °C
20
22
21
18
20
26
25
16
19
18
18
19
22
19
19
21
24
26
27
  • 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