Road K Surf Break

Lat Long: 40.83° N 72.51° W

Road K Surf Forecast and Surf Report

Issued: 1 am 10 Sep 2026 (local time)

Forecast update in  hr  min

Today's Road K sea temperature is
21.8°C
1.2° 

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 10 Sep 2026:

  • Best quality surf: Thursday 10 Sep, 11PM (local time) - 3.5ft (1.0m), 7s period, SSW swell with cross-offshore winds.
  • Most powerful swell: Thursday 10 Sep, 8AM (local time) - 5.5ft (1.7m), 7s period, SSW swell with 262 kJ wave energy.
  • Next surfable swell (1★+): Thursday 10 Sep, 11PM (local time) - 3.5ft (1.0m), 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 1.0m and 7s period with a secondary swell of 0.3m and 10s. 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 1.7m 7s and forecast to arrive on Thursday (Sep 10) at 8AM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.2m 2s period and expected on Friday (Sep 11) at 5AM.

Wave TypeTime (EDT) & Date Wave Height & Period
Next good surf (1 star+)11PM (Thu 10th Sep)3.5ft (1.0m) 7s
Best Surf11PM (Thu 10th Sep)3.5ft (1.0m) 7s
Most Powerful 8AM (Thu 10th Sep)5.5ft (1.7m) 7s

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


The Lowdown

G’day, it’s Rusty here. Let’s be straight with you: the next couple of weeks look pretty grim for a proper paddle. Lots of wind, lots of messy, short-period swell, and not a whole lot of quality. If you’re desperate to get wet, you’ll need to pick your moments, and even then, it’s more about a quick, ordinary session than chasing anything epic.

First up, this coming Thursday the 10th is a write-off. There’s a moderate cross-shore breeze and a weak, 7-second swell pushing in at about 5ft. The energy is weak (236), and with that wind chop, it’s just poor. The water’s running at 71°F, which is a touch warmer than average for this time of year, but that’s about all it has going for it. Friday morning the 11th is the first faint glimmer of hope. The wind swings offshore from the NNW, and while the swell drops to a tiny 2ft from the S at 6 seconds, it’s clean. We’re only talking ankle to knee-high, but it’s surfable. The energy is real weak (50), but if you’ve got a longboard and no standards, it’s something. That afternoon the wind goes onshore and it’s done.

The weekend is pretty much a bust. Saturday the 12th has next to nothing, with swell under 2ft. Sunday the 13th sees a slight bump to 3ft, but it’s got a cross-shore wind and a super short 5-second period, making it bumpy and weak. Monday the 14th morning has a clean offshore wind, but the swell is only 1ft – too small to be worth the effort. For the rest of that week, we’re looking at mostly onshore or cross-onshore winds and weak, short-period slop. The energy never gets above a hundred, which tells you how weak it is. The 17th and 18th have stronger winds, and while the 18th afternoon is clean with a cross-offshore breeze and a 3ft east swell, the period is still short at 6 seconds. It’s a one-star sort of day at best.

Now, the one thing that might get your attention is the 21st of September. The swell kicks up to 5-6ft from the ESE, and the energy jumps to a strong 336. But here’s the catch: it’s coming with a fresh to strong cross-shore wind, which is going to turn it into a lumpy, choppy mess. The period is still only 7-8 seconds, so it’s windswell, not groundswell. It’s going to be a lot of water moving around, but for surfing, it’s poor. With that much cross-shore wind and a beach setup, this one is looking more interesting for the kite surfers than for us paddle surfers.

The 22nd sees gale-force cross-shore winds – you won’t want to be out there on a surfboard. After that, the 23rd and 24th have some cleaner offshore winds, but the swell is only 4ft and the period is still short. It’s surfable, but nothing special. A couple of clean-ish mornings, but the lack of size and period keeps it ordinary.

So, where does that leave us? The standout, if you can call it that, is the morning of Friday the 11th. It’s clean and offshore, but it’s tiny. That’s your best bet for a longboard and a quiet paddle. Later on, the afternoon of the 18th is clean too, with a bit more size (3ft), but it’s short-period and the energy is only moderate (148). The 24th morning is also clean with a gentle offshore, but again, it’s all in the 4ft range with a short period. There’s no big, powerful groundswell on the cards. All of these are more about escaping the wind than scoring epic waves.

And about Road K – it’s a sandbar, and it’s very consistent when there’s swell. But a sandbar with short-period swell and onshore winds is going to be a mess. It’s exposed, so it’s going to feel every bit of that wind. It’s not a spot where the tide is going to save you from a lumpy ocean.

The long-range stuff, like the 23rd and 24th, is a bit more promising, but it’s still a week and a half away, so don’t book your flights just yet. The forecast could change, but as it stands, it’s a while before we see any real quality. Keep your expectations low, and maybe dust off the kiteboard for the 21st and 22nd.

Alright, that’s the picture. It’s a bit of a bleak one, but that’s the coast for you. The ocean will sort itself out eventually.

Rusty.

Short Range Forecast

Light rain (total 7mm), mostly falling on Sat night. Warm (max 27°C on Thu afternoon, min 19°C on Fri night). Winds decreasing (fresh winds from the WSW on Thu morning, light winds from the NNW by Fri night).

Days 4-6 Weather Summary

Moderate rain (total 12mm), heaviest on Sun morning. Warm (max 25°C on Sun night, min 18°C on Tue night). Wind will be generally light.

Thursday
10
Friday
11
Saturday
12
Sunday
13
Monday
14
Tuesday
15
Wednesday
16
AM
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
0
0
0
0
0
0
1
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)
1.6
SSW
7
1.2
SSW
7
0.9
SSW
6
0.7
S
6
0.6
S
6
0.5
SSW
7
0.3
SE
9
0.3
SE
10
0.4
SE
10
0.9
SSE
5
0.9
SSE
5
0.8
SSE
5
0.4
SE
9
0.7
SE
6
0.4
SE
9
1.2
ESE
6
1.1
ESE
6
0.8
SE
6
0.7
S
5
0.9
S
4
1.3
SSW
5
Wave Graph
Metric surfscale
Energy kJ
222
124
72
35
28
25
14
15
34
37
42
31
28
33
31
87
85
36
21
31
99
Wind (km/h)
25
WSW
20
SW
20
N
15
NNW
15
SW
10
NNE
10
ESE
15
SSE
15
S
15
WSW
5
WSW
15
WSW
25
NNW
20
NW
20
ENE
15
SE
15
SSE
20
SSW
20
SW
25
SSW
30
SW
Wind State
cross
cross
cross-off
off
cross-on
cross-off
cross-on
on
on
cross
cross
cross-off
off
off
cross
on
on
cross-on
cross-on
cross-on
cross-on
High Tide
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
11:03AM1.09m
11:24PM0.92m
11:48AM1.03m
00:11AM0.85m
Low Tide
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
4:38PM0.14m
4:41AM0.14m
5:21PM0.20m
rain showers
clear
part cloud
part cloud
clear
clear
clear
part cloud
mod rain
heavy rain
clear
clear
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:24
6:26
6:26
6:28
6:28
6:30
6:31
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:07
7:06
7:04
7:02
7:00
6:59
6:58
 mm
1
6
12
Temp °C
23
27
26
21
23
22
20
22
23
23
23
25
22
25
23
19
19
20
21
21
21
Feels °C
21
26
26
18
22
21
19
21
22
25
25
27
21
20
18
16
16
18
19
18
18
  • 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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