Road K Surf Break

Lat Long: 40.83° N 72.51° W

Road K Surf Forecast and Surf Report

Issued: 1 pm 13 Sep 2026 (local time)

Forecast update in  hr  min

Today's Road K sea temperature is
21.5°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 13 Sep 2026:

  • Best quality surf: Sunday 13 Sep, 8PM (local time) - 2.5ft (0.8m), 6s period, SSE swell with cross-offshore winds.
  • Most powerful swell: Sunday 20 Sep, 8AM (local time) - 5ft (1.5m), 6s period, SW swell with 146 kJ wave energy.
  • Next surfable swell (1★+): Sunday 13 Sep, 8PM (local time) - 2.5ft (0.8m), 6s period with SSE 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 8PM. The primary swell is predicted to be 0.8m and 6s period with a secondary swell of 0.4m and 9s. 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 1.5m 6s and forecast to arrive on Sunday (Sep 20) 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 0.9m 4s period and expected on Sunday (Sep 20) at 2PM.

Wave TypeTime (EDT) & Date Wave Height & Period
Next good surf (1 star+) 8PM (Sun 13th Sep)2.5ft (0.8m) 6s
Best Surf 8PM (Sun 13th Sep)2.5ft (0.8m) 6s
Most Powerful 8AM (Sun 20th Sep)5ft (1.5m) 6s

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


The Lowdown

Alright, Rusty here. Let's take a look at what Road K has got cooking for us.

First up, the water is sitting at a touch warmer than normal for this time of year, about 71°, so that's a nice little bonus for your session.

We start off on Sunday the 13th with a bit of life in the water. It's not big, only 3ft from the SSE with a short 6-second period, but the key here is that NW wind is blowing offshore and keeping things clean. The energy is weak at 81, but for a beginner-friendly sandbar that's very consistent, this is your best chance to get a few little rollers. After that, Monday the 14th sees the swell drop right off to a tiny 1ft, and even though the wind stays offshore, there's just not enough push to bother with.

From there, we hit a proper dry spell. From Monday afternoon all the way through to Saturday the 19th, the surf is basically flat or blown out with cross and cross-onshore winds. It's a long gap of nothing worth paddling for. The conditions just aren't cooperating.

We get a slight bump on Sunday the 20th with 3ft from the SSW, and a fresh offshore from the NNW will clean it up, but the period is short at 6 seconds and the energy is still weak at 82. It's surfable, but very ordinary.

Things start to get a bit more interesting heading into the second week. On Monday the 21st, we see 4ft from the east with a moderate 7-second period and moderate energy at 184. The wind is a clean cross-offshore from the NE in the morning. That could give you a few fun, if not overly powerful, waves. But then the afternoon turns onshore and it's a no-go.

The following days, Tuesday the 22nd through to Thursday the 24th, are a mess of strong, lumpy cross-shore winds and choppy conditions, even as the swell tries to build. Not worth it.

Now, the real standout, if you're an experienced surfer, is on Wednesday the 23rd in the afternoon. We get a solid 6ft from the east with a 6-second period. That's going to be a lot of whitewater and a fair bit of power – definitely not for beginners. The combined energy jumps to 293, which is moderate but pushing strong. The wind is a clean cross-offshore from the NE, so it should be rideable. It's still a short period, so it won't be the most lined-up wave, but for pure size and push, this is the best on offer.

After that, the swell hangs around the 3ft to 4ft mark through to Friday the 25th, with clean cross-offshore winds again, but the energy drops off. Saturday the 26th and Sunday the 27th see it fade back to small stuff.

So, for the whole 16 days, the pick is a tough one. If you're a beginner, get out on Sunday the 13th for the clean but small waves. If you're an expert and want some size, circle Wednesday the 23rd afternoon, but be aware that short-period east swell can be a bit lumpy.

Stay safe out there.

Rusty

Short Range Forecast

Moderate rain (total 12mm), heaviest on Sun afternoon. Warm (max 23°C on Sun night, min 16°C on Mon night). Winds decreasing (fresh winds from the NNW on Mon morning, light winds from the ESE by Tue afternoon).

Days 5-7 Weather Summary

Light rain (total 6mm), mostly falling on Thu night. Warm (max 22°C on Thu afternoon, min 18°C on Thu night). Wind will be generally light.

Sun
13
Monday
14
Tuesday
15
Wednesday
16
Thursday
17
Friday
18
Saturday
19
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
1
0
0
1
0
0
0
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)
0.9
SSE
6
0.8
SSE
6
0.4
SE
9
0.4
SE
9
0.4
SE
9
0.4
SE
9
0.6
E
5
0.4
E
5
0.2
ESE
9
0.3
ESE
5
0.3
ESE
6
0.3
SE
13
0.4
ESE
7
0.4
ESE
7
0.2
ESE
9
0.3
SE
12
0.3
SE
12
0.3
SE
12
0.4
ESE
8
1.2
SSW
5
Wave Graph
Metric surfscale
Energy kJ
50
42
28
27
19
29
20
8
8
5
7
25
18
16
7
22
21
21
27
66
Wind (km/h)
15
NW
20
WSW
35
NNW
25
NNW
25
NNE
15
ENE
10
SE
10
S
15
SW
15
SSW
20
SW
20
SW
15
SSW
10
N
25
ENE
15
ESE
5
SE
5
S
20
S
25
S
Wind State
off
cross
off
off
cross-off
cross
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-off
cross
cross-on
on
cross-on
cross-on
cross-on
High Tide
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
2:31PM0.90m
3:07AM0.74m
Low Tide
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
7:03AM0.29m
8:03PM0.32m
rain showers
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
clear
clear
part cloud
mod rain
part cloud
clear
clear
part cloud
part cloud
rain showers
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:28
6:30
6:31
6:31
6:33
6:33
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:02
7:00
6:59
6:58
6:55
6:53
6:52
 mm
12
6
4
Temp °C
22
23
19
23
21
16
17
17
18
19
20
21
22
21
19
20
20
20
21
21
Feels °C
23
25
13
18
14
13
15
15
17
17
18
20
21
22
17
19
20
21
20
20
  • Map Icons:
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  • 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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