Road K Surf Break

Lat Long: 40.83° N 72.51° W

Road K Surf Forecast and Surf Report

Issued: 7 am 14 Sep 2026 (local time)

Forecast update in  hr  min

Today's Road K sea temperature is
21.4°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 14 Sep 2026:

  • Best quality surf: Friday 18 Sep, 8AM (local time) - 1ft (0.3m), 12s period, SE swell with cross-offshore winds.
  • Most powerful swell: Monday 21 Sep, 2PM (local time) - 6ft (1.8m), 7s period, E swell with 277 kJ wave energy.
  • Next surfable swell (1★+): Friday 18 Sep, 8AM (local time) - 1ft (0.3m), 12s 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 Friday (Sep 18) at 8AM. The primary swell is predicted to be 0.3m and 12s period with a secondary swell of 0.4m and 6s. Another secondary swell of 0.6m and 4s is also forecast. 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 1.8m 7s and forecast to arrive on Monday (Sep 21) at 2PM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.8m 5s period and expected on Tuesday (Sep 15) at 5AM.

Wave TypeTime (EDT) & Date Wave Height & Period
Next good surf (1 star+) 8AM (Fri 18th Sep)1ft (0.3m) 12s
Best Surf 8AM (Fri 18th Sep)1ft (0.3m) 12s
Most Powerful 2PM (Mon 21st Sep)6ft (1.8m) 7s

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


The Lowdown

Alright folks, Rusty here. Let's talk about what's on the menu for the next couple of weeks.

First up, I gotta be straight with you: this is a tough stretch. We've got a long, dry spell on our hands. For a solid five days, from Monday the 14th right through to Friday the 18th of September, you’d be better off waxing your board and staring at it than trying to paddle out. The wave energy is barely registering (50), with tiny 1ft SE windswell and a fresh northerly breeze making things messy. The water is sitting at about 71°, which is a touch warmer than usual for this time of year, but that's the only good news.

Things start to look a little less bleak on Friday the 18th. The morning is still tiny at 1ft from the ESE, but it's clean with a light offshore breeze. The afternoon is the first real tease of the whole outlook: 1.0ft of long-period SE swell (12 seconds) and a glassy surface. It’s small, sure, but that's as good as it gets for a while. This is a true beginner zone (Road K), and for a total rookie, you could get a couple of rides. The combined energy is still weak (42).

Then, we get another big gap. Saturday the 19th and Sunday the 20th are basically write-offs again with messy onshore winds. The swell does show a pulse on Sunday morning with 3ft from the SSW (106), but the winds are all wrong.

The real story here is the middle of the second week. Monday the 21st through to Wednesday the 23rd of September sees a solid swell pulse. We’re looking at 6ft to 7ft of ESE swell. The combined wave energy jumps into the strong category (545 on Wednesday morning). But here's the heartbreaker: it's accompanied by onshore and cross-shore winds, making for choppy, lumpy, poor conditions. At this size, it's too much for beginners anyway, but with the wind, it’s a total mess for everyone. A setup like this, with that much wind and power, starts looking a lot more interesting for kite surfing than paddle surfing, to be honest.

Thursday the 24th offers a brief moment of hope in the afternoon. The swell drops to a more manageable 5ft from the ESE, the wind swings light, and conditions clean up a little. The energy is still strong (326), but it's a marginal window.

The very end of the outlook, on Monday the 28th of September, offers another small window. We get 3ft of SE swell with a light offshore wind in the morning, turning glassy by the afternoon. The energy is moderate (141). It's not a standout by any stretch, but it's clean.

Honestly, the best you can hope for are those glassy windows on the 18th afternoon and the 28th. The big swell in the middle of the run is a classic case of "if only the wind was right." Keep an eye on it, but don't hold your breath.

Rusty.

Short Range Forecast

Mostly dry. Warm (max 22°C on Mon afternoon, min 15°C on Tue morning). Winds decreasing (fresh winds from the NNW on Mon morning, light winds from the S by Tue night).

Days 4-6 Weather Summary

Light rain (total 3mm), mostly falling on Fri night. Warm (max 26°C on Fri afternoon, min 20°C on Thu morning). Winds increasing (calm on Fri afternoon, fresh winds from the SW by Sat night).

Monday
14
Tuesday
15
Wednesday
16
Thursday
17
Friday
18
Saturday
19
Sunday
20
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
0
0
0
0
0
0
0
0
0
1
1
0
0
0
0
0
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)
0.4
SE
9
0.4
SE
9
0.4
ESE
8
0.8
ENE
5
0.6
E
5
0.4
ESE
5
0.4
ESE
5
0.3
ESE
7
0.6
ESE
8
0.5
E
8
0.5
E
7
0.4
ESE
7
0.4
ESE
6
0.3
SE
12
0.3
SE
12
0.3
SE
12
0.4
SE
9
1
SSW
4
1
SSW
6
0.8
SSW
6
1.4
ENE
6
Wave Graph
Metric surfscale
Energy kJ
28
27
28
37
21
8
8
10
40
29
28
15
14
22
21
21
20
39
60
50
135
Wind (km/h)
35
NNW
30
NNW
30
NNE
20
ENE
10
ESE
5
S
10
SSW
20
SSW
15
WSW
10
SSW
20
SSW
25
WSW
10
NNW
5
WSW
15
SE
20
ESE
20
SE
35
SW
20
NNE
20
NE
10
NE
Wind State
off
off
cross-off
cross
cross-on
cross-on
cross-on
cross-on
cross
cross-on
cross-on
cross
off
glassy
on
cross-on
on
cross-on
cross-off
cross-off
cross-off
High Tide
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
3:33PM0.90m
4:08AM0.77m
Low Tide
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
8:04AM0.31m
9:09PM0.31m
part cloud
clear
clear
clear
clear
clear
part cloud
clear
clear
clear
clear
part cloud
part cloud
clear
rain showers
part cloud
part cloud
rain showers
thunderstorm
part cloud
part cloud
<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
6:35
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:00
6:59
6:58
6:55
6:53
6:52
6:51
 mm
1
2
2
Temp °C
20
22
21
15
17
16
17
19
21
21
21
22
23
26
25
20
22
22
22
18
18
Feels °C
13
16
14
12
15
14
17
17
21
21
19
20
24
27
26
17
20
20
23
16
16
  • 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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