Road K Surf Break

Lat Long: 40.83° N 72.51° W

Road K Surf Forecast and Surf Report

Issued: 7 pm 19 Aug 2026 (local time)

Forecast update in  hr  min

Today's Road K sea temperature is
23.6° C
1.5° 

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 20 Aug 2026:

  • Best quality surf: Thursday 20 Aug, 5AM (local time) - 1.5ft (0.5m), 9s period, SE swell with cross-offshore winds.
  • Most powerful swell: Monday 24 Aug, 5AM (local time) - 3.5ft (1.0m), 6s period, S swell with 84 kJ wave energy.
  • Next surfable swell (1★+): Thursday 20 Aug, 5AM (local time) - 1.5ft (0.5m), 9s 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 Thursday (Aug 20) at 5AM. The primary swell is predicted to be 0.5m and 9s period with a secondary swell of 0.3m and 6s. Another secondary swell of 0.3m and 5s 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 1.0m 6s and forecast to arrive on Monday (Aug 24) at 5AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.5m 4s period and expected on Thursday (Aug 20) at 11PM.

Wave TypeTime (EDT) & Date Wave Height & Period
Next good surf (1 star+) 5AM (Thu 20th Aug)1.5ft (0.5m) 9s
Best Surf 5AM (Thu 20th Aug)1.5ft (0.5m) 9s
Most Powerful 5AM (Mon 24th Aug)3.5ft (1.0m) 6s

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


The Lowdown

G'day, I'm Rusty. Let's have a look at what's on the cards for the next couple of weeks.

Look, I'll be straight with you – the first week is a tough slog. There's a lot of poor surf conditions and tiny waves, so you'll be doing more waiting than riding. The biggest gap is from now until Thursday the 22nd of August, with nothing worth paddling out for. Things stay pretty average right through until the morning of Friday the 28th of August.

That Friday morning, the 28th of August, is the standout. Road K is a sandbar break and it's very consistent, so it fires up when the swell hits. We're looking at a clean 5ft swell from the SSE with a period of 7 seconds, and the wind is a light offshore from the NE. The wave energy is moderate at 244. It's a beginner-friendly spot, which is spot on for this size. Just keep in mind the crowds are often here, so expect some company. This is the best on offer, no question.

The rest of the period is a write-off. Saturday the 29th of August has a morning clean up with 3ft from the S and 175 energy, but it's weak and ordinary. Then from Sunday the 30th of August right through to the end of the window, it's all poor surf with messy onshore winds and tiny waves. Even the 4ft ESE swell on Friday the 4th of September is rated marginal, with a short 8-second period and cross-off wind, so it's nothing to get excited about.

In short, pencil in the morning of Friday the 28th of August at Road K for a fun session. After that, the forecast looks poor, but it won't stay this way forever – forecasts can change.

Rusty.

Short Range Forecast

Heavy rain (total 58mm), heaviest during Sat morning. Warm (max 25°C on Wed night, min 19°C on Thu night). Winds increasing (light winds from the NW on Thu morning, fresh winds from the E by Sat morning).

Days 5-7 Weather Summary

Moderate rain (total 11mm), heaviest on Sat night. Warm (max 24°C on Sun night, min 18°C on Sat night). Wind will be generally light.

Thursday
20
Friday
21
Saturday
22
Sunday
23
Monday
24
Tuesday
25
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
1
0
0
0
1
0
0
1
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)
0.5
SE
9
0.5
SE
7
0.4
SE
7
0.4
ESE
8
0.4
SE
8
0.4
SE
8
1
E
5
0.4
ESE
8
0.6
SSE
5
0.9
SSE
5
0.8
SSE
5
0.9
SSE
6
1
S
6
0.9
S
6
0.9
SSE
6
0.9
S
6
0.5
S
7
0.4
SE
10
0.7
SSW
5
Wave Graph
Metric surfscale
Energy kJ
39
25
12
27
18
18
45
21
17
44
33
53
81
68
68
62
22
28
23
Wind (km/h)
15
SW
5
NW
20
NNW
5
N
15
NE
15
ESE
20
ESE
20
SE
10
NNE
15
NE
10
E
10
ESE
20
NNW
20
W
20
W
15
NNW
20
WNW
15
SW
5
WNW
Wind State
cross-on
off
off
off
cross-off
cross-on
cross-on
cross-on
cross-off
cross-off
cross
cross-on
off
cross-off
cross-off
off
cross-off
cross
cross-off
High Tide
1:39AM0.80m
2:13PM0.94m
2:38AM0.76m
3:12PM0.92m
3:41AM0.74m
4:11PM0.94m
4:40AM0.76m
5:04PM0.97m
5:32AM0.80m
5:52PM1.01m
6:18AM0.86m
6:36PM1.05m
Low Tide
6:53AM0.22m
7:48PM0.31m
7:44AM0.26m
8:52PM0.33m
8:39AM0.28m
10:06PM0.32m
9:39AM0.28m
11:16PM0.29m
10:39AM0.26m
00:01AM0.24m
11:35AM0.21m
00:35AM0.18m
clear
clear
part cloud
rain showers
clear
clear
rain showers
heavy rain
thunderstorm
light rain
light rain
light rain
thunderstorm
clear
clear
clear
clear
clear
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:03
6:05
6:05
6:07
6:07
6:09
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:43
7:40
7:39
7:37
7:37
7:35
7:34
 mm
3
7
29
19
2
2
3
4
Temp °C
25
24
25
21
21
22
22
21
23
20
20
22
24
22
24
24
20
22
22
Feels °C
25
25
26
18
19
20
21
21
25
21
21
24
23
20
20
20
16
19
19
  • 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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