Road K Surf Break

Lat Long: 40.83° N 72.51° W

Road K Surf Forecast and Surf Report

Issued: 7 am 29 Jul 2026 (local time)

Forecast update in  hr  min

Today's Road K sea temperature is
21.5° C
0.8° 

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 29 Jul 2026:

  • Best quality surf: Thursday 30 Jul, 11AM (local time) - 4ft (1.2m), 9s period, SSE swell with offshore winds.
  • Most powerful swell: Thursday 30 Jul, 11AM (local time) - 4ft (1.2m), 9s period, SSE swell with 217 kJ wave energy.
  • Next surfable swell (1★+): Wednesday 29 Jul, 5PM (local time) - 4.5ft (1.3m), 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 Wednesday (Jul 29) at 5PM. The primary swell is predicted to be 1.3m and 6s period with a secondary swell of 0.1m and 8s. The wind is predicted to be glassy as the swell arrives.

The most powerful waves expected at Road K in the next 16 days are 1.2m 9s and forecast to arrive on Thursday (Jul 30) at 11AM. Winds are predicted to be offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.5m 3s period and expected on Thursday (Jul 30) at 11PM.

Wave TypeTime (EDT) & Date Wave Height & Period
Next good surf (1 star+) 5PM (Wed 29th Jul)4.5ft (1.3m) 6s
Best Surf11AM (Thu 30th Jul)4ft (1.2m) 9s
Most Powerful11AM (Thu 30th Jul)4ft (1.2m) 9s

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


The Lowdown

Alright folks, Rusty here. Let's have a look at the only game in town for the next couple of weeks.

We’re focusing on Road K, a sandbar set-up that’s very consistent but exposed to the swell. It's a picky spot, needing that SSE direction to light up. The water is sitting at 70.7°, which is about 1.4° cooler than usual for this time of year, so pretty much what you'd expect for late July. The outlook is a mixed bag, with a lot of onshore chop and wind drama for the next week.

The pattern starts with poor conditions on Wednesday the 29th. A risk of thunderstorms and a 15 mph cross-on SW wind will make the 4.6ft SE swell a messy, choppy affair. The combined energy is weak to moderate at 234. That afternoon the wind goes glassy, but the swell drops to 4.3ft from the SSE with a short 6-second period, making for very ordinary, weak waves. Not worth a paddle.

Thursday the 30th is the first real highlight. The morning brings a light 6 mph NNW offshore wind, cleaning up a 3.9ft SSE swell with a 9-second period. The combined energy is a moderate 223, and the wave comment says "expect good surf conditions." This is a genuine window for a clean, lined-up session. The wind holds offshore through the afternoon, but it picks up to 15 mph, making it a bit more challenging.

Friday the 31st is a step down. The morning has a 3.0ft SSE swell with a 9-second period, but the wind is a cross-off 6 mph NW, keeping it clean but small. The energy is 149. The afternoon turns ugly with a 12 mph cross-on ruining the 2.6ft waves.

From Saturday the 1st of August all the way through to Saturday the 8th, the forecast is a real grind. It's a long stretch of poor surf. The winds are predominantly cross-on, onshore, or too strong, and the swell periods are short and gutless. The combined energy values are mostly in the double digits or low triple digits, telling you the wave power is weak. You’d be fighting a losing battle against the chop. There’s a brief clean moment on the morning of Tuesday the 5th, but with a 2.0ft SSW swell and a 6-second period, the energy is a measly 48—barely a ripple.

The next real standout comes from the 9th of August. Sunday the 9th is looking proper. The morning has a 5.6ft SSW swell, driven by a 6 mph offshore NW wind, leaving it glassy and clean. The combined energy jumps to 274, and the wave comment is positive. The afternoon is even better, with the swell bumping up to 6.6ft from the SSW, a 9 mph cross-off WNW wind, and a strong combined energy of 394. This is a solid, powerful swell with clean conditions. Keep in mind, at 6.6ft, it’s getting serious for the beginners, but for the experienced crew, this is the best on offer.

Monday the 10th of August keeps the size at 6.6ft, but the wind goes cross-shore and the energy blows out to a very strong 677. The commentary flags it as marginal, likely due to the wind direction or tide. It’s a powerful swell, but you’ll need to be picky.

The final few days from the 11th to the 13th of August see the swell drop back down into the 3.3ft range, with periods between 7-8 seconds. The winds are a mix of offshore and cross-off, keeping things clean, but the energy levels are moderate at best. It’s a return to average, ordinary conditions.

So, the standout sessions are the morning of Thursday the 30th of July for a clean, smaller wave, and the main event looks to be Sunday the 9th of August, with a strong 6.6ft SSW swell and clean offshore winds. That’s your window to score.

Short Range Forecast

Heavy rain (total 27mm), heaviest during Wed morning. Warm (max 23°C on Wed morning, min 19°C on Thu morning). Mainly fresh winds.

Days 4-6 Weather Summary

Heavy rain (total 22mm), heaviest during Sun night. Warm (max 25°C on Mon night, min 22°C on Sat night). Winds increasing (light winds from the SW on Sat morning, fresh winds from the SSW by Mon morning).

Wednesday
29
Thursday
30
Friday
31
Saturday
1
Sunday
2
Monday
3
Tuesday
4
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
1
1
2
0
1
1
0
0
0
0
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)
1.4
SE
7
1.3
SSE
6
1.3
SSE
7
1.2
SSE
9
1.1
SSE
8
0.8
SSE
8
0.9
SSE
9
0.8
SSE
8
0.5
SSE
10
0.7
S
8
0.9
S
8
0.7
S
8
1.2
S
5
1.3
S
6
0.9
S
7
0.7
SSE
7
1.2
SSE
7
1.2
S
8
1
S
7
0.9
S
7
0.6
S
7
Wave Graph
Metric surfscale
Energy kJ
178
132
183
217
149
79
143
90
51
63
93
57
68
108
74
38
160
163
106
77
33
Wind (km/h)
25
SW
0
NNW
15
N
10
NNW
25
N
20
N
10
NW
20
SSW
20
SW
15
SW
25
SSW
20
SSW
25
S
25
S
30
S
35
SSW
25
SW
15
NW
10
NW
20
SW
15
WSW
Wind State
cross-on
glassy
off
off
off
off
cross-off
cross-on
cross-on
cross-on
cross-on
cross-on
on
on
cross-on
cross-on
cross
off
cross-off
cross-on
cross
High Tide
8:09AM0.89m
8:25PM1.09m
8:51AM0.92m
9:06PM1.09m
9:31AM0.95m
9:46PM1.08m
10:12AM0.98m
10:26PM1.05m
10:53AM1.01m
11:07PM1.01m
11:36AM1.02m
11:51PM0.96m
12:23PM1.03m
00:40AM0.91m
Low Tide
1:29PM0.12m
2:14AM0.09m
2:11PM0.09m
2:48AM0.06m
2:53PM0.07m
3:24AM0.03m
3:35PM0.06m
4:01AM0.02m
4:19PM0.07m
4:42AM0.02m
5:06PM0.09m
5:26AM0.03m
5:58PM0.12m
thunderstorm
thunderstorm
part cloud
light rain
rain showers
part cloud
clear
clear
clear
part cloud
cloud
part cloud
rain showers
rain showers
mod rain
light rain
thunderstorm
thunderstorm
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:43
5:43
5:45
5:46
5:46
5:47
5:48
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
8:08
8:07
8:07
8:06
8:05
8:04
8:01
 mm
21
1
3
2
1
1
10
5
2
3
Temp °C
23
23
23
19
20
19
21
23
23
24
24
23
24
24
24
23
24
25
23
26
26
Feels °C
22
23
26
18
20
16
21
22
23
24
23
21
22
23
23
22
24
25
23
24
23
  • 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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