Road K Surf Break

Lat Long: 40.83° N 72.51° W

Road K Surf Forecast and Surf Report

Issued: 1 am 19 Jul 2026 (local time)

Forecast update in  hr  min

Today's Road K sea temperature is
21.8° C
0.0° 

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 19 Jul 2026:

  • Best quality surf: Thursday 23 Jul, 5PM (local time) - 4.5ft (1.4m), 9s period, S swell with cross-offshore winds.
  • Most powerful swell: Wednesday 22 Jul, 8PM (local time) - 10ft (3.0m), 10s period, S swell with 1,433 kJ wave energy.
  • Next surfable swell (1★+): Sunday 19 Jul, 11AM (local time) - 3.5ft (1.0m), 6s period with S 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 (Jul 19) at 11AM. The primary swell is predicted to be 1.0m and 6s period with a secondary swell of 0.1m and 13s. The wind is predicted to be offshore as the swell arrives.

The most powerful waves expected at Road K in the next 16 days are 3.0m 10s and forecast to arrive on Wednesday (Jul 22) at 8PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.4m 3s period and expected on Sunday (Jul 19) at 11AM.

Wave TypeTime (EDT) & Date Wave Height & Period
Next good surf (1 star+)11AM (Sun 19th Jul)3.5ft (1.0m) 6s
Best Surf 5PM (Thu 23rd Jul)4.5ft (1.4m) 9s
Most Powerful 8PM (Wed 22nd Jul)10ft (3.0m) 10s

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 what’s shaping up for Road K over the next couple of weeks. I’ll be straight with you – it’s not looking like a classic run, but there are a few moments worth keeping an eye on.

First up, the coming days are pretty grim. We’re looking at a stretch of poor conditions right through the first week, with hardly anything worth paddling out for. The swell is small and weak, with combined energy sitting around the 80 to 154 mark, and the wind is mostly onshore or cross-shore. Not a lot to get excited about.

The first real glimmer comes on Monday morning, July 20th. It’s not big – just 3 ft of S swell – but the wind will be glassy, with a light NNE breeze at 3 mph. That’s clean, smooth water, and the period is a short 8 seconds, so it’ll be a bit weak, but for a beginner-friendly sandbar (Road K), it’s a nice little window for a few gentle waves. Combined energy is low at 80, so don’t expect power, but it’s surfable.

Then we hit a bit of a bump mid-week. Wednesday July 22nd sees a jump in size – 7 ft from the S, with a period of 8 seconds and combined energy of 698 – that’s moderate wave energy. But the wind is cross-shore from the WSW at 16 mph, and the wave comment says “poor surf conditions.” That’s a messy, choppy setup. For the more experienced, it might offer some punch, but it’s not clean.

Thursday July 23rd morning is a bit better. The swell drops to 5 ft from the S, period 9 seconds, combined energy 404 (moderate). The wind is offshore from the N at 12 mph, giving clean-ish conditions. It’s a cross-offshore wind, so it’s workable, but the wave comment says “marginal.” Still, it’s the best of a rough week for the more advanced crew.

After that, it’s back to small, weak, and generally poor until the very end of the forecast. The last week drags with tiny swells – mostly under 3 ft – and onshore winds. There’s a brief moment on Sunday morning August 2nd with 4 ft from the S, period 6 seconds, combined energy 106 (weak), and a light WNW cross-offshore breeze at 6 mph. It’s clean but small and weak. Worth a splash if you’re desperate.

And finally, Monday morning August 3rd offers a tiny 2 ft from the E, period 6 seconds, combined energy 55 (weak), but it’s glassy with a WNW breeze at 3 mph. Perfect for a beginner to get wet, but not much more.

So, the standout here is Monday July 20th morning – glassy, clean, and small, ideal for a beginner or a rusty longboarder. The only other real option is Sunday August 2nd morning for a clean, weak wave. The rest is a write-off.

Rusty.

Short Range Forecast

Moderate rain (total 14mm), heaviest on Tue night. Warm (max 26°C on Sun afternoon, min 19°C on Sun night). Wind will be generally light.

Days 4-6 Weather Summary

Light rain (total 5mm), mostly falling on Wed morning. Warm (max 26°C on Wed afternoon, min 18°C on Wed night). Winds decreasing (fresh winds from the SW on Wed morning, light winds from the N by Thu night).

Sunday
19
Monday
20
Tuesday
21
Wednesday
22
Thursday
23
Friday
24
Saturday
25
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
1
1
1
1
0
0
0
0
0
0
1
2
2
2
2
1
0
0
1
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)
1
S
6
0.8
SSW
6
0.9
S
8
0.8
S
8
0.7
S
7
0.7
S
7
0.9
SSE
4
1.1
SSE
5
2.1
S
7
2
S
8
2.4
S
9
2.4
S
10
1.9
S
9
1.4
S
9
1.1
S
8
0.8
S
8
0.7
S
7
0.8
SE
8
0.7
SE
7
0.7
SE
7
0.7
SE
7
Wave Graph
Metric surfscale
Energy kJ
78
45
95
72
50
51
25
64
478
533
963
1115
601
297
161
76
52
82
52
48
51
Wind (km/h)
25
NNW
20
NW
20
N
5
NNE
15
S
15
SSE
25
SE
25
S
25
SSW
30
SW
20
SW
25
WNW
25
NNW
15
W
10
N
10
NW
10
SSW
15
WSW
15
N
10
WSW
20
N
Wind State
off
off
off
glassy
on
on
on
on
cross-on
cross
cross
cross-off
off
cross-off
off
off
cross-on
cross
off
cross
off
High Tide
12:15PM1.03m
00:32AM0.98m
1:06PM1.00m
1:23AM0.90m
2:00PM0.97m
2:18AM0.83m
2:55PM0.95m
3:16AM0.78m
3:51PM0.95m
4:14AM0.76m
4:45PM0.97m
5:08AM0.76m
5:34PM0.99m
Low Tide
5:51PM0.15m
6:12AM0.09m
6:45PM0.20m
6:56AM0.14m
7:43PM0.25m
7:42AM0.19m
8:45PM0.29m
8:30AM0.22m
9:55PM0.30m
9:20AM0.23m
11:10PM0.28m
10:13AM0.23m
00:06AM0.26m
clear
clear
clear
clear
clear
part cloud
part cloud
light rain
thunderstorm
thunderstorm
thunderstorm
clear
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:33
5:35
5:35
5:35
5:37
5:37
5:39
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
8:16
8:16
8:15
8:15
8:14
8:14
8:13
 mm
1
13
3
2
Temp °C
22
26
25
21
23
22
23
24
23
24
26
25
18
24
23
20
24
23
22
26
25
Feels °C
20
22
23
20
20
19
21
24
23
23
26
22
14
21
21
19
22
20
20
25
24
  • 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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