Road K Surf Break

Lat Long: 40.83° N 72.51° W

Road K Surf Forecast and Surf Report

Issued: 1 pm 17 Jul 2026 (local time)

Forecast update in  hr  min

Today's Road K sea temperature is
23.0° C
1.3° 

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 18 Jul 2026:

  • Best quality surf: Thursday 23 Jul, 2AM (local time) - 5.5ft (1.7m), 9s period, S swell with offshore winds.
  • Most powerful swell: Wednesday 22 Jul, 5PM (local time) - 8ft (2.5m), 9s period, SSW swell with 1,119 kJ wave energy.
  • Next surfable swell (1★+): Sunday 19 Jul, 2PM (local time) - 3.5ft (1.1m), 7s 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 2PM. The primary swell is predicted to be 1.1m and 7s 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 2.5m 9s and forecast to arrive on Wednesday (Jul 22) at 5PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.5m 3s period and expected on Sunday (Jul 19) at 11AM.

Wave TypeTime (EDT) & Date Wave Height & Period
Next good surf (1 star+) 2PM (Sun 19th Jul)3.5ft (1.1m) 7s
Best Surf 2AM (Thu 23rd Jul)5.5ft (1.7m) 9s
Most Powerful 5PM (Wed 22nd Jul)8ft (2.5m) 9s

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


The Lowdown

Alright folks, Rusty here. Let’s get into it. We’re looking at a pretty grim stretch ahead for Road K. The next few days are a write-off, so don’t bother waxing up just yet.

The first time we might see something that’s not a total disaster is Sunday morning, July 19th. The swell is coming from the SSW at 4ft, and the wind is finally offshore from the NW at 19 mph. The water is a touch warmer than normal for this time of year at 73°. The combined energy is moderate (154). The sets should be clean, but the wave quality is still just poor. It’s something, but nothing to get excited about.

Sunday afternoon drops off a bit, with the swell down to 3ft, still from the S, and the offshore wind easing. The energy is down to moderate (112). It’s surfable, but ordinary.

Monday morning, July 20th is a real tease. The swell is only 3ft from the S, with an 8-second period, and the wind is glassy. The water is still a touch warmer than normal. The energy is weak (82). It’s glassy clean, but the size is just too small for any real fun. It’s more of a paddle than a surf.

The biggest swell of the whole run hits Wednesday, July 22nd. We’re looking at 8ft from the S, with a 9-second period, and the energy is very strong (834). But the wind is a fresh cross-onshore, and it’s lumpy. The wave comment says “poor surf conditions.” This size is for experts only, and with that wind, it’s a washing machine. Honestly, this setup looks more interesting for kite surfing than paddle surfing.

Thursday morning, July 23rd is your best bet. A 4ft swell from the S, with a 9-second period, and a gentle offshore from the NW at 9 mph. The energy is moderate (238). The comment says “expect good surf conditions.” This is a window of clean, decent waves. Crowds are often at Road K, so expect company.

After that, it’s a long, dry spell of small, onshore, or choppy junk right through to the end of the month. There’s a tiny window on Tuesday morning, July 28th with a 4ft S swell and cross-offshore wind, but the energy is weak (87) and the period is a short 5 seconds. It’s clean but weak.

Then Tuesday afternoon, July 28th throws up a 7ft swell from the SW, with a 7-second period and strong energy (631). But the wind is onshore and the comment is “marginal.” Again, big and messy.

The final decent-looking window is Thursday morning, July 30th with a small 3ft S swell, a 7-second period, and a gentle offshore wind. The energy is weak (78). It’s clean but tiny.

So, the standout is Thursday morning, July 23rd. That’s the one day where the wind, size, and energy line up. The rest is a whole lot of nothing or a whole lot of mess.

Rusty.

Short Range Forecast

Heavy rain (total 20mm), heaviest during Sat afternoon. Warm (max 26°C on Fri afternoon, min 19°C on Sun night). Winds decreasing (strong winds from the SW on Sat night, calm by Mon morning).

Days 5-7 Weather Summary

Moderate rain (total 18mm), heaviest on Tue afternoon. Warm (max 26°C on Wed night, min 19°C on Thu morning). Winds increasing (light winds from the SSE on Mon afternoon, fresh winds from the SW by Tue night).

Fri
17
Saturday
18
Sunday
19
Monday
20
Tuesday
21
Wednesday
22
Thursday
23
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
1
0
1
0
0
0
0
0
0
0
2
2
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
S
5
0.5
S
5
0.7
SSW
4
0.7
S
4
1.5
SSW
6
1.2
SSW
7
1
S
7
0.8
S
7
0.8
S
8
0.8
S
8
0.8
S
7
1
SSE
5
1.2
SSE
6
1.1
SE
6
2.3
S
9
2.5
SSW
9
1.7
S
9
1.1
S
8
0.9
S
8
0.8
SE
7
Wave Graph
Metric surfscale
Energy kJ
14
12
17
19
165
147
106
64
74
72
69
45
87
69
828
1119
450
169
108
60
Wind (km/h)
20
SSW
20
SW
25
SSW
30
S
35
SW
30
NNW
20
NNW
20
NNE
5
SSE
20
SSE
20
SSE
30
SSE
30
SSE
35
SW
30
SW
25
SW
15
NNW
15
NW
20
NW
20
NNW
Wind State
cross-on
cross-on
cross-on
cross-on
cross-on
off
off
cross-off
glassy
on
on
on
on
cross
cross-on
cross-on
off
off
cross-off
off
High Tide
10:54PM1.15m
11:26AM1.05m
11:43PM1.07m
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
Low Tide
4:09PM0.03m
4:45AM-0.01m
4:59PM0.08m
5:28AM0.04m
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
part cloud
clear
part cloud
heavy rain
mod rain
clear
clear
clear
clear
clear
clear
part cloud
light rain
thunderstorm
thunderstorm
thunderstorm
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:33
5:33
5:35
5:35
5:35
5:37
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
8:19
8:17
8:16
8:16
8:15
8:15
8:14
 mm
11
9
4
8
3
3
Temp °C
26
24
25
22
23
22
26
24
21
23
22
22
22
23
23
24
26
20
23
23
Feels °C
24
20
23
20
22
17
22
21
20
20
19
19
19
22
22
24
26
18
19
19
  • 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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