Road K Surf Break

Lat Long: 40.83° N 72.51° W

Road K Surf Forecast and Surf Report

Issued: 7 am 20 Jul 2026 (local time)

Forecast update in  hr  min

Today's Road K sea temperature is
21.8° C
0.1° 

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 Jul 2026:

  • Best quality surf: Wednesday 22 Jul, 11PM (local time) - 8ft (2.5m), 10s period, S swell with offshore winds.
  • Most powerful swell: Wednesday 22 Jul, 11PM (local time) - 8ft (2.5m), 10s period, S swell with 1,223 kJ wave energy.
  • Next surfable swell (1★+): Monday 20 Jul, 11AM (local time) - 2.5ft (0.8m), 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 Monday (Jul 20) at 11AM. The primary swell is predicted to be 0.8m and 7s period with a secondary swell of 0.1m and 12s. 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 2.5m 10s and forecast to arrive on Wednesday (Jul 22) at 11PM. Winds are predicted to be 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 Thursday (Jul 23) at 5AM.

Wave TypeTime (EDT) & Date Wave Height & Period
Next good surf (1 star+)11AM (Mon 20th Jul)2.5ft (0.8m) 7s
Best Surf11PM (Wed 22nd Jul)8ft (2.5m) 10s
Most Powerful11PM (Wed 22nd Jul)8ft (2.5m) 10s

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


The Lowdown

Alright, Rusty here. Let’s have a look at what’s coming up for Road K. It’s a bit of a slow start, and we’ve got some waiting to do.

The first half of this outlook is pretty grim. From Monday the 20th right through to Thursday the 23rd, it’s either onshore, messy, or just plain ugly. There’s a bit of swell around, but the wind is ruining it. Expect a lot of poor surf conditions and a lot of sitting on the beach. The combined swell energy is weak to moderate at best, with values like 76, 156, and 576, but the wind is the killer.

The first real light at the end of the tunnel arrives on Thursday morning, the 23rd of July. We get a clean 7ft S swell with a 9-second period, and the wind is a beautiful offshore from the NW. The combined energy is strong at 670. This is your best window of the whole forecast. The break is a sandbar, very consistent, exposed to the south swell, and the wind is going to make it smooth. It’s got a beginner-friendly rating, but that 7ft swell will be a bit much for true learners. The water temperature is 71°, which is pretty much bang on average for this time of year.

The afternoon of the 23rd holds up with a 6ft S swell and light cross-offshore wind, still clean. Then Friday the 24th morning goes glassy with a small 3ft SE swell, but the energy is weak (145), so it’s a small, clean board day.

After that, we slide back into a long stretch of poor conditions. From Saturday the 25th all the way through to Saturday the 1st of August, it’s a mix of onshore winds, cross-shore chop, and weak, short-period swell. The combined energy often sits under 100, like 81, 71, and 84. There’s a big gap here with no real quality.

Then, on Sunday the 2nd of August, we get a promising return. The morning shows a 6ft SSW swell, 7-second period, with a light cross-offshore wind from the WNW. The combined energy is moderate at 297. It’s clean, and it’s a good sign. The afternoon bumps up to 7ft, but the wind goes cross-shore, making it a bit lumpy – still surfable for the keen ones.

The real standout is Thursday morning, July 23rd. That’s the one to circle on the calendar. 7ft S swell, offshore NW wind, clean, and strong energy. It’s not a monster, but it’s the best of a very average run.

So, to sum it up: the first week is a write-off until Thursday the 23rd. That’s your best bet. After that, there’s a long dry spell until the 2nd of August offers something decent again. Keep your eyes on that Thursday morning.

Rusty.

Short Range Forecast

Heavy rain (total 40mm), heaviest during Tue night. Warm (max 26°C on Wed afternoon, min 18°C on Wed night). Winds increasing (calm on Mon morning, strong winds from the SW by Tue night).

Days 4-6 Weather Summary

Mostly dry. Warm (max 24°C on Thu afternoon, min 17°C on Thu morning). Mainly fresh winds.

Monday
20
Tuesday
21
Wednesday
22
Thursday
23
Friday
24
Saturday
25
Sunday
26
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
0
0
0
0
0
0
0
3
3
2
0
0
0
0
0
0
0
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)
0.8
S
7
0.7
S
7
0.7
S
7
1.1
S
5
1.6
SSE
6
2
S
8
2
S
8
2.4
S
8
2.5
S
10
1.7
S
9
1.5
S
8
1
S
8
0.8
S
8
1
SE
7
1
SE
8
0.9
ESE
7
0.9
ESE
7
0.9
SE
7
0.9
SE
8
0.8
SE
8
0.8
SE
8
Wave Graph
Metric surfscale
Energy kJ
70
48
46
59
171
458
562
800
1201
450
309
127
72
96
116
96
93
77
93
73
69
Wind (km/h)
5
NNE
15
S
25
S
30
SSE
30
SSE
40
SW
25
SW
25
SSW
30
N
25
NNW
5
WNW
15
SE
15
E
20
ESE
15
ENE
20
ENE
20
ESE
15
NNE
5
ENE
15
S
15
SSW
Wind State
glassy
cross-on
cross-on
on
on
cross-on
cross
cross-on
off
off
glassy
on
cross
cross-on
cross
cross
cross-on
cross-off
cross-off
cross-on
cross-on
High Tide
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
5:58AM0.78m
6:19PM1.02m
Low Tide
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
11:06AM0.22m
00:43AM0.22m
clear
clear
clear
cloud
rain showers
thunderstorm
part cloud
clear
thunderstorm
clear
clear
clear
clear
clear
clear
part cloud
clear
clear
clear
clear
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:35
5:35
5:35
5:37
5:37
5:39
5:39
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
8:16
8:15
8:15
8:14
8:14
8:13
8:12
 mm
2
36
2
Temp °C
21
23
22
22
24
24
24
26
26
20
24
24
21
22
20
20
22
20
20
22
22
Feels °C
21
21
20
20
23
23
23
25
25
16
22
22
19
20
17
16
18
18
18
20
20
  • 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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