Road K Surf Break

Lat Long: 40.83° N 72.51° W

Road K Surf Forecast and Surf Report

Issued: 7 am 14 Aug 2026 (local time)

Forecast update in  hr  min

Today's Road K sea temperature is
24.2° C
1.8° 

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 14 Aug 2026:

  • Best quality surf: Tuesday 18 Aug, 8AM (local time) - 2.5ft (0.8m), 7s period, S swell with cross-offshore winds.
  • Most powerful swell: Monday 17 Aug, 5AM (local time) - 5ft (1.6m), 6s period, S swell with 188 kJ wave energy.
  • Next surfable swell (1★+): Tuesday 18 Aug, 8AM (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 Tuesday (Aug 18) at 8AM. The primary swell is predicted to be 0.8m and 7s period with a secondary swell of 0.1m and 14s. Another secondary swell of 0.5m and 4s 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 1.6m 6s and forecast to arrive on Monday (Aug 17) at 5AM. Winds are predicted to be cross-onshore at the time the swell arrives.

Wave TypeTime (EDT) & Date Wave Height & Period
Next good surf (1 star+) 8AM (Tue 18th Aug)2.5ft (0.8m) 7s
Best Surf 8AM (Tue 18th Aug)2.5ft (0.8m) 7s
Most Powerful 5AM (Mon 17th Aug)5ft (1.6m) 6s

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


The Lowdown

Alright, grab your board and let’s talk about the next couple of weeks. To be honest, it’s looking pretty flat and frustrating out here for a while. We’ve got a solid stretch of small, messy surf ahead, so don’t get your hopes up for anything epic just yet. The first week is pretty much a write-off for any real waves. We’re talking about a run of days with tiny, weak swell and a lot of onshore wind chopping things up. Hang tight, because the second week starts to show a flicker of life.

The water’s sitting around 76°, which is a touch warmer than usual for this time of year – you might not even need a full wetsuit.

Alright, let’s get into it. For the opening days, from Friday the 14th through to Sunday the 16th, it’s just about as bad as it gets. We’ve got swell heights of 0.7ft to 2ft with periods around 9 seconds, but the wind is all over the place. Friday morning has a slight offshore breeze, but the swell energy is weak (20-25). By the afternoon, the wind swings onshore and it’s choppy. The weekend is more of the same – tiny, weak surf and poor conditions. There’s just nothing to ride. This is a good time to wax the board and fix that ding, because you won’t be needing it.

By Monday the 17th, things start to wake up a little. The swell pushes up to 6ft out of the SSE, and the combined energy jumps to a moderate 361. Monday morning has a cross-offshore breeze making it clean, but the period is a short 7 seconds, so it’s going to be a bit crumbly and weak. This is the first actual surf of the period, but it's still pretty poor, just an ordinary day. The afternoon cleans up with an offshore wind, but the swell drops to 4ft.

Tuesday the 18th and Wednesday the 19th are back to being pretty poor, with weak swell and a cross-onshore wind making a mess of things on Wednesday. We’re still in that first week, and it’s not looking good. The swell energy is weak, and the wind is not your friend.

Thursday the 20th is a real tease. We see a 4ft swell from the south, with a clean cross-offshore wind in the morning. The combined energy is a moderate 140. It’s surfable, but it’s still pretty ordinary. It’s the best of a bad week, but it’s not something to get amped about.

The next stretch, from Friday the 21st through to Tuesday the 26th, is a dead zone. The swell drops out again, the wind is bad, and there is just nothing doing. The period around the 22nd sees some storm-risk and onshore winds, producing poor surf. It’s a long, flat grind.

Then, things take a turn for the better. Starting Wednesday the 27th of August, we get a push of longer period swell. The energy starts to build, with a moderate 115 on the 27th afternoon. It’s not big, but the period stretches out to 12-13 seconds, which means it’s got some push. By Friday the 28th, the morning has a light cross-shore wind and 2ft of swell with a 10-second period, but the real story is the afternoon. A fresh 22 mph offshore wind from the NNW will groom things nicely, and the energy is a moderate 111.

Finally, the standout of the whole run looks to be Saturday morning, August 29th. We’ve got a moderate offshore breeze from the NNW, clean conditions, and while the swell is still small at 2ft, the period is a solid 9 seconds, and the energy is moderate. It’s got a bit more juice to it. The afternoon sees a long-period 12-second swell from the SSE, and with a clean cross-offshore wind, it will be glassy. This is the day to be out there.

So, mark your calendar for that last Saturday. It’s not a giant swell, but it might be the cleanest and most rideable waves we see in the whole 16 days. The rest of the week after that looks like a drop off again, but those couple of days at the end are your best bet. It’s a long, slow burn but there is a light at the end of the tunnel.

Stay patient out there.

Rusty

Short Range Forecast

Light rain (total 8mm), mostly falling on Sun night. Warm (max 25°C on Fri afternoon, min 20°C on Fri night). Winds increasing (calm on Fri afternoon, strong winds from the SE by Sun night).

Days 4-6 Weather Summary

Moderate rain (total 12mm), heaviest on Mon morning. Warm (max 26°C on Wed night, min 20°C on Mon night). Winds decreasing (strong winds from the ESE on Mon morning, calm by Tue afternoon).

Friday
14
Saturday
15
Sunday
16
Monday
17
Tuesday
18
Wednesday
19
Thursday
20
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
0
0
0
0
0
0
0
0
0
0
0
1
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)
0.3
SE
9
0.3
SE
9
0.2
ESE
9
0.3
SE
9
0.2
ESE
9
0.2
S
6
0.2
ESE
9
0.7
S
4
1.5
S
6
1.3
S
6
1
S
6
0.7
SSE
7
0.7
SSE
7
0.8
SSE
7
0.7
SSE
7
0.6
SSE
7
0.6
SE
7
1
S
5
0.9
SSW
5
0.8
SSW
5
0.4
ESE
8
Wave Graph
Metric surfscale
Energy kJ
13
13
8
13
8
3
7
14
143
127
74
47
45
53
41
30
28
47
46
35
27
Wind (km/h)
10
N
20
SSW
20
NE
10
NE
15
SSE
10
WSW
10
SE
25
SSW
35
SSE
35
ENE
30
NNE
15
NNE
10
N
10
SSW
15
SSW
25
S
30
S
35
SSW
20
NNW
20
NW
25
NNE
Wind State
off
cross-on
cross-off
cross-off
on
cross
on
cross-on
on
cross
cross-off
cross-off
cross-off
cross-on
cross-on
cross-on
cross-on
cross-on
off
cross-off
cross-off
High Tide
9:20AM1.12m
9:40PM1.18m
10:07AM1.12m
10:26PM1.12m
10:53AM1.11m
11:12PM1.04m
11:39AM1.07m
11:58PM0.96m
12:27PM1.02m
00:46AM0.87m
1:17PM0.98m
1:39AM0.80m
2:13PM0.94m
2:38AM0.76m
Low Tide
3:03PM0.00m
3:31AM-0.02m
3:47PM0.03m
4:08AM0.02m
4:30PM0.08m
4:45AM0.06m
5:14PM0.15m
5:24AM0.12m
6:01PM0.21m
6:06AM0.17m
6:52PM0.27m
6:53AM0.22m
7:48PM0.31m
clear
clear
rain showers
clear
clear
clear
clear
part cloud
mod rain
rain showers
part cloud
part cloud
clear
clear
clear
clear
clear
rain showers
thunderstorm
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:58
5:58
6:00
6:01
6:01
6:03
6:03
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:50
7:47
7:46
7:45
7:44
7:43
7:40
 mm
1
7
8
4
1
Temp °C
24
25
25
21
23
23
22
24
23
21
21
20
21
24
24
24
24
26
24
27
25
Feels °C
24
25
25
20
21
21
22
21
21
16
18
18
22
24
24
24
22
26
26
24
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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