Road K Surf Break

Lat Long: 40.83° N 72.51° W

Road K Surf Forecast and Surf Report

Issued: 1 pm 17 Aug 2026 (local time)

Forecast update in  hr  min

Today's Road K sea temperature is
24.2° C
2.0° 

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 18 Aug 2026:

  • Best quality surf: Tuesday 18 Aug, 2AM (local time) - 3ft (0.9m), 6s period, SSE swell with cross-offshore winds.
  • Most powerful swell: Monday 24 Aug, 8PM (local time) - 3.5ft (1.0m), 7s period, S swell with 94 kJ wave energy.
  • Next surfable swell (1★+): Tuesday 18 Aug, 2AM (local time) - 3ft (0.9m), 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 Tuesday (Aug 18) at 2AM. The primary swell is predicted to be 0.9m and 6s period. 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 1.0m 7s and forecast to arrive on Monday (Aug 24) 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 0.9m 4s period and expected on Friday (Aug 21) at 2PM.

Wave TypeTime (EDT) & Date Wave Height & Period
Next good surf (1 star+) 2AM (Tue 18th Aug)3ft (0.9m) 6s
Best Surf 2AM (Tue 18th Aug)3ft (0.9m) 6s
Most Powerful 8PM (Mon 24th Aug)3.5ft (1.0m) 7s

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


The Lowdown

G'day, Rusty here. Look, I’ve got to be straight with you—this 16-day window for Road K is a pretty dire stretch. There are no real standouts, no days where you’d be itching to get the wetsuit on. The setup is a sandbar, exposed to swell from the SSE, and it's very consistent, but the quality just isn't there. The water is a touch warmer than normal for this time of year, sitting at 76°F.

We start off with something on Monday, August 17th. Monday afternoon has a 4ft swell from the SSE with a short 6-second period and moderate wave energy (130). The wind is a cross-off from the NNE at 9 mph, so it’s surfable but very ordinary. Honestly, it’s a bit of a flop.

Tuesday morning, the 18th, drops to 3ft from the SSE, 7-second period, low energy (82). The wind is light from the NE, clean but tiny. Tuesday afternoon gets worse—cross-on wind from the SW at 6 mph, still only 3ft, and the commentary says "poor surf conditions."

Wednesday, the 19th, morning is glassy with 2ft from the SE, 7-second period, and weak energy (61). It’s clean but tiny. Wednesday afternoon goes cross-on from the S at 9 mph and choppy. Thursday, the 20th, is a write-off with 2ft and 1ft, poor conditions.

From Friday, the 21st, through to the end of the month, it’s a long, grim run of tiny swell and poor surf conditions. Most days have swell heights under 3ft, short periods, and the wind is either cross, cross-on, or too strong. There’s a brief moment on Monday, August 24th, with a morning offshore wind from the NNW at 9 mph, and a 3ft swell from the S with a 7-second period, moderate energy (117). It’s clean, but still only a 1 out of 10 score. Not something to get excited about.

The last week of August and into September is all tiny, weak, and messy. Swell heights drop to 1ft, periods are 8 seconds, and the wind is strong and cross-off or cross. The combined energy is pitiful, often in the 20-50 range. There’s a bit of a bump in energy on the 27th and 28th of August, with 3ft swell from the SE and longer periods (12 seconds), but the wind is a strong cross-shore mess, making it "poor surf conditions." Even the 28th of August afternoon has a cleaner look with a 3ft SSW swell and 6-second period, moderate energy (138), but again, the quality is terrible.

The bottom line: there’s nothing worth paddling out for here. The sandbar is very consistent, but when the swell is this weak and the wind is never truly favourable, it’s a bust. If you’re a kite surfer, the stronger wind days later in the period might look interesting, but for a paddle surfer, it’s a no-go. Stay patient, mate. The forecasts can change, but for now, it’s a proper blank run.

Rusty.

Short Range Forecast

Mostly dry. Warm (max 27°C on Wed afternoon, min 21°C on Tue morning). Wind will be generally light.

Days 5-7 Weather Summary

Heavy rain (total 29mm), heaviest during Sun morning. Warm (max 25°C on Thu afternoon, min 17°C on Fri night). Winds increasing (calm on Thu night, fresh winds from the NNE by Fri afternoon).

Mon
17
Tuesday
18
Wednesday
19
Thursday
20
Friday
21
Saturday
22
Sunday
23
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
0
1
1
0
0
0
0
0
0
0
0
0
0
0
0
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)
1.1
SSE
6
0.9
SSE
6
0.9
SSE
7
0.9
SSE
7
0.8
SSE
7
0.6
SE
7
0.6
SE
7
0.5
SE
9
0.5
SE
7
0.4
SE
7
0.4
SE
7
0.4
SE
8
0.9
ENE
5
1
ENE
5
1
E
5
0.9
E
6
0.8
E
5
0.9
E
5
0.3
SE
12
0.6
S
7
Wave Graph
Metric surfscale
Energy kJ
92
75
75
84
59
33
30
39
27
12
16
18
37
56
57
52
34
34
23
32
Wind (km/h)
15
NNE
15
NNE
5
NE
10
SW
10
W
0
W
15
S
15
SSW
10
W
20
SSW
5
SSE
10
E
35
NNE
20
NE
25
ENE
25
E
20
E
25
NE
15
ENE
10
N
Wind State
cross-off
cross-off
cross-off
cross-on
cross-off
glassy
cross-on
cross-on
cross-off
cross-on
glassy
cross
cross-off
cross-off
cross
cross
cross
cross-off
cross
cross-off
High Tide
11:58PM0.96m
12:27PM1.02m
00:46AM0.87m
1:17PM0.98m
1:39AM0.80m
2:13PM0.94m
2:38AM0.76m
3:12PM0.92m
3:41AM0.74m
4:11PM0.94m
4:40AM0.76m
5:04PM0.97m
Low Tide
5:14PM0.15m
5:24AM0.12m
6:01PM0.21m
6:06AM0.17m
6:52PM0.27m
6:53AM0.22m
7:48PM0.31m
7:44AM0.26m
8:52PM0.33m
8:39AM0.28m
10:06PM0.32m
9:39AM0.28m
11:16PM0.29m
clear
part cloud
clear
clear
clear
clear
clear
part cloud
part cloud
rain showers
thunderstorm
rain showers
light rain
part cloud
clear
clear
part cloud
heavy rain
mod rain
light rain
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:01
6:03
6:03
6:05
6:05
6:07
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:45
7:44
7:43
7:40
7:39
7:37
7:37
 mm
1
7
8
2
11
7
2
Temp °C
24
22
22
25
25
24
27
26
26
25
24
23
20
17
19
21
20
18
19
21
Feels °C
28
23
24
27
26
26
27
26
27
27
26
26
17
12
16
18
16
15
19
24
  • 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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