Jetty Surf Break

Lat Long: 40.79° N 72.66° W

Jetty Surf Forecast and Surf Report

Issued: 1 am 19 Aug 2026 (local time)

Forecast update in  hr  min

Today's Jetty sea temperature is
23.9° C
1.8° 

Jetty surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.


Jetty surf forecast from 19 Aug 2026:

  • Best quality surf: Monday 24 Aug, 2AM (local time) - 3ft (0.9m), 6s period, SSE swell with offshore winds.
  • Most powerful swell: Monday 24 Aug, 2AM (local time) - 3ft (0.9m), 6s period, SSE swell with 52 kJ wave energy.
  • Next surfable swell (1★+): Monday 24 Aug, 2AM (local time) - 3ft (0.9m), 6s period with SSE swell.

Best Forecast Surf Conditions for Jetty this week:

The surf forecast for Jetty over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Monday (Aug 24) at 2AM. The primary swell is predicted to be 0.9m and 6s period with a secondary swell of 0.2m and 7s. The wind is predicted to be offshore as the swell arrives.

The most powerful waves expected at Jetty in the next 16 days are 0.9m 6s and forecast to arrive on Monday (Aug 24) at 2AM. Winds are predicted to be offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.3m 2s period and expected on Monday (Aug 24) at 2PM.

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

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


The Lowdown

Alright, grab a coffee, this is going to be a tough read. Looking at the Jetty forecast, it's a pretty bleak run for the next couple weeks. We got a lot of days where the swell is just pathetic and the wind is doing us no favors. You’re gonna be checking the cam and just shaking your head.

The start of this period is dead. Wednesday the 19th and Thursday the 20th have waves under 2 feet with short, weak periods. The energy is in the weak zone, reading around 38 to 56. It's basically a lake out there with some chops on it. Not even worth the walk down.

Friday the 21st and Saturday the 22nd continue the misery. Still tiny, 1-foot slop, with cross-shore winds that will chop it to pieces. Energy readings stay weak, between 31 and 44. There’s just nothing to get excited about.

Now, Sunday the 23rd is the first glimmer of hope. The morning looks clean with about 3 feet of SSE swell and a light offshore wind. The energy bumps up to 97, which is still on the weak side, but it's clean. If you have a log, this is your chance to get some little crumbly ones. The period is a short 6 seconds, so it will be soft.

Monday the 24th is similar, with a clean morning around 2 feet. The afternoon sees the swell push up to 3 feet, but the wind goes cross-shore and messes it up. The energy is up to 120, which is our first moderate reading, but the wind kills it.

Then it goes flat again. From Tuesday the 25th through Thursday the 27th, we're looking at tiny, weak surf. The energy readings are all over the place between 31 and 167. The 27th has a longer period at 12 seconds, but the swell height is still small. It's like the ocean is teasing you.

Alright, let's talk about the one day that matters. Friday the 28th. The morning is looking like the best of the entire period. We got 4 to 4 feet of S swell with a 10-second period and a cross-offshore wind. The combined energy is up to 310, which is the strongest we've seen. It won't be a huge day, but it will be clean and have some punch. This is your standout. The afternoon backs off a bit to 3 feet, but it's still clean. Mark your calendar for this one.

The weekend after that fades fast. Saturday the 29th and Sunday the 30th go right back to sub-2-foot slop with cross-onshore winds. The energy drops back down to the 30 to 88 range. It's back to square one.

The start of September shows some long-period swell, but it's tiny. There are 15-second intervals on the 1st, but with only 1-foot waves. And on the very last day, the 2nd, we see a pulse to 3 feet, but with a junk 5-second period. It's clean in the morning, but the short period won't give it any power. That's a long way out, so it's just a "wait and see."

So, my honest advice? Get out on Sunday morning for some longboard waves, but don't expect much. The real day to wait for is Friday the 28th. That's the one that has the best combination of size, period, and clean winds. Everything else is just a hold-your-breath situation. This is Rusty, out.

Short Range Forecast

Mostly dry. Warm (max 26°C on Wed afternoon, min 20°C on Fri morning). Wind will be generally light.

Days 4-6 Weather Summary

Light rain (total 6mm), mostly falling on Sat afternoon. Warm (max 26°C on Mon afternoon, min 20°C on Sat night). Wind will be generally light.

Wednesday
19
Thursday
20
Friday
21
Saturday
22
Sunday
23
Monday
24
Tuesday
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)
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
0
0
0
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)
0.6
SSE
6
0.6
SSE
6
0.6
SSE
6
0.5
SE
7
0.4
SE
7
0.4
SE
8
0.4
SE
8
0.4
SE
8
0.4
ESE
8
0.4
SE
8
0.6
E
5
0.6
E
5
0.3
ESE
7
0.6
SE
6
0.9
SSE
6
0.7
S
6
0.6
S
6
0.4
SE
11
0.3
SE
11
0.3
SE
11
0.3
SE
11
Wave Graph
Metric surfscale
Energy kJ
26
24
22
21
12
18
18
18
26
16
15
16
10
26
52
40
30
30
19
18
18
Wind (km/h)
5
WNW
20
SSW
15
SW
15
W
5
N
10
NNW
15
NNE
10
ESE
10
E
25
E
30
ENE
15
NNE
5
E
10
SSW
15
NNW
10
W
15
W
10
NE
10
ESE
20
SSE
15
SSE
Wind State
glassy
cross-on
cross-on
cross-off
off
off
cross-off
cross-on
cross-on
cross
cross
cross-off
cross-on
cross-on
off
cross-off
cross-off
cross-off
cross-on
on
on
High Tide
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
5:32AM0.80m
5:52PM1.01m
6:18AM0.86m
6:36PM1.05m
Low Tide
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
10:39AM0.26m
00:01AM0.24m
11:35AM0.21m
00:35AM0.18m
clear
clear
clear
part cloud
cloud
clear
part cloud
part cloud
part cloud
part cloud
light rain
part cloud
cloud
part cloud
rain showers
clear
clear
part cloud
part cloud
clear
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:03
6:05
6:05
6:07
6:07
6:09
6:09
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:43
7:42
7:39
7:38
7:37
7:36
7:34
 mm
4
2
Temp °C
25
26
25
25
22
22
21
23
23
21
21
21
21
22
23
22
26
25
22
23
24
Feels °C
26
25
25
25
23
23
19
22
23
20
20
19
23
23
24
22
23
23
22
21
25
  • 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 Jetty Surf forecast

The above surf forecast table for Jetty provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Jetty can be found by selecting the local surf guide option on the grey menu. Our Jetty 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 (Jetty) 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 Jetty 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.

Jetty is 15 km (9 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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