Jetty Surf Break

Lat Long: 40.79° N 72.66° W

Jetty Surf Forecast and Surf Report

Issued: 1 pm 04 Sep 2026 (local time)

Forecast update in  hr  min

Today's Jetty sea temperature is
21.7°C
0.8° 

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


Jetty surf forecast from 4 Sep 2026:

  • Most powerful swell: Thursday 10 Sep, 11AM (local time) - 6.5ft (2.0m), 7s period, SSW swell with 406 kJ wave energy.

Best Forecast Surf Conditions for Jetty this week:

The most powerful waves expected at Jetty in the next 16 days are 2.0m 7s and forecast to arrive on Thursday (Sep 10) at 11AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.0m 6s period and expected on Friday (Sep 11) at 5PM.

Wave TypeTime (EDT) & Date Wave Height & Period
Next good surf (1 star+)--
Best Surf--
Most Powerful11AM (Thu 10th Sep)6.5ft (2.0m) 7s

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


The Lowdown

Righto, Rusty here. Look, I’m gonna level with you. The next 16 days are a bit of a tough stretch for us at Jetty. We’ve got a solid, very consistent break here – exposed to the swell, best when it’s coming from the SSE – but it’s just not lining up. The first week is pretty much a write-off for any proper surf. There’s a long gap from now until the 10th of September where you’re just not going to get a ride worth paddling out for.

The week starts off small, with weak energy. On Friday the 4th, we’re looking at a tiny 1ft swell from the SE, with a short period of 8 seconds. The combined energy is a measly 33 (weak). It’s clean-ish with a light cross-off breeze, but there’s just nothing to push you along. Saturday and Sunday are similar, with even smaller 1.0ft to 2ft swell and energy staying well under 50. The wind stays mostly cross-off or cross, so it’s tidy, but the waves are barely there.

The real kicker hits on Wednesday the 9th. The wind gets nasty. On Wednesday afternoon, we get a 25 mph cross-on from the SSW whipping up a messy 4ft swell. The energy climbs to 101 (moderate), but the conditions are pure chaos. That’s kite-surfing territory, not paddle surfing.

Then, finally, on Thursday morning the 10th, we get a spike. A 7ft swell from the SSW, with a period of 7 seconds, and the combined energy jumps to 605 (strong). The wind is a clean cross-off from the WNW. This is, by a long shot, the best on offer. That 7ft is a fair size, a bit much for beginners, but for the experienced crew, it’s the standout. The water temp is about 71°, which is pretty average for this time of year, so nothing unusual there.

After that burst, it drops off quickly. The rest of the 10th and into the 11th, we’re back to weak, small energy. We get a glimpse of something on the 12th with a 3ft swell from the E, but the energy is low (73-84) and the period is a poor 6 seconds. It’s surfable, but ordinary.

The second week, from the 13th onwards, is a real snooze. Persistent onshore and cross-onshore winds from the SSW and SSE keep the conditions choppy and messy. Swell heights hang around 2ft to 3ft, all with short periods and weak energy. The water temp anomaly is normal, but the surf is just not there. The 18th and 19th show a slight bump in energy (129-157), but it’s still cross-on and choppy.

So, the bottom line: mark your calendar for Thursday morning, the 10th of September. That’s your one shot. A clean 7ft SSW swell with solid energy. Everything else you can sleep in for.

Rusty.

Short Range Forecast

Some drizzle, heaviest during Sat night. Warm (max 28°C on Fri afternoon, min 18°C on Sat night). Wind will be generally light.

Days 5-7 Weather Summary

Some drizzle, heaviest during Wed night. Warm (max 25°C on Mon afternoon, min 21°C on Tue morning). Winds increasing (light winds from the NW on Tue morning, strong winds from the SW by Wed night).

Fri
4
Saturday
5
Sunday
6
Monday
7
Tuesday
8
Wednesday
9
Thursday
10
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
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)
0.4
SE
8
0.3
SE
8
0.3
SE
8
0.3
SE
8
0.7
E
6
0.6
E
7
0.6
E
7
0.4
E
10
0.3
ESE
10
0.3
ESE
9
0.3
E
9
0.2
E
9
0.2
E
9
0.5
SW
4
0.7
SW
5
1.3
SSW
5
1.8
SSW
7
2
SSW
7
1.1
S
7
0.7
S
7
Wave Graph
Metric surfscale
Energy kJ
23
10
9
9
31
32
35
30
18
17
16
7
7
10
24
91
295
406
131
43
Wind (km/h)
10
WNW
20
NNW
20
N
20
E
15
ENE
15
NE
10
WSW
15
N
20
NNW
10
W
15
WNW
10
NW
15
SW
15
SW
25
SW
40
SSW
45
SW
30
WNW
25
NW
30
NNW
Wind State
cross-off
off
cross-off
cross
cross
cross-off
cross
off
off
cross-off
cross-off
cross-off
cross-on
cross
cross-on
cross-on
cross
cross-off
cross-off
off
High Tide
2:28AM0.83m
3:04PM1.06m
3:39AM0.85m
4:11PM1.08m
4:45AM0.90m
5:12PM1.12m
5:44AM0.98m
6:07PM1.15m
6:35AM1.05m
6:58PM1.18m
7:24AM1.11m
7:45PM1.18m
Low Tide
7:40PM0.19m
7:46AM0.15m
8:52PM0.20m
8:55AM0.17m
10:10PM0.18m
10:09AM0.16m
11:24PM0.13m
11:22AM0.12m
00:22AM0.08m
12:27PM0.07m
1:08AM0.04m
1:19PM0.04m
1:47AM0.01m
clear
clear
clear
part cloud
rain showers
clear
part cloud
clear
clear
clear
clear
clear
clear
part cloud
cloud
part cloud
rain showers
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:20
6:20
6:22
6:22
6:24
6:24
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:17
7:16
7:15
7:13
7:12
7:09
7:07
 mm
1
1
Temp °C
28
27
21
24
20
19
21
21
21
25
24
22
24
24
23
23
24
25
25
21
Feels °C
27
26
18
23
18
16
20
19
17
22
20
21
22
21
22
20
20
23
19
16
  • 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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