Surf Forecasts:
Jetty surf forecast from 5 Sep 2026:
- Best quality surf: Friday 11 Sep, 5PM (local time) - 2.5ft (0.7m), 7s period, S swell with offshore winds.
- Most powerful swell: Thursday 10 Sep, 11AM (local time) - 6ft (1.8m), 7s period, SSW swell with 325 kJ wave energy.
- Next surfable swell (1★+): Friday 11 Sep, 5PM (local time) - 2.5ft (0.7m), 7s period with S 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 Friday (Sep 11) at 5PM. The primary swell is predicted to be 0.7m and 7s period with a secondary swell of 0.3m and 3s. The wind is predicted to be offshore as the swell arrives.
The most powerful waves expected at Jetty in the next 16 days are 1.8m 7s and forecast to arrive on Thursday (Sep 10) at 11AM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.4m 3s period and expected on Monday (Sep 07) at 11PM.
| Wave Type | Time (EDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 5PM (Fri 11th Sep) | 2.5ft (0.7m) 7s |
| Best Surf | 5PM (Fri 11th Sep) | 2.5ft (0.7m) 7s |
| Most Powerful | 11AM (Thu 10th Sep) | 6ft (1.8m) 7s |
Table - best surf conditions forecast for Jetty over the next 16 days.
The Lowdown
G’day, Rusty here, and I’ve got a look at the next 16 days. Let’s be straight with you: this is a tough run. The only spot with any recommendations at all is Jetty, and honestly, it’s a real struggle. The first decent surfable window doesn’t even show up until Friday afternoon the 11th, and even then it’s barely a whisper. Before that, we’ve got a dead zone—days of tiny, wind-affected dribble with combined energies under 100 (weak). It’s a long wait.
The water temp at Jetty sits at 71°F, which is about normal for this time of year, nothing weird there.
For the first real standout, you’ve got to look at Thursday morning the 10th. The swell jumps up to 6ft from the SSW, with a combined energy of 521 (moderate wave energy). That’s a decent kick, but the wind is a fresh cross-shore at 19 mph, so it’s going to be lumpy and messy. The swell period is only 7 seconds, so short-period windswell—nothing special. It’s a beach or breakwater setup, so with that size and wind, honestly, this looks more interesting for kite surfing than paddle surfing. It’s going to be a battle.
The real potential, and the only one that gets me a little excited, is Thursday the 17th. Morning brings 8ft from the east, period at 8 seconds, and combined energy of 748 (strong wave energy). Wind is a fresh cross-offshore from the NE at 19 mph, so it’s clean. That’s a solid swell, but 8ft is getting into expert-only territory. The afternoon holds 8ft from the same direction with 870 energy (strong wave energy). The wind is still cross-off, so conditions should be clean, but that’s big for this spot. For a breakwater, a long period isn’t an issue here, but with 8 seconds, it’s just standard windswell. Crowds are sometimes an issue at Jetty, so on a day like this, expect company.
The rest of the second week is a downward slide. Friday the 18th still has some size—7ft in the morning—but the wind swings cross-shore and then cross-onshore, chopping it up. Saturday the 19th drops to 5ft with onshore wind, and by Sunday the 20th it’s back to 2ft and weak. It’s a poor run overall.
So, if you’re determined, aim for Thursday the 17th. It’s the best on offer, but it’s only for the experienced crew. The rest? Save your energy.
Rusty.
Short Range ForecastLight rain (total 2mm), mostly falling on Sat night. Warm (max 25°C on Mon afternoon, min 18°C on Sun morning). Wind will be generally light. | Days 5-7 Weather SummaryLight rain (total 3mm), mostly falling on Thu night. Warm (max 26°C on Thu night, min 20°C on Fri morning). Winds increasing (calm on Tue afternoon, strong winds from the SSW by Wed night). | |||||||||||||||||||
Sat 5 | Sunday 6 | Monday 7 | Tuesday 8 | Wednesday 9 | Thursday 10 | Friday 11 | ||||||||||||||
PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | |
Swell Height Map |  |  |  |  |  |  |  | |||||||||||||
Wave Height (m) Direction Period (s) | SE 8 | E 5 | E 5 | E 6 | ESE 8 | ESE 10 | ESE 10 | ESE 10 | E 9 | SSE 9 | SSE 9 | SW 4 | SSW 5 | SSW 7 | SSW 7 | SSW 7 | S 7 | S 7 | S 7 | S 7 |
Wave Graph  | ||||||||||||||||||||
 kJ | 9 | 32 | 28 | 32 | 19 | 18 | 19 | 18 | 7 | 8 | 7 | 8 | 62 | 230 | 325 | 147 | 94 | 55 | 52 | 21 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | cross | cross | glassy | off | off | cross | cross-off | off | cross-on | cross-on | cross-on | cross-on | cross-on | cross | cross-on | cross | cross-off | off | cross-off |
High Tide | 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 | 8:09AM1.16m | 8:30PM1.16m | |||||||
Low Tide | 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 | 2:04PM0.02m | 2:22AM0.01m | |||||||
 |  | |  |  | | |  | | | |  | | | | |  | | | | |
 | — | — | 6:20 | — | — | 6:22 | — | — | 6:22 | — | — | 6:24 | — | — | 6:24 | — | — | 6:26 | — | — |
 | 7:16 | — | — | 7:15 | — | — | 7:13 | — | — | 7:12 | — | — | 7:09 | — | — | 7:07 | — | — | 7:07 | — |
mm | — | 2 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 3 | — | — | — |
Temp °C | 24 | 22 | 18 | 19 | 20 | 21 | 25 | 24 | 22 | 24 | 23 | 23 | 23 | 23 | 24 | 24 | 26 | 22 | 24 | 21 |
Feels °C | 24 | 20 | 15 | 19 | 18 | 17 | 23 | 21 | 20 | 23 | 21 | 22 | 20 | 18 | 20 | 21 | 23 | 19 | 21 | 16 |
Swell 1 Height (m) Direction Period (s) | E 6 | E 5 | ESE 7 | E 6 | ESE 8 | ESE 10 | ESE 10 | ESE 10 | SSW 4 | SSE 9 | SSE 9 | SSE 9 | SE 10 | ESE 9 | SSW 7 | SE 9 | S 7 | S 7 | S 7 | S 7 |
| kJ | 7 | 32 | 10 | 32 | 19 | 18 | 19 | 18 | 2 | 8 | 7 | 7 | 15 | 8 | 183 | 13 | 94 | 55 | 52 | 21 |
Swell 2 Height (m) Direction Period (s) | SE 8 | S 6 | S 6 | S 6 | SSE 9 | SSE 9 | SSE 8 | — | E 9 | E 9 | E 9 | E 8 | E 8 | E 9 | SE 9 | — | SE 10 | SE 10 | ENE 3 | E 5 |
| kJ | 9 | 3 | 2 | 2 | 8 | 8 | 7 | — | 7 | 6 | 2 | 1 | 1 | 2 | 13 | — | 15 | 15 | 2 | 8 |
Swell 3 Height (m) Direction Period (s) | SSW 5 | SE 8 | SE 9 | SE 9 | S 6 | S 5 | S 5 | SSE 8 | SSE 8 | S 6 | S 5 | SE 10 | — | — | — | — | — | — | SE 10 | SE 11 |
| kJ | 3 | 2 | 3 | 3 | 2 | 1 | 1 | 7 | 7 | 1 | 1 | 4 | — | — | — | — | — | — | 16 | 18 |
Wind waves Height (m) Direction Period (s) | — | — | E 5 | — | — | — | — | — | — | SSW 6 | SSW 3 | SW 4 | SSW 5 | SSW 7 | SSW 7 | SSW 7 | NNE 3 | — | NE 4 | ENE 5 |
| kJ | — | — | 28 | — | — | — | — | — | — | 3 | 1 | 8 | 62 | 230 | 325 | 147 | 1 | — | 3 | 9 |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 2533 | 221 | 65 | 14 | 14 | 14 | 50 | 50 | 356 | 3285 | 522 | 584 | 1008 | 1406 | 305 | 97 | 118 | 4 | 0 | 114 |
Best forecast wave conditions in Long Island New York | ||||||||||||||||||||
Best forecast wave conditions in United States | ||||||||||||||||||||
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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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