Surf Forecasts:
Jetty surf forecast from 28 Jul 2026:
- Best quality surf: Wednesday 29 Jul, 5PM (local time) - 5ft (1.5m), 7s period, SSE swell with offshore winds.
- Most powerful swell: Wednesday 29 Jul, 8PM (local time) - 4.5ft (1.4m), 7s period, SE swell with 206 kJ wave energy.
- Next surfable swell (1★+): Wednesday 29 Jul, 5PM (local time) - 5ft (1.5m), 7s 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 Wednesday (Jul 29) at 5PM. The primary swell is predicted to be 1.5m and 7s period with a secondary swell of 0.9m 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 1.4m 7s and forecast to arrive on Wednesday (Jul 29) at 8PM. Winds are predicted to be offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.6m 5s period and expected on Thursday (Jul 30) at 11PM.
| Wave Type | Time (EDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 5PM (Wed 29th Jul) | 5ft (1.5m) 7s |
| Best Surf | 5PM (Wed 29th Jul) | 5ft (1.5m) 7s |
| Most Powerful | 8PM (Wed 29th Jul) | 4.5ft (1.4m) 7s |
Table - best surf conditions forecast for Jetty over the next 16 days.
The Lowdown
Alright, let’s get into it. The forecast is a bit of a frustrating one for the next couple of weeks. We’ve got some surf coming, but it’s going to be mixed bag with a lot of onshore and cross-onshore winds messing things up. The good news is we’ll see a few windows where it all comes together, so don’t give up hope just yet.
First up, we’ve got a few days of nothing really worth paddling out for. The early part of the week is a write-off. Tuesday and Wednesday are looking poor with small, choppy, cross-onshore junk. The swell is there, but it’s ugly. The combined energy on Wednesday afternoon jumps to 638, which is moderate, but with a short period of 8 seconds and a cross-on wind, it’s messy and lumpy. Not a good time for beginners either, as that swell is riding up to 6ft.
Thursday, the 30th of July, is where things start to look up. The morning shows a clean offshore wind from the north, with a 3ft swell from the SSE. The period is 9 seconds, so it’s got a bit of push, but it’s not a groundswell. The energy is moderate at 178. The wind is gentle offshore, so the waves will be clean. This is a decent, ordinary session, but it’s the best we’ve seen. Friday the 31st of July morning is also okay, with a light cross-offshore breeze and a 2ft SSE swell. The period is 9 seconds, so it’s a bit more lined up. The energy is weak at 82, but it’s clean. The afternoon gets glassy, with a 2ft swell from the SSE. That’s a real treat, but it’s small.
The rest of the first week and into the second week is a real struggle. From Saturday the 1st of August through to the 10th, we’re looking at onshore, cross-onshore, and even cross-shore winds. The swell is tiny, mostly under 3ft, with periods dropping to 4-7 seconds. The energy is weak, often in the double digits. It’s a lot of chop and bump. The only real standout in that whole stretch is Tuesday the 4th of August morning, with a clean cross-offshore breeze and a 3ft swell from the south. The period is short at 7 seconds, so it’s not going to be a classic, but it’s surfable and clean. The energy is weak at 82.
The second week is a real battle. The 11th of August morning shows a 3ft swell from the ENE, but the period is only 6 seconds and the wind is cross-shore. It’s not great. The 12th is even worse.
So, the best on offer is Thursday the 30th of July morning, with that clean offshore wind and a 3ft swell. The break is Jetty, and it’s a breakwater, so it can handle a bit of direction. The swell is coming from the SSE, which is close to the optimum of SSE. It’s a very consistent spot, which is a good thing, but it can get crowded sometimes. The water temperature is 71°F, which is about 1°F cooler than normal for this time of year, so it’s pretty average. That’s the one to aim for.
The rest of the period is a write-off, with a lot of poor conditions. It’s a frustrating run, but the forecasts can change, so keep your eyes peeled.
Rusty
Short Range ForecastHeavy rain (total 27mm), heaviest during Tue night. Warm (max 24°C on Tue afternoon, min 19°C on Wed night). Winds decreasing (fresh winds from the S on Tue afternoon, light winds from the NE by Fri morning). | Days 5-7 Weather SummaryMostly dry. Warm (max 23°C on Fri afternoon, min 21°C on Fri night). Wind will be generally light. | |||||||||||||||||||
Tue 28 | Wednesday 29 | Thursday 30 | Friday 31 | Saturday 1 | Sunday 2 | Monday 3 | ||||||||||||||
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) | S 5 | S 6 | SSE 6 | SSE 7 | SSE 7 | SSE 9 | SSE 8 | S 8 | SSE 8 | S 8 | S 8 | S 8 | S 8 | S 8 | S 7 | S 7 | SE 7 | SSE 7 | SSE 7 | S 7 |
Wave Graph  | ||||||||||||||||||||
 kJ | 66 | 94 | 136 | 204 | 178 | 190 | 87 | 41 | 94 | 64 | 60 | 61 | 42 | 41 | 37 | 26 | 15 | 42 | 79 | 103 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | on | cross | off | off | off | off | off | cross-off | cross-on | cross-on | on | on | cross-on | on | cross-on | on | on | cross-on | cross-off |
High Tide | 7:44PM1.08m | 8:09AM0.89m | 8:25PM1.09m | 8:51AM0.92m | 9:06PM1.09m | 9:31AM0.95m | 9:46PM1.08m | 10:12AM0.98m | 10:26PM1.05m | 10:53AM1.01m | 11:07PM1.01m | 11:36AM1.02m | 11:51PM0.96m | |||||||
Low Tide | 1:42AM0.13m | 1:29PM0.12m | 2:14AM0.09m | 2:11PM0.09m | 2:48AM0.06m | 2:53PM0.07m | 3:24AM0.03m | 3:35PM0.06m | 4:01AM0.02m | 4:19PM0.07m | 4:42AM0.02m | 5:06PM0.09m | ||||||||
 |  |  |  |  | | | |  | |  | | | | | | | | | | |
 | — | — | 5:43 | — | — | 5:43 | — | — | 5:45 | — | — | 5:46 | — | — | 5:47 | — | — | 5:48 | — | — |
 | 8:09 | — | — | 8:08 | — | — | 8:07 | — | — | 8:07 | — | — | 8:06 | — | — | 8:05 | — | — | 8:04 | — |
mm | 1 | 23 | 3 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 24 | 23 | 22 | 23 | 22 | 22 | 22 | 19 | 21 | 23 | 22 | 22 | 23 | 22 | 22 | 23 | 23 | 23 | 23 | 22 |
Feels °C | 22 | 21 | 20 | 22 | 21 | 20 | 19 | 16 | 21 | 24 | 22 | 24 | 23 | 22 | 22 | 24 | 25 | 25 | 24 | 24 |
Swell 1 Height (m) Direction Period (s) | E 6 | S 6 | SSE 6 | SSE 7 | SSE 7 | SSE 9 | SSE 8 | S 8 | SSE 8 | S 8 | S 8 | S 8 | S 8 | S 8 | S 7 | S 7 | S 4 | SSE 7 | SSE 7 | S 7 |
| kJ | 3 | 94 | 136 | 204 | 178 | 190 | 87 | 41 | 94 | 64 | 60 | 61 | 42 | 41 | 37 | 26 | 8 | 42 | 79 | 103 |
Swell 2 Height (m) Direction Period (s) | E 6 | E 6 | E 8 | SSW 7 | SSW 7 | ENE 6 | ESE 6 | SSE 10 | ENE 6 | E 6 | E 6 | E 5 | SE 9 | SE 9 | SE 9 | SE 9 | SE 7 | S 7 | — | — |
| kJ | 3 | 3 | 1 | 75 | 52 | 6 | 10 | 38 | 6 | 3 | 3 | 1 | 3 | 3 | 3 | 3 | 12 | 1 | — | — |
Swell 3 Height (m) Direction Period (s) | E 9 | E 9 | E 8 | — | — | — | ESE 6 | ENE 5 | — | SE 10 | SE 10 | SE 9 | E 5 | E 5 | E 5 | — | S 7 | — | — | — |
| kJ | 7 | 2 | 5 | — | — | — | 6 | 10 | — | 4 | 4 | 3 | 1 | 1 | 1 | — | 15 | — | — | — |
Wind waves Height (m) Direction Period (s) | S 5 | — | — | — | — | WNW 3 | NNE 3 | NE 5 | — | — | SSW 2 | — | SSW 3 | SSW 4 | SSW 4 | S 4 | — | — | SSW 3 | — |
| kJ | 66 | — | — | — | — | 4 | 3 | 17 | — | — | 1 | — | 1 | 4 | 5 | 11 | — | — | 1 | — |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 1742 | 241 | 83 | 0 | 0 | 0 | 0 | 0 | 0 | 40 | 50 | 40 | 73 | 75 | 732 | 1418 | 324 | 278 | 58 | 0 |
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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