Surf Forecasts:
Jetty surf forecast from 25 Jul 2026:
- Best quality surf: Sunday 26 Jul, 2AM (local time) - 3ft (0.9m), 7s period, ESE swell with cross-offshore winds.
- Most powerful swell: Wednesday 29 Jul, 8AM (local time) - 7ft (2.1m), 7s period, SE swell with 408 kJ wave energy.
- Next surfable swell (1★+): Sunday 26 Jul, 2AM (local time) - 3ft (0.9m), 7s period with ESE 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 Sunday (Jul 26) at 2AM. The primary swell is predicted to be 0.9m and 7s period. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Jetty in the next 16 days are 2.1m 7s and forecast to arrive on Wednesday (Jul 29) at 8AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.3m 3s period and expected on Thursday (Jul 30) at 8AM.
| Wave Type | Time (EDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 2AM (Sun 26th Jul) | 3ft (0.9m) 7s |
| Best Surf | 2AM (Sun 26th Jul) | 3ft (0.9m) 7s |
| Most Powerful | 8AM (Wed 29th Jul) | 7ft (2.1m) 7s |
Table - best surf conditions forecast for Jetty over the next 16 days.
The Lowdown
Alright, Rusty here again. Gotta level with you – this outlook is a tough one. Over the next 16 days, there's really only one moment worth getting wet for, and that's way out on Monday, August 3rd. Everything before that? Dead flat, messy, and not worth a second look.
Right now through the end of July and into the first few days of August, it's all tiny, weak, short-period swells out of the ESE and SSE, with cross and cross-onshore breezes. Swell heights are barely pushing 2 to 3 feet, and the combined swell energy is sitting in the 50s and 70s for most of that – that's nearly zero push. It's just powerless, choppy junk. Don't bother.
Now let's talk about that one bright spot. Monday morning, August 3rd. Swell picks up to around 4ft from the SSE with a 9-second period, so it's not a groundswell but it's got some shape. Combined energy jumps to 268 – that's moderate, solid for this setup. The wind turns light north at around 3 mph, damn near glassy, and perfectly offshore for Jetty. Water temp is a comfortable 71°F, right about average for this time of year. Jetty is a breakwater that breaks pretty consistently and can handle a bit of size, but it's exposed to the swell and crowds do show up when conditions line up. This Monday morning window is the only time the forecast says "expect good surf conditions" – so that's your window.
Monday afternoon the wind swings southwest, goes cross-onshore, and the quality drops. Tuesday the 4th still has some size – up to around 5ft in the afternoon – but the winds aren't as clean, and the forecast calls it "marginal." So the play is simple: Monday morning, August 3rd, at Jetty. Be there early before it gets messy.
After that, it's back to the same story. From Wednesday the 5th onward, swells drop under 3 feet, combined energy falls into the 30s and 40s, and it's mostly onshore and choppy again. Even Friday the 7th brings a clean NW offshore breeze, but with only a couple feet of short-period S swell, there's no power to make it fun.
So here's the bottom line: a long dry run with a single Monday morning to aim for. Mark it on your calendar, hope the models hold, and get out there when it's clean. Rusty out.
Short Range ForecastMostly dry. Warm (max 22°C on Mon night, min 19°C on Sat night). Wind will be generally light. | Days 4-6 Weather SummaryModerate rain (total 13mm), heaviest on Tue night. Warm (max 23°C on Tue afternoon, min 18°C on Thu morning). Winds decreasing (fresh winds from the NNE on Wed night, light winds from the S by Thu night). | ||||||||||||||||||||
Saturday 25 | Sunday 26 | Monday 27 | Tuesday 28 | Wednesday 29 | Thursday 30 | Friday 31 | |||||||||||||||
AM | 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) | ESE 7 | ESE 7 | ESE 7 | ESE 8 | ESE 8 | SE 8 | SE 7 | SE 7 | SE 7 | SE 8 | SSE 5 | SSE 6 | SE 7 | SE 7 | ENE 6 | ENE 7 | SSE 9 | SSE 9 | SSE 9 | S 8 | S 8 |
Wave Graph  | |||||||||||||||||||||
 kJ | 111 | 78 | 81 | 72 | 74 | 57 | 54 | 54 | 34 | 45 | 42 | 127 | 244 | 217 | 150 | 150 | 99 | 220 | 132 | 90 | 86 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross-on | cross-off | cross | cross-on | glassy | cross-on | cross-on | cross-on | on | on | cross-on | cross | cross-off | cross-off | cross-off | cross | cross-on | cross | cross-on | cross-on |
High Tide | 5:34PM0.99m | 5:58AM0.78m | 6:19PM1.02m | 6:44AM0.82m | 7:03PM1.05m | 7:27AM0.85m | 7:44PM1.08m | 8:09AM0.89m | 8:25PM1.09m | 8:51AM0.92m | 9:06PM1.09m | 9:31AM0.95m | 9:46PM1.08m | ||||||||
Low Tide | 10:13AM0.23m | 00:06AM0.26m | 11:06AM0.22m | 00:43AM0.22m | 11:58AM0.20m | 1:12AM0.17m | 12:45PM0.16m | 1:42AM0.13m | 1:29PM0.12m | 2:14AM0.09m | 2:11PM0.09m | 2:48AM0.06m | 2:53PM0.07m | 3:24AM0.03m | |||||||
 | |  | | | | |  | | | |  |  | |  | | |  |  | | | |
 | 5:39 | — | — | 5:41 | — | — | 5:41 | — | — | 5:41 | — | — | 5:43 | — | — | 5:43 | — | — | 5:45 | — | — |
 | — | 8:13 | — | — | 8:12 | — | — | 8:10 | — | — | 8:09 | — | — | 8:08 | — | — | 8:07 | — | — | 8:07 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | 3 | 2 | 4 | 4 | — | — | — | 2 | — | 1 |
Temp °C | 21 | 21 | 21 | 20 | 21 | 21 | 20 | 21 | 22 | 22 | 23 | 23 | 22 | 21 | 21 | 20 | 23 | 21 | 23 | 23 | 23 |
Feels °C | 19 | 18 | 19 | 17 | 19 | 19 | 19 | 19 | 20 | 21 | 22 | 23 | 23 | 20 | 19 | 17 | 21 | 21 | 23 | 21 | 24 |
Swell 1 Height (m) Direction Period (s) | SE 7 | ESE 7 | ESE 7 | ESE 8 | ESE 8 | SE 8 | SE 7 | SE 7 | SE 7 | SE 8 | SE 7 | — | SE 7 | SE 7 | E 6 | ENE 7 | SSE 9 | SSE 9 | SSE 9 | S 8 | S 8 |
| kJ | 71 | 78 | 81 | 72 | 74 | 57 | 54 | 54 | 34 | 45 | 33 | — | 244 | 217 | 94 | 75 | 99 | 220 | 132 | 90 | 86 |
Swell 2 Height (m) Direction Period (s) | S 6 | S 5 | — | — | S 6 | — | — | S 6 | E 6 | E 6 | E 6 | — | E 7 | E 5 | S 7 | SSE 8 | E 7 | E 6 | E 6 | E 6 | E 7 |
| kJ | 1 | 1 | — | — | 3 | — | — | 3 | 6 | 3 | 3 | — | 1 | 20 | 70 | 65 | 42 | 12 | 7 | 3 | 4 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | S 6 | — | — | — | — | E 7 | E 9 | SSE 9 | — | SE 11 | — | SE 10 | SE 9 | SE 10 |
| kJ | — | — | — | — | — | — | — | 2 | — | — | — | — | 1 | 2 | 54 | — | 31 | — | 4 | 3 | 4 |
Wind waves Height (m) Direction Period (s) | ESE 7 | — | — | — | — | — | — | — | S 3 | S 4 | SSE 5 | SSE 6 | — | — | ENE 6 | ENE 7 | — | — | — | — | — |
| kJ | 111 | — | — | — | — | — | — | — | 2 | 8 | 42 | 127 | — | — | 150 | 150 | — | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 58 | 283 | 0 | 58 | 1632 | 14 | 872 | 1742 | 123 | 393 | 317 | 117 | 58 | 58 | 58 | 58 | 88 | 62 | 4 | 97 | 73 |
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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