Surf Forecasts:
Jetty surf forecast from 25 Aug 2026:
- Best quality surf: Friday 28 Aug, 5PM (local time) - 2.5ft (0.7m), 8s period, SE swell with cross-offshore winds.
- Most powerful swell: Tuesday 1 Sep, 2AM (local time) - 5ft (1.6m), 6s period, SSW swell with 210 kJ wave energy.
- Next surfable swell (1★+): Friday 28 Aug, 5PM (local time) - 2.5ft (0.7m), 8s period with SE 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 (Aug 28) at 5PM. The primary swell is predicted to be 0.7m and 8s period with a secondary swell of 0.7m and 6s. 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 1.6m 6s and forecast to arrive on Tuesday (Sep 01) at 2AM. Winds are predicted to be cross-shore at the time the swell arrives.
| Wave Type | Time (EDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 5PM (Fri 28th Aug) | 2.5ft (0.7m) 8s |
| Best Surf | 5PM (Fri 28th Aug) | 2.5ft (0.7m) 8s |
| Most Powerful | 2AM (Tue 1st Sep) | 5ft (1.6m) 6s |
Table - best surf conditions forecast for Jetty over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let’s have a look at what’s on the cards for the next couple of weeks.
Right off the bat, I gotta be straight with you—this is a tough one. The Jetty is looking at a long, dry spell. We’re talking a full week of weak, messy surf that just isn’t worth paddling out for. The first decent chance doesn’t roll around until Saturday the 29th of August, and even then, it’s barely a whisper.
The overall pattern is one of small, short-period southerly and southeasterly swells getting hammered by onshore winds. The wave energy is feeble, barely registering in the low double digits for most of the first week. The water’s sitting at 73°, which is about normal for this time of year, so no surprises there.
Let’s break it down. Tuesday the 25th and Wednesday the 26th are a write-off. Tiny 1.0ft to 1ft swell with cross-shore winds, total energy hanging around 31 to 36 (weak). Thursday the 27th kicks up a bit with 2ft swell and energy climbing to 110 (moderate), but it’s a fresh cross-onshore wind at 19 mph, making the surface lumpy and choppy. Not worth it.
Friday the 28th of August is the first real glimmer. The morning’s still a mess, but by the afternoon, the wind swings to the WNW at 6 mph, going cross-offshore. The wave comment says “surfable but very ordinary,” and I’d agree. Swell is a weak 2ft from the SE, period 8 seconds, energy 104 (moderate). It’s clean, but there’s no power. You might get a couple of soft ones if you’re desperate.
Saturday the 29th of August is the best of a bad bunch. Early morning, we’ve got a clean 3ft swell from the south with a 7-second period, but the real winner is the wind: 9 mph from the north, straight offshore. The wave comment says “surfable but very ordinary,” and the energy is only 81 (weak), but that offshore wind will make the most of it. The Jetty is a breakwater setup, so it’s exposed to the swell, and with that N wind, it’ll be the cleanest it gets all week. Crowds are “sometimes” an issue here, so you might have a few others with the same idea, but for the size, it won’t be packed. This is the stand-out, but keep your expectations grounded—it’s small.
After that, it’s back to the doldrums. Sunday the 30th of August through to Monday the 7th of September is a bleak run of tiny, onshore junk. The swell dips back to 1ft to 2ft, with most days seeing cross-on winds and energy values dropping into the 20s and 30s (weak). There’s a brief tease on Tuesday the 1st of September morning with a 3ft south swell and energy of 127 (moderate), but the wind is cross-shore from the WSW at 6 mph, making it choppy and messy.
Then, on Wednesday the 9th of September, things perk up a touch. The morning sees a clean 3ft south swell with a 6-second period, and the wind is offshore from the NW at 12 mph. The wave comment says “surfable but very ordinary,” but that offshore wind is gold. The energy is 75 (weak), so it’s still small, but it’ll be the cleanest surf of the whole 16-day run. The afternoon holds similar energy at 4ft from the south, but the wind goes cross-offshore, so the morning is the session to target. This is a promising but distant option—it’s 16 days out, so keep an eye on it.
Bottom line: Saturday the 29th of August morning is your best bet, but it’s a small-wave day. If you’re a beginner, the 3ft swell is fine. If you’re an expert, you’ll be on a log. The Wednesday the 9th of September morning is the long-range hope, but it’s a long way off. For the rest of it, I’d leave the board in the car and go for a coffee.
Stay salty,
Rusty
Short Range ForecastSome drizzle, heaviest during Thu night. Warm (max 24°C on Tue afternoon, min 19°C on Tue night). Winds increasing (light winds from the WSW on Wed afternoon, fresh winds from the SSW by Thu afternoon). | Days 4-6 Weather SummaryLight rain (total 8mm), mostly falling on Fri afternoon. Warm (max 24°C on Fri morning, min 19°C on Fri night). Wind will be generally light. | ||||||||||||||||||||
Tuesday 25 | Wednesday 26 | Thursday 27 | Friday 28 | Saturday 29 | Sunday 30 | Monday 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) | SE 11 | SE 10 | SE 11 | SE 9 | ESE 8 | SE 8 | SE 8 | SE 9 | SE 9 | SE 8 | SE 8 | S 7 | S 7 | S 6 | SE 8 | SE 7 | SE 8 | SE 8 | S 5 | SSW 5 | SSW 6 |
Wave Graph | |||||||||||||||||||||
18 | 17 | 18 | 29 | 47 | 58 | 58 | 62 | 61 | 100 | 69 | 76 | 56 | 27 | 28 | 11 | 18 | 23 | 15 | 28 | 210 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross-off | off | cross-off | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-off | off | off | cross-on | cross | cross-on | cross-on | cross | cross | cross-off | cross |
High Tide | 6:36PM1.05m | 7:00AM0.91m | 7:17PM1.08m | 7:40AM0.97m | 7:58PM1.10m | 8:20AM1.02m | 8:38PM1.10m | 9:00AM1.07m | 9:18PM1.09m | 9:41AM1.10m | 9:59PM1.07m | 10:23AM1.12m | 10:42PM1.02m | ||||||||
Low Tide | 11:35AM0.21m | 00:35AM0.18m | 12:25PM0.16m | 1:08AM0.13m | 1:09PM0.11m | 1:42AM0.08m | 1:51PM0.06m | 2:17AM0.03m | 2:33PM0.03m | 2:54AM0.00m | 3:15PM0.02m | 3:32AM-0.01m | 3:59PM0.02m | 4:13AM-0.00m | |||||||
6:09 | — | — | 6:11 | — | — | 6:11 | — | — | 6:13 | — | — | 6:13 | — | — | 6:15 | — | — | 6:16 | — | — | |
— | 7:34 | — | — | 7:32 | — | — | 7:30 | — | — | 7:30 | — | — | 7:28 | — | — | 7:25 | — | — | 7:24 | — | |
mm | — | — | — | — | — | — | — | — | 1 | — | 8 | — | — | — | — | — | — | — | — | — | 5 |
Temp °C | 22 | 24 | 24 | 22 | 24 | 24 | 24 | 24 | 24 | 24 | 22 | 23 | 20 | 24 | 23 | 23 | 23 | 24 | 25 | 29 | 27 |
Feels °C | 19 | 22 | 22 | 21 | 23 | 23 | 23 | 21 | 25 | 27 | 22 | 24 | 17 | 23 | 21 | 23 | 22 | 25 | 25 | 30 | 29 |
Swell 1 Height (m) Direction Period (s) | S 6 | SE 10 | S 5 | SE 9 | ESE 8 | SE 8 | SE 8 | SE 9 | S 5 | SE 8 | S 6 | S 7 | S 7 | S 6 | SE 8 | S 6 | SE 8 | SE 8 | SE 7 | SE 6 | S 6 |
9 | 17 | 11 | 29 | 47 | 58 | 58 | 62 | 33 | 100 | 33 | 76 | 56 | 27 | 28 | 10 | 18 | 23 | 13 | 15 | 135 | |
Swell 2 Height (m) Direction Period (s) | SE 11 | ESE 6 | SE 11 | SSW 5 | — | S 6 | — | — | SE 9 | S 5 | SE 8 | SE 8 | SE 8 | SE 8 | S 6 | SE 7 | S 6 | S 5 | — | SE 16 | SSE 16 |
18 | 8 | 18 | 4 | — | 6 | — | — | 61 | 14 | 69 | 51 | 23 | 22 | 17 | 11 | 6 | 2 | — | 11 | 25 | |
Swell 3 Height (m) Direction Period (s) | ESE 6 | S 5 | ESE 6 | ESE 6 | — | — | — | — | — | E 10 | E 10 | E 9 | E 10 | E 10 | E 9 | SE 8 | ESE 4 | E 4 | — | SE 17 | — |
4 | 5 | 3 | 3 | — | — | — | — | — | 2 | 2 | 2 | 2 | 2 | 2 | 11 | 3 | 1 | — | 11 | — | |
Wind waves Height (m) Direction Period (s) | — | SW 4 | — | — | SSW 6 | SSW 3 | S 4 | S 5 | — | — | — | — | — | — | — | — | — | SSW 3 | S 5 | SSW 5 | SSW 6 |
— | 4 | — | — | 7 | 2 | 14 | 48 | — | — | — | — | — | — | — | — | — | 2 | 15 | 28 | 210 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 257 | 282 | 14 | 14 | 65 | 223 | 233 | 1170 | 272 | 42 | 0 | 0 | 0 | 45 | 4 | 75 | 2522 | 2337 | 2575 | 0 | 16 |
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.











