Surf Forecasts:
Jetty surf forecast from 15 Aug 2026:
- Best quality surf: Monday 17 Aug, 2PM (local time) - 4ft (1.2m), 6s period, SSE swell with glassy winds.
- Most powerful swell: Monday 17 Aug, 11AM (local time) - 4.5ft (1.4m), 6s period, S swell with 141 kJ wave energy.
- Next surfable swell (1★+): Monday 17 Aug, 2PM (local time) - 4ft (1.2m), 6s 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 Monday (Aug 17) at 2PM. The primary swell is predicted to be 1.2m and 6s period. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Jetty in the next 16 days are 1.4m 6s and forecast to arrive on Monday (Aug 17) at 11AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.4m 4s period and expected on Saturday (Aug 15) at 2PM.
| Wave Type | Time (EDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 2PM (Mon 17th Aug) | 4ft (1.2m) 6s |
| Best Surf | 2PM (Mon 17th Aug) | 4ft (1.2m) 6s |
| Most Powerful | 11AM (Mon 17th Aug) | 4.5ft (1.4m) 6s |
Table - best surf conditions forecast for Jetty over the next 16 days.
The Lowdown
Alright, Rusty here. Let’s break down what’s coming for Jetty.
Honestly, it’s a long, flat spell ahead. From Saturday the 15th all the way through to late August, there’s hardly anything worth paddling out for. You’re looking at tiny, weak waves, mostly under 2ft, with onshore winds messing up the surface day after day. Wave energy is real low, sitting in the double digits and small triple digits most of the time. The first 11 days are almost a total write-off for surf.
But there is a light at the end of the tunnel. On Thursday the 27th of August, the wind switches offshore, out of the NNW and NW, cleaning the waves up proper. Swell comes from the S around 3ft to 4ft, with a period of 6-7 seconds. The combined energy hits 310 (moderate energy) by the afternoon, and the forecast calls for good surf conditions. That Thursday afternoon is your standout session. Clean, glassy, and the water is much warmer than normal at 77°, about 4° above average for the time of year.
Friday the 28th morning still has offshore winds with around 4ft of ENE swell, but the period’s short. It’s a backup if you miss Thursday.
For the rest of the window, the surf is just too small and choppy to bother with. Jetty is an exposed breakwater, and with all that cross-on wind, this setup looks way more suited for kite surfing than paddle surfing for the first week and a half. Crowds won’t be an issue because nobody’s out there.
Hang in there. Thursday the 27th is your day, but it’s a long way off. Forecasts can change.
Rusty.
Short Range ForecastLight rain (total 2mm), mostly falling on Mon morning. Warm (max 27°C on Mon afternoon, min 20°C on Sat morning). Mainly fresh winds. | Days 4-6 Weather SummaryModerate rain (total 13mm), heaviest on Thu morning. Warm (max 26°C on Wed afternoon, min 20°C on Thu morning). Wind will be generally light. | ||||||||||||||||||||
Saturday 15 | Sunday 16 | Monday 17 | Tuesday 18 | Wednesday 19 | Thursday 20 | Friday 21 | |||||||||||||||
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) | SSE 9 | S 6 | SSE 6 | S 6 | S 6 | SSW 5 | S 6 | SE 5 | SSE 7 | SSE 7 | SSE 7 | SSE 7 | SE 6 | SE 6 | S 5 | SE 9 | SE 9 | ESE 8 | SE 9 | SE 9 | SE 8 |
Wave Graph  | |||||||||||||||||||||
 kJ | 8 | 3 | 4 | 6 | 17 | 28 | 141 | 49 | 108 | 77 | 75 | 61 | 42 | 25 | 16 | 12 | 19 | 26 | 12 | 13 | 11 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-on | cross-off | cross-on | cross-on | cross-on | cross-on | cross-off | off | cross-off | cross-on | cross-on | cross-on | cross-on | cross | cross-off | glassy | cross-off | cross-off | on | on |
High Tide | 10:07AM1.12m | 10:26PM1.12m | 10:53AM1.11m | 11:12PM1.04m | 11:39AM1.07m | 11:58PM0.96m | 12:27PM1.02m | 00:46AM0.87m | 1:17PM0.98m | 1:39AM0.80m | 2:13PM0.94m | 2:38AM0.76m | 3:12PM0.92m | 3:41AM0.74m | |||||||
Low Tide | 3:47PM0.03m | 4:08AM0.02m | 4:30PM0.08m | 4:45AM0.06m | 5:14PM0.15m | 5:24AM0.12m | 6:01PM0.21m | 6:06AM0.17m | 6:52PM0.27m | 6:53AM0.22m | 7:48PM0.31m | 7:44AM0.26m | 8:52PM0.33m | ||||||||
 | |  | |  |  |  |  | | | | | | |  | | |  | | | | |
 | 6:00 | — | — | 6:01 | — | — | 6:01 | — | — | 6:03 | — | — | 6:03 | — | — | 6:05 | — | — | 6:05 | — | — |
 | — | 7:49 | — | — | 7:47 | — | — | 7:45 | — | — | 7:45 | — | — | 7:43 | — | — | 7:42 | — | — | 7:39 | — |
mm | — | — | — | — | — | — | 1 | 1 | — | — | — | — | — | — | 5 | 8 | — | — | — | — | — |
Temp °C | 22 | 24 | 23 | 22 | 24 | 24 | 24 | 27 | 26 | 23 | 25 | 25 | 25 | 26 | 25 | 22 | 26 | 26 | 22 | 23 | 23 |
Feels °C | 21 | 23 | 22 | 21 | 22 | 22 | 25 | 29 | 27 | 24 | 27 | 26 | 25 | 25 | 25 | 22 | 27 | 26 | 21 | 23 | 23 |
Swell 1 Height (m) Direction Period (s) | SSE 9 | E 4 | SSE 6 | S 6 | SSE 8 | SSE 8 | — | SE 5 | SSE 7 | SSE 7 | SSE 7 | SSE 7 | SE 6 | SE 6 | S 5 | ESE 6 | SE 9 | ESE 8 | SE 6 | ESE 6 | ESE 5 |
| kJ | 8 | 1 | 4 | 6 | 7 | 7 | — | 49 | 108 | 77 | 75 | 61 | 42 | 25 | 16 | 8 | 19 | 26 | 6 | 13 | 8 |
Swell 2 Height (m) Direction Period (s) | S 5 | SE 9 | SE 9 | SE 9 | SE 6 | — | — | SSW 6 | — | SE 13 | SE 12 | SSE 11 | SSE 10 | SE 9 | SE 6 | SSW 4 | ESE 6 | SSE 5 | E 7 | SE 9 | SE 8 |
| kJ | 2 | 3 | 3 | 3 | 1 | — | — | 39 | — | 7 | 6 | 12 | 10 | 14 | 10 | 4 | 8 | 5 | 9 | 12 | 11 |
Swell 3 Height (m) Direction Period (s) | SE 12 | S 6 | SE 4 | SE 6 | — | — | — | S 9 | — | SE 13 | SE 12 | S 6 | SE 10 | — | SE 9 | SE 9 | SSE 5 | — | SE 9 | E 7 | S 6 |
| kJ | 6 | 2 | 1 | 2 | — | — | — | 2 | — | 7 | 6 | 3 | 15 | — | 12 | 12 | 3 | — | 12 | 4 | 7 |
Wind waves Height (m) Direction Period (s) | ENE 4 | — | — | — | S 6 | SSW 5 | S 6 | — | — | NNE 3 | — | — | — | SSW 6 | — | — | — | — | E 3 | ESE 4 | — |
| kJ | 2 | — | — | — | 17 | 28 | 141 | — | — | 2 | — | — | — | 10 | — | — | — | — | 1 | 6 | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 1621 | 2564 | 1395 | 1455 | 2564 | 1325 | 42 | 0 | 0 | 0 | 73 | 73 | 120 | 272 | 160 | 50 | 626 | 324 | 778 | 865 | 257 |
Best forecast wave conditions in Long Island New York | |||||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||||
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The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Jetty surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.
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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