Surf Forecasts:
Jetty surf forecast from 15 Jul 2026:
- Best quality surf: Tuesday 21 Jul, 5PM (local time) - 5ft (1.5m), 8s period, S swell with cross-offshore winds.
- Most powerful swell: Tuesday 21 Jul, 8AM (local time) - 6ft (1.8m), 7s period, SSW swell with 317 kJ wave energy.
- Next surfable swell (1★+): Saturday 18 Jul, 11PM (local time) - 5ft (1.6m), 6s 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 Saturday (Jul 18) at 11PM. The primary swell is predicted to be 1.6m and 6s period with a secondary swell of 0.1m and 13s. 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 Tuesday (Jul 21) at 8AM. 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 Wednesday (Jul 22) at 2AM.
| Wave Type | Time (EDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 11PM (Sat 18th Jul) | 5ft (1.6m) 6s |
| Best Surf | 5PM (Tue 21st Jul) | 5ft (1.5m) 8s |
| Most Powerful | 8AM (Tue 21st Jul) | 6ft (1.8m) 7s |
Table - best surf conditions forecast for Jetty over the next 16 days.
The Lowdown
Alright, grab your board, let's have a look at what's coming up. This is a pretty quiet stretch for the Jetty, with a long wait for anything decent. We kick things off with small, weak, and messy waves for the first week or so. You'll be sitting on the beach for a while.
The first real chance of something surfable rolls around on Sunday, 19th July. The Jetty will have a bit of knee-high energy from the SSE, but the conditions are just average. It's a long wait for a little bit of nothing.
The most promising period is Tuesday, 21st July, through to the end of the month. The best window is the afternoon of the 21st, with a 5 ft S swell rolling in, and a gentle cross-offshore wind from the W keeping things clean. The combined energy is moderate, hitting 292. It's not groundbreaking, but it's the best we'll see.
Then, on Monday, 27th July, the morning has a real moment. The swell is 4 ft from the S, and the wind goes glassy. That's super rare for here, and it'll make for a clean, smooth surface. The water temp is about average for the time of year, so no need for a thick wetsuit.
Most of the other days are a write-off. The wind is onshore or cross-onshore, the swell is small, and the energy is weak. The breakwater here is exposed, so it catches everything, but it also catches all the wind. A few days in late July, like the 26th and 28th, have a bit more size (5 ft - 5 ft) but the wind is either cross or cross-on, making it choppy. The 28th has a 5 ft S swell with moderate energy (324), but the cross-onshore wind will ruin it.
Overall, don't rush down. The standouts are the 21st afternoon and the morning of the 27th. Everything else is a hard pass. The long gap from the start of the forecast until the 19th is a real bummer.
Stay patient, friends.
Rusty
Short Range ForecastMostly dry. Warm (max 34°C on Wed afternoon, min 22°C on Thu night). Winds decreasing (fresh winds from the SW on Tue night, light winds from the NE by Fri morning). | Days 5-7 Weather SummaryHeavy rain (total 27mm), heaviest during Sat afternoon. Warm (max 24°C on Fri night, min 18°C on Sat afternoon). Wind will be generally light. | ||||||||||||||||||||
Wednesday 15 | Thursday 16 | Friday 17 | Saturday 18 | Sunday 19 | Monday 20 | Tue 21 | |||||||||||||||
Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | |
Swell Height Map |  |  |  |  |  |  |  |  | |||||||||||||
Wave Height (m) Direction Period (s) | SSW 6 | SW 6 | SSW 6 | S 6 | S 6 | SSW 6 | S 5 | S 5 | S 5 | S 5 | S 5 | SSE 4 | SE 6 | SSE 6 | S 7 | S 8 | S 8 | S 8 | S 6 | S 7 | S 8 |
Wave Graph  | |||||||||||||||||||||
 kJ | 85 | 111 | 87 | 24 | 27 | 51 | 15 | 14 | 14 | 21 | 11 | 13 | 92 | 66 | 82 | 90 | 165 | 190 | 83 | 194 | 291 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross-off | cross-off | off | cross | cross-off | off | cross-off | cross-on | cross-on | on | cross-on | cross-off | cross-off | on | on | on | on | cross-on | cross-off | cross-off |
High Tide | 8:22PM1.27m | 8:52AM1.04m | 9:14PM1.25m | 9:45AM1.06m | 10:04PM1.21m | 10:36AM1.06m | 10:54PM1.15m | 11:26AM1.05m | 11:43PM1.07m | 12:15PM1.03m | 00:32AM0.98m | 1:06PM1.00m | 1:23AM0.90m | 2:00PM0.97m | |||||||
Low Tide | 2:29AM-0.05m | 2:26PM-0.03m | 3:16AM-0.06m | 3:18PM-0.01m | 4:01AM-0.04m | 4:09PM0.03m | 4:45AM-0.01m | 4:59PM0.08m | 5:28AM0.04m | 5:51PM0.15m | 6:12AM0.09m | 6:45PM0.20m | 6:56AM0.14m | 7:43PM0.25m | |||||||
 | | |  |  | | | |  | |  | |  | | |  | | | | | | |
 | — | 5:31 | — | — | 5:31 | — | — | 5:33 | — | — | 5:33 | — | — | 5:35 | — | — | 5:35 | — | — | 5:35 | — |
 | 8:21 | — | 8:21 | — | — | 8:20 | — | — | 8:19 | — | — | 8:19 | — | — | 8:17 | — | — | 8:16 | — | — | 8:15 |
mm | — | — | — | — | — | — | — | — | — | — | 13 | 13 | 1 | — | — | — | — | — | 1 | — | — |
Temp °C | 28 | 30 | 34 | 33 | 27 | 31 | 31 | 25 | 25 | 24 | 19 | 20 | 21 | 20 | 21 | 21 | 22 | 23 | 25 | 27 | 28 |
Feels °C | 26 | 29 | 32 | 30 | 26 | 28 | 29 | 24 | 23 | 22 | 20 | 20 | 22 | 21 | 22 | 22 | 23 | 23 | 26 | 28 | 28 |
Swell 1 Height (m) Direction Period (s) | SE 9 | SSW 6 | SSW 6 | S 6 | S 6 | SSW 6 | S 5 | S 5 | SE 8 | SE 8 | S 5 | SE 13 | SE 6 | SSE 6 | S 7 | S 8 | S 8 | — | S 8 | S 7 | S 8 |
| kJ | 13 | 38 | 49 | 24 | 27 | 27 | 15 | 14 | 3 | 3 | 11 | 7 | 92 | 66 | 82 | 90 | 165 | — | 58 | 194 | 291 |
Swell 2 Height (m) Direction Period (s) | — | SE 9 | SE 9 | SE 9 | SE 9 | SE 9 | SE 9 | SE 8 | — | SE 14 | SE 8 | SE 13 | SE 13 | SE 13 | ESE 5 | E 4 | SE 12 | SE 12 | — | E 5 | E 6 |
| kJ | — | 12 | 12 | 3 | 3 | 3 | 3 | 3 | — | 8 | 3 | 7 | 7 | 7 | 5 | 2 | 6 | 6 | — | 1 | 1 |
Swell 3 Height (m) Direction Period (s) | — | — | S 16 | S 16 | S 15 | S 15 | SE 15 | SE 15 | SE 14 | E 9 | SE 14 | — | SE 13 | — | SE 13 | SE 12 | — | SE 12 | SE 12 | — | — |
| kJ | — | — | 5 | 5 | 5 | 4 | 9 | 8 | 8 | 2 | 7 | — | 7 | — | 6 | 6 | — | 6 | 6 | — | — |
Wind waves Height (m) Direction Period (s) | SSW 6 | SW 6 | SSW 6 | — | — | SSW 6 | — | — | S 5 | S 5 | — | SSE 4 | — | — | — | — | — | S 8 | S 6 | — | — |
| kJ | 85 | 111 | 87 | — | — | 51 | — | — | 14 | 21 | — | 13 | — | — | — | — | — | 190 | 83 | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 324 | 75 | 75 | 14 | 18 | 1179 | 732 | 740 | 2564 | 732 | 732 | 120 | 0 | 0 | 14 | 73 | 97 | 97 | 73 | 75 | 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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