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Surf Forecasts:

Jetty surfForecast / Long Island NY / USA

information circle12 Day Weather and Surf, issued 7 pm Monday 15 Sep 2025 EDT
Forecast update in hr  min  s Forecast update imminent
Jetty surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Jetty sea temperature is
21.1° C
 (Which is slightly warmer than usual)

Best Forecast Surf Conditions for Jetty this week:

The surf forecast for Jetty over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Thursday (Sep 18) at 2AM. The primary swell is predicted to be 1.0m and 7s period with a secondary swell of 0.3m and 6s. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at Jetty in the next 12 days are 1.6m 8s and forecast to arrive on Wednesday (Sep 17) at 5AM. 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 4s period and expected on Friday (Sep 19) at 8AM.

Wave TypeTime (EDT) & Date Wave Height & Period
Next good surf (1 star+) 2AM (Thu 18th Sep)3.5ft (1.0m) 7s
Best Surf 2AM (Thu 18th Sep)3.5ft (1.0m) 7s
Most Powerful 5AM (Wed 17th Sep)5ft (1.6m) 8s

Table - best surf conditions forecast for Jetty over the next 12 days.

Updates in  hr  min  s Forecast update imminent 
12 DaysHourly
Print Table

Short Range Forecast Light rain (total 2mm), mostly falling on Tue night. Warm (max 21°C on Thu afternoon, min 18°C on Mon night). Wind will be generally light.

Days 3-6 Weather Summary Mostly dry. Warm (max 26°C on Fri afternoon, min 14°C on Sat morning). Wind will be generally light.

Tuesday
16
Wednesday
17
Thursday
18
Friday
19
Saturday
20
Sunday
21
Mon
22
NightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPM
Rating
(10 max)
0
0
0
0
0
0
1
1
0
0
0
0
0
0
0
0
0
0
0
0
0
Swell
Height Map
See all maps
Wave Height (m) & direction (?)
1.2
ESE
1.3
ESE
1.3
ESE
1.3
ESE
1.3
ESE
1.2
ESE
1
SE
0.9
SE
0.8
ESE
0.8
SE
0.5
ESE
0.4
ESE
0.7
E
0.9
E
0.9
E
0.2
SSE
0.4
SE
0.5
SE
0.8
SE
0.6
SE
0.6
SE
Period(s) (?)688877788888466161514131212
Wave
Graph
(?)Metric surfscale
Energy (?)1782251981911821461098783824540456410150105110232124133
Wind
(km/h)
15
E
25
ENE
25
E
20
E
25
E
20
E
10
ENE
5
NE
10
S
20
WSW
20
NNW
20
NNW
30
NE
20
ENE
15
SE
15
SSE
15
SE
15
SE
15
SSW
10
SW
15
SSW
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
crosscrosscrosscrosscrosscross-
on		cross-
off		glasscross-
on		crossoffoffcross-
off		crosscross-
on		onononcross-
on		cross-
on		cross-
on
High Tide
/ height (m)
3:30AM
0.84
4:00PM
1.04
4:36AM
0.87
5:01PM
1.06
5:33AM
0.93
5:55PM
1.08
6:22AM
0.99
6:41PM
1.09
7:05AM
1.04
7:25PM
1.09
7:46AM
1.08
8:05PM
1.08
8:25AM
1.10
Low Tide
/ height (m)
9:02PM
0.23
8:49AM
0.23
10:34PM
0.21
10:13AM
0.23
11:42PM
0.18
11:32AM
0.20
12:29AM
0.15
12:28PM
0.16
1:05AM
0.12
1:10PM
0.12
1:32AM
0.10
1:44PM
0.10
1:56AM
0.09
2:15PM
0.09
Tuesday
16
Wednesday
17
Thursday
18
Friday
19
Saturday
20
Sunday
21
Mon
22
Sunrise-6:31--6:31--6:33--6:33--6:35--6:35--6:37-
Sunset--6:58--6:57--6:54--6:52--6:52--6:50--6:47
cloud
cloud
cloud
rain showers
part cloud
part cloud
part cloud
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
part cloud
part cloud
Rain (mm)
---2-----------------
Temp. °C191819181819192021212326241616161616161718
Feels °C (?)171615151517192121202022191213121313131616
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
Map placeholder

Eyeball surf reportRecent Eyeball Surf Reports for Long Island NY

  1. weather stationWind Update Continuing clean conditions at Jetty (light winds from the E at Westhampton Beach/Francis S. Gabreski Airport 8 km from Jetty). 1.1m 6s windswell from the ESE with a 0.3m 8s swell, also from the ESE. 2 swells combining to make bigger set waves.

    2 hours 14 minutes ago Jetty
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2 h 14 min ago

7 km/h
E
Clean
Please reload the page to see if there are any updates.

FREE! Surf-Forecast.com widget for your website

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.

View detailed surf forecast for Jetty at:
surf-forecast.com

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 12 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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