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Surf Forecasts:

Jetty surfForecast / Long Island NY / USA

information circle12 Day Weather and Surf, issued 12 pm Tuesday 20 Jan 2026 EST
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
3.9° C
 (Which is 2.1°C colder than average for this time of year)

Best Forecast Surf Conditions for Jetty this week:

The most powerful waves expected at Jetty in the next 12 days are 1.9m 8s and forecast to arrive on Thursday (Jan 22) at 10AM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.6m 6s period and expected on Tuesday (Jan 20) at 4PM.

Wave TypeTime (EST) & Date Wave Height & Period
Next good surf (1 star+)--
Best Surf--
Most Powerful10AM (Thu 22nd Jan)6ft (1.9m) 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 Mostly dry. Icy conditions (max 6°C on Thu afternoon, min -8°C on Tue night). Winds increasing (moderate winds from the W on Tue night, strong winds from the SW by Wed night).

Days 3-6 Weather Summary Mostly dry. Temperatures will be below freezing (max 0°C on Fri morning, min -13°C on Fri night). Winds decreasing (strong winds from the NW on Fri afternoon, calm by Sun night).

Tuesday
20
Wednesday
21
Thursday
22
Friday
23
Saturday
24
Sunday
25
Monday
26
AMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNight
Rating
(10 max)
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Swell
Height Map
See all maps
Wave Height (m) & direction (?)
0.8
SSE
0.5
S
0.4
SE
0.4
SE
0.5
SE
1.7
SSW
1.9
SSW
1.2
SSW
0.7
SSW
0.4
SE
0.4
SE
0.4
SE
0.4
SE
0.4
SE
0.4
SE
0.4
SE
0.4
SE
0.4
SE
0.4
SE
0.4
SE
0.4
SE
Period(s) (?)88889787610101012121110111111109
Wave
Graph
(?)Metric surfscale
Energy kJ (?)923225254328539313240373733474730273040403731
Wind
(km/h)
30
W
30
WNW
20
W
20
WSW
35
SSW
45
SW
30
WSW
35
WSW
20
W
30
W
40
WNW
35
NW
30
NW
25
NNW
15
NNW
15
NNE
5
E
0
NW
20
NW
25
WNW
30
NW
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
off		cross-
off		cross-
off		crosscross-
on		crosscrosscrosscross-
off		cross-
off		cross-
off		offoffoffoffcross-
off		crossglassoffcross-
off		off
High Tide
/ height (m)
8:48PM
0.83
9:03AM
0.96
9:30PM
0.86
9:44AM
0.93
10:13PM
0.88
10:28AM
0.89
10:59PM
0.89
11:15AM
0.83
11:50PM
0.90
12:08PM
0.77
12:48AM
0.90
1:09PM
0.72
1:51AM
0.91
Low Tide
/ height (m)
2:05PM
-0.11
2:10AM
-0.09
2:43PM
-0.13
2:54AM
-0.09
3:22PM
-0.14
3:41AM
-0.08
4:05PM
-0.13
4:31AM
-0.05
4:52PM
-0.12
5:26AM
-0.02
5:42PM
-0.09
6:26AM
0.02
6:38PM
-0.07
Tuesday
20
Wednesday
21
Thursday
22
Friday
23
Saturday
24
Sunday
25
Monday
26
Sunrise7:09--7:09--7:09--7:07--7:07--7:07--7:05--
Sunset-4:52--4:53--4:54--4:55--4:57--4:59--5:00-
clear
part cloud
clear
part cloud
cloud
part cloud
clear
cloud
part cloud
cloud
cloud
part cloud
part cloud
part cloud
part cloud
cloud
cloud
part cloud
part cloud
clear
clear
Rain (mm)
---------------------
Temp. °C-7-5-6-3455640-3-9-11-9-10-9-7-5-4-3-5
Feels °C (?)-17-15-14-12-6-5-3-2-4-9-14-20-20-18-17-14-12-9-11-11-15
  • 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

Latest Updates

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Quick surf report for Jetty:

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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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