Jetty surfForecast / Long Island NY / USA

information circle12 Day Weather and Surf, issued 6 pm Friday 02 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
5.3° C
(Which is 2.2°C colder than average for this time of year)


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 (Jan 08) at 4PM. The primary swell is predicted to be 0.8m and 8s period with a secondary swell of 0.2m and 5s. 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 1.5m 6s and forecast to arrive on Saturday (Jan 10) at 1AM. 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 3s period and expected on Thursday (Jan 08) at 10AM.

Wave TypeTime (EST) & Date Wave Height & Period
Next good surf (1 star+) 4PM (Thu 8th Jan)2.5ft (0.8m) 8s
Best Surf 4PM (Thu 8th Jan)2.5ft (0.8m) 8s
Most Powerful 1AM (Sat 10th Jan)5ft (1.5m) 6s

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

Updates in  hr  min  s Forecast update imminent

Short Range Forecast Mostly dry. Temperatures will be below freezing (max 0°C on Sun afternoon, min -7°C on Sun night). Mainly fresh winds.

Days 3-6 Weather Summary Mostly dry. Icy conditions (max 10°C on Wed morning, min -3°C on Mon afternoon). Wind will be generally light.

Fri
02
Saturday
03
Sunday
04
Monday
05
Tuesday
06
Wednesday
07
Thursday
08
PMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAM
Rating
(10 max)
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
Swell
Height Map
Wave Height (m) & direction (?)
0.2
ESE
0.2
ESE
0.2
S
0.3
S
0.3
SSW
0.2
SSW
0.2
S
0.1
SE
0.1
SE
0.2
ESE
0.2
S
0.2
S
0.2
S
0.3
SSW
0.6
S
0.9
SSW
0.9
S
0.9
S
0.8
S
0.6
S
0.5
S
Period(s) (?)12118767711101087764579887
Wave
Graph
(?)Metric surfscale
Energy kJ (?)13125985454105447114571122884226
Wind
(km/h)
25
WNW
30
WNW
20
WNW
20
WNW
15
NW
15
NNW
20
NW
25
NNW
10
NW
10
SW
10
WSW
15
E
15
NE
5
E
25
S
20
WSW
25
WNW
25
WNW
10
WNW
10
SW
30
SSE
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
offcross-
off
offcross-
off
crosscrosscross-
on
cross-
off
glassoncrosscross-
off
cross-
off
cross-
off
cross-
on
on
High Tide
/ height (m)
6:33PM
0.85
6:56AM
1.15
7:26PM
0.88
7:47AM
1.14
8:18PM
0.90
8:37AM
1.11
9:09PM
0.91
9:27AM
1.05
9:58PM
0.90
10:15AM
0.98
10:47PM
0.88
11:03AM
0.89
11:37PM
0.85
11:52AM
0.81
Low Tide
/ height (m)
12:04AM
-0.14
1:08PM
-0.16
12:59AM
-0.15
1:56PM
-0.17
1:50AM
-0.13
2:40PM
-0.16
2:39AM
-0.10
3:22PM
-0.14
3:27AM
-0.05
4:04PM
-0.09
4:16AM
0.00
4:46PM
-0.05
5:07AM
0.06
Fri
02
Saturday
03
Sunday
04
Monday
05
Tuesday
06
Wednesday
07
Thursday
08
Sunrise--7:13--7:15--7:15--7:13--7:13--7:13--7:13
Sunset4:34--4:35--4:36--4:37--4:37--4:37--4:38--
part cloud
clear
part cloud
cloud
cloud
part cloud
part cloud
clear
cloud
cloud
cloud
part cloud
part cloud
part cloud
cloud
part cloud
clear
clear
part cloud
cloud
cloud
Rain (mm)
---------------------
Temp. °C-2-2-2-2-1-10-3-4-13459108877911
Feels °C (?)-11-10-9-9-6-7-7-12-9-7-1-1155332355
  • 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

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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 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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