Jetty surfForecast / Long Island NY / USA

information circle48hr Weather and Surf, issued 1 pm Thursday 18 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
20.8° C
(Which is 1.0°C warmer than normal for this time of year)


How big are the waves at Jetty today?

The current surf forecast for Jetty at 8PM is: 0.9m 7s primary swell from a Southeast direction and 0.3m 2s secondary swell from a South-southwest direction (forecast issued at 01:00pm September 18). The wind direction is predicted to be cross-onshore.

Time (EDT) & DateWave HeightWave Period
Morning (18 Sep)3.5ft (1.0m)7s
Afternoon (18 Sep)2.5ft (0.8m)7s
Evening (18 Sep)2.5ft (0.8m)7s

Table - waves today at Jetty. (Swell directed towards the surf break)

Updates in  hr  min  s Forecast update imminent
Thursday
18
Friday
19
Saturday
20
Sunday
21
11AM2PM5PM8PM11PM2AM5AM8AM11AM2PM5PM8PM11PM2AM5AM8AM11AM2PM5PM8PM11PM2AM5AM8AM
Rating
(10 max)
1
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Swell
Height Map
Wave Height (m) & direction (?)
0.9
ESE
0.9
ESE
0.9
SE
0.9
SE
0.7
SE
0.7
SE
0.7
ESE
0.6
ESE
0.5
ESE
0.5
ESE
0.3
SE
0.4
ESE
0.4
ESE
0.3
SE
0.3
SE
0.7
ENE
1
E
1
E
1
E
0.9
ESE
0.9
ESE
1
ESE
1
ESE
1
ESE
Period(s) (?)7777888777107799566666666
Wave
Graph
(?)Metric surfscale
Energy kJ (?)938477795757503730281916161313255962665755676266
Wind
(km/h)
10
NNW
10
SSW
15
SSW
20
SW
20
SW
10
WNW
15
NNW
10
NW
10
NNW
5
WSW
10
SSW
0
SW
20
NNE
25
NNE
25
NE
25
NE
25
ENE
25
E
20
E
20
ESE
25
ESE
20
ESE
20
E
25
E
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
offcross-
on
cross-
on
cross-
on
crosscross-
off
offoffoffglasscross-
on
glasscross-
off
cross-
off
cross-
off
cross-
off
crosscrosscross-
on
cross-
on
cross-
on
cross-
on
crosscross
High Tide
/ height (m)
5:55PM
1.08
6:22AM
0.99
6:41PM
1.09
7:05AM
1.04
7:25PM
1.09
7:46AM
1.08
Low Tide
/ height (m)
11:32AM
0.20
12:29AM
0.15
12:28PM
0.16
1:05AM
0.12
1:10PM
0.12
1:32AM
0.10
Thursday
18
Friday
19
Saturday
20
Sunday
21
Sunrise-------6:33-------6:35-------6:35
Sunset--6:54-------6:52-------6:52-----
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
Rain (mm)
------------------------
Temp. °C192121212121212123252524221817161818181717171616
Feels °C (?)192119192022192022252525191312111413141313141312
  • 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 The wind is still cross-on at Jetty (light winds from the SSW at Westhampton Beach/Francis S. Gabreski Airport 8 km from Jetty). 0.8m 7s swell from the ESE with a 0.2m 5s windswell from the SSW. 2 swells combining to make bigger set waves.

    Jetty
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1 h 52 min ago

11 km/h
SSW
Cross-On
Please reload the page to see if there are any updates.

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