Jetty surfForecast / Long Island NY / USA

information circle48hr Weather and Surf, issued 7 am Thursday 21 May 2026 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
13.0° C
(Which is slightly warmer than usual)

How big are the waves at Jetty today?

The current surf forecast for Jetty at 2PM is: 0.6m 6s primary swell from a South direction and 0.4m 9s secondary swell from a Southeast direction (forecast issued at 07:00am May 21). An open ocean swell of 0.4m 3s is not directed at the surf break. The wind direction is predicted to be cross-offshore.

Time (EDT) & DateWave HeightWave Period
Morning (21 May)2.5ft (0.7m)6s
Afternoon (21 May)1.5ft (0.4m)9s
Evening (21 May)1.5ft (0.4m)9s

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


Updates in  hr  min  s Forecast update imminent

Short Range Forecast

Heavy rain (total 20mm), heaviest during Sat night. Very mild (max 16°C on Thu morning, min 8°C on Sat afternoon). Winds increasing (light winds from the E on Thu afternoon, strong winds from the E by Sat night).

Thursday
21
Friday
22
Saturday
23
Sun
24
5 AM
8 AM
11 AM
2 PM
5 PM
8 PM
11 PM
2 AM
5 AM
8 AM
11 AM
2 PM
5 PM
8 PM
11 PM
2 AM
5 AM
8 AM
11 AM
2 PM
5 PM
8 PM
11 PM
2 AM
Rating
(10 max)
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Swell
Height Map
Height MapHeight MapHeight Map
Height MapHeight MapHeight Map
Height MapHeight MapHeight Map
Height MapHeight MapHeight Map
Wave
Height (m)
Direction
Period (s)
0.8
S
6
0.7
S
6
0.4
SE
9
0.4
SE
9
0.4
SE
9
0.4
SE
9
0.4
SE
9
0.4
SE
9
0.4
SE
9
0.4
SE
9
0.4
SE
9
1
ESE
5
1.1
ESE
6
1.2
ESE
6
1.1
ESE
6
1
ESE
6
0.9
ESE
6
0.9
ESE
6
1
ESE
6
1.2
ESE
6
1.3
ESE
6
1.6
SE
7
2
SE
7
2.2
SE
8
Wave Graph
Metric surfscale
Energy kJ
50
38
27
27
27
27
27
27
27
20
21
48
74
90
85
72
63
65
80
93
128
220
418
573
Wind (km/h)
20
NNW
20
N
25
NNE
20
NNE
10
E
10
SE
10
SE
10
ENE
15
ENE
20
ENE
25
E
25
E
25
ESE
25
ESE
20
ESE
20
E
20
ENE
20
E
25
E
25
ESE
25
E
30
E
35
E
40
E
off
cross-off
cross-off
cross-off
cross
on
on
cross
cross
cross
cross
cross-on
cross-on
cross-on
cross-on
cross-on
cross
cross
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
High Tide
12:13PM0.94m
00:33AM1.09m
1:13PM0.92m
1:33AM1.01m
2:15PM0.92m
Low Tide
5:33AM0.02m
5:35PM0.11m
6:33AM0.07m
6:41PM0.17m
7:37AM0.11m
7:56PM0.20m
cloud
cloud
cloud
cloud
cloud
cloud
cloud
cloud
cloud
part cloud
part cloud
part cloud
cloud
cloud
cloud
cloud
cloud
cloud
cloud
light rain
light rain
light rain
light rain
light rain
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:28
5:26
5:26
5:26
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
8:06
8:07
8:07
8:08
2
3
3
3
3
Temp °C
16
16
16
13
13
13
13
13
12
12
12
12
12
12
12
11
11
11
10
8
8
8
9
10
11
12
11
9
11
11
11
11
9
7
7
6
6
6
7
6
6
5
3
2
2
2
2
2
Swell 1
Height (m)
Direction
Period (s)
0.8
S
6
0.7
S
6
0.6
S
6
0.6
S
6
0.6
S
6
0.5
S
6
0.5
E
5
0.5
E
5
0.4
SE
9
0.4
S
6
0.4
SSE
6
0.3
SE
9
0.3
SE
10
0.1
SE
10
1.1
ESE
6
1
ESE
6
0.9
ESE
6
0.9
ESE
6
0.1
SE
13
0.1
SE
13
0.1
SE
13
0.1
SE
13
Energy kJ
50
38
27
27
27
19
14
14
27
10
11
13
14
4
85
72
63
65
7
7
7
7
Swell 2
Height (m)
Direction
Period (s)
0.4
SE
9
0.4
SE
9
0.4
SE
9
0.4
SE
9
0.4
SE
9
0.5
E
5
0.5
S
6
0.4
S
6
0.4
S
6
0.4
SE
9
0.4
SE
9
0.1
SE
13
0.1
SE
13
0.1
SE
13
0.1
SE
10
0.1
SE
10
0.1
SE
11
0.1
SE
13
0.1
SE
14
Energy kJ
29
29
27
27
27
11
18
11
11
20
21
7
7
7
4
4
5
7
7
Swell 3
Height (m)
Direction
Period (s)
0.1
SE
15
0.1
SE
14
0.1
SE
14
0.1
SE
14
0.1
SE
14
0.4
SE
9
0.4
SE
9
0.4
SE
9
0.1
SE
14
0.1
SE
14
0.1
SE
13
0.1
SE
13
0.1
SE
13
0.1
SE
13
0.1
SE
10
Energy kJ
8
8
8
8
8
27
27
27
7
7
7
7
7
7
4
Wind waves
Height (m)
Direction
Period (s)
0.4
NE
3
0.4
NE
3
0.4
ENE
4
0.7
E
5
0.7
E
5
0.5
E
5
0.5
E
4
0.7
E
4
1
ESE
5
1.1
ESE
6
1.2
ESE
6
1
ESE
6
1.2
ESE
6
1.3
ESE
6
1.6
SE
7
2
SE
7
2.2
SE
8
Energy kJ
2
4
6
24
26
12
9
16
48
74
90
80
93
128
220
418
573
Nearest Offshore or Glassy
Rating
(10 max)
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
2
2
1
2
2
1
1
1
1
Distance (km)
0
57
57
58
57
740
562
57
584
584
584
589
598
611
626
626
500
584
633
626
500
489
489
489
Best forecast wave conditions in Long Island New York
Rating
(10 max)
1
1
1
1
1
1
Best forecast wave conditions in United States
Rating
(10 max)
1
2
2
1
1
2
2
2
2
2
2
1
1
1
1
2
2
2
2
2
1
1
1
2
Header Global
Rating
(10 max)
5
5
5
5
5
5
5
7
7
7
6
6
7
8
6
7
8
8
7
7
6
6
5
5
  • 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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