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Surf Forecasts:

Coastguards surfForecast / Long Island NY / USA

information circle48hr Weather and Surf, issued 1 am Friday 20 Mar 2026 EDT
Forecast update in hr  min  s Forecast update imminent
Coastguards surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Coastguards sea temperature is
4.0° C
 (Which is slightly cooler than normal)

How big are the waves at Coastguards today?

The current surf forecast for Coastguards at 5AM is: 0.8m 9s primary swell from a Southeast direction and 0.1m 8s secondary swell from a Southeast direction, 0.5m 3s secondary swell from a Southwest direction (forecast issued at 01:00am March 20). The wind direction is predicted to be onshore.

Time (EDT) & DateWave HeightWave Period
Morning (20 Mar)2.5ft (0.7m)8s
Afternoon (20 Mar)4ft (1.2m)4s
Evening (20 Mar)7.5ft (2.3m)6s

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

Updates in  hr  min  s Forecast update imminent 
16 DaysHourly
Print Table
Friday
20
Saturday
21
Sunday
22
11 PM2 AM5 AM8 AM11 AM2 PM5 PM8 PM11 PM2 AM5 AM8 AM11 AM2 PM5 PM8 PM11 PM2 AM5 AM8 AM11 AM2 PM5 PM8 PM
Rating
(10 max)
0
0
0
0
0
0
0
0
0
0
0
1
1
0
1
1
0
0
0
0
0
0
0
1
Swell
Height Map
See all maps
Wave Height (m) & direction (?)
0.7
ESE
0.7
ESE
0.8
SE
0.7
SE
0.7
SE
0.7
SE
1.7
SSW
2.2
SSW
2.4
SSW
2.4
SSW
1.9
SSW
1.5
S
1.3
S
1
S
0.9
S
0.8
S
0.7
S
0.6
S
0.5
SE
0.5
SE
0.5
SE
1.1
SSW
1.6
SSW
1.4
SSW
Period(s) (?)999888667777776766888566
Wave
Graph
(?)Metric surfscale
Energy kJ (?)6770104727470181363512588394239162856556412834343456154132
Wind
(km/h)
15
SSW
15
SSW
15
SW
10
SW
20
SSW
30
SSW
40
SSW
40
SSW
40
SSW
30
SW
15
WSW
20
NNW
25
N
15
N
10
N
10
E
5
SE
10
S
15
S
15
SSW
20
SSW
20
SSW
15
SSW
10
NNE
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
ononononononononononcross-
on		cross-
off		cross-
off		cross-
off		offcross-
off		cross-
on		cross-
on		onononononoff
High Tide
/ height (m)
8:25PM
1.50
8:49AM
1.41
9:06PM
1.53
9:34AM
1.35
9:51PM
1.53
10:25AM
1.29
Low Tide
/ height (m)
2:49AM
-0.15
2:58PM
-0.16
3:34AM
-0.15
3:38PM
-0.14
4:20AM
-0.12
4:21PM
-0.08
Friday
20
Saturday
21
Sunday
22
Sunrise---6:56-------6:54-------6:54----
Sunset------7:04-------7:05-------7:07-
cloud
part cloud
clear
clear
clear
part cloud
cloud
cloud
light rain
light rain
cloud
cloud
part cloud
clear
cloud
cloud
cloud
part cloud
cloud
cloud
cloud
part cloud
cloud
light rain
Rain (mm)
--------21-------------3
Temp. °C44445677678879111098777898
Feels °C (?)-1-1-10-1-2-3-2-3153147664322356
  • 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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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 Coastguards 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 Coastguards at:
surf-forecast.com

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