Coastguards surfForecast / Long Island NY / USA

information circle12 Day Weather and Surf, issued 7 am Tuesday 15 Jul 2025 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
23.5° C
(Which is 1.7°C warmer than normal for this time of year)


Best Forecast Surf Conditions for Coastguards this week:

The surf forecast for Coastguards over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Friday (Jul 18) at 5AM. The primary swell is predicted to be 1.2m and 7s period with a secondary swell of 0.1m and 11s. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at Coastguards in the next 12 days are 1.8m 7s and forecast to arrive on Thursday (Jul 17) at 8PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.8m 6s period and expected on Tuesday (Jul 22) at 8AM.

Wave TypeTime (EDT) & Date Wave Height & Period
Next good surf (1 star+) 5AM (Fri 18th Jul)4ft (1.2m) 7s
Best Surf 5AM (Fri 18th Jul)4ft (1.2m) 7s
Most Powerful 8PM (Thu 17th Jul)6ft (1.8m) 7s

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

Updates in  hr  min  s Forecast update imminent
Tuesday
15
Wednesday
16
Thursday
17
Friday
18
Saturday
19
Sunday
20
Monday
21
Tuesday
22
Wednesday
23
Thursday
24
Friday
25
Saturday
26
AMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNight
Rating
(10 max)
0
0
0
0
0
0
0
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
Wave Height (m) & direction (?)
0.4
ESE
0.3
ESE
0.2
ESE
0.4
SSE
0.6
S
0.9
SSW
1.2
S
1.6
S
1.7
SSW
1.1
S
1
S
0.8
S
0.5
S
0.4
SE
0.4
SE
0.4
SE
0.4
SE
0.9
S
0.4
SE
0.4
SE
0.3
SE
0.9
E
0.6
SSE
0.5
S
0.4
S
0.3
S
0.6
ESE
0.4
SE
0.6
SE
0.4
SE
0.6
SE
0.8
SSE
1.5
S
0.9
S
0.6
SE
0.4
SE
Period(s) (?)668665677777788884977687764657676688
Wave
Graph
(?)Metric surfscale
Energy (?)242215173353119238501138115784132353950444621168550521815262429323059153857647
Wind
(km/h)
0
S
15
S
10
SW
10
SSW
20
S
20
SW
15
SW
20
SSW
20
W
10
NW
5
SW
15
N
10
NE
15
SE
10
SSW
15
S
20
SSW
15
SW
25
NW
25
N
15
NNE
15
ENE
20
ESE
15
SE
20
ESE
20
ESE
15
E
15
E
15
ESE
10
SSW
10
S
5
SSW
15
N
5
NNE
15
S
10
W
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
glassononononcross-
on
ononcross-
on
cross-
off
glassoffoffcrossoncross-
on
ononcross-
off
offoffcross-
off
crosscrosscrosscrosscross-
off
cross-
off
crossoncross-
on
oncross-
off
offoncross-
on
High Tide
/ height (m)
11:19AM
1.31
11:29PM
1.37
12:09PM
1.36
12:23AM
1.31
1:01PM
1.40
1:19AM
1.25
1:55PM
1.43
2:19AM
1.19
2:54PM
1.46
3:25AM
1.16
3:57PM
1.49
4:34AM
1.16
5:01PM
1.52
5:40AM
1.20
6:02PM
1.57
6:38AM
1.25
6:56PM
1.60
7:31AM
1.30
7:46PM
1.60
8:21AM
1.33
8:33PM
1.58
9:10AM
1.34
9:19PM
1.52
Low Tide
/ height (m)
5:15PM
0.15
5:40AM
-0.01
6:11PM
0.19
6:28AM
0.02
7:19PM
0.21
7:25AM
0.06
8:32PM
0.20
8:29AM
0.08
9:40PM
0.15
9:33AM
0.08
10:42PM
0.09
10:34AM
0.07
11:40PM
0.03
11:33AM
0.04
12:36AM
-0.03
12:30PM
0.02
1:29AM
-0.07
1:25PM
0.01
2:18AM
-0.10
2:16PM
0.01
3:04AM
-0.10
3:04PM
0.03
3:45AM
-0.08
Tuesday
15
Wednesday
16
Thursday
17
Friday
18
Saturday
19
Sunday
20
Monday
21
Tuesday
22
Wednesday
23
Thursday
24
Friday
25
Saturday
26
Sunrise5:33--5:35--5:35--5:37--5:37--5:37--5:39--5:39--5:41--5:41--5:43--5:43--
Sunset-8:22--8:22--8:21--8:21--8:20--8:19--8:19--8:17--8:16--8:15--8:15--8:14-
thunderstorm clearclearclearclearrain showerspart cloudpart cloudclearpart cloudpart cloudclearclearclearclearpart cloudcloudrain showersclearclearclearclearclearclearclearclearclearpart cloudpart cloudpart cloudpart cloudcloudrain showersclearclearclear
Rain (mm)
1----2-----------4--------------4---
Temp. °C262726282828243032252826242524252525252827252423232322232323252521232424
Feels °C (?)302928302929263132252926252625262527222625222124232222242425272721232322

Short Range Forecast: Light rain (total 3mm), mostly falling on Wed night. Warm (max 32°C on Thu night, min 24°C on Tue morning). Wind will be generally light.

Days 3-6 Weather Summary Light rain (total 4mm), mostly falling on Sun night. Warm (max 28°C on Fri afternoon, min 20°C on Fri night). Wind will be generally light.

Days 6-9 Weather Summary Mostly dry. Warm (max 28°C on Mon afternoon, min 21°C on Wed night). Wind will be generally light.

Long Range Forecast: Light rain (total 4mm), mostly falling on Fri night. Warm (max 25°C on Fri morning, min 19°C on Fri night). Wind will be generally light.

  • 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 Continuing clean conditions at Coastguards (calm at Farmingdale Airport 14 km from Coastguards). no significant swell. Swells combining. Closeout sets possible

    Coastguards
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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.


Information about the Coastguards Surf forecast

The above surf forecast table for Coastguards provides essential information for determining whether the surfing conditions will be good over the next 12 days. A general guide to surfing at Coastguards can be found by selecting the local surf guide option on the grey menu. Our Coastguards 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 (Coastguards) 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 Coastguards 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.

Coastguards is 7 km (4 miles) from Lindenhurst. If you plan a vacation in Long Island New York, look for hotels and other accommodation in Lindenhurst. Lindenhurst has rooms for a wide range of budgets as well as car hire and transport links.

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