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Surf Forecasts:
Coastguards surfForecast / Long Island NY / USA
48hr Weather and Surf, issued 7 pm Saturday 18 Apr 2026 EDTForecast 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
7.7° C
(Which is slightly warmer than usual)How big are the waves at Coastguards today?
The current surf forecast for Coastguards at 11PM is: 0.7m 4s primary swell from a East-southeast direction and 0.4m 6s secondary swell from a South direction, 0.1m 10s secondary swell from a Southeast direction (forecast issued at 07:00pm April 18). The wind direction is predicted to be cross-onshore.
| Time (EDT) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (18 Apr) | - | - |
| Afternoon (18 Apr) | 1.5ft (0.5m) | 6s |
| Evening (18 Apr) | 1.5ft (0.4m) | 6s |
Table - waves today at Coastguards. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Saturday 18 | Sunday 19 | Monday 20 | Tuesday 21 | |||||||||||||||||||||
| 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 | 5 AM | 8 AM | 11 AM | 2 PM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |    |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 7 | 6 | 4 | 7 | 8 | 6 | 5 | 6 | 6 | 6 | 6 | 7 | 7 | 7 | 7 | 7 | 6 | 7 | 7 | 7 | 7 | 8 | 8 | 8 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 43 | 11 | 14 | 8 | 9 | 5 | 19 | 29 | 39 | 35 | 27 | 12 | 11 | 15 | 8 | 8 | 7 | 5 | 4 | 4 | 4 | 5 | 5 | 5 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross | cross | cross- on | on | cross | cross | cross | cross- off | cross | cross | cross- off | cross | cross- on | cross- off | cross | cross | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross | on |
High Tide / height (m) | 8:44PM 1.66 | 9:19AM 1.36 | 9:33PM 1.64 | 10:15AM 1.31 | 10:28PM 1.58 | 11:15AM 1.25 | ||||||||||||||||||
Low Tide / height (m) | 2:32PM -0.12 | 3:20AM -0.17 | 3:19PM -0.09 | 4:09AM -0.14 | 4:07PM -0.03 | 5:01AM -0.07 | ||||||||||||||||||
Saturday 18 | Sunday 19 | Monday 20 | Tuesday 21 | |||||||||||||||||||||
| Sunrise | - | - | - | - | - | 6:09 | - | - | - | - | - | - | - | 6:07 | - | - | - | - | - | - | - | 6:05 | - | - |
| Sunset | 7:35 | - | - | - | - | - | - | - | 7:36 | - | - | - | - | - | - | - | 7:37 | - | - | - | - | - | - | - |
 |  |  | | |  |  | | |  | | | | | | | | | | | |  | | | |
Rain (mm) | - | - | - | - | - | - | 1 | 1 | 1 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 10 | 8 | 8 | 9 | 10 | 10 | 12 | 8 | 7 | 9 | 9 | 7 | 7 | 6 | 7 | 9 | 9 | 8 | 5 | 4 | 3 | 4 | 5 | 7 |
| Feels °C (?) | 5 | 4 | 4 | 7 | 7 | 8 | 9 | 0 | 0 | 4 | 2 | 2 | 3 | -1 | 2 | 2 | 1 | 0 | -2 | -2 | -4 | -2 | 1 | 1 |
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Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
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.
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