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Surf Forecasts:
Coastguards surfForecast / Long Island NY / USA
48hr Weather and Surf, issued 7 am Sunday 17 May 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
13.8° C
(Which is 2.4°C warmer than normal for this time of year)How big are the waves at Coastguards today?
The current surf forecast for Coastguards at 1PM is: 0.8m 8s primary swell from a South-southeast direction and 0.3m 8s secondary swell from a East-southeast direction, 0.9m 7s secondary swell from a South-southwest direction (forecast issued at 07:00am May 17). The wind direction is predicted to be cross-onshore.
| Time (EDT) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (17 May) | 4ft (1.2m) | 7s |
| Afternoon (17 May) | 2.5ft (0.8m) | 8s |
| Evening (17 May) | 4.5ft (1.3m) | 8s |
Table - waves today at Coastguards. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastSome drizzle, heaviest during Mon night. Warm (max 26°C on Sun afternoon, min 19°C on Sun morning). Wind will be generally light. | ||||||||||||||||||||||||
Sunday 17 | Monday 18 | Tuesday 19 | Wed 20 | |||||||||||||||||||||
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 | |
Swell Height Map |    |    |    |    | ||||||||||||||||||||
SSW 6 | S 7 | S 7 | SSE 8 | S 8 | S 8 | S 8 | S 7 | SSE 8 | SSE 8 | SSE 8 | SE 8 | SSE 8 | SSE 8 | SE 8 | SSW 5 | SSW 5 | S 6 | S 6 | S 6 | S 6 | SSW 6 | SSW 6 | SSW 7 | |
139 | 153 | 147 | 84 | 160 | 164 | 186 | 156 | 39 | 39 | 75 | 28 | 75 | 75 | 28 | 40 | 58 | 62 | 64 | 74 | 149 | 284 | 352 | 240 | |
Wind (km/h) | ||||||||||||||||||||||||
cross-on | cross | cross-on | on | on | on | on | cross-on | glassy | cross-off | cross-on | cross-on | cross-on | cross-on | on | on | on | on | on | on | on | on | on | on | |
High Tide | 8:13AM1.37m | 8:27PM1.72m | 9:07AM1.36m | 9:19PM1.69m | 10:04AM1.33m | 10:17PM1.62m | ||||||||||||||||||
Low Tide | 2:15AM-0.16m | 2:11PM-0.09m | 3:07AM-0.18m | 3:04PM-0.07m | 3:58AM-0.16m | 3:56PM-0.02m | ||||||||||||||||||
 |  |  | | | | |  | | | | | | | |  | | | | | | | | | |
 | 5:35 | — | — | — | — | — | — | — | 5:33 | — | — | — | — | — | — | — | 5:33 | — | — | — | — | — | — | 5:31 |
 | — | — | — | — | — | 8:04 | — | — | — | — | — | — | — | 8:05 | — | — | — | — | — | — | — | 8:06 | — | 8:07 |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | — | — | — | — | — | — | — | — | |
Temp °C | 19 | 19 | 23 | 26 | 25 | 25 | 25 | 24 | 23 | 21 | 22 | 22 | 23 | 21 | 20 | 21 | 22 | 22 | 25 | 26 | 24 | 23 | 22 | 21 |
16 | 18 | 22 | 23 | 22 | 22 | 23 | 24 | 25 | 22 | 22 | 21 | 22 | 20 | 19 | 20 | 22 | 22 | 24 | 24 | 21 | 19 | 18 | 18 | |
Swell 1 Height (m) Direction Period (s) | SSW 6 | S 7 | S 7 | SSE 8 | SSE 8 | — | E 15 | S 7 | SSW 5 | S 6 | SSE 8 | SE 8 | SE 14 | SE 14 | SE 8 | SE 8 | SE 9 | SE 9 | SE 9 | SE 8 | SE 8 | SE 14 | SE 16 | SE 8 |
 kJ | 139 | 153 | 147 | 84 | 95 | — | 4 | 156 | 36 | 30 | 75 | 28 | 7 | 7 | 28 | 30 | 38 | 49 | 46 | 44 | 35 | 7 | 10 | 45 |
Swell 2 Height (m) Direction Period (s) | SE 8 | ESE 8 | ESE 8 | SSE 8 | — | — | — | E 15 | SSE 8 | SSE 8 | E 14 | E 14 | — | — | — | — | SE 13 | SE 13 | SE 13 | SE 13 | SE 13 | — | E 13 | SE 16 |
| kJ | 35 | 24 | 12 | 84 | — | — | — | 4 | 39 | 39 | 4 | 4 | — | — | — | — | 7 | 7 | 7 | 7 | 7 | — | 3 | 10 |
Swell 3 Height (m) Direction Period (s) | ESE 9 | ESE 8 | E 9 | E 8 | — | — | — | — | E 15 | E 15 | — | — | — | — | SE 13 | SE 13 | — | — | — | — | — | SE 16 | — | — |
| kJ | 26 | 24 | 14 | 5 | — | — | — | — | 4 | 4 | — | — | — | — | 7 | 7 | — | — | — | — | — | 10 | — | — |
Wind waves Height (m) Direction Period (s) | SW 6 | — | — | SSW 7 | S 8 | S 8 | S 8 | SSW 7 | — | — | — | S 5 | SSE 8 | SSE 8 | S 5 | SSW 5 | SSW 5 | S 6 | S 6 | S 6 | S 6 | SSW 6 | SSW 6 | SSW 7 |
| kJ | 82 | — | — | 66 | 160 | 164 | 186 | 96 | — | — | — | 13 | 75 | 75 | 22 | 40 | 58 | 62 | 64 | 74 | 149 | 284 | 352 | 240 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 40 | 6 | 6 | 131 | 125 | 62 | 59 | 21 | 0 | 0 | 544 | 789 | 789 | 789 | 321 | 75 | 69 | 60 | 62 | 961 | 62 | 330 | 59 | 59 |
Best forecast wave conditions in Long Island New York | ||||||||||||||||||||||||
Best forecast wave conditions in United States | ||||||||||||||||||||||||
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