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Surf Forecasts:
Coastguards surfForecast / Long Island NY / USA
48hr Weather and Surf, issued 7 pm Monday 18 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
13.3° C
(Which is 1.7°C warmer than normal for this time of year)How big are the waves at Coastguards today?
The current surf forecast for Coastguards at 12AM is: 1.2m 5s primary swell from a South-southwest direction and 0.5m 8s secondary swell from a Southeast direction, 0.1m 13s secondary swell from a Southeast direction (forecast issued at 07:00pm May 18). The wind direction is predicted to be onshore.
| Time (EDT) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (19 May) | 4.5ft (1.3m) | 6s |
| Afternoon (19 May) | 5ft (1.5m) | 6s |
| Evening (19 May) | 5.5ft (1.7m) | 6s |
Table - waves today at Coastguards. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastLight rain (total 4mm), mostly falling on Wed night. Warm (max 29°C on Wed morning, min 14°C on Wed night). Mainly fresh winds. | ||||||||||||||||||||||||
Mon 18 | Tuesday 19 | Wednesday 20 | Thu 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 | |
Swell Height Map |    |    |    |    | ||||||||||||||||||||
SSE 8 | SE 8 | SSW 5 | S 5 | S 6 | S 6 | S 6 | S 6 | S 6 | S 6 | SSW 6 | SSW 7 | SSW 6 | SSW 6 | SSW 6 | SSW 6 | SSW 6 | SSW 6 | S 6 | S 6 | S 6 | S 6 | S 6 | SE 9 | |
94 | 33 | 78 | 114 | 108 | 116 | 120 | 137 | 247 | 263 | 260 | 206 | 147 | 123 | 123 | 119 | 150 | 155 | 76 | 64 | 50 | 37 | 37 | 28 | |
Wind (km/h) | ||||||||||||||||||||||||
on | on | on | on | on | on | on | on | on | on | on | on | on | cross-on | cross-on | on | on | cross-on | cross-off | off | off | off | cross-off | cross | |
High Tide | 9:19PM1.69m | 10:04AM1.33m | 10:17PM1.62m | 11:05AM1.30m | 11:17PM1.53m | 12:06PM1.29m | ||||||||||||||||||
Low Tide | 3:04PM-0.07m | 3:58AM-0.16m | 3:56PM-0.02m | 4:50AM-0.11m | 4:50PM0.05m | 5:45AM-0.04m | ||||||||||||||||||
 | |  |  | | |  | | |  | |  | | | | | |  | | |  |  | | | |
 | — | — | — | — | 5:33 | — | — | — | — | — | — | — | 5:31 | — | — | — | — | — | — | — | 5:31 | — | — | — |
 | — | 8:05 | — | — | — | — | — | — | — | 8:06 | — | — | — | — | — | — | — | 8:07 | — | — | — | — | — | 8:07 |
— | — | 1 | — | — | — | — | — | — | 1 | — | — | — | — | — | — | — | 2 | — | — | — | — | — | — | |
Temp °C | 24 | 22 | 23 | 23 | 21 | 21 | 24 | 27 | 27 | 28 | 24 | 22 | 21 | 23 | 29 | 29 | 27 | 21 | 19 | 16 | 14 | 14 | 15 | 16 |
22 | 19 | 20 | 21 | 20 | 20 | 22 | 24 | 23 | 25 | 21 | 20 | 19 | 22 | 27 | 26 | 25 | 21 | 16 | 11 | 9 | 9 | 11 | 13 | |
Swell 1 Height (m) Direction Period (s) | SE 14 | SE 8 | SE 8 | SE 13 | SE 10 | SE 10 | SE 9 | SE 8 | SE 13 | SE 14 | SE 8 | SE 9 | SE 9 | SE 8 | SE 9 | SE 9 | SE 9 | S 6 | S 6 | S 6 | S 6 | S 6 | S 6 | S 6 |
 kJ | 7 | 28 | 28 | 7 | 15 | 15 | 27 | 25 | 7 | 7 | 44 | 36 | 37 | 35 | 26 | 27 | 27 | 112 | 76 | 64 | 50 | 37 | 37 | 27 |
Swell 2 Height (m) Direction Period (s) | — | SE 14 | SE 13 | — | SE 13 | SE 13 | SE 13 | SE 13 | — | E 16 | E 16 | SE 16 | SE 16 | SE 15 | SE 15 | SE 12 | SE 12 | SE 9 | SE 9 | SE 9 | SE 9 | SE 9 | SE 9 | SE 9 |
| kJ | — | 7 | 7 | — | 7 | 7 | 7 | 7 | — | 5 | 5 | 10 | 10 | 9 | 9 | 6 | 6 | 29 | 29 | 29 | 29 | 29 | 29 | 28 |
Swell 3 Height (m) Direction Period (s) | — | — | S 17 | E 17 | — | — | — | — | E 16 | SE 16 | — | — | — | E 12 | SE 16 | SE 15 | SE 15 | SE 12 | SE 12 | SE 15 | SE 15 | SE 14 | SE 15 | — |
| kJ | — | — | 6 | 5 | — | — | — | — | 5 | 10 | — | — | — | 3 | 9 | 9 | 9 | 6 | 6 | 8 | 8 | 8 | 8 | — |
Wind waves Height (m) Direction Period (s) | SSE 8 | S 4 | SSW 5 | S 5 | S 6 | S 6 | S 6 | S 6 | S 6 | S 6 | SSW 6 | SSW 7 | SSW 6 | SSW 6 | SSW 6 | SSW 6 | SSW 6 | SSW 6 | WNW 3 | NNW 3 | N 3 | N 3 | NNE 3 | — |
| kJ | 94 | 33 | 78 | 114 | 108 | 116 | 120 | 137 | 247 | 263 | 260 | 206 | 147 | 123 | 123 | 119 | 150 | 155 | 4 | 4 | 3 | 3 | 1 | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 789 | 153 | 770 | 326 | 326 | 277 | 59 | 961 | 62 | 153 | 59 | 319 | 277 | 59 | 62 | 65 | 41 | 21 | 6 | 0 | 0 | 0 | 0 | 556 |
Best forecast wave conditions in Long Island New York | ||||||||||||||||||||||||
Best forecast wave conditions in United States | ||||||||||||||||||||||||
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