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Robert Moses State Park Surf Forecast
/ Long Island NY (34 breaks) / New York (44 breaks) /
Surf Forecasts:
Robert Moses State Park surfForecast / Long Island NY / USA
48hr Weather and Surf, issued 1 am Sunday 17 May 2026 EDTForecast update in hr min s Forecast update imminent
Robert Moses State Park surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Robert Moses State Park sea temperature is
13.7° C
(Which is 2.3°C warmer than normal for this time of year)How big are the waves at Robert Moses State Park today?
The current surf forecast for Robert Moses State Park at 5AM is: 1.3m 6s primary swell from a South-southwest direction and 0.5m 8s secondary swell from a Southeast direction, 1.1m 6s secondary swell from a Southwest direction (forecast issued at 01:00am May 17). The wind direction is predicted to be cross-offshore.
| Time (EDT) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (17 May) | 4ft (1.2m) | 7s |
| Afternoon (17 May) | 3ft (0.9m) | 7s |
| Evening (17 May) | 4.5ft (1.3m) | 8s |
Table - waves today at Robert Moses State Park. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastLight rain (total 5mm), mostly falling on Mon night. Warm (max 26°C on Sun afternoon, min 18°C on Tue night). Winds increasing (calm on Sun night, fresh winds from the SSW by Tue night). | ||||||||||||||||||||||||
Sunday 17 | Monday 18 | Tuesday 19 | ||||||||||||||||||||||
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 | 5 PM | 8 PM | 11 PM | |
Swell Height Map |    |    |    | |||||||||||||||||||||
SSW 6 | SSW 6 | S 7 | S 7 | SSW 7 | S 8 | S 8 | SSE 8 | S 7 | SSE 8 | SSE 8 | SSE 8 | SE 8 | SSE 8 | SSE 8 | SSE 8 | SSW 5 | SSW 5 | SSW 6 | SSW 6 | SSW 6 | SSW 6 | SSW 6 | SSW 6 | |
155 | 139 | 153 | 147 | 82 | 160 | 191 | 81 | 155 | 39 | 39 | 75 | 28 | 58 | 58 | 75 | 42 | 60 | 67 | 69 | 80 | 126 | 255 | 341 | |
Wind (km/h) | ||||||||||||||||||||||||
cross | cross-off | cross-off | cross-off | cross-on | cross-on | cross-on | cross-on | cross | glassy | glassy | cross-on | on | on | on | on | cross-on | cross-on | cross | cross | cross-on | cross-on | cross-on | cross-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 | ||||||||||||||||||
 |  |  | | | | | | | |  | | | | |  |  | | |  | | | | | |
 | — | 5:33 | — | — | — | — | — | — | — | 5:33 | — | — | — | — | — | — | — | 5:33 | — | — | — | — | — | — |
 | — | — | — | — | — | — | 8:04 | — | — | — | — | — | — | — | 8:05 | — | — | — | — | — | — | — | 8:06 | — |
— | — | — | — | — | — | — | — | — | — | 1 | — | — | — | — | 1 | 2 | 1 | — | — | — | — | — | — | |
Temp °C | 17 | 19 | 19 | 23 | 26 | 25 | 25 | 25 | 24 | 22 | 20 | 21 | 21 | 22 | 19 | 19 | 22 | 21 | 21 | 24 | 26 | 25 | 23 | 21 |
13 | 16 | 18 | 22 | 23 | 22 | 22 | 23 | 24 | 23 | 21 | 21 | 21 | 21 | 19 | 18 | 22 | 20 | 21 | 24 | 24 | 21 | 18 | 16 | |
Swell 1 Height (m) Direction Period (s) | SE 8 | SSW 6 | S 7 | S 7 | SE 8 | SSE 8 | — | SSE 8 | S 7 | SSW 5 | S 6 | SSE 8 | SE 8 | — | ENE 4 | ENE 4 | SE 8 | SE 9 | SE 9 | SE 9 | SE 8 | SE 8 | SE 8 | SE 16 |
 kJ | 35 | 139 | 153 | 147 | 67 | 95 | — | 81 | 155 | 37 | 31 | 75 | 28 | — | 2 | 2 | 29 | 38 | 49 | 46 | 44 | 44 | 35 | 10 |
Swell 2 Height (m) Direction Period (s) | ESE 9 | SE 8 | ESE 8 | ESE 8 | E 8 | — | — | E 15 | E 15 | SSE 8 | SSE 8 | E 14 | S 5 | SE 14 | SE 14 | SE 13 | E 4 | — | — | SE 13 | SE 13 | SE 13 | SE 14 | E 13 |
| kJ | 26 | 35 | 24 | 12 | 5 | — | — | 4 | 4 | 39 | 39 | 4 | 13 | 7 | 7 | 7 | 1 | — | — | 7 | 7 | 7 | 7 | 3 |
Swell 3 Height (m) Direction Period (s) | E 8 | ESE 9 | ESE 8 | ESE 8 | — | — | — | E 15 | — | E 15 | E 15 | — | E 14 | — | — | S 17 | SE 13 | SE 13 | SE 13 | — | — | — | E 16 | — |
| kJ | 12 | 26 | 24 | 21 | — | — | — | 4 | — | 4 | 4 | — | 4 | — | — | 6 | 7 | 7 | 7 | — | — | — | 5 | — |
Wind waves Height (m) Direction Period (s) | SSW 6 | SW 6 | SW 6 | — | SSW 7 | S 8 | S 8 | SSW 5 | SSW 7 | — | — | — | — | SSE 8 | SSE 8 | SSE 8 | SSW 5 | SSW 5 | SSW 6 | SSW 6 | SSW 6 | SSW 6 | SSW 6 | SSW 6 |
| kJ | 155 | 82 | 54 | — | 82 | 160 | 191 | 56 | 102 | — | — | — | — | 58 | 58 | 75 | 42 | 60 | 67 | 69 | 80 | 126 | 255 | 341 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 65 | 35 | 0 | 0 | 127 | 64 | 64 | 35 | 26 | 0 | 0 | 6 | 785 | 785 | 785 | 785 | 257 | 69 | 66 | 66 | 963 | 367 | 316 | 64 |
Best forecast wave conditions in Long Island New York | ||||||||||||||||||||||||
Best forecast wave conditions in United States | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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