- Forecast
- Maps
- Live
- Weather State
- Spot Information
Fortress Surf Forecast
/ Long Island NY (34 breaks) / New York (44 breaks) /
Surf Forecasts:
Fortress surfForecast / Long Island NY / USA
48hr Weather and Surf, issued 1 pm Sunday 17 May 2026 EDTForecast update in hr min s Forecast update imminent
Fortress surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Fortress sea temperature is
9.7° C
(Which is 1.4°C colder than average for this time of year)How big are the waves at Fortress today?
The current surf forecast for Fortress at 8PM is: 1.2m 8s primary swell from a South direction (forecast issued at 01:00pm 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) | 3.5ft (1.1m) | 8s |
| Evening (17 May) | 4ft (1.2m) | 8s |
Table - waves today at Fortress. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastMostly dry. Warm (max 25°C on Sun night, min 17°C on Mon morning). Winds increasing (light winds from the NW on Sun night, fresh winds from the SSW by Tue afternoon). | ||||||||||||||||||||||||
Sun 17 | Monday 18 | Tuesday 19 | Wed 20 | |||||||||||||||||||||
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 | 5 AM | 8 AM | |
Swell Height Map |    |    |    |    | ||||||||||||||||||||
S 7 | S 8 | S 8 | S 8 | S 8 | S 7 | S 7 | S 7 | SSE 7 | SSE 7 | SSW 6 | SE 7 | SSW 5 | SE 9 | SE 9 | SE 9 | SSW 6 | SSW 6 | SSW 6 | SSW 6 | SSW 6 | SSW 7 | SSW 7 | SSW 7 | |
131 | 138 | 137 | 168 | 187 | 130 | 106 | 43 | 48 | 48 | 36 | 26 | 31 | 37 | 38 | 39 | 40 | 53 | 77 | 114 | 155 | 189 | 200 | 168 | |
Wind (km/h) | ||||||||||||||||||||||||
off | cross-off | cross | cross-off | cross-off | off | cross-on | cross-on | on | cross-on | cross | cross | cross | cross-off | cross-off | cross-off | cross-off | cross-off | cross | cross-off | cross-off | cross-off | cross-off | cross-off | |
High Tide | 8:46AM0.82m | 9:05PM1.11m | 9:40AM0.83m | 9:59PM1.09m | 10:36AM0.82m | 10:54PM1.04m | ||||||||||||||||||
Low Tide | 2:18PM-0.12m | 3:25AM-0.13m | 3:08PM-0.10m | 4:18AM-0.11m | 4:02PM-0.06m | 5:13AM-0.07m | ||||||||||||||||||
 | | | |  |  | | |  | | | | | | | |  | | | | | | | | |
 | — | — | — | — | — | — | 5:26 | — | — | — | — | — | — | — | 5:26 | — | — | — | — | — | — | — | 5:24 | — |
 | — | — | — | 8:00 | — | — | — | — | — | — | — | 8:00 | — | — | — | — | — | — | — | 8:01 | — | — | — | 8:02 |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 20 | 23 | 24 | 25 | 23 | 21 | 20 | 17 | 18 | 18 | 20 | 20 | 21 | 18 | 22 | 20 | 24 | 24 | 23 | 20 | 22 | 21 | 18 | 19 |
19 | 21 | 19 | 20 | 19 | 21 | 19 | 14 | 16 | 18 | 18 | 18 | 19 | 15 | 20 | 17 | 21 | 20 | 18 | 15 | 20 | 17 | 14 | 15 | |
Swell 1 Height (m) Direction Period (s) | S 7 | S 8 | SSE 8 | — | — | S 7 | S 7 | S 7 | SSE 7 | SSE 7 | SE 7 | SE 7 | SE 8 | SE 9 | SE 9 | SE 9 | SE 9 | SE 8 | SE 8 | SE 8 | SE 8 | SE 9 | SE 9 | SE 9 |
 kJ | 131 | 138 | 71 | — | — | 130 | 106 | 43 | 48 | 48 | 27 | 26 | 28 | 37 | 38 | 38 | 36 | 35 | 25 | 41 | 24 | 26 | 28 | 29 |
Swell 2 Height (m) Direction Period (s) | SSW 6 | — | — | — | S 7 | — | — | SE 8 | SSW 6 | SSW 6 | ENE 4 | ENE 4 | — | — | SE 13 | SE 13 | SE 13 | E 13 | SE 16 | SE 16 | SE 16 | SE 16 | SE 16 | SE 15 |
| kJ | 74 | — | — | — | 26 | — | — | 29 | 15 | 14 | 1 | 1 | — | — | 7 | 7 | 7 | 3 | 10 | 10 | 10 | 10 | 10 | 9 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | S 7 | — | — | — | ENE 3 | S 18 | E 13 | SE 13 | SE 13 | — | — | — | S 16 | — | — | — | — | — | — |
| kJ | — | — | — | — | — | 38 | — | — | — | 1 | 6 | 4 | 7 | 7 | — | — | — | 5 | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | SW 7 | S 8 | S 8 | S 8 | SW 7 | — | — | ENE 3 | — | SSW 6 | SSW 4 | SSW 5 | SSW 5 | SSW 5 | SSW 5 | SSW 6 | SSW 6 | SSW 6 | SSW 6 | SSW 6 | SSW 7 | SSW 7 | SSW 7 |
| kJ | — | 63 | 137 | 168 | 187 | 103 | — | — | 1 | — | 36 | 26 | 31 | 31 | 35 | 39 | 40 | 53 | 77 | 114 | 155 | 189 | 200 | 168 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 0 | 9 | 38 | 61 | 9 | 0 | 25 | 68 | 414 | 668 | 668 | 668 | 303 | 227 | 185 | 204 | 308 | 185 | 185 | 183 | 38 | 68 | 68 | 38 |
Best forecast wave conditions in Long Island New York | ||||||||||||||||||||||||
Best forecast wave conditions in United States | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
- Map Icons:
Break
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 Fortress 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.
Nearest