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Surf Forecasts:
Fortress surfForecast / Long Island NY / USA
48hr Weather and Surf, issued 12 am Saturday 06 Dec 2025 ESTForecast 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
10.4° C
(Which is normal for this time of year)How big are the waves at Fortress today?
The current surf forecast for Fortress at 4AM is: 0.4m 10s primary swell from a Southeast direction and 0.1m 6s secondary swell from a South direction (forecast issued at 12:00am December 06). The wind direction is predicted to be onshore.
| Time (EST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (06 Dec) | 1.5ft (0.4m) | 9s |
| Afternoon (06 Dec) | 1.5ft (0.4m) | 9s |
| Evening (06 Dec) | 2ft (0.6m) | 8s |
Table - waves today at Fortress. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Saturday 06 | Sunday 07 | Monday 08 | ||||||||||||||||||||||
| 10 PM | 1 AM | 4 AM | 7 AM | 10 AM | 1 PM | 4 PM | 7 PM | 10 PM | 1 AM | 4 AM | 7 AM | 10 AM | 1 PM | 4 PM | 7 PM | 10 PM | 1 AM | 4 AM | 7 AM | 10 AM | 1 PM | 4 PM | 7 PM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |  |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 10 | 10 | 10 | 10 | 9 | 9 | 9 | 9 | 8 | 8 | 8 | 8 | 8 | 8 | 9 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 23 | 23 | 23 | 23 | 23 | 22 | 29 | 39 | 41 | 50 | 53 | 45 | 62 | 64 | 67 | 64 | 54 | 38 | 26 | 22 | 13 | 13 | 6 | 6 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- on | on | on | on | cross- off | cross- off | cross- off | off | off | off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | off | off | cross- off | cross- off | cross- off | cross- off | cross- off |
High Tide / height (m) | 8:00PM 0.81 | 8:21AM 1.06 | 8:54PM 0.81 | 9:15AM 1.01 | 9:49PM 0.81 | 10:08AM 0.94 | ||||||||||||||||||
Low Tide / height (m) | 1:28AM -0.14 | 2:35PM -0.15 | 2:20AM -0.11 | 3:27PM -0.12 | 3:14AM -0.06 | 4:19PM -0.07 | ||||||||||||||||||
Saturday 06 | Sunday 07 | Monday 08 | ||||||||||||||||||||||
| Sunrise | - | - | - | 6:56 | - | - | - | - | - | - | - | 6:58 | - | - | - | - | - | - | - | 6:58 | - | - | - | - |
| Sunset | - | - | - | - | - | - | 4:19 | - | - | - | - | - | - | - | 4:19 | - | - | - | - | - | - | - | 4:19 | - |
 | | |  | | | |  | | | |  | | | | | |  | |  | | | | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 3 | 3 | 4 | 5 | 4 | 5 | 5 | 4 | 4 | 3 | 3 | 2 | 2 | 3 | 4 | 4 | 4 | 4 | 2 | -2 | -4 | -3 | -3 | -4 |
| Feels °C (?) | -1 | -1 | 0 | 2 | 0 | 0 | -1 | -4 | -4 | -3 | -2 | -4 | -2 | -1 | -2 | -4 | -5 | -6 | -10 | -15 | -15 | -14 | -13 | -12 |
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
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