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Surf Forecasts:
Cupsogue surfForecast / Long Island NY / USA
48hr Weather and Surf, issued 12 am Tuesday 16 Dec 2025 ESTForecast update in hr min s Forecast update imminent
Cupsogue surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Cupsogue sea temperature is
8.0° C
(Which is 1.2°C colder than average for this time of year)How big are the waves at Cupsogue today?
The current surf forecast for Cupsogue at 2AM is: 0.2m 11s primary swell from a South-southeast direction (forecast issued at 12:00am December 16). An open ocean swell of 0.1m 8s is not directed at the surf break, a second open ocean swell of 0.4m 5s is not directed at the surf break. The wind direction is predicted to be cross-offshore.
| Time (EST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (16 Dec) | 1ft (0.3m) | 11s |
| Afternoon (16 Dec) | 1ft (0.3m) | 11s |
| Evening (16 Dec) | 1ft (0.3m) | 10s |
Table - waves today at Cupsogue. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Tuesday 16 | Wednesday 17 | Thursday 18 | ||||||||||||||||||||||
| 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) (?) | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 10 | 5 | 5 | 6 | 6 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 11 | 5 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 11 | 11 | 11 | 19 | 19 | 19 | 19 | 18 | 18 | 25 | 44 | 80 | 118 | 186 | 197 | 331 | 117 | 97 | 73 | 54 | 37 | 78 | 29 | 47 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross | cross | cross | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- on | cross- on | cross- on | cross- on |
High Tide / height (m) | 4:39AM 0.91 | 4:59PM 0.72 | 5:21AM 0.94 | 5:42PM 0.73 | 6:02AM 0.96 | 6:25PM 0.73 | ||||||||||||||||||
Low Tide / height (m) | 9:34PM 0.10 | 11:06AM 0.12 | 10:17PM 0.08 | 11:40AM 0.09 | 10:59PM 0.06 | 12:11PM 0.05 | ||||||||||||||||||
Tuesday 16 | Wednesday 17 | Thursday 18 | ||||||||||||||||||||||
| Sunrise | - | - | - | - | 7:07 | - | - | - | - | - | - | - | 7:07 | - | - | - | - | - | - | - | 7:09 | - | - | - |
| Sunset | - | - | - | - | - | - | 4:23 | - | - | - | - | - | - | - | 4:23 | - | - | - | - | - | - | - | 4:23 | - |
 |  |  | |  | | | | | | | | |  | | | | | | |  | | | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | -3 | -3 | -4 | -3 | -3 | -1 | -1 | -1 | 0 | 1 | 4 | 6 | 6 | 6 | 6 | 4 | 3 | 3 | 3 | 3 | 4 | 6 | 8 | 10 |
| Feels °C (?) | -10 | -11 | -12 | -10 | -9 | -7 | -8 | -8 | -8 | -8 | -5 | -3 | -4 | -3 | -3 | -5 | -4 | -1 | -1 | -1 | 0 | 1 | 4 | 5 |
- 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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