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Surf Forecasts:
Cupsogue surfForecast / Long Island NY / USA
48hr Weather and Surf, issued 12 pm Thursday 25 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
6.5° C
(Which is 1.8°C colder than average for this time of year)How big are the waves at Cupsogue today?
The current surf forecast for Cupsogue at 5PM is: 0.7m 6s primary swell from a South-southwest direction (forecast issued at 12:00pm December 25). An open ocean swell of 0.6m 10s is not directed at the surf break, a second open ocean swell of 0.5m 3s is not directed at the surf break. The wind direction is predicted to be offshore.
| Time (EST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (25 Dec) | 2.5ft (0.7m) | 4s |
| Afternoon (25 Dec) | 2.5ft (0.7m) | 6s |
| Evening (25 Dec) | 1.5ft (0.4m) | 6s |
Table - waves today at Cupsogue. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Thursday 25 | Friday 26 | Saturday 27 | Sunday 28 | |||||||||||||||||||||
| 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 | 10 PM | 1 AM | 4 AM | 7 AM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |    |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 4 | 5 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 7 | 4 | 4 | 5 | 6 | 6 | 6 | 6 | 6 | 7 | 7 | 7 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 14 | 49 | 29 | 13 | 7 | 4 | 4 | 4 | 3 | 1 | 3 | 11 | 1 | 10 | 38 | 97 | 89 | 61 | 74 | 1 | 1 | 4 | 4 | 3 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- off | cross- off | off | off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- on | on | on | cross- on | cross- on | cross- on | cross | cross | cross- off | cross- off | off | off | off | off |
High Tide / height (m) | 10:55AM 0.87 | 11:31PM 0.80 | 11:44AM 0.83 | 12:24AM 0.83 | 12:39PM 0.79 | 1:21AM 0.87 | ||||||||||||||||||
Low Tide / height (m) | 4:36PM -0.06 | 4:54AM 0.02 | 5:25PM -0.06 | 5:52AM 0.04 | 6:17PM -0.06 | 6:53AM 0.04 | ||||||||||||||||||
Thursday 25 | Friday 26 | Saturday 27 | Sunday 28 | |||||||||||||||||||||
| Sunrise | - | - | - | - | - | - | - | - | 7:13 | - | - | - | - | - | - | - | 7:13 | - | - | - | - | - | - | - |
| Sunset | - | - | 4:28 | - | - | - | - | - | - | - | 4:29 | - | - | - | - | - | - | - | 4:29 | - | - | - | - | - |
 | |  |  | | |  | | | | |  | | | | | | | | | | | | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 6 | 6 | 6 | 1 | -3 | -5 | -5 | -5 | -5 | -4 | -3 | -4 | -1 | 0 | 0 | 0 | -1 | -1 | 0 | -1 | -1 | -2 | -3 | -3 |
| Feels °C (?) | -4 | -3 | -3 | -10 | -13 | -15 | -14 | -13 | -12 | -10 | -9 | -9 | -7 | -7 | -8 | -9 | -9 | -8 | -6 | -6 | -6 | -8 | -9 | -9 |
- 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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