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Cupsogue Surf Forecast
/ Long Island NY (34 breaks) / New York (44 breaks) /
Surf Forecasts:
Cupsogue surfForecast / Long Island NY / USA
48hr Weather and Surf, issued 7 am Thursday 18 Sep 2025 EDT
How big are the waves at Cupsogue today?
The current surf forecast for Cupsogue at 1PM is: 0.2m 5s primary swell from a South direction (forecast issued at 07:00am September 18). An open ocean swell of 0.9m 7s is not directed at the surf break. The wind direction is predicted to be glassy.
| Time (EDT) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (18 Sep) | 0.5ft (0.2m) | 6s |
| Afternoon (18 Sep) | 0.5ft (0.2m) | 5s |
| Evening (18 Sep) | 2.5ft (0.8m) | 7s |
Table - waves today at Cupsogue. (Swell directed towards the surf break)
Thursday 18 | Friday 19 | Saturday 20 | Sun 21 | |||||||||||||||||||||
| 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 | 2 AM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |    |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 6 | 6 | 6 | 5 | 7 | 7 | 8 | 4 | 4 | 4 | 5 | 10 | 10 | 9 | 9 | 9 | 4 | 6 | 6 | 6 | 6 | 6 | 6 | 14 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 7 | 6 | 1 | 2 | 77 | 79 | 67 | 6 | 6 | 6 | 4 | 15 | 15 | 12 | 13 | 13 | 23 | 77 | 102 | 83 | 73 | 60 | 59 | 8 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- off | cross- off | cross- off | cross | cross | cross | cross- off | cross- off | off | off | glass | glass | cross | glass | cross- off | cross- off | cross | cross | cross- on | cross- on | cross- on | cross- on | on | cross- on |
High Tide / height (m) | 5:33AM 0.93 | 5:55PM 1.08 | 6:22AM 0.99 | 6:41PM 1.09 | 7:05AM 1.04 | 7:25PM 1.09 | ||||||||||||||||||
Low Tide / height (m) | 11:32AM 0.20 | 12:29AM 0.15 | 12:28PM 0.16 | 1:05AM 0.12 | 1:10PM 0.12 | 1:32AM 0.10 | ||||||||||||||||||
Thursday 18 | Friday 19 | Saturday 20 | Sun 21 | |||||||||||||||||||||
| Sunrise | - | 6:33 | - | - | - | - | - | - | - | 6:33 | - | - | - | - | - | - | - | 6:35 | - | - | - | - | - | - |
| Sunset | - | - | - | - | 6:54 | - | - | - | - | - | - | - | 6:52 | - | - | - | - | - | - | - | 6:52 | - | - | - |
 |  | |  | |  | | | | | | |  | | | | | | | | | | | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 18 | 18 | 19 | 22 | 22 | 21 | 21 | 21 | 21 | 21 | 23 | 24 | 25 | 24 | 21 | 18 | 17 | 16 | 17 | 18 | 18 | 17 | 17 | 17 |
| Feels °C (?) | 17 | 17 | 18 | 22 | 21 | 20 | 20 | 21 | 19 | 20 | 23 | 24 | 25 | 25 | 17 | 13 | 11 | 11 | 12 | 14 | 14 | 14 | 14 | 15 |
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Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
Recent Eyeball Surf Reports for Long Island NY
Continuing clean conditions at Cupsogue (light winds from the N.(Wind varies from 009 to 013 degs) at Westhampton Beach/Francis S. Gabreski Airport 11 km from Cupsogue). 0.3m 5s windswell from the SSW to make surfable waves.
1 h 44 min ago
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