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Cupsogue Surf Forecast
/ Long Island NY (34 breaks) / New York (44 breaks) /
Cupsogue surfForecast / Long Island NY / USA
12 Day Weather and Surf, issued 1 pm Sunday 18 May 2025 EDT
Best Forecast Surf Conditions for Cupsogue this week:
The surf forecast for Cupsogue over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Saturday (May 24) at 8PM. The primary swell is predicted to be 4ft and 5s period with a secondary swell of 2ft and 5s. Another secondary swell of 1ft and 7s is also forecast. The wind is predicted to be offshore as the swell arrives.
The most powerful waves expected at Cupsogue in the next 12 days are 5ft 6s and forecast to arrive on Wednesday (May 21) at 11PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 10ft 10s period and expected on Thursday (May 22) at 5PM.
| Wave Type | Time (EDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 8PM (Sat 24th May) | 3.5ft (1.1m) 5s |
| Best Surf | 8PM (Sat 24th May) | 3.5ft (1.1m) 5s |
| Most Powerful | 11PM (Wed 21st May) | 5ft (1.5m) 6s |
Table - best surf conditions forecast for Cupsogue over the next 12 days.
Sun 18 | Monday 19 | Tuesday 20 | Wednesday 21 | Thursday 22 | Friday 23 | Saturday 24 | Sunday 25 | Monday 26 | Tuesday 27 | Wednesday 28 | Thursday 29 | Fri 30 | ||||||||||||||||||||||||
| PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | |
Rating (10 max) | ||||||||||||||||||||||||||||||||||||
Swell Height Map |  |  |  |  |  |  |  |  |  |  |  |  |  | |||||||||||||||||||||||
| Wave Height (ft) & direction (?) | ||||||||||||||||||||||||||||||||||||
| Period(s) (?) | 8 | 7 | 7 | 8 | 7 | 7 | 8 | 9 | 5 | 5 | 6 | 9 | 10 | 9 | 8 | 8 | 9 | 7 | 5 | 6 | 8 | 8 | 8 | 8 | 8 | 8 | 9 | 9 | 9 | 9 | 6 | 7 | 7 | 7 | 7 | 7 |
Wave (?)Graph  | ||||||||||||||||||||||||||||||||||||
| Energy (?) | 110 | 65 | 25 | 17 | 11 | 5 | 7 | 13 | 34 | 78 | 0 | 0 | 0 | 24 | 21 | 22 | 24 | 15 | 21 | 28 | 11 | 11 | 11 | 10 | 11 | 11 | 12 | 12 | 12 | 12 | 155 | 106 | 80 | 77 | 94 | 69 |
Wind (mph) | ||||||||||||||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- off | off | off | cross- off | off | cross- off | cross | cross- on | cross- on | cross- on | cross- on | cross | cross- off | cross- off | off | cross- off | off | off | off | cross- off | cross- off | cross | cross- off | cross- off | cross- on | cross- on | on | cross- on | cross- on | cross | cross- off | cross- off | off | off | off | off |
High Tide / height (ft) | 12:45AM 3.12 | 1:26PM 2.72 | 1:42AM 3.05 | 2:25PM 2.85 | 2:43AM 3.02 | 3:24PM 3.08 | 3:44AM 3.08 | 4:20PM 3.38 | 4:41AM 3.15 | 5:14PM 3.67 | 5:36AM 3.22 | 6:05PM 3.94 | 6:29AM 3.28 | 6:56PM 4.13 | 7:21AM 3.31 | 7:46PM 4.23 | 8:14AM 3.31 | 8:37PM 4.23 | 9:07AM 3.25 | 9:29PM 4.13 | 10:01AM 3.18 | 10:21PM 3.97 | 10:55AM 3.08 | |||||||||||||
Low Tide / height (ft) | 5:43PM 0.52 | 6:29AM 0.36 | 6:42PM 0.56 | 7:24AM 0.33 | 7:45PM 0.52 | 8:20AM 0.26 | 8:50PM 0.46 | 9:16AM 0.16 | 9:55PM 0.33 | 10:12AM 0.03 | 10:58PM 0.16 | 11:07AM -0.1 | 11:59PM 0 | 12:01PM -0.2 | 12:57AM -0.13 | 12:54PM -0.23 | 1:51AM -0.2 | 1:45PM -0.23 | 2:42AM -0.2 | 2:35PM -0.13 | 3:32AM -0.13 | 3:24PM 0.03 | 4:22AM 0 | |||||||||||||
Sun 18 | Monday 19 | Tuesday 20 | Wednesday 21 | Thursday 22 | Friday 23 | Saturday 24 | Sunday 25 | Monday 26 | Tuesday 27 | Wednesday 28 | Thursday 29 | Fri 30 | ||||||||||||||||||||||||
| Sunrise | - | - | 5:30 | - | - | 5:28 | - | - | 5:28 | - | - | 5:26 | - | - | 5:26 | - | - | 5:26 | - | - | 5:24 | - | - | 5:24 | - | - | 5:24 | - | - | 5:22 | - | - | 5:22 | - | - | 5:22 |
| Sunset | 8:02 | - | - | 8:04 | - | - | 8:05 | - | - | 8:06 | - | - | 8:07 | - | - | 8:07 | - | - | 8:08 | - | - | 8:09 | - | - | 8:09 | - | - | 8:10 | - | - | 8:12 | - | - | 8:13 | - | - |
 |  |  | | | | |  |  | |  | |  |  | | | | | |  | | | | | |  | | | |  |  | | | | | | |
Rain (in) | - | - | - | - | - | - | - | - | 0.0 | 0.2 | 0.3 | 0.1 | - | 0.1 | - | - | - | - | 0.0 | - | - | - | - | - | - | 0.0 | - | - | 0.1 | 0.9 | 0.1 | - | - | - | - | - |
| Temp. °F | 68 | 64 | 61 | 68 | 64 | 54 | 59 | 55 | 52 | 52 | 54 | 52 | 50 | 48 | 50 | 55 | 55 | 54 | 57 | 54 | 57 | 64 | 61 | 64 | 66 | 63 | 59 | 61 | 61 | 57 | 59 | 59 | 61 | 61 | 59 | 57 |
| Feels °F (?) | 61 | 55 | 50 | 55 | 52 | 45 | 54 | 50 | 41 | 37 | 39 | 34 | 36 | 37 | 43 | 46 | 48 | 45 | 48 | 45 | 50 | 61 | 54 | 59 | 61 | 57 | 57 | 55 | 55 | 46 | 50 | 54 | 50 | 46 | 48 | 48 |
Short Range Forecast: Some drizzle, heaviest during Wed morning. Warm (max 68°F on Sun afternoon, min 50°F on Mon night). Winds increasing (light winds from the ENE on Tue afternoon, fresh winds from the E by Wed morning). | Days 3-6 Weather Summary Moderate rain (total 0.7in), heaviest on Wed afternoon. Very mild (max 55°F on Fri afternoon, min 46°F on Thu night). Winds decreasing (strong winds from the ENE on Wed night, light winds from the NW by Fri morning). | Days 6-9 Weather Summary Light rain (total 0.1in), mostly falling on Sat afternoon. Very mild (max 66°F on Mon afternoon, min 48°F on Sat night). Wind will be generally light. | Long Range Forecast: Heavy rain (total 1.1in), heaviest during Wed morning. Very mild (max 64°F on Fri afternoon, min 52°F on Thu night). Mainly near gales. | |||||||||||||||||||||||||||||||||
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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 Cupsogue 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.
Information about the Cupsogue Surf forecast
The above surf forecast table for Cupsogue provides essential information for determining whether the surfing conditions will be good over the next 12 days. A general guide to surfing at Cupsogue can be found by selecting the local surf guide option on the grey menu. Our Cupsogue surf forecast is unique since it includes wave energy (power) that defines the real feel of the surf rather than just the height or the period. If you surf the same spot (Cupsogue) regularly then make a mental note of the wave energy from the surf forecast table each time you go. Very soon you may start to choose your surf days based on the wave energy alone combined with our forecast of favourable offshore wind conditions. Our star ratings will help here and of course you will also find the usual wave height and period predictions on our surf forecasts as well as a full break down of the swell components under our advanced users option (to reveal that, click the little Einstein character under the tide times).
Further information to help with frequently asked questions about our surf forecast for Cupsogue may be found under the help tab on the top menu and also by moving your mouse over the question marks on the surf forecast table itself. Please always bear in mind that the forecast is for near-shore open water and local factors at each surf break influence the actual breaking wave height, such as the beach / reef profile, water depths offshore and shelter.
Cupsogue is 12 km (7 miles) from Mastic. If you plan a vacation in Long Island New York, look for hotels and other accommodation in Mastic. Mastic has rooms for a wide range of budgets as well as car hire and transport links.
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