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Cupsogue Surf Forecast
/ Long Island NY (34 breaks) / New York (44 breaks) /
Surf Forecasts:
Cupsogue surfForecast / Long Island NY / USA
16 Day Weather and Surf, issued 7 pm Wednesday 13 May 2026 EDTForecast 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
11.6° C
(Which is slightly warmer than usual)Best Forecast Surf Conditions for Cupsogue this week:
The surf forecast for Cupsogue over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Thursday (May 14) at 11AM. The primary swell is predicted to be 1.1m and 6s period. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Cupsogue in the next 16 days are 1.5m 10s and forecast to arrive on Friday (May 15) at 8AM. Winds are predicted to be offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.3m 10s period and expected on Friday (May 15) at 2PM.
| Wave Type | Time (EDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 11AM (Thu 14th May) | 3.5ft (1.1m) 6s |
| Best Surf | 8AM (Fri 15th May) | 5ft (1.5m) 10s |
| Most Powerful | 8AM (Fri 15th May) | 5ft (1.5m) 10s |
Table - best surf conditions forecast for Cupsogue over the next 16 days.
Updates in hr min s Forecast update imminent
Short Range ForecastHeavy rain (total 20mm), heaviest during Thu morning. Very mild (max 17°C on Sat morning, min 11°C on Thu night). Winds decreasing (fresh winds from the S on Wed night, calm by Thu morning). | Days 5-7 Weather SummaryLight rain (total 5mm), mostly falling on Sun afternoon. Warm (max 22°C on Sun night, min 12°C on Mon afternoon). Wind will be generally light. | ||||||||||||||||||||
Thursday 14 | Friday 15 | Saturday 16 | Sunday 17 | Monday 18 | Tuesday 19 | Wed 20 | |||||||||||||||
Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | |
Swell Height Map |  |  |  |  |  |  |  |  | |||||||||||||
SSE 6 | SSE 6 | SSE 6 | SSE 7 | SE 10 | SSE 9 | SE 10 | S 8 | SSE 9 | SSW 5 | SE 8 | S 8 | S 7 | SSE 8 | SSE 8 | SE 8 | SE 9 | SE 9 | SE 9 | SE 9 | SE 9 | |
113 | 71 | 46 | 91 | 348 | 82 | 92 | 46 | 61 | 39 | 55 | 121 | 67 | 41 | 39 | 29 | 36 | 41 | 41 | 51 | 40 | |
Wind (km/h) | |||||||||||||||||||||
cross-on | glassy | cross | off | off | off | cross-on | cross-off | cross | cross | cross | cross-off | cross-off | cross-on | on | cross-on | cross | cross | cross | off | cross-off | |
High Tide | 6:00AM0.97m | 6:26PM1.17m | 6:49AM0.99m | 7:14PM1.24m | 7:39AM1.01m | 8:03PM1.28m | 8:31AM1.01m | 8:54PM1.29m | 9:24AM1.00m | 9:46PM1.27m | 10:19AM0.98m | 10:40PM1.22m | 11:15AM0.96m | ||||||||
Low Tide | 11:19PM0.05m | 11:29AM-0.01m | 00:16AM-0.01m | 12:20PM-0.06m | 1:10AM-0.05m | 1:11PM-0.09m | 2:01AM-0.09m | 2:00PM-0.09m | 2:52AM-0.09m | 2:50PM-0.07m | 3:43AM-0.07m | 3:42PM-0.02m | 4:36AM-0.03m | 4:36PM0.04m | |||||||
 |  |  |  |  |  |  |  | | | | | | | | | | | | |  | |
 | — | 5:35 | — | — | 5:33 | — | — | 5:33 | — | — | 5:31 | — | — | 5:31 | — | — | 5:30 | — | — | 5:28 | — |
 | 7:58 | — | 7:59 | — | — | 8:00 | — | — | 8:00 | — | — | 8:01 | — | — | 8:02 | — | — | 8:04 | — | — | 8:05 |
1 | 10 | 9 | — | — | — | — | — | — | — | — | 5 | — | — | — | — | — | — | 5 | — | 5 | |
Temp °C | 14 | 12 | 13 | 13 | 12 | 15 | 13 | 17 | 17 | 17 | 19 | 21 | 22 | 17 | 14 | 16 | 19 | 19 | 22 | 19 | 16 |
8 | 10 | 13 | 11 | 9 | 13 | 10 | 13 | 11 | 14 | 15 | 18 | 23 | 15 | 12 | 16 | 17 | 17 | 21 | 19 | 16 | |
Swell 1 Height (m) Direction Period (s) | ESE 10 | SSE 6 | SSE 6 | SSE 7 | SE 10 | ESE 10 | SE 10 | ESE 9 | SSE 9 | SSE 8 | SE 8 | S 8 | S 7 | SSE 8 | SSE 8 | SE 8 | SE 9 | SE 9 | SE 9 | S 5 | S 5 |
 kJ | 10 | 71 | 46 | 91 | 348 | 231 | 92 | 64 | 61 | 39 | 55 | 121 | 67 | 41 | 39 | 29 | 36 | 41 | 41 | 27 | 28 |
Swell 2 Height (m) Direction Period (s) | E 7 | ESE 10 | ESE 6 | E 5 | S 9 | SSE 9 | ESE 9 | S 8 | ESE 9 | ESE 9 | S 5 | — | SSE 8 | S 7 | S 7 | SSW 7 | SE 13 | SE 13 | SE 16 | SE 9 | SE 9 |
| kJ | 4 | 10 | 28 | 8 | 79 | 82 | 88 | 46 | 45 | 25 | 17 | — | 43 | 37 | 26 | 15 | 7 | 7 | 10 | 51 | 40 |
Swell 3 Height (m) Direction Period (s) | — | E 6 | ESE 10 | SE 9 | SW 6 | SW 5 | S 8 | SSE 10 | — | — | — | — | S 15 | — | S 14 | E 4 | S 16 | S 16 | SE 16 | SE 15 | SE 15 |
| kJ | — | 3 | 9 | 22 | 11 | 1 | 34 | 39 | — | — | — | — | 4 | — | 4 | 2 | 5 | 5 | 10 | 9 | 8 |
Wind waves Height (m) Direction Period (s) | SSE 6 | — | — | — | — | WSW 4 | — | SW 5 | SSW 4 | SSW 5 | SSW 5 | S 7 | — | E 3 | ESE 4 | SE 4 | SSE 5 | S 4 | S 5 | SSW 5 | — |
| kJ | 113 | — | — | — | — | 7 | — | 4 | 12 | 36 | 26 | 103 | — | 1 | 5 | 4 | 23 | 19 | 41 | 37 | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 119 | 0 | 20 | 0 | 0 | 0 | 48 | 76 | 226 | 77 | 116 | 0 | 0 | 112 | 735 | 282 | 116 | 1180 | 116 | 0 | 0 |
Best forecast wave conditions in Long Island New York | |||||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||||
Header Global | |||||||||||||||||||||
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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 16 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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