Surf Forecasts:
Cupsogue surf forecast from 25 Sep 2026:
- Best quality surf: Thursday 1 Oct, 2AM (local time) - 3ft (0.9m), 5s period, SSW swell with offshore winds.
- Most powerful swell: Saturday 26 Sep, 11PM (local time) - 4.5ft (1.4m), 9s period, SE swell with 321 kJ wave energy.
- Next surfable swell (1★+): Thursday 1 Oct, 2AM (local time) - 3ft (0.9m), 5s period with SSW swell.
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 (Oct 01) at 2AM. The primary swell is predicted to be 0.9m and 5s period with a secondary swell of 0.3m and 12s. The wind is predicted to be offshore as the swell arrives.
The most powerful waves expected at Cupsogue in the next 16 days are 1.4m 9s and forecast to arrive on Saturday (Sep 26) at 11PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 4.0m 12s period and expected on Saturday (Sep 26) at 5AM.
| Wave Type | Time (EDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 2AM (Thu 1st Oct) | 3ft (0.9m) 5s |
| Best Surf | 2AM (Thu 1st Oct) | 3ft (0.9m) 5s |
| Most Powerful | 11PM (Sat 26th Sep) | 4.5ft (1.4m) 9s |
Table - best surf conditions forecast for Cupsogue over the next 16 days.
Short Range ForecastHeavy rain (total 85mm), heaviest during Sat night. Very mild (max 19°C on Sun morning, min 12°C on Thu night). Mainly gales. | Days 5-7 Weather SummaryLight rain (total 4mm), mostly falling on Sun night. Warm (max 21°C on Wed afternoon, min 13°C on Mon night). Winds decreasing (strong winds from the NE on Sun night, light winds from the NNW by Tue afternoon). | ||||||||||||||||||
Friday 25 | Saturday 26 | Sunday 27 | Monday 28 | Tuesday 29 | Wednesday 30 | ||||||||||||||
Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | |
Swell Height Map |  |  |  |  |  |  |  | ||||||||||||
Wave Height (m) Direction Period (s) | E 11 | ESE 12 | ESE 12 | E 12 | SSE 11 | ENE 11 | SE 9 | E 9 | ESE 8 | SE 8 | E 6 | SE 7 | SSW 6 | S 7 | SE 14 | SE 13 | SSE 7 | SE 13 | SSW 5 |
Wave Graph  | |||||||||||||||||||
 kJ | 0 | 0 | 0 | 0 | 176 | 0 | 118 | 0 | 0 | 62 | 141 | 13 | 8 | 4 | 8 | 7 | 7 | 27 | 37 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross-off | cross-off | cross | cross-off | cross-off | cross-off | cross-on | cross-on | cross-off | cross-off | cross-off | cross-off | cross-off | cross | cross-off | cross-off | cross | off |
High Tide | 7:08AM1.05m | 7:27PM1.08m | 7:48AM1.12m | 8:08PM1.09m | 8:29AM1.17m | 8:50PM1.08m | 9:12AM1.19m | 9:34PM1.05m | 9:56AM1.20m | 10:20PM1.01m | 10:44AM1.18m | 11:10PM0.95m | |||||||
Low Tide | 00:27AM0.10m | 12:45PM0.08m | 1:05AM0.04m | 1:29PM0.02m | 1:44AM-0.01m | 2:12PM-0.02m | 2:23AM-0.04m | 2:55PM-0.03m | 3:04AM-0.04m | 3:41PM-0.02m | 3:48AM-0.02m | 4:29PM0.02m | 4:35AM0.02m | ||||||
 |  |  |  | | | |  | |  |  | |  | | | |  | |  | |
 | — | 6:39 | — | — | 6:41 | — | — | 6:41 | — | — | 6:43 | — | — | 6:43 | — | — | 6:45 | — | — |
 | 6:45 | — | 6:43 | — | — | 6:42 | — | — | 6:39 | — | — | 6:37 | — | — | 6:36 | — | — | 6:35 | — |
mm | — | — | 6 | 15 | 9 | 9 | 41 | 3 | 2 | 3 | — | 1 | — | — | — | — | — | — | 7 |
Temp °C | 14 | 15 | 16 | 14 | 15 | 14 | 16 | 19 | 19 | 17 | 15 | 14 | 14 | 15 | 18 | 18 | 19 | 21 | 20 |
Feels °C | 6 | 6 | 6 | 2 | 4 | 3 | 4 | 9 | 13 | 11 | 9 | 7 | 8 | 13 | 17 | 16 | 17 | 18 | 18 |
Swell 1 Height (m) Direction Period (s) | ESE 11 | ESE 12 | ESE 12 | — | SSE 11 | E 11 | SE 9 | — | E 9 | SE 8 | ESE 9 | E 9 | ENE 6 | ESE 8 | E 8 | ESE 9 | E 9 | ESE 9 | E 8 |
| kJ | 1546 | 2100 | 2276 | — | 176 | 2207 | 118 | — | 27 | 62 | 29 | 39 | 43 | 39 | 51 | 42 | 39 | 26 | 12 |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | SW 5 | SW 5 | SE 7 | ESE 8 | E 6 | S 6 | SE 13 | SSE 7 | SE 13 | SE 12 |
| kJ | — | — | — | — | — | — | — | — | — | 1 | 1 | 13 | 41 | 18 | 3 | 7 | 4 | 27 | 24 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | SW 5 | S 16 | SSW 6 | SSW 6 | S 7 | SE 14 | S 8 | SE 13 | SSE 6 | — |
| kJ | — | — | — | — | — | — | — | — | — | 7 | 5 | 4 | 8 | 4 | 8 | 1 | 7 | 4 | — |
Wind waves Height (m) Direction Period (s) | E 11 | NE 6 | NE 6 | E 12 | E 11 | ENE 11 | ENE 8 | E 9 | ESE 8 | E 9 | E 6 | E 6 | ENE 6 | — | — | — | — | SSW 3 | SSW 5 |
| kJ | 2017 | 210 | 249 | 3806 | 3078 | 3217 | 755 | 1224 | 732 | 130 | 141 | 62 | 60 | — | — | — | — | 4 | 37 |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 327 | 900 | 776 | 762 | 762 | 762 | 244 | 242 | 145 | 527 | 1105 | 239 | 54 | 4 | 17 | 119 | 53 | 116 | 0 |
Best forecast wave conditions in Long Island New York | |||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||
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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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