Surf Forecasts:
Cupsogue surf forecast from 6 Nov 2026:
- Best quality surf: Saturday 21 Nov, 1PM (local time) - 6ft (1.9m), 7s period, SSW swell with offshore winds.
- Most powerful swell: Saturday 21 Nov, 1PM (local time) - 6ft (1.9m), 7s period, SSW swell with 366 kJ wave energy.
- Next surfable swell (1★+): Friday 6 Nov, 7PM (local time) - 3.5ft (1.1m), 7s period with SE 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 Friday (Nov 06) at 7PM. The primary swell is predicted to be 1.1m and 7s period with a secondary swell of 0.9m and 6s. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Cupsogue in the next 16 days are 1.9m 7s and forecast to arrive on Saturday (Nov 21) at 1PM. Winds are predicted to be offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.6m 7s period and expected on Saturday (Nov 14) at 7PM.
| Wave Type | Time (EST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 7PM (Fri 6th Nov) | 3.5ft (1.1m) 7s |
| Best Surf | 1PM (Sat 21st Nov) | 6ft (1.9m) 7s |
| Most Powerful | 1PM (Sat 21st Nov) | 6ft (1.9m) 7s |
Table - best surf conditions forecast for Cupsogue over the next 16 days.
Short Range ForecastHeavy rain (total 31mm), heaviest during Fri afternoon. Very mild (max 17°C on Fri morning, min 9°C on Sat night). Winds increasing (calm on Fri afternoon, fresh winds from the WNW by Sat night). | Days 4-6 Weather SummaryMostly dry. Very mild (max 16°C on Tue afternoon, min 9°C on Mon night). Winds decreasing (strong winds from the NW on Mon afternoon, light winds from the NNW by Wed afternoon). | ||||||||||||||||||||
Friday 6 | Saturday 7 | Sunday 8 | Monday 9 | Tuesday 10 | Wednesday 11 | Thursday 12 | |||||||||||||||
AM | PM | 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) | SSE 6 | SE 7 | SSE 7 | SE 9 | SE 9 | SE 8 | SE 11 | SE 11 | SE 11 | SE 11 | SE 11 | SE 11 | SE 11 | SW 6 | SSW 6 | SSW 6 | SE 10 | SSW 6 | SSW 6 | SSW 5 | SE 9 |
Wave Graph  | |||||||||||||||||||||
 kJ | 134 | 106 | 93 | 79 | 109 | 64 | 31 | 76 | 97 | 75 | 75 | 75 | 76 | 184 | 39 | 22 | 15 | 12 | 6 | 3 | 3 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross | off | cross-off | cross-off | cross-off | off | cross-off | cross-off | off | off | cross-off | cross | cross-off | cross-off | off | cross | cross-off | off | cross-off |
High Tide | 5:14PM0.94m | 5:37AM1.09m | 5:58PM0.94m | 6:18AM1.11m | 6:40PM0.92m | 6:59AM1.11m | 7:21PM0.89m | 7:39AM1.10m | 8:03PM0.86m | 8:20AM1.07m | 8:45PM0.83m | 9:01AM1.03m | 9:29PM0.80m | ||||||||
Low Tide | 11:17AM0.09m | 11:06PM0.06m | 11:59AM0.06m | 11:40PM0.05m | 12:33PM0.05m | 00:12AM0.04m | 1:04PM0.04m | 00:46AM0.04m | 1:34PM0.04m | 1:21AM0.05m | 2:07PM0.05m | 1:57AM0.07m | 2:43PM0.07m | 2:37AM0.09m | |||||||
 | |  |  |  | | | |  | | | | | | | | | |  |  | | |
 | 6:26 | — | — | 6:26 | — | — | 6:28 | — | — | 6:30 | — | — | 6:31 | — | — | 6:31 | — | — | 6:33 | — | — |
 | — | 4:40 | — | — | 4:39 | — | — | 4:38 | — | — | 4:37 | — | — | 4:37 | — | — | 4:36 | — | — | 4:35 | — |
mm | 11 | 20 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | — | — |
Temp °C | 17 | 17 | 17 | 17 | 16 | 10 | 14 | 14 | 13 | 14 | 13 | 9 | 13 | 16 | 15 | 14 | 14 | 12 | 9 | 9 | 6 |
Feels °C | 14 | 15 | 16 | 13 | 9 | 2 | 7 | 8 | 6 | 4 | 3 | 2 | 5 | 9 | 9 | 8 | 10 | 9 | 4 | 3 | -2 |
Swell 1 Height (m) Direction Period (s) | — | SE 7 | SSE 7 | SE 9 | SE 9 | SE 8 | SE 8 | SE 11 | SE 11 | SE 11 | SE 11 | SE 11 | SE 11 | SSW 6 | SSW 6 | SSW 6 | SSW 6 | SSW 6 | SSW 6 | ESE 9 | SE 9 |
| kJ | — | 106 | 93 | 79 | 109 | 64 | 31 | 76 | 97 | 75 | 75 | 75 | 76 | 94 | 39 | 22 | 14 | 12 | 6 | 8 | 3 |
Swell 2 Height (m) Direction Period (s) | — | E 10 | SE 9 | S 6 | S 6 | SE 11 | SW 6 | SW 6 | SW 6 | SW 6 | SW 6 | SW 5 | E 11 | SE 11 | SE 10 | SE 10 | SE 10 | ESE 9 | ESE 9 | SSW 5 | S 5 |
| kJ | — | 2 | 29 | 26 | 24 | 19 | 13 | 5 | 20 | 17 | 11 | 4 | 2 | 57 | 36 | 25 | 15 | 8 | 8 | 3 | 1 |
Swell 3 Height (m) Direction Period (s) | — | — | SSE 6 | E 9 | — | S 7 | SE 11 | — | — | — | — | — | — | — | E 10 | E 10 | — | E 9 | — | — | E 12 |
| kJ | — | — | 32 | 2 | — | 4 | 30 | — | — | — | — | — | — | — | 2 | 2 | — | 2 | — | — | 3 |
Wind waves Height (m) Direction Period (s) | SSE 6 | SSW 6 | — | — | SW 4 | WSW 6 | WNW 3 | WNW 3 | WSW 3 | W 3 | W 3 | WNW 3 | SW 5 | SW 6 | WNW 2 | W 4 | SW 6 | — | NNE 3 | — | — |
| kJ | 134 | 82 | — | — | 10 | 44 | 9 | 2 | 2 | 5 | 5 | 1 | 21 | 184 | 1 | 10 | 39 | — | 1 | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 114 | 61 | 61 | 0 | 48 | 243 | 238 | 15 | 238 | 523 | 242 | 0 | 261 | 301 | 119 | 121 | 4 | 53 | 1453 | 1582 | 878 |
Best forecast wave conditions in Long Island New York | |||||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||||
Header Global | |||||||||||||||||||||
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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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