
Surf Forecasts:
Turtle Cove surf forecast from 7 Sep 2026:
- Best quality surf: Thursday 10 Sep, 11PM (local time) - 5ft (1.5m), 7s period, SSW swell with offshore winds.
- Most powerful swell: Thursday 10 Sep, 5AM (local time) - 7.5ft (2.3m), 7s period, SW swell with 471 kJ wave energy.
- Next surfable swell (1★+): Thursday 10 Sep, 11PM (local time) - 5ft (1.5m), 7s period with SSW swell.
Best Forecast Surf Conditions for Turtle Cove this week:
The surf forecast for Turtle Cove over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Thursday (Sep 10) at 11PM. The primary swell is predicted to be 1.5m and 7s period with a secondary swell of 0.3m and 10s. The wind is predicted to be offshore as the swell arrives.
The most powerful waves expected at Turtle Cove in the next 16 days are 2.3m 7s and forecast to arrive on Thursday (Sep 10) at 5AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.3m 5s period and expected on Wednesday (Sep 09) at 8PM.
| Wave Type | Time (EDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 11PM (Thu 10th Sep) | 5ft (1.5m) 7s |
| Best Surf | 11PM (Thu 10th Sep) | 5ft (1.5m) 7s |
| Most Powerful | 5AM (Thu 10th Sep) | 7.5ft (2.3m) 7s |
Table - best surf conditions forecast for Turtle Cove over the next 16 days.
The Lowdown
How’s it goin’, Rusty here. I’ve been through the numbers for Turtle Cove, and I’ll tell ya straight – we’re in for a long, quiet patch. The next sixteen days are mostly flat, with only a couple of moments that are even worth paddling out for. Don’t get your hopes up too high.
The pattern is weak overall. The combined swell energy stays mostly in the double digits – numbers like 41, 24, 17 (weak energy) – until we get a brief bump on September 10th. That bump is messy and short-period, so it’s not a good one. Water temp is 70°F, about average for this time of year near Turtle Cove, so the water’s fine, but the waves aren’t.
Let’s go day by day. Starting Monday the 7th and Tuesday the 8th of September, we’ve got tiny swell – 0.7 ft to 1 ft – with clean winds, cross-off and offshore. Combined energy is in the teens to low forties. Just not enough to ride. Wednesday the 9th is the same – small, weak, nothing.
Then Thursday the 10th of September brings a pulse: 7 ft from the SW in the morning, dropping to 6 ft in the afternoon. The combined energy hits 480 (moderate) in the morning and 296 (moderate) in the afternoon. Sounds big, right? But the period is only 7 seconds – that’s short-period, choppy, and weak for the size. Winds are fresh cross-off at 19-22 mph, so it’s clean, but the quality is poor. At over 5 ft, it’s expert-only and sloppy. Honestly, this looks more like a kiteboarding day than a paddle-surf day. Not a standout.
Friday the 11th of September fades fast. Morning has 3 ft swell, but combined energy is only 80 (weak). The afternoon is the first time we see “surfable waves” – 2 ft from the SSW with a 7-second period, and offshore wind from the W at 12 mph. Clean, but tiny and weak. That’s the best we’ve got, and it’s barely a session.
From Saturday the 12th through to Tuesday the 22nd, it’s a flat wasteland. Swell heights hang between 0.7 ft and 2 ft, with combined energy in the teens to low forties. Periods are mostly 8-10 seconds, occasionally hitting 12 seconds on the 19th, but with only 0.7 ft of swell, it’s not breaking. There’s a tiny blip on Friday the 18th afternoon with 2 ft swell and a 10-second period, combined energy 59 (weak), plus a light WSW breeze at 6 mph, keeping it clean. Again, just barely surfable. The rest of that stretch is plagued by onshore winds and lumpy conditions.
So the one true standout is Friday afternoon, September 11th. It’s not a classic, but it’s your best shot for a clean, surfable wave. Turtle Cove is a reef and point break, exposed to SE swell, and the optimum direction is SE, so that 2 ft from the SSW is a little off, but with offshore wind, you might get a few fun ones. Crowds are listed as “sometimes,” so expect a few folks.
There are no other highlights. It’s a long, flat run. With the forecast this poor and consistency low, a blank stretch like this is normal for the area – sometimes the ocean just goes quiet.
Keep your eyes on the charts, and I’ll catch ya down the line.
Rusty.
Short Range ForecastMostly dry. Warm (max 25°C on Mon afternoon, min 20°C on Mon night). Winds increasing (calm on Wed morning, strong winds from the SW by Wed night). | Days 5-7 Weather SummarySome drizzle, heaviest during Thu night. Warm (max 24°C on Thu afternoon, min 17°C on Sat morning). Mainly fresh winds. | |||||||||||||||||||
Mon 7 | Tuesday 8 | Wednesday 9 | Thursday 10 | Friday 11 | Saturday 12 | Sunday 13 | ||||||||||||||
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) | E 9 | E 9 | SSE 9 | SSE 9 | SE 9 | SE 10 | SE 10 | SW 7 | SW 7 | SSW 7 | SSW 7 | SSW 7 | SSW 6 | SSW 6 | SE 9 | SE 10 | SE 10 | SE 10 | SE 9 | SE 9 |
Wave Graph | ||||||||||||||||||||
16 | 15 | 8 | 8 | 12 | 4 | 15 | 434 | 418 | 224 | 153 | 82 | 44 | 22 | 14 | 14 | 15 | 33 | 31 | 51 | |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | cross-off | cross-off | cross-off | cross-off | cross | cross-off | cross-off | off | cross-off | cross-off | cross-off | cross-off | cross-on | on | cross-on | cross | cross | cross-off | cross-off |
High Tide | 5:44PM0.94m | 6:12AM0.83m | 6:39PM0.98m | 7:03AM0.91m | 7:27PM0.99m | 7:50AM0.98m | 8:11PM0.98m | 8:33AM1.02m | 8:51PM0.95m | 9:14AM1.04m | 9:28PM0.91m | 9:53AM1.02m | 10:02PM0.85m | |||||||
Low Tide | 11:59PM0.04m | 11:51AM0.04m | 00:44AM-0.01m | 12:46PM-0.02m | 1:24AM-0.04m | 1:34PM-0.05m | 2:00AM-0.05m | 2:19PM-0.05m | 2:34AM-0.05m | 3:01PM-0.04m | 3:07AM-0.03m | 3:41PM0.01m | 3:38AM0.01m | |||||||
— | — | 6:20 | — | — | 6:20 | — | — | 6:22 | — | — | 6:22 | — | — | 6:24 | — | — | 6:24 | — | — | |
7:09 | — | — | 7:08 | — | — | 7:07 | — | — | 7:05 | — | — | 7:04 | — | — | 7:01 | — | — | 7:00 | — | |
mm | — | — | — | — | — | — | — | — | — | — | 1 | — | — | — | — | — | — | — | — | — |
Temp °C | 25 | 25 | 21 | 24 | 25 | 22 | 23 | 23 | 23 | 24 | 23 | 20 | 23 | 23 | 19 | 21 | 21 | 22 | 22 | 22 |
Feels °C | 21 | 21 | 19 | 21 | 21 | 23 | 21 | 20 | 20 | 22 | 20 | 16 | 19 | 19 | 17 | 19 | 17 | 21 | 22 | 22 |
Swell 1 Height (m) Direction Period (s) | E 9 | E 9 | SW 4 | SSE 9 | SE 9 | SE 8 | SE 10 | SE 9 | SE 9 | SE 9 | SSW 7 | SSW 7 | SSW 6 | SSW 6 | SSW 6 | SE 10 | SE 10 | SE 10 | SE 9 | SE 9 |
16 | 15 | 3 | 8 | 12 | 3 | 15 | 12 | 13 | 14 | 153 | 82 | 44 | 22 | 6 | 14 | 15 | 33 | 31 | 51 | |
Swell 2 Height (m) Direction Period (s) | SSE 8 | SSE 8 | SSE 9 | E 9 | E 9 | SE 10 | E 9 | E 8 | E 8 | — | SE 10 | SE 10 | SE 10 | SSE 7 | SSE 6 | SSW 5 | E 3 | S 6 | SSE 5 | SSW 6 |
7 | 7 | 8 | 6 | 6 | 4 | 2 | 1 | 1 | — | 14 | 15 | 15 | 4 | 7 | 3 | 1 | 3 | 3 | 3 | |
Swell 3 Height (m) Direction Period (s) | S 5 | — | E 9 | — | S 6 | E 9 | — | — | — | — | — | — | — | ESE 9 | SE 9 | SSE 6 | — | SSW 6 | — | — |
1 | — | 6 | — | 1 | 2 | — | — | — | — | — | — | — | 8 | 14 | 4 | — | 4 | — | — | |
Wind waves Height (m) Direction Period (s) | WSW 3 | NW 2 | — | SW 3 | SW 4 | SW 4 | SW 5 | SW 7 | SW 7 | SSW 7 | — | NNW 4 | WNW 3 | N 2 | ENE 4 | ESE 3 | SSE 5 | S 3 | SSW 3 | SW 3 |
3 | 1 | — | 9 | 6 | 5 | 51 | 434 | 418 | 224 | — | 7 | 1 | 1 | 11 | 7 | 8 | 1 | 2 | 4 | |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 153 | 404 | 461 | 793 | 594 | 645 | 1090 | 1074 | 45 | 195 | 0 | 28 | 6 | 666 | 800 | 793 | 584 | 375 | 265 | 0 |
Best forecast wave conditions in Long Island New York | ||||||||||||||||||||
Best forecast wave conditions in United States | ||||||||||||||||||||
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Information about the Turtle Cove Surf forecast
The above surf forecast table for Turtle Cove provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Turtle Cove can be found by selecting the local surf guide option on the grey menu. Our Turtle Cove 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 (Turtle Cove) 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 Turtle Cove 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.
Turtle Cove is 34 km (21 miles) from Westerly. If you plan a vacation in Long Island New York, look for hotels and other accommodation in Westerly. Westerly has rooms for a wide range of budgets as well as car hire and transport links.










