
Surf Forecasts:
Turtle Cove surf forecast from 10 Aug 2026:
- Best quality surf: Monday 17 Aug, 5PM (local time) - 6.5ft (2.0m), 7s period, SSW swell with offshore winds.
- Most powerful swell: Monday 17 Aug, 5PM (local time) - 6.5ft (2.0m), 7s period, SSW swell with 342 kJ wave energy.
- Next surfable swell (1★+): Friday 14 Aug, 2AM (local time) - 3.5ft (1.0m), 6s period with S 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 Friday (Aug 14) at 2AM. The primary swell is predicted to be 1.0m and 6s period with a secondary swell of 0.1m 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 2.0m 7s and forecast to arrive on Monday (Aug 17) at 5PM. 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 6s period and expected on Monday (Aug 17) at 8AM.
| Wave Type | Time (EDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 2AM (Fri 14th Aug) | 3.5ft (1.0m) 6s |
| Best Surf | 5PM (Mon 17th Aug) | 6.5ft (2.0m) 7s |
| Most Powerful | 5PM (Mon 17th Aug) | 6.5ft (2.0m) 7s |
Table - best surf conditions forecast for Turtle Cove over the next 16 days.
The Lowdown
Alright, Rusty here. Let’s have a look at this 16-day stretch. I gotta be straight with you – the outlook for Turtle Cove (reef and point) is mostly a flat, quiet picture, with a couple of late-period flashes that might get the heart beating if you’re patient.
For the first week and a half, it’s a long, drawn-out gap. From Monday the 10th right through to Sunday the 16th of August, there’s nothing worth paddling out for. The swell is tiny – we’re talking 0.3ft to 3ft, with weak energy readings between 4 and 41, and short, weak periods. Winds are often cross-off or offshore, keeping the water clean, but without any real waves you’re just looking at a flat lake. It’s frustrating, but that’s how it goes sometimes.
Then, around Monday the 17th, we start to see something stirring. Monday afternoon brings a new pulse of swell: 7ft from the SSW, with a combined energy of 359 (moderate) and clean offshore west winds. The period is short at 7 seconds, so it’s a bit of a windswell bump, not a smooth groundswell. Still, it’s the first real rideable surf in over a week. That afternoon window is the standout of the whole period—clean, with enough size to get a few fun ones. It’s intermediate-friendly but getting close to that 8ft mark, so watch the bigger sets.
Tuesday the 18th and Wednesday the 19th see some leftover energy, but the swell drops back to 2ft to 3ft. The combined energy stays moderate (235 to 475), with a very long period creeping in—up to 17 seconds on Wednesday afternoon. That’s a pure groundswell, and at a reef and point set-up like Turtle Cove, it can produce some nice, lined-up waves. But the sizes are marginal, and the wind is cross or cross-on, so it’s not firing. A couple of those sessions are “marginal” at best.
From Thursday the 20th onward, we get more wind, more size (4ft to 5ft on the 20th and 21st), and moderate combined energy (241 to 348), but the wind stays cross-off from the SW and SSW, and the period stays short. The surf is there, but it’s not well-shaped—more of a choppy, wind-affected mess. By the 22nd, it’s back to small, weak, and onshore. The last few days of the window (23rd to 25th) are flat and poor again.
Water temps are around 72°F with a tiny anomaly of +0.2°F – pretty much average for this time of year, nothing to write home about.
So, the one true standout is Monday afternoon, August 17th. That’s the best on offer: 7ft SSW swell, clean offshore wind, and moderate energy. It’s not perfect, but after such a long dry spell, it’ll feel like a gift. Get it while it’s there, because the rest of the window is quiet or messy. Signs off - Rusty.
Short Range ForecastModerate rain (total 13mm), heaviest on Tue night. Warm (max 26°C on Mon afternoon, min 22°C on Mon night). Winds decreasing (fresh winds from the WSW on Mon night, light winds from the ENE by Thu morning). | Days 5-7 Weather SummarySome drizzle, heaviest during Thu night. Warm (max 25°C on Fri afternoon, min 18°C on Fri night). Winds decreasing (strong winds from the WNW on Fri morning, light winds from the WNW by Sun morning). | |||||||||||||||||||
Mon 10 | Tuesday 11 | Wednesday 12 | Thursday 13 | Friday 14 | Saturday 15 | Sunday 16 | ||||||||||||||
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) | SE 10 | S 6 | SSW 6 | SE 9 | SSW 6 | S 6 | S 5 | SSW 6 | SE 14 | SE 13 | S 6 | S 5 | SSE 7 | S 7 | S 6 | S 7 | S 7 | S 7 | S 7 | SSE 8 |
Wave Graph | ||||||||||||||||||||
4 | 18 | 36 | 3 | 25 | 15 | 15 | 20 | 7 | 7 | 66 | 20 | 15 | 32 | 21 | 38 | 38 | 36 | 24 | 7 | |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | off | off | cross-off | cross-off | cross-on | cross-off | off | cross-on | cross-off | off | cross-off | cross-off | cross-off | cross-off | off | cross | off | cross-off | cross-off |
High Tide | 6:49PM1.02m | 7:18AM0.85m | 7:42PM1.05m | 8:09AM0.92m | 8:30PM1.05m | 8:57AM0.98m | 9:15PM1.02m | 9:42AM1.00m | 9:57PM0.97m | 10:26AM1.00m | 10:37PM0.90m | 11:09AM0.98m | 11:13PM0.82m | |||||||
Low Tide | 1:04AM-0.03m | 12:50PM-0.04m | 1:49AM-0.08m | 1:44PM-0.07m | 2:30AM-0.10m | 2:34PM-0.08m | 3:10AM-0.09m | 3:22PM-0.05m | 3:46AM-0.07m | 4:08PM-0.01m | 4:21AM-0.02m | 4:53PM0.05m | 4:55AM0.03m | |||||||
— | — | 5:52 | — | — | 5:52 | — | — | 5:54 | — | — | 5:54 | — | — | 5:56 | — | — | 5:56 | — | — | |
7:52 | — | — | 7:52 | — | — | 7:50 | — | — | 7:49 | — | — | 7:47 | — | — | 7:45 | — | — | 7:45 | — | |
mm | — | 1 | — | — | 11 | — | — | — | 1 | — | 1 | — | — | — | — | — | — | — | — | 1 |
Temp °C | 26 | 26 | 24 | 26 | 23 | 23 | 25 | 25 | 24 | 24 | 24 | 22 | 25 | 24 | 21 | 24 | 24 | 20 | 22 | 24 |
Feels °C | 25 | 26 | 25 | 27 | 22 | 22 | 22 | 23 | 26 | 24 | 24 | 14 | 19 | 18 | 17 | 20 | 21 | 19 | 17 | 22 |
Swell 1 Height (m) Direction Period (s) | SE 10 | S 6 | SSW 6 | SE 9 | SSW 6 | S 6 | S 5 | SSW 6 | SE 8 | SE 10 | S 6 | S 5 | SSE 7 | S 7 | S 6 | S 7 | S 7 | S 7 | S 7 | SSE 8 |
4 | 18 | 36 | 3 | 25 | 15 | 15 | 20 | 3 | 4 | 66 | 20 | 15 | 32 | 21 | 38 | 38 | 36 | 24 | 7 | |
Swell 2 Height (m) Direction Period (s) | E 8 | SE 10 | SE 9 | E 8 | SE 9 | SE 8 | ENE 3 | SE 8 | SE 10 | SE 8 | SE 10 | SE 10 | SE 9 | SE 9 | NE 4 | SE 9 | SE 9 | SE 9 | SE 8 | — |
1 | 4 | 3 | 1 | 3 | 3 | 1 | 3 | 4 | 3 | 4 | 4 | 3 | 3 | 2 | 3 | 3 | 3 | 3 | — | |
Swell 3 Height (m) Direction Period (s) | E 8 | E 8 | E 8 | — | — | SE 11 | ESE 8 | — | SE 14 | SE 13 | SE 13 | SE 13 | SE 13 | — | SE 9 | — | — | — | — | — |
1 | 1 | 1 | — | — | 5 | 7 | — | 7 | 7 | 7 | 7 | 7 | — | 3 | — | — | — | — | — | |
Wind waves Height (m) Direction Period (s) | S 5 | W 2 | W 5 | SSW 6 | — | NE 4 | — | — | SSW 6 | S 4 | — | WNW 4 | WSW 4 | N 3 | NNW 3 | WNW 3 | — | — | SW 2 | SSW 5 |
13 | 1 | 7 | 36 | — | 6 | — | — | 32 | 18 | — | 18 | 16 | 8 | 1 | 1 | — | — | 1 | 107 | |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 397 | 413 | 25 | 2516 | 684 | 791 | 3353 | 6 | 793 | 2562 | 0 | 731 | 3412 | 828 | 657 | 657 | 61 | 668 | 1074 | 265 |
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.











