Surf Forecasts:
Turtle Cove surf forecast from 11 Aug 2026:
- Best quality surf: Monday 17 Aug, 8AM (local time) - 7.5ft (2.3m), 8s period, SSW swell with offshore winds.
- Most powerful swell: Monday 17 Aug, 8AM (local time) - 7.5ft (2.3m), 8s period, SSW swell with 607 kJ wave energy.
- Next surfable swell (1★+): Thursday 13 Aug, 11AM (local time) - 3.5ft (1.1m), 6s period with SW 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 (Aug 13) at 11AM. The primary swell is predicted to be 1.1m and 6s period with a secondary swell of 0.1m and 8s. 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 8s and forecast to arrive on Monday (Aug 17) 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 1.9m 6s period and expected on Sunday (Aug 16) at 11PM.
| Wave Type | Time (EDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 11AM (Thu 13th Aug) | 3.5ft (1.1m) 6s |
| Best Surf | 8AM (Mon 17th Aug) | 7.5ft (2.3m) 8s |
| Most Powerful | 8AM (Mon 17th Aug) | 7.5ft (2.3m) 8s |
Table - best surf conditions forecast for Turtle Cove over the next 16 days.
The Lowdown
Alright, grab a coffee and listen up. It’s Rusty here, and I’ve been staring at the charts for Turtle Cove. Gotta be straight with you – it’s a rough stretch ahead. The next 16 days are looking pretty bleak for a proper paddle, with only a couple of windows where it might be worth a look.
We start off with a long, dry spell. From Tuesday the 11th right through to Saturday the 16th, it’s basically a write-off. We’re talking tiny, short-period slop with heights barely scraping 2 feet and combined wave energy in the weak zone (under 100). The wind is mostly cross-off or offshore, which keeps the water clean, but there’s just no push. No energy, no shape, just a whole lot of nothing. The water temp is sitting right on average for the time of year at 71°, so that’s not the issue—the lack of swell is.
Then we get a glimmer. Monday the 17th morning is the standout, and it’s the only real chance for a surfable wave. A solid 7 feet SSW swell rolls in, with a period of 8 seconds and combined energy jumping to 597 (moderate to strong). That’s a decent amount of water moving. The wind is a clean cross-off from the WNW at 12 mph, which will keep the faces tidy. Now, because it’s a reef and point setup, that SSW direction is sweet – it’s hitting the optimum. Just a heads up, at 7 feet, this is getting into the territory where it’s for the more experienced crew. Beginners might find it a bit much. The afternoon drops to 6 feet, still clean but with a bit more wind, so go for the morning session.
After that, we’re back to the doldrums. Tuesday the 18th through to the end of the period on the 26th is mostly more of the same: poor surf, tiny swells, and a lot of cross-onshore or cross-shore breezes. There’s a faint pulse on the morning of Thursday the 22nd with a 4 feet SSW swell and energy at 152 (moderate), but the wind is a moderate breeze, and the forecast calls it “poor surf conditions.” Not worth getting excited about. The week of the 18th to the 26th is just a long, flat slog.
Honestly, if you’re desperate, Monday the 17th morning is your only play. Get out there early, because that’s the one and only highlight in a very quiet 16 days.
Rusty.
Short Range ForecastLight rain (total 8mm), mostly falling on Wed morning. Warm (max 27°C on Tue night, min 20°C on Wed morning). Wind will be generally light. | Days 4-6 Weather SummaryHeavy rain (total 24mm), heaviest during Sun night. Warm (max 27°C on Fri afternoon, min 18°C on Sat morning). Winds increasing (light winds from the S on Sat afternoon, strong winds from the SW by Sun night). | ||||||||||||||||||||
Tuesday 11 | Wednesday 12 | Thursday 13 | Friday 14 | Saturday 15 | Sunday 16 | Monday 17 | |||||||||||||||
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) | S 6 | ESE 9 | SSW 5 | SSW 5 | SSW 5 | ESE 8 | SW 6 | SE 13 | SSW 6 | S 5 | ESE 9 | S 6 | S 6 | S 7 | S 8 | S 7 | SSE 8 | SSW 7 | SSW 8 | SSW 8 | S 8 |
Wave Graph  | |||||||||||||||||||||
 kJ | 23 | 8 | 26 | 16 | 11 | 8 | 85 | 7 | 27 | 14 | 8 | 19 | 19 | 38 | 55 | 40 | 7 | 384 | 597 | 353 | 138 |
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-off | off | cross-off | cross-off | cross-off | cross-off | cross | cross-on | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-on |
High Tide | 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 | 11:52AM0.93m | 11:48PM0.74m | ||||||||
Low Tide | 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 | 5:39PM0.12m | ||||||||
 | |  |  | | |  | |  |  | | | | | | | |  | | |  | |
 | 5:52 | — | — | 5:52 | — | — | 5:54 | — | — | 5:54 | — | — | 5:56 | — | — | 5:56 | — | — | 5:58 | — | — |
 | — | 7:52 | — | — | 7:50 | — | — | 7:49 | — | — | 7:47 | — | — | 7:45 | — | — | 7:45 | — | — | 7:43 | — |
mm | — | — | 2 | 2 | — | 1 | 2 | 1 | — | — | — | — | — | — | — | — | — | 24 | 1 | — | — |
Temp °C | 24 | 26 | 27 | 21 | 24 | 24 | 23 | 25 | 26 | 22 | 27 | 26 | 20 | 21 | 22 | 23 | 23 | 24 | 23 | 28 | 25 |
Feels °C | 25 | 26 | 27 | 22 | 22 | 23 | 22 | 23 | 26 | 19 | 23 | 22 | 19 | 19 | 20 | 21 | 19 | 21 | 23 | 26 | 24 |
Swell 1 Height (m) Direction Period (s) | S 6 | ESE 9 | SSW 5 | SSW 5 | SSW 5 | ESE 8 | SW 6 | SE 8 | SSW 6 | S 5 | ESE 9 | S 6 | S 6 | S 7 | S 8 | S 7 | SSE 8 | — | SSW 8 | SSW 8 | S 8 |
| kJ | 23 | 8 | 26 | 16 | 11 | 7 | 85 | 3 | 27 | 14 | 8 | 19 | 19 | 38 | 55 | 40 | 7 | — | 597 | 353 | 138 |
Swell 2 Height (m) Direction Period (s) | SE 9 | E 8 | SE 9 | SE 8 | ESE 8 | SE 14 | SE 8 | SE 10 | ESE 9 | ESE 9 | SE 13 | SE 9 | SE 9 | ENE 5 | ESE 9 | ESE 9 | — | — | — | — | W 5 |
| kJ | 3 | 1 | 3 | 3 | 7 | 8 | 3 | 4 | 8 | 9 | 7 | 3 | 3 | 5 | 8 | 7 | — | — | — | — | 2 |
Swell 3 Height (m) Direction Period (s) | E 8 | — | S 15 | SE 11 | — | E 11 | SE 14 | SE 13 | SE 13 | SE 13 | SE 13 | — | E 12 | SE 9 | E 4 | — | — | — | — | — | — |
| kJ | 1 | — | 4 | 5 | — | 2 | 7 | 7 | 7 | 7 | 7 | — | 3 | 3 | 1 | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | SSW 6 | — | — | — | SSW 4 | — | SW 6 | NW 2 | NNW 3 | SSW 5 | NNE 3 | NNE 4 | — | SW 2 | SW 3 | SSW 4 | SSW 7 | — | WNW 4 | NNW 4 |
| kJ | — | 25 | — | — | — | 18 | — | 49 | 1 | 1 | 32 | 3 | 11 | — | 1 | 1 | 32 | 384 | — | 13 | 11 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 3421 | 2516 | 791 | 2386 | 3421 | 657 | 0 | 257 | 25 | 657 | 657 | 657 | 791 | 800 | 793 | 1163 | 2576 | 192 | 0 | 24 | 26 |
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.
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