Surf Forecasts:
Turtle Cove surf forecast from 12 Aug 2026:
- Best quality surf: Monday 17 Aug, 11AM (local time) - 6.5ft (2.0m), 7s period, SSW swell with offshore winds.
- Most powerful swell: Monday 17 Aug, 11AM (local time) - 6.5ft (2.0m), 7s period, SSW swell with 394 kJ wave energy.
- Next surfable swell (1★+): Monday 17 Aug, 11AM (local time) - 6.5ft (2.0m), 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 Monday (Aug 17) at 11AM. The primary swell is predicted to be 2.0m and 7s period. 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 11AM. Winds are predicted to be offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.5m 6s period and expected on Monday (Aug 17) at 2AM.
| Wave Type | Time (EDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 11AM (Mon 17th Aug) | 6.5ft (2.0m) 7s |
| Best Surf | 11AM (Mon 17th Aug) | 6.5ft (2.0m) 7s |
| Most Powerful | 11AM (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 what’s on the table for Turtle Cove.
Honestly, the next week and a half is a bit of a struggle. We’re looking at a long stretch of tiny, weak surf with nothing to get excited about. From Tuesday afternoon the 11th right through until late in the month, the waves are mostly below 3 ft, with combined energy readings barely scraping into the double digits or low hundreds – for example, just 9 (weak) on Tuesday afternoon. The water temp is sitting at 71°, which is right about average for this time of year, so no surprises there.
The first real glimmer of hope doesn’t show up until Monday the 17th. Finally, the swell kicks in. On Monday morning the 17th, we get a 7 ft SSW swell with a 7-second period, and the combined energy jumps to 394 (moderate). That’s a proper size for Turtle Cove, but at 7 ft it’s getting into the territory where only experienced surfers should be out there. The wind is offshore from the W at 12 mph, which should keep it pretty clean. The swell direction is from the SSW, and the guidance says the optimum direction for this spot is from the SE, so it’s not a perfect match, but the size and the offshore wind make it the standout session of the whole 16-day window. Monday afternoon holds onto 5 ft with a WSW wind, still clean.
After that, Tuesday the 18th offers a little leftover pulse at 3 ft in the morning with glassy conditions from the NNW, but it’s a drop-off in quality. The rest of the period fades back into small, weak surf.
So, if you’re a confident surfer, mark your calendar for Monday the 17th. That’s the only real shot at something worth paddling for. The rest of the time, it’s a flat spell. Keep an eye on the forecasts, though – it tends not to stay this quiet forever.
Rusty.
Short Range ForecastLight rain (total 5mm), mostly falling on Tue night. Warm (max 27°C on Tue afternoon, min 22°C on Tue night). Wind will be generally light. | Days 5-7 Weather SummaryModerate rain (total 12mm), heaviest on Sun night. Warm (max 25°C on Fri afternoon, min 18°C on Sat morning). Winds increasing (calm on Sun morning, strong winds from the SW by Sun night). | |||||||||||||||||||
Tue 11 | Wednesday 12 | Thursday 13 | Friday 14 | Saturday 15 | Sunday 16 | Monday 17 | ||||||||||||||
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) | ESE 9 | SSW 6 | SSW 5 | SSW 5 | SE 14 | SSW 5 | SSW 5 | SSW 5 | S 5 | S 5 | S 6 | S 7 | S 7 | S 7 | S 7 | S 7 | SE 8 | SSW 7 | SSW 7 | S 7 |
Wave Graph  | ||||||||||||||||||||
 kJ | 8 | 24 | 15 | 9 | 8 | 18 | 23 | 30 | 13 | 13 | 16 | 26 | 34 | 38 | 39 | 38 | 3 | 394 | 245 | 134 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | on | cross-off | cross-off | off | cross-off | cross-off | cross-off | cross-off | cross | cross | cross-off | cross | glassy | cross-off | cross-off | off | cross-off | cross |
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 | 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 | — | — | 5:54 | — | — | 5:54 | — | — | 5:56 | — | — | 5:56 | — | — | 5:58 | — | — |
 | 7:52 | — | — | 7:50 | — | — | 7:49 | — | — | 7:47 | — | — | 7:45 | — | — | 7:45 | — | — | 7:43 | — |
mm | — | 2 | 1 | — | — | — | — | 2 | — | — | — | — | — | — | — | — | 10 | 2 | — | — |
Temp °C | 27 | 27 | 23 | 24 | 25 | 24 | 25 | 26 | 24 | 25 | 21 | 20 | 25 | 25 | 20 | 23 | 23 | 23 | 27 | 25 |
Feels °C | 26 | 26 | 24 | 23 | 25 | 24 | 24 | 26 | 24 | 23 | 19 | 17 | 22 | 22 | 19 | 22 | 20 | 22 | 29 | 21 |
Swell 1 Height (m) Direction Period (s) | ESE 9 | SSW 6 | SSW 5 | SSW 5 | S 6 | SSW 5 | SSW 5 | SSW 5 | S 5 | S 5 | S 6 | S 7 | S 7 | S 7 | S 7 | SE 9 | SE 8 | — | SSW 7 | S 7 |
| kJ | 8 | 24 | 15 | 9 | 2 | 18 | 23 | 30 | 13 | 13 | 16 | 26 | 34 | 38 | 39 | 3 | 3 | — | 245 | 134 |
Swell 2 Height (m) Direction Period (s) | E 8 | SE 9 | SE 8 | ESE 8 | SE 8 | SE 8 | SE 10 | ESE 9 | ESE 9 | ESE 9 | SE 9 | SE 9 | NNE 4 | SE 9 | NNE 2 | SE 9 | — | — | — | SE 16 |
| kJ | 1 | 3 | 3 | 7 | 3 | 3 | 4 | 8 | 8 | 8 | 3 | 3 | 1 | 3 | 1 | 3 | — | — | — | 10 |
Swell 3 Height (m) Direction Period (s) | — | E 8 | — | SE 14 | SE 14 | SE 10 | SE 8 | SE 13 | SE 13 | SE 13 | — | NW 4 | SE 9 | — | SE 9 | NE 4 | — | — | — | — |
| kJ | — | 1 | — | 8 | 8 | 4 | 2 | 7 | 7 | 7 | — | 1 | 3 | — | 3 | 1 | — | — | — | — |
Wind waves Height (m) Direction Period (s) | SSW 6 | — | — | — | SW 4 | — | SSW 5 | — | — | NNW 3 | N 4 | N 4 | — | SSW 2 | N 3 | S 7 | SSW 6 | SSW 7 | — | NE 2 |
| kJ | 28 | — | — | — | 10 | — | 34 | — | — | 3 | 9 | 10 | — | 1 | 1 | 38 | 131 | 394 | — | 1 |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 2516 | 791 | 827 | 2562 | 666 | 25 | 2563 | 25 | 668 | 2564 | 791 | 169 | 183 | 25 | 25 | 1672 | 1162 | 0 | 0 | 24 |
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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