Surf Forecasts:
Turtle Cove surf forecast from 11 Aug 2026:
- Best quality surf: Monday 17 Aug, 2PM (local time) - 6ft (1.8m), 8s period, SSW swell with offshore winds.
- Most powerful swell: Monday 17 Aug, 8AM (local time) - 7ft (2.2m), 7s period, SSW swell with 484 kJ wave energy.
- Next surfable swell (1★+): Saturday 15 Aug, 5PM (local time) - 2.5ft (0.7m), 8s 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 Saturday (Aug 15) at 5PM. The primary swell is predicted to be 0.7m and 8s period. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Turtle Cove in the next 16 days are 2.2m 7s 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 1.3m 5s period and expected on Sunday (Aug 16) at 11PM.
| Wave Type | Time (EDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 5PM (Sat 15th Aug) | 2.5ft (0.7m) 8s |
| Best Surf | 2PM (Mon 17th Aug) | 6ft (1.8m) 8s |
| Most Powerful | 8AM (Mon 17th Aug) | 7ft (2.2m) 7s |
Table - best surf conditions forecast for Turtle Cove over the next 16 days.
The Lowdown
Alright, let’s get into it. This is Rusty, looking at the next two weeks.
First up, we’ve got Turtle Cove, a reef and point set-up. Water temps here are feeling about average for the time of year. Don’t get too excited just yet because the early part of this run is a real struggle. The first few days offer only small, short-period scraps with poor surf conditions. Through Tuesday the 11th and Wednesday the 12th, we’re looking at tiny waves, mostly under 2ft, with a messy, weak energy reading rarely cracking 30 (29). It’s pretty flat and not worth paddling out for.
We get a little lift around Thursday the 13th morning with a 3ft SSW pulse, still short period though, and the combined energy is only moderate (54). It’s clean, but barely surfable. Friday the 14th drops back down into the doldrums with strong onshore winds making a mess of things. Honestly, the first whole week is pretty grim—gap after gap of small, weak surf.
Now, here’s where it gets interesting. Monday the 17th morning brings a real change. The swell jumps to a solid 7ft from the SSW with a short period. The combined energy vaults into a strong range (426). That’s a proper surge of power, and it’s blowing moderate offshore from the WNW. It’s going to be a lot of moving water – that size is for the experienced crew, beginners should sit this one out. The afternoon drops slightly to 5ft (300 energy) but it stays clean. This is the standout window for the whole outlook—big, powerful, and clean at a reef break. Expect crowds to be possible here as word gets out.
After that, we get a quiet reset with some weak, period-challenged SE swells that just don’t have the grunt. There is a glimmer on Thursday the 20th morning with a 3ft SE swell, moderate offshore WSW wind, and the energy reading is strong (202). It’s described as “expect good surf conditions”, which is a nice change of pace. A clean, waist-high option for the intermediates.
The very end of the run, Tuesday the 25th afternoon, throws up a surprise. Over 6ft of SSW swell, but with a short period, under glassy conditions. The energy hits a strong 299. This could be another tidy session for the confident surfer, though still a long way out so treat it as a promising possibility.
So, to sum it up: the first week is dead. The real standout is Monday the 17th morning with that strong 7ft SSW swell and clean offshore wind. If you can handle the size and the crowd, that’s the day.
Rusty.
Short Range ForecastLight rain (total 2mm), mostly falling on Tue night. Warm (max 26°C on Mon night, min 22°C on Mon night). Wind will be generally light. | Days 5-7 Weather SummarySome drizzle, heaviest during Thu night. Warm (max 25°C on Fri afternoon, min 17°C on Sat morning). Winds decreasing (fresh winds from the NNW on Fri night, light winds from the SW by Sat afternoon). | ||||||||||||||||||
Tuesday 11 | Wednesday 12 | Thursday 13 | Friday 14 | Saturday 15 | Sunday 16 | ||||||||||||||
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 | SSW 6 | ESE 9 | SSW 5 | S 5 | SSW 5 | SSW 6 | SSW 6 | SE 13 | ESE 9 | S 5 | S 5 | S 8 | S 8 | S 8 | S 7 | S 7 | S 7 | S 6 |
Wave Graph  | |||||||||||||||||||
 kJ | 18 | 25 | 8 | 17 | 15 | 9 | 31 | 47 | 7 | 8 | 17 | 18 | 55 | 72 | 54 | 39 | 37 | 24 | 279 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | off | cross-off | cross-off | glassy | cross-off | off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off |
High Tide | 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 | — | — | — | 1 | — | 1 | — | — | — | — | — | — | — | — | 4 |
Temp °C | 26 | 24 | 26 | 26 | 23 | 25 | 25 | 25 | 23 | 24 | 23 | 25 | 23 | 20 | 23 | 23 | 22 | 23 | 24 |
Feels °C | 25 | 25 | 25 | 27 | 23 | 22 | 22 | 24 | 22 | 23 | 17 | 19 | 17 | 14 | 21 | 21 | 22 | 21 | 20 |
Swell 1 Height (m) Direction Period (s) | S 6 | SSW 6 | ESE 9 | SSW 5 | S 5 | SSW 5 | SSW 6 | SSW 6 | SE 8 | ESE 9 | S 5 | S 5 | S 8 | S 8 | S 8 | S 7 | S 7 | S 7 | — |
| kJ | 18 | 25 | 8 | 17 | 15 | 9 | 31 | 47 | 3 | 8 | 17 | 18 | 55 | 72 | 54 | 39 | 37 | 24 | — |
Swell 2 Height (m) Direction Period (s) | SE 10 | SE 9 | — | SE 9 | SE 8 | ESE 8 | SE 8 | SE 8 | SE 10 | SE 13 | ESE 9 | NE 3 | SE 9 | SE 9 | — | SE 9 | SE 9 | SE 8 | — |
| kJ | 4 | 3 | — | 3 | 3 | 7 | 3 | 3 | 4 | 7 | 8 | 2 | 13 | 3 | — | 3 | 3 | 3 | — |
Swell 3 Height (m) Direction Period (s) | E 8 | E 8 | E 8 | — | SE 11 | ENE 3 | SE 14 | SE 10 | SE 13 | E 7 | SE 13 | ESE 9 | — | NE 4 | SE 9 | NE 6 | — | — | — |
| kJ | 1 | 1 | 1 | — | 5 | 1 | 8 | 4 | 7 | 1 | 7 | 8 | — | 1 | 3 | 1 | — | — | — |
Wind waves Height (m) Direction Period (s) | — | — | SSW 6 | — | NE 3 | SW 2 | — | SW 6 | SSW 5 | S 5 | NNE 3 | — | NNW 4 | N 3 | — | — | — | — | S 6 |
| kJ | — | — | 18 | — | 1 | 1 | — | 86 | 42 | 34 | 6 | — | 11 | 3 | — | — | — | — | 279 |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 657 | 892 | 2516 | 791 | 793 | 1090 | 714 | 2581 | 1686 | 791 | 731 | 825 | 30 | 26 | 0 | 6 | 666 | 1162 | 1154 |
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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