Surf Forecasts:
Turtle Cove surf forecast from 13 Sep 2026:
- Best quality surf: Sunday 13 Sep, 2PM (local time) - 3.5ft (1.1m), 5s period, S swell with offshore winds.
- Most powerful swell: Sunday 20 Sep, 5AM (local time) - 7ft (2.2m), 7s period, SSW swell with 431 kJ wave energy.
- Next surfable swell (1★+): Sunday 13 Sep, 2PM (local time) - 3.5ft (1.1m), 5s 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 Sunday (Sep 13) at 2PM. The primary swell is predicted to be 1.1m and 5s period with a secondary swell of 0.4m and 9s. 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 2.2m 7s and forecast to arrive on Sunday (Sep 20) at 5AM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.8m 6s period and expected on Sunday (Sep 20) at 2AM.
| Wave Type | Time (EDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 2PM (Sun 13th Sep) | 3.5ft (1.1m) 5s |
| Best Surf | 2PM (Sun 13th Sep) | 3.5ft (1.1m) 5s |
| Most Powerful | 5AM (Sun 20th Sep) | 7ft (2.2m) 7s |
Table - best surf conditions forecast for Turtle Cove over the next 16 days.
The Lowdown
Right, let’s have a look at what’s on offer.
Honestly, mate, the outlook for Turtle Cove is a tough one. Right through this 16-day stretch, we’re mostly looking at a whole lot of nothing. There’s a long gap of total flatness or junk wind straight from the get-go. For the first 13 days, the surf’s basically a write-off. You’ve got a few tiny bumps on the 13th and 14th of September, but with strong cross-off winds and short-period, weak energy (67 and 124) they’re just not worth paddling out for. The water temp is sitting at 69°, which is about average for this time of year, so no surprises there.
We finally get a flicker of life on Saturday the 26th of September. It’s a noticeable change. The morning and afternoon both see a 3 ft swell coming from the ESE, with an offshore wind. The combined wave energy at Turtle Cove jumps into the moderate range at 144, which finally gives the place some push. The wind is offshore (W and WSW), so it’ll be clean. It’s not a standout for the ages, but after so many days of nothing, it’s the best we’ve got. The break itself is a reef and point, fairly consistent, so you can expect a few. The swell direction is coming from the ESE, which isn’t a perfect match for the optimum SE direction, but it’s close enough to wrap in. Crowds can be possible here, especially when the waves finally show up.
Then Sunday the 27th of September keeps the run going. The morning has a 3 ft ESE swell with a longer period of 11 seconds, and a gentle offshore wind. The energy is solid at 161, and it’s clean. This is the pick of the spell—a proper glassy morning. The afternoon turns a bit cross-off, but still worth a look.
From the 28th onwards, it’s back to onshore junk and messy conditions, so make the most of that weekend window.
Honestly, if that Saturday and Sunday morning don’t deliver, the whole 16 days is a bust. It’s a quiet spell for this area.
Rusty.
Short Range ForecastHeavy rain (total 21mm), heaviest during Sun morning. Warm (max 23°C on Sun night, min 14°C on Tue morning). Mainly fresh winds. | Days 4-6 Weather SummaryLight rain (total 3mm), mostly falling on Thu night. Warm (max 21°C on Thu afternoon, min 15°C on Thu night). Winds increasing (light winds from the SW on Wed morning, fresh winds from the NNE by Thu night). | ||||||||||||||||||||
Sunday 13 | Monday 14 | Tuesday 15 | Wednesday 16 | Thursday 17 | Friday 18 | Saturday 19 | |||||||||||||||
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 5 | S 6 | SSE 6 | SE 9 | SE 8 | SE 9 | ENE 5 | E 4 | E 6 | ESE 5 | E 8 | E 8 | E 8 | ESE 7 | ENE 4 | ENE 5 | ENE 5 | SE 12 | ESE 7 | ESE 7 | ESE 7 |
Wave Graph  | |||||||||||||||||||||
 kJ | 34 | 62 | 45 | 20 | 35 | 26 | 34 | 15 | 21 | 6 | 29 | 30 | 29 | 18 | 32 | 77 | 42 | 30 | 56 | 42 | 29 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | cross-off | cross-off | cross-off | cross-on | cross-on | cross-on | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-on | cross-on | cross-on | cross-on | cross-on | on | on |
High Tide | 9:53AM1.02m | 10:02PM0.85m | 10:31AM0.98m | 10:34PM0.79m | 11:08AM0.92m | 11:06PM0.73m | 11:46AM0.85m | 11:40PM0.67m | 12:26PM0.79m | 00:22AM0.62m | 1:16PM0.74m | 1:14AM0.59m | 2:31PM0.70m | 2:28AM0.57m | |||||||
Low Tide | 3:41PM0.01m | 3:38AM0.01m | 4:20PM0.06m | 4:11AM0.06m | 4:59PM0.13m | 4:46AM0.11m | 5:42PM0.20m | 5:24AM0.17m | 6:31PM0.27m | 6:08AM0.23m | 7:37PM0.31m | 7:03AM0.27m | 9:21PM0.31m | ||||||||
 |  |  |  |  | | | |  | | | | |  |  | | | | | | | |
 | 6:24 | — | — | 6:26 | — | — | 6:26 | — | — | 6:28 | — | — | 6:28 | — | — | 6:30 | — | — | 6:31 | — | — |
 | — | 7:00 | — | — | 6:59 | — | — | 6:57 | — | — | 6:54 | — | — | 6:52 | — | — | 6:52 | — | — | 6:50 | — |
mm | 16 | 5 | — | — | — | — | — | — | — | — | — | — | — | — | 3 | — | — | — | — | — | — |
Temp °C | 22 | 22 | 23 | 19 | 23 | 20 | 15 | 16 | 16 | 17 | 18 | 19 | 20 | 21 | 19 | 18 | 19 | 18 | 17 | 17 | 17 |
Feels °C | 22 | 23 | 23 | 14 | 17 | 14 | 12 | 14 | 15 | 17 | 17 | 17 | 18 | 19 | 18 | 14 | 15 | 13 | 11 | 11 | 12 |
Swell 1 Height (m) Direction Period (s) | SE 10 | S 6 | SSE 6 | SSW 5 | SE 8 | SE 9 | SE 9 | ESE 9 | E 6 | ESE 5 | E 8 | E 8 | E 8 | ESE 7 | ESE 7 | ESE 12 | ESE 12 | ESE 5 | ESE 7 | ESE 7 | ESE 7 |
| kJ | 33 | 62 | 45 | 9 | 35 | 19 | 13 | 8 | 21 | 6 | 29 | 30 | 29 | 18 | 5 | 14 | 14 | 30 | 56 | 42 | 29 |
Swell 2 Height (m) Direction Period (s) | — | SE 9 | SE 9 | SE 6 | SSW 6 | S 6 | S 6 | S 6 | ESE 9 | E 7 | SE 9 | SE 13 | SE 12 | SW 4 | SE 12 | SE 9 | ESE 9 | SE 12 | ESE 12 | ESE 11 | ESE 11 |
| kJ | — | 31 | 29 | 9 | 11 | 3 | 7 | 3 | 8 | 4 | 3 | 7 | 6 | 2 | 6 | 3 | 8 | 21 | 13 | 13 | 12 |
Swell 3 Height (m) Direction Period (s) | — | SE 9 | S 10 | SE 9 | — | S 15 | — | E 7 | SE 14 | SE 9 | SE 13 | — | SE 9 | SE 12 | SE 9 | — | — | ESE 8 | — | — | — |
| kJ | — | 31 | 2 | 20 | — | 4 | — | 4 | 7 | 3 | 7 | — | 3 | 6 | 3 | — | — | 7 | — | — | — |
Wind waves Height (m) Direction Period (s) | S 5 | — | — | NNW 3 | NW 3 | NE 4 | ENE 5 | E 4 | — | — | SW 2 | SW 3 | SW 4 | NE 2 | ENE 4 | ENE 5 | ENE 5 | — | — | S 3 | SSW 6 |
| kJ | 34 | — | — | 9 | 2 | 26 | 34 | 15 | — | — | 1 | 3 | 6 | 1 | 32 | 77 | 42 | — | — | 4 | 208 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 93 | 0 | 197 | 28 | 222 | 219 | 791 | 791 | 393 | 197 | 1107 | 184 | 152 | 25 | 387 | 222 | 791 | 211 | 1162 | 1681 | 27 |
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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