Surf Forecasts:
Turtle Cove surf forecast from 4 Sep 2026:
- Most powerful swell: Thursday 10 Sep, 5AM (local time) - 8ft (2.5m), 7s period, SW swell with 741 kJ wave energy.
Best Forecast Surf Conditions for Turtle Cove this week:
The most powerful waves expected at Turtle Cove in the next 16 days are 2.5m 7s and forecast to arrive on Thursday (Sep 10) at 5AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.7m 6s period and expected on Wednesday (Sep 09) at 5PM.
| Wave Type | Time (EDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 5AM (Thu 10th Sep) | 8ft (2.5m) 7s |
Table - best surf conditions forecast for Turtle Cove over the next 16 days.
The Lowdown
G’day, Rusty here. Look, I’ll be straight with you – the next couple of weeks at Turtle Cove are a real mixed bag, and mostly a flat, quiet one. We’ve got a long stretch of small, weak stuff ahead, with only one real spike of energy that might get the heart pumping. The water temp is sitting right around average for this time of year at 69°, so nothing weird there.
Right now, and for the next several days, it’s pretty grim. From Friday the 4th all the way through to Wednesday the 9th, we’re looking at tiny waves, mostly under 2 ft, with weak energy readings (33 down to a measly 9). The winds are all over the place – offshore, cross-off, cross-shore – but it doesn’t matter because there’s just no swell to work with. The surf is flat and poor, so leave the board at home.
Then comes Thursday the 10th. That’s the one standout in the whole period. Thursday morning sees a sudden jump to 8 ft from the SW, with a short period of 8 seconds. The combined energy is a solid 1086 – that’s strong wave energy, and it’s going to feel powerful. The wind is blowing fresh offshore from the WNW, which will keep it clean. For Turtle Cove, a reef and point setup, this is a legit window. The swell direction is SW, and the optimum for this break is SE, so it’s a bit off-angle, but still, the size and the offshore wind make it the best on offer. That said, at 8 ft, this is definitely for experienced surfers only – beginners should sit this one out.
After that, it drops back down. Thursday afternoon sees 5 ft, but the energy drops to 291, and the wind turns cross-off. Friday the 11th through to the weekend is back to small, weak surf, mostly under 4 ft and with energy readings below 100. There’s a brief moment on Saturday the 12th afternoon with 4 ft from the E and a light offshore breeze, but it’s only a 1 out of 10 – surfable, but nothing to get excited about.
Sunday the 13th has a glassy morning with 2 ft from the ESE – that’s clean, but tiny. The rest of the second week is a dead zone of tiny swell, weak energy, and mostly poor conditions. Not much to report.
So, bottom line: if you’re an experienced surfer, clear your morning for Thursday the 10th. That’s your one shot at something real. Otherwise, it’s a long wait.
Rusty.
Short Range ForecastSome drizzle, heaviest during Sat afternoon. Warm (max 27°C on Fri afternoon, min 17°C on Sat night). Wind will be generally light. | Days 5-7 Weather SummarySome drizzle, heaviest during Wed night. Warm (max 25°C on Tue afternoon, min 20°C on Mon night). Winds increasing (light winds from the WSW on Tue night, near gales from the SW by Wed night). | |||||||||||||||||||
Fri 4 | Saturday 5 | Sunday 6 | Monday 7 | Tuesday 8 | Wednesday 9 | Thursday 10 | ||||||||||||||
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 8 | SE 8 | SE 8 | SE 8 | E 5 | E 7 | E 8 | E 10 | E 10 | E 9 | E 10 | E 10 | E 9 | SSE 9 | SE 10 | SE 10 | SW 7 | SW 8 | SSW 7 | SSW 7 |
Wave Graph  | ||||||||||||||||||||
 kJ | 17 | 16 | 9 | 9 | 25 | 15 | 29 | 31 | 16 | 15 | 16 | 7 | 7 | 8 | 4 | 15 | 612 | 605 | 263 | 84 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | cross-off | cross | cross-on | cross-on | cross-on | cross-off | cross-off | cross-off | cross-off | cross-off | off | cross-off | off | cross-off | cross-off | cross-off | off | cross-off | cross |
High Tide | 2:24AM0.66m | 3:10PM0.89m | 3:53AM0.69m | 4:36PM0.91m | 5:11AM0.75m | 5:44PM0.94m | 6:12AM0.83m | 6:39PM0.98m | 7:03AM0.91m | 7:27PM0.99m | 7:50AM0.98m | 8:11PM0.98m | ||||||||
Low Tide | 8:42PM0.18m | 8:08AM0.14m | 10:06PM0.15m | 9:29AM0.13m | 11:08PM0.10m | 10:47AM0.09m | 11:59PM0.04m | 11:51AM0.04m | 00:44AM-0.01m | 12:46PM-0.02m | 1:24AM-0.04m | 1:34PM-0.05m | 2:00AM-0.05m | |||||||
 |  | |  |  | |  | | | | | | | |  | |  | | | | |
 | — | — | 6:16 | — | — | 6:18 | — | — | 6:18 | — | — | 6:20 | — | — | 6:20 | — | — | 6:22 | — | — |
 | 7:15 | — | — | 7:14 | — | — | 7:12 | — | — | 7:09 | — | — | 7:08 | — | — | 7:07 | — | — | 7:05 | — |
mm | — | — | — | 1 | — | — | — | — | — | — | — | — | — | — | — | — | 1 | — | — | — |
Temp °C | 27 | 26 | 21 | 21 | 19 | 18 | 19 | 20 | 20 | 24 | 24 | 22 | 25 | 25 | 23 | 22 | 23 | 24 | 23 | 20 |
Feels °C | 24 | 23 | 19 | 20 | 15 | 15 | 18 | 17 | 16 | 20 | 20 | 20 | 21 | 20 | 23 | 19 | 17 | 21 | 18 | 13 |
Swell 1 Height (m) Direction Period (s) | ESE 7 | SE 8 | SSW 6 | SSW 5 | SE 8 | E 7 | E 8 | E 10 | E 10 | E 9 | E 10 | SW 4 | E 9 | SSE 9 | SE 8 | SE 10 | SE 9 | SSW 8 | SE 9 | SSW 7 |
| kJ | 15 | 16 | 6 | 6 | 9 | 15 | 29 | 31 | 16 | 15 | 16 | 3 | 7 | 8 | 3 | 15 | 14 | 468 | 14 | 84 |
Swell 2 Height (m) Direction Period (s) | SE 8 | E 6 | ESE 6 | E 7 | E 7 | SSW 6 | E 9 | SSW 6 | SSW 6 | SSW 6 | SE 8 | E 10 | SE 9 | E 9 | SE 10 | E 9 | E 8 | SE 9 | SE 9 | SE 10 |
| kJ | 17 | 7 | 8 | 8 | 4 | 8 | 7 | 3 | 3 | 4 | 3 | 7 | 3 | 6 | 4 | 2 | 1 | 13 | 14 | 15 |
Swell 3 Height (m) Direction Period (s) | S 8 | SW 4 | SE 8 | SE 8 | SSW 6 | SE 9 | SE 9 | SW 3 | SE 9 | SE 8 | S 6 | SE 9 | — | — | E 9 | — | — | — | — | — |
| kJ | 1 | 3 | 9 | 9 | 3 | 3 | 3 | 2 | 3 | 3 | 1 | 3 | — | — | 2 | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | WSW 4 | NNW 3 | N 3 | ENE 4 | E 5 | ENE 4 | SW 6 | N 3 | NW 3 | WSW 3 | SW 4 | NW 2 | SW 3 | SW 4 | SW 5 | SSW 6 | SW 7 | SW 8 | SSW 7 | NNE 4 |
| kJ | 16 | 7 | 1 | 8 | 25 | 12 | 9 | 2 | 4 | 3 | 5 | 1 | 3 | 9 | 42 | 170 | 612 | 605 | 263 | 19 |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 61 | 265 | 657 | 173 | 222 | 35 | 58 | 61 | 25 | 25 | 791 | 666 | 792 | 594 | 588 | 691 | 1154 | 58 | 53 | 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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