Surf Forecasts:
Turtle Cove surf forecast from 8 Sep 2026:
- Best quality surf: Friday 11 Sep, 2PM (local time) - 2.5ft (0.7m), 6s period, SSW swell with offshore winds.
- Most powerful swell: Thursday 10 Sep, 8AM (local time) - 8ft (2.4m), 7s period, SW swell with 582 kJ wave energy.
- Next surfable swell (1★+): Friday 11 Sep, 2PM (local time) - 2.5ft (0.7m), 6s 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 Friday (Sep 11) at 2PM. The primary swell is predicted to be 0.7m and 6s period with a secondary swell of 0.3m and 3s. Another secondary swell of 0.4m and 3s is also forecast. 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 2.4m 7s and forecast to arrive on Thursday (Sep 10) at 8AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.8m 6s period and expected on Wednesday (Sep 09) at 11PM.
| Wave Type | Time (EDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 2PM (Fri 11th Sep) | 2.5ft (0.7m) 6s |
| Best Surf | 2PM (Fri 11th Sep) | 2.5ft (0.7m) 6s |
| Most Powerful | 8AM (Thu 10th Sep) | 8ft (2.4m) 7s |
Table - best surf conditions forecast for Turtle Cove over the next 16 days.
The Lowdown
Alright, I’ve chewed through the data for Turtle Cove for the next couple of weeks, and I’ll level with you – it’s a lean run. The big picture is mostly small, lumpy, and not playing ball, with only a couple of windows that’ll get you wet for the right reasons.
The main event comes on the morning of Thursday, 10 September. That’s our biggest swell of the stretch: 7ft from the SW. But the period is short at 7 seconds, and the wind is a fresh 35 km/h cross-off. The combined swell energy is strong (516), but the whole scene looks more suitable for kiting than paddling. That afternoon drops to 6ft, but still windy and ordinary. This one is strictly for the experts, and even then, it’s a grunt.
Your best window is Friday, 11 September in the afternoon. The swell is a modest 2ft from the SSW, but the wind goes offshore from the WSW at 15 km/h, cleaning things right up. The combined energy is weak (60), but the wave quality will be the tidiest we see. For a low-key session at a reef and point break that’s fairly consistent, this is your pick. Crowds are possible. The water temp is 70°, which is about normal for this time of year.
After that, it’s slim pickings until the morning of Sunday, 20 September. That morning offers 3ft from the SSW with glassy conditions and a slight air. The combined energy is still weak (96), but clean surf is clean surf. It’s surfable but nothing special.
The rest of the 16 days is filled with small, short-period swell and crummy wind. There are long gaps – from the 12th through the 18th – where there’s really nothing to recommend. A lot of onshore and cross-on breezes, choppy water, and knee-high dribble. Not worth rushing for.
So, bottom line: Thursday the 10th is the biggest but ugly. Friday the 11th afternoon is your cleanest bet on small swell. The rest is a waiting game. This area can turn around quick, so don’t give up hope.
Rusty.
Short Range ForecastLight rain (total 3mm), mostly falling on Thu morning. Warm (max 24°C on Tue afternoon, min 20°C on Thu night). Winds increasing (calm on Wed morning, strong winds from the SW by Wed night). | Days 4-6 Weather SummarySome drizzle, heaviest during Sun night. Warm (max 23°C on Fri afternoon, min 16°C on Sat morning). Wind will be generally light. | ||||||||||||||||||||
Tuesday 8 | Wednesday 9 | Thursday 10 | Friday 11 | Saturday 12 | Sunday 13 | Monday 14 | |||||||||||||||
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) | SSE 9 | SSE 9 | SE 9 | SSE 8 | SE 10 | SW 7 | SW 7 | SSW 7 | SSW 7 | SSW 7 | SSW 7 | SSW 7 | SE 9 | SE 10 | SE 10 | SE 10 | SE 9 | SE 9 | SE 8 | SE 8 | SE 7 |
Wave Graph  | |||||||||||||||||||||
 kJ | 8 | 8 | 12 | 7 | 15 | 421 | 503 | 352 | 136 | 62 | 45 | 34 | 14 | 15 | 25 | 46 | 42 | 51 | 38 | 53 | 43 |
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-off | cross-off | cross-off | cross-off | cross-off | off | cross-on | cross-on | glassy | cross | cross-on | cross-on | cross | cross-off | cross-off | off |
High Tide | 6:39PM0.98m | 7:03AM0.91m | 7:27PM0.99m | 7:50AM0.98m | 8:11PM0.98m | 8:33AM1.02m | 8:51PM0.95m | 9:14AM1.04m | 9:28PM0.91m | 9:53AM1.02m | 10:02PM0.85m | 10:31AM0.98m | 10:34PM0.79m | ||||||||
Low Tide | 11:51AM0.04m | 00:44AM-0.01m | 12:46PM-0.02m | 1:24AM-0.04m | 1:34PM-0.05m | 2:00AM-0.05m | 2:19PM-0.05m | 2:34AM-0.05m | 3:01PM-0.04m | 3:07AM-0.03m | 3:41PM0.01m | 3:38AM0.01m | 4:20PM0.06m | 4:11AM0.06m | |||||||
 |  |  |  | | |  | |  | | |  | | | | | |  | | | | |
 | 6:20 | — | — | 6:20 | — | — | 6:22 | — | — | 6:22 | — | — | 6:24 | — | — | 6:24 | — | — | 6:26 | — | — |
 | — | 7:08 | — | — | 7:07 | — | — | 7:05 | — | — | 7:04 | — | — | 7:01 | — | — | 7:00 | — | — | 6:59 | — |
mm | — | — | — | — | — | — | 1 | — | 2 | — | — | — | — | — | — | — | — | 1 | — | — | — |
Temp °C | 21 | 24 | 24 | 23 | 23 | 23 | 23 | 23 | 23 | 19 | 23 | 22 | 17 | 19 | 21 | 21 | 22 | 23 | 24 | 25 | 25 |
Feels °C | 18 | 21 | 20 | 23 | 21 | 19 | 20 | 20 | 22 | 16 | 19 | 17 | 14 | 21 | 20 | 19 | 22 | 25 | 26 | 26 | 27 |
Swell 1 Height (m) Direction Period (s) | SW 4 | SSE 9 | SE 9 | SSE 8 | SE 10 | SE 9 | SE 9 | SE 9 | SSW 7 | SSW 7 | SSW 7 | SSW 7 | SSW 6 | SSW 6 | SE 10 | SE 10 | SE 9 | SE 9 | SE 8 | SE 8 | SE 7 |
| kJ | 3 | 8 | 12 | 7 | 15 | 12 | 12 | 14 | 136 | 62 | 45 | 34 | 11 | 6 | 25 | 46 | 42 | 51 | 38 | 53 | 43 |
Swell 2 Height (m) Direction Period (s) | SSE 9 | E 9 | E 9 | SE 10 | E 9 | E 8 | E 8 | E 8 | SE 10 | SE 10 | SE 10 | ESE 9 | SE 9 | SE 10 | SSW 5 | SW 5 | — | — | SE 9 | S 5 | SSW 5 |
| kJ | 8 | 6 | 6 | 4 | 2 | 1 | 1 | 1 | 14 | 15 | 14 | 8 | 14 | 15 | 3 | 1 | — | — | 14 | 27 | 16 |
Swell 3 Height (m) Direction Period (s) | E 9 | S 6 | S 6 | E 9 | — | — | — | — | E 8 | — | ENE 4 | SSE 6 | SSE 6 | SSE 6 | S 10 | — | — | — | — | — | SE 15 |
| kJ | 6 | 1 | 1 | 2 | — | — | — | — | 1 | — | 1 | 4 | 4 | 4 | 2 | — | — | — | — | — | 8 |
Wind waves Height (m) Direction Period (s) | NW 2 | SW 3 | SW 4 | SW 4 | SSW 4 | SW 7 | SW 7 | SSW 7 | — | NE 2 | — | — | NE 3 | — | S 4 | SE 3 | SSE 3 | S 4 | SSW 4 | SSW 5 | NNE 3 |
| kJ | 1 | 7 | 7 | 2 | 19 | 421 | 503 | 352 | — | 1 | — | — | 3 | — | 9 | 3 | 6 | 9 | 16 | 31 | 6 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 461 | 793 | 645 | 1074 | 1074 | 1074 | 197 | 195 | 0 | 38 | 0 | 666 | 800 | 793 | 265 | 393 | 1164 | 265 | 0 | 225 | 0 |
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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