Surf Forecasts:
Turtle Cove surf forecast from 14 Sep 2026:
- Most powerful swell: Sunday 20 Sep, 2PM (local time) - 6ft (1.8m), 6s period, SW swell with 237 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 1.8m 6s and forecast to arrive on Sunday (Sep 20) at 2PM. 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 Sunday (Sep 20) at 11AM.
| Wave Type | Time (EDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 2PM (Sun 20th Sep) | 6ft (1.8m) 6s |
Table - best surf conditions forecast for Turtle Cove over the next 16 days.
The Lowdown
Right, folks, Rusty here with a look at what Turtle Cove’s got cookin’ over the next couple of weeks. Gotta be straight with you – it’s a tough forecast. This little reef and point setup is lookin’ at a whole lot of not much for a proper surf. We’re talkin’ a blank run that stretches right through from now up until Monday the 23rd of September, nothin’ worth paddlin’ out for.
From Monday morning the 14th right through to Sunday the 22nd, it’s just tiny scraps. We’re talkin’ swell heights barely hittin’ 0.7ft to 4.6ft, and the combined energy is nearly always weak, mostly under 100. Tuesday the 16th shows a little 1.6ft SE groundswell with a period around 8 seconds, and Wednesday the 17th has a bit of cross-off wind, but the energy’s still just a whisper (around 38). There’s a little bump on Sunday the 20th afternoon where a 5.6ft swell pushes through from the SW, energy jumps to 408, but the wind swings cross-on and choppy – makes for messy, poor conditions.
The real story is the wind. From Monday the 23rd onwards, we’ve got proper energy movin’ in. On Wednesday the 23rd, the morning sees a 7.5ft ESE swell with 8-second period and a combined energy of 639 – that’s moderate wave energy – but it’s pinned under a nasty onshore gale at 31 mph. That’s a no-go. Thursday the 24th pushes a solid 9.8ft E swell with a 10-second period and a combined energy up at 1591 (strong wave energy), but again, that fresh-to-strong cross-onshore wind will have it blown out and lumpy. That’s expert-only territory, and even then, the wind’s a killer. By Friday the 25th, the swell is still a solid 5.9ft from the ESE with a longer 11-second period, energy at 881, but the onshore wind from the east at 19 mph will ruin any clean face.
Frankly, for paddle surfing, this whole 16-day window is a write-off. The consistently poor surf conditions and the fact that the bigger swells are all accompanied by strong, onshore wind makes this setup look far more interesting for kite surfing than for a regular surfer. The water temp is about average for the time of year, so no thermal shock there, at least.
Keep your stick in the car for another week, and let’s see if the forecast changes. I’ll be watchin’ it.
Short Range ForecastMostly dry. Warm (max 23°C on Mon afternoon, min 15°C on Mon night). Mainly fresh winds. | Days 5-7 Weather SummarySome drizzle, heaviest during Thu night. Warm (max 21°C on Thu afternoon, min 17°C on Fri morning). Wind will be generally light. | ||||||||||||||||||
Monday 14 | Tuesday 15 | Wednesday 16 | Thursday 17 | Friday 18 | Saturday 19 | ||||||||||||||
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 6 | SE 9 | SE 8 | SE 8 | ENE 5 | S 7 | ESE 5 | ESE 9 | ESE 7 | ESE 8 | E 8 | ESE 7 | ESE 7 | ESE 12 | SE 12 | SE 12 | ESE 8 | SE 9 | ESE 11 |
Wave Graph  | |||||||||||||||||||
 kJ | 43 | 28 | 35 | 20 | 36 | 10 | 8 | 8 | 18 | 19 | 29 | 18 | 15 | 14 | 22 | 21 | 26 | 19 | 47 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | cross-off | cross-on | cross-on | cross-on | cross | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-on | on | glassy | cross | cross | cross |
High Tide | 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 | 3:38AM0.01m | 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 | |||||||
 |  |  | | | | | | | | | |  | | | | | | | |
 | — | 6:26 | — | — | 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 | — | — | — | — | — | — | — | — | — | — | — | — | 1 | — | — | — | — | — | 4 |
Temp °C | 22 | 19 | 23 | 21 | 15 | 17 | 16 | 17 | 18 | 19 | 20 | 21 | 21 | 18 | 20 | 20 | 19 | 20 | 21 |
Feels °C | 23 | 13 | 18 | 16 | 11 | 15 | 14 | 16 | 17 | 16 | 19 | 18 | 18 | 16 | 19 | 18 | 19 | 18 | 18 |
Swell 1 Height (m) Direction Period (s) | SSE 6 | S 6 | SE 8 | SE 8 | SE 9 | S 7 | ESE 5 | ESE 5 | ESE 7 | ESE 8 | E 8 | ESE 7 | ESE 7 | ESE 7 | ESE 7 | ESE 6 | ESE 8 | SE 9 | ESE 11 |
| kJ | 43 | 23 | 35 | 17 | 13 | 8 | 7 | 5 | 18 | 19 | 29 | 18 | 15 | 9 | 9 | 14 | 26 | 19 | 47 |
Swell 2 Height (m) Direction Period (s) | SE 9 | SE 9 | S 6 | S 6 | SSE 7 | ESE 9 | ESE 9 | ESE 9 | SE 10 | SE 13 | SE 12 | SE 12 | ESE 12 | ESE 12 | SE 12 | SE 12 | ESE 12 | ESE 11 | — |
| kJ | 29 | 28 | 11 | 7 | 9 | 8 | 8 | 8 | 4 | 7 | 6 | 6 | 15 | 14 | 22 | 21 | 13 | 13 | — |
Swell 3 Height (m) Direction Period (s) | S 10 | SSE 5 | — | S 15 | S 6 | S 6 | S 6 | E 7 | SE 13 | SE 9 | SE 9 | SE 9 | SE 9 | SE 9 | ESE 9 | SE 8 | — | E 7 | — |
| kJ | 2 | 3 | — | 4 | 3 | 1 | 3 | 4 | 7 | 3 | 3 | 3 | 3 | 3 | 8 | 11 | — | 1 | — |
Wind waves Height (m) Direction Period (s) | — | NW 4 | NNW 3 | NE 4 | ENE 5 | E 4 | — | — | — | SW 3 | SW 3 | SW 3 | SW 3 | NE 3 | ENE 3 | — | — | SSE 2 | S 4 |
| kJ | — | 14 | 3 | 20 | 36 | 10 | — | — | — | 2 | 1 | 5 | 2 | 3 | 4 | — | — | 1 | 17 |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 18 | 139 | 61 | 265 | 798 | 791 | 792 | 793 | 1154 | 197 | 183 | 184 | 25 | 731 | 792 | 684 | 691 | 1162 | 1107 |
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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