Surf Forecasts:
Turtle Cove surf forecast from 11 Sep 2026:
- Best quality surf: Sunday 13 Sep, 11AM (local time) - 3ft (0.9m), 5s period, SSE swell with cross-offshore winds.
- Most powerful swell: Friday 11 Sep, 2AM (local time) - 3.5ft (1.0m), 7s period, SSW swell with 83 kJ wave energy.
- Next surfable swell (1★+): Sunday 13 Sep, 11AM (local time) - 3ft (0.9m), 5s period with SSE 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 11AM. The primary swell is predicted to be 0.9m and 5s period with a secondary swell of 0.4m and 10s. Another secondary swell of 0.4m and 10s is also forecast. 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 1.0m 7s and forecast to arrive on Friday (Sep 11) at 2AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.2m 5s period and expected on Friday (Sep 18) at 2AM.
| Wave Type | Time (EDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 11AM (Sun 13th Sep) | 3ft (0.9m) 5s |
| Best Surf | 11AM (Sun 13th Sep) | 3ft (0.9m) 5s |
| Most Powerful | 2AM (Fri 11th Sep) | 3.5ft (1.0m) 7s |
Table - best surf conditions forecast for Turtle Cove over the next 16 days.
The Lowdown
Alright, let’s have a look at what’s on offer here. Turtle Cove is the only spot in the frame, and to be honest, it’s a pretty quiet run for the next couple of weeks. The swell energy is low for the most part, and the winds are all over the shop, so you’ll need to be patient if you’re keen on a paddle.
The first real chance to wet a line comes up on Sunday the 13th. The morning isn’t much to write home about, with a modest 0.9m swell from the SSE, but the wind is cross-offshore and the water is clean. The combined energy sits at 113 (moderate), so there’s a bit of push behind it. It’s only a 5-second period, so it’s gonna be a bit weak and crumbly, but if you’re desperate, there’s something to work with. The afternoon cleans up even more with a light offshore from the west, though the swell drops to 0.4m.
After that, it’s pretty barren until Friday the 18th, when a bigger pulse rolls in. That morning, the swell jumps to 1.6m from the NE, but the wind is howling onshore from the ENE at 30 km/h, and the whole thing gets lumpy. The energy is 193 (moderate), but it’s messy. That afternoon gets even bigger at 1.8m (299 energy) but the wind is straight onshore. That’s kite-surfing territory, not for the longboard.
Then we get a bit of a tease on Saturday the 19th afternoon. The wind swings offshore from the WSW, light at 10 km/h, and the swell is a tiny 0.6m from the east. It’s clean, but there’s barely any power.
The standout, if you can call it that, is on Saturday the 26th of September. That’s a week and a half away, so take it with a grain of salt, but the morning shows a 1.2m south-east swell with a fresh offshore from the west-southwest at 35 km/h. The energy is big – 436 (strong) – and though the period is 12 seconds, which is decent, that long period at a reef and point setup like Turtle Cove could actually shape up nicely. The water temp is about average for this time of year, so no wild anomalies there.
Crowds at Turtle Cove can be an issue sometimes, but given the lack of quality across the board, you might have it quiet.
So, bottom line: surfable but not special for the first week. If you’re keen, chase the Sunday the 13th morning or the late September 26th morning for the cleanest conditions. Otherwise, it’s a slow stretch.
Rusty.
Short Range ForecastHeavy rain (total 24mm), heaviest during Sun morning. Warm (max 27°C on Thu night, min 18°C on Sat morning). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Warm (max 24°C on Sun night, min 16°C on Mon night). Wind will be generally light. | ||||||||||||||||||
Friday 11 | Saturday 12 | Sunday 13 | Monday 14 | Tuesday 15 | Wednesday 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) | SSW 7 | SSW 6 | S 6 | SSW 6 | SE 9 | SE 10 | SE 10 | SSE 5 | SE 9 | SE 6 | SE 9 | SE 7 | SE 7 | E 6 | ESE 9 | ESE 6 | SE 9 | E 7 | ESE 6 |
Wave Graph  | |||||||||||||||||||
 kJ | 83 | 39 | 24 | 23 | 14 | 15 | 24 | 47 | 31 | 37 | 22 | 50 | 27 | 27 | 8 | 13 | 13 | 9 | 7 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | off | cross | on | cross-on | cross | cross-off | off | off | cross-off | on | cross-on | on | cross-on | cross-off | cross-off | cross-off | cross-off |
High Tide | 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 | 11:08AM0.92m | 11:06PM0.73m | 11:46AM0.85m | 11:40PM0.67m | ||||||
Low Tide | 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 | 4:59PM0.13m | 4:46AM0.11m | 5:42PM0.20m | |||||||
 |  |  |  | | |  |  | | | | | | | | | | | | |
 | — | 6:22 | — | — | 6:24 | — | — | 6:24 | — | — | 6:26 | — | — | 6:26 | — | — | 6:28 | — | — |
 | 7:05 | — | 7:04 | — | — | 7:01 | — | — | 7:00 | — | — | 6:59 | — | — | 6:57 | — | — | 6:54 | — |
mm | — | — | — | — | — | — | 3 | 21 | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 27 | 20 | 24 | 23 | 19 | 21 | 22 | 22 | 23 | 24 | 20 | 23 | 21 | 19 | 18 | 19 | 20 | 20 | 21 |
Feels °C | 25 | 17 | 20 | 21 | 17 | 20 | 20 | 23 | 24 | 26 | 16 | 21 | 20 | 17 | 16 | 15 | 17 | 17 | 19 |
Swell 1 Height (m) Direction Period (s) | SSW 7 | SSW 6 | S 6 | SSW 6 | SSW 6 | SSW 6 | SE 10 | SE 10 | SSE 5 | SE 6 | SE 6 | SE 7 | SE 7 | SSW 6 | ESE 9 | ESE 6 | SE 9 | E 7 | ESE 6 |
| kJ | 83 | 39 | 24 | 23 | 14 | 6 | 24 | 33 | 28 | 37 | 22 | 50 | 27 | 7 | 8 | 13 | 13 | 9 | 6 |
Swell 2 Height (m) Direction Period (s) | SE 10 | SE 10 | SE 9 | SE 9 | SE 9 | SE 10 | SW 5 | SE 10 | SE 9 | SE 9 | SE 9 | SSW 6 | SSW 6 | ESE 9 | SSW 6 | ESE 9 | E 5 | ESE 9 | SE 9 |
| kJ | 14 | 14 | 13 | 13 | 14 | 15 | 1 | 33 | 31 | 29 | 20 | 12 | 13 | 8 | 3 | 8 | 2 | 8 | 3 |
Swell 3 Height (m) Direction Period (s) | SSE 8 | — | — | SSE 6 | SSE 6 | SSE 6 | — | — | — | — | SW 4 | NE 4 | S 15 | SE 8 | ESE 6 | SE 14 | E 7 | ESE 5 | SE 13 |
| kJ | 6 | — | — | 4 | 4 | 4 | — | — | — | — | 3 | 5 | 4 | 2 | 4 | 7 | 1 | 2 | 7 |
Wind waves Height (m) Direction Period (s) | — | NNW 2 | WSW 2 | — | — | — | SSE 4 | SSE 5 | — | SW 3 | NNW 3 | — | E 5 | E 6 | ESE 4 | S 3 | SW 3 | SW 4 | SW 4 |
| kJ | — | 1 | 1 | — | — | — | 18 | 47 | — | 3 | 3 | — | 23 | 27 | 5 | 3 | 5 | 18 | 7 |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 0 | 25 | 668 | 25 | 1162 | 1162 | 265 | 0 | 0 | 0 | 139 | 6 | 222 | 657 | 1032 | 2364 | 265 | 265 | 233 |
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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