Turtle Cove surfForecast / Long Island NY / USA

information circle16 Day Weather and Surf, issued 7 am Thursday 19 Mar 2026 EDT
Forecast update in hr  min  s Forecast update imminent
Turtle Cove surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Turtle Cove sea temperature is
3.1° C
(Which is 1.6°C colder than average for this time of year)

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 Thursday (Mar 19) at 5PM. The primary swell is predicted to be 0.7m and 9s period with a secondary swell of 0.7m and 8s. 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 2.2m 7s and forecast to arrive on Saturday (Mar 21) 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 1.9m 6s period and expected on Friday (Mar 20) at 11PM.

Wave TypeTime (EDT) & Date Wave Height & Period
Next good surf (1 star+) 5PM (Thu 19th Mar)2.5ft (0.7m) 9s
Best Surf 2PM (Sat 21st Mar)4.5ft (1.4m) 7s
Most Powerful 2AM (Sat 21st Mar)7ft (2.2m) 7s

Table - best surf conditions forecast for Turtle Cove over the next 16 days.


Updates in  hr  min  s Forecast update imminent

Short Range Forecast Moderate rain (total 11mm), heaviest on Fri night. Icy conditions (max 11°C on Sat afternoon, min -1°C on Thu morning). Winds decreasing (strong winds from the SSW on Fri night, light winds from the SSW by Sat afternoon).

Days 3-6 Weather Summary Light rain (total 2mm), mostly falling on Sun night. Icy conditions (max 9°C on Mon morning, min -2°C on Tue morning). Winds decreasing (near gales from the WNW on Mon night, light winds from the NNW by Tue afternoon).

Thursday
19
Friday
20
Saturday
21
Sunday
22
Monday
23
Tuesday
24
Wednesday
25
AMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNight
Rating
(10 max)
0
1
0
1
0
0
1
1
0
0
0
0
0
0
0
0
1
0
0
0
0
Swell
Height Map
Wave Height (m) & direction (?)
0.9
SSE
0.7
SE
0.6
SE
0.6
SE
0.6
SE
2.2
SSW
1.4
SSW
1.2
SSW
0.8
SSW
0.6
S
0.5
SE
0.6
SE
1.4
SSW
0.9
SE
1.1
NE
0.7
ENE
0.7
E
0.6
E
0.4
E
0.3
E
0.5
SSW
Period(s) (?)99888777668878610101010105
Wave
Graph
(?)Metric surfscale
Energy kJ (?)1068157575441119113656253242171956910610678311613
Wind
(km/h)
15
SE
15
SSW
25
SW
10
SW
35
SSW
45
SW
20
NNW
5
SSW
15
SE
20
S
10
SSW
25
SSE
40
SW
50
W
50
NW
30
NNW
10
NNW
20
SSE
30
SSW
30
SW
20
NE
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
on
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
on
crosscross-
off
crosscross-
off
offcross-
off
cross-
off
cross-
off
crosscross-
off
cross-
off
cross-
on
High Tide
/ height (m)
8:39AM
0.82
8:58PM
0.94
9:20AM
0.81
9:39PM
0.97
10:04AM
0.79
10:23PM
0.98
10:51AM
0.74
11:12PM
0.95
11:42AM
0.69
12:06AM
0.91
12:41PM
0.65
1:08AM
0.85
1:53PM
0.62
2:26AM
0.80
Low Tide
/ height (m)
2:25PM
-0.15
3:03AM
-0.13
3:05PM
-0.16
3:49AM
-0.13
3:46PM
-0.14
4:38AM
-0.10
4:30PM
-0.10
5:32AM
-0.05
5:19PM
-0.05
6:35AM
0.00
6:14PM
0.01
7:53AM
0.05
7:21PM
0.07
Thursday
19
Friday
20
Saturday
21
Sunday
22
Monday
23
Tuesday
24
Wednesday
25
Sunrise6:52--6:50--6:48--6:48--6:46--6:43--6:43--
Sunset-6:57--6:59--7:00--7:00--7:01--7:02--7:04-
clear
clear
clear
clear
part cloud
mod rain
rain showers
clear
part cloud
cloud
cloud
rain showers
light rain
part cloud
clear
clear
clear
part cloud
cloud
part cloud
part cloud
Rain (mm)
-----101----11--------
Temp. °C0244577116688993065455
Feels °C (?)-5-3-30-1-428015501-10-910-4-3-3
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
Map placeholder

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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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