Snow-ForecastSnow-ForecastMountain-ForecastMountain-ForecastTide-ForecastTide-ForecastWeather-ForecastWeather-Forecast
Search by country, region, or break
Search by country, region, or break

Quick Links

Surf Forecasts:

Cupsogue surfForecast / Long Island NY / USA

information circle12 Day Weather and Surf, issued 6 pm Tuesday 06 Jan 2026 EST
Forecast update in hr  min  s Forecast update imminent
Cupsogue surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Cupsogue sea temperature is
4.2° C
 (Which is 3.0°C colder than average for this time of year)

Best Forecast Surf Conditions for Cupsogue this week:

The surf forecast for Cupsogue over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Wednesday (Jan 07) at 7PM. The primary swell is predicted to be 1.1m and 8s period. The wind is predicted to be offshore as the swell arrives.

The most powerful waves expected at Cupsogue in the next 12 days are 2.0m 7s and forecast to arrive on Saturday (Jan 10) at 10PM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.4m 4s period and expected on Wednesday (Jan 07) at 1AM.

Wave TypeTime (EST) & Date Wave Height & Period
Next good surf (1 star+) 7PM (Wed 7th Jan)3.5ft (1.1m) 8s
Best Surf 7PM (Wed 7th Jan)3.5ft (1.1m) 8s
Most Powerful10PM (Sat 10th Jan)6.5ft (2.0m) 7s

Table - best surf conditions forecast for Cupsogue over the next 12 days.

Updates in  hr  min  s Forecast update imminent 
12 DaysHourly
Print Table

Short Range Forecast Mostly dry. Mild temperatures (max 7°C on Wed morning, min 2°C on Wed night). Winds decreasing (fresh winds from the WNW on Wed morning, calm by Thu night).

Days 3-6 Weather Summary Heavy rain (total 27mm), heaviest during Sat night. Icy conditions (max 12°C on Fri night, min -1°C on Mon morning). Winds increasing (light winds from the SSW on Sat morning, fresh winds from the WNW by Sun night).

Tue
06
Wednesday
07
Thursday
08
Friday
09
Saturday
10
Sunday
11
Monday
12
PMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAM
Rating
(10 max)
0
0
0
0
1
1
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
Swell
Height Map
See all maps
Wave Height (m) & direction (?)
0.6
S
0.5
S
0.8
SSW
1.2
S
1
S
0.7
S
0.5
S
0.4
S
0.5
S
0.9
S
1.2
S
1.1
S
1.1
S
1.9
S
1.5
S
1.6
SSW
0.9
S
0.7
S
0.6
S
0.4
SSE
0.3
S
Period(s) (?)656988776566678877766
Wave
Graph
(?)Metric surfscale
Energy kJ (?)23133421913257271519341029180392262276824533147
Wind
(km/h)
20
E
10
E
30
WSW
30
WNW
20
NW
20
NNW
10
WNW
5
SSW
20
S
25
S
25
SW
10
SSW
15
S
30
SW
25
SW
20
W
30
W
30
NW
15
NW
15
W
30
SW
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
on		cross-
on		cross-
off		cross-
off		offoffcross-
off		cross-
on		cross-
on		cross-
on		crosscross-
on		cross-
on		crosscrosscross-
off		cross-
off		offoffcross-
off		cross
High Tide
/ height (m)
9:58PM
0.90
10:15AM
0.98
10:47PM
0.88
11:03AM
0.89
11:37PM
0.85
11:52AM
0.81
12:28AM
0.82
12:44PM
0.73
1:22AM
0.80
1:39PM
0.67
2:17AM
0.80
2:37PM
0.63
3:12AM
0.81
Low Tide
/ height (m)
3:27AM
-0.05
4:04PM
-0.09
4:16AM
0.00
4:46PM
-0.05
5:07AM
0.06
5:28PM
0.00
6:00AM
0.12
6:13PM
0.04
6:57AM
0.15
6:58PM
0.07
7:58AM
0.17
7:47PM
0.09
9:06AM
0.17
Tue
06
Wednesday
07
Thursday
08
Friday
09
Saturday
10
Sunday
11
Monday
12
Sunrise--7:15--7:13--7:13--7:13--7:13--7:13--7:13
Sunset4:37--4:38--4:39--4:40--4:42--4:43--4:44--
part cloud
cloud
cloud
part cloud
clear
clear
clear
part cloud
cloud
cloud
light rain
light rain
light rain
heavy rain
light rain
cloud
clear
clear
clear
clear
part cloud
Rain (mm)
----------543114------
Temp. °C467635667101211111111962334
Feels °C (?)-24-1-2-4023131096573-1-5-3-3-5
  • 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

Latest Updates

The World’s Most Inconsistent Waves
Ben Mondy

The World’s Most Inconsistent Waves

Huntington, Dribbleton, Virginia, Holland and the Superbank! We recently had a look at the world’s most consistent waves. This was based on the combination of swells and wind directed at 7,000 surf spots, as compiled from our data since 2006. Those stats, represented in easy-to-read graphics, are located under each wave’s spot guides, with historical swell and wind breakdowns available by month, season, and year. There is also an offshore filter, which shows how often the swells come with clean

Read more

Read more

Discover more articles and updates in the Greenroom.

submit an eyeball surf report

Quick surf report for Cupsogue:

join our community of surf reporters

FREE! Surf-Forecast.com widget for your website

The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Cupsogue surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.

View detailed surf forecast for Cupsogue at:
surf-forecast.com

false

Information about the Cupsogue Surf forecast

The above surf forecast table for Cupsogue provides essential information for determining whether the surfing conditions will be good over the next 12 days. A general guide to surfing at Cupsogue can be found by selecting the local surf guide option on the grey menu. Our Cupsogue 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 (Cupsogue) 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 Cupsogue 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.

Cupsogue is 12 km (7 miles) from Mastic. If you plan a vacation in Long Island New York, look for hotels and other accommodation in Mastic. Mastic has rooms for a wide range of budgets as well as car hire and transport links.

Nearest locationNearest
Nearest locationNearest
Nearest locationNearest