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Surf Forecasts:

Flies surfForecast / Long Island NY / USA

information circle12 Day Weather and Surf, issued 6 pm Friday 21 Nov 2025 EST
Forecast update in hr  min  s Forecast update imminent
Flies surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Flies sea temperature is
12.4° C
 (Which is slightly warmer than usual)

Best Forecast Surf Conditions for Flies this week:

The surf forecast for Flies over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Thursday (Nov 27) at 4AM. The primary swell is predicted to be 1.1m and 6s period with a secondary swell of 1.0m and 6s. Another secondary swell of 0.1m and 8s is also forecast. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at Flies in the next 12 days are 1.4m 8s and forecast to arrive on Thursday (Nov 27) at 10PM. Winds are predicted to be offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.4m 6s period and expected on Friday (Nov 28) at 1PM.

Wave TypeTime (EST) & Date Wave Height & Period
Next good surf (1 star+) 4AM (Thu 27th Nov)3.5ft (1.1m) 6s
Best Surf 7PM (Thu 27th Nov)4.5ft (1.4m) 8s
Most Powerful10PM (Thu 27th Nov)4.5ft (1.4m) 8s

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

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

Short Range Forecast Light rain (total 6mm), mostly falling on Fri night. Very mild (max 11°C on Fri afternoon, min 4°C on Sat night). Winds increasing (light winds from the NW on Sat night, strong winds from the WNW by Sun night).

Days 3-6 Weather Summary Light rain (total 5mm), mostly falling on Tue night. Very mild (max 13°C on Wed night, min 7°C on Mon night). Winds decreasing (fresh winds from the SSW on Tue night, calm by Thu morning).

Fri
21
Saturday
22
Sunday
23
Monday
24
Tuesday
25
Wednesday
26
Thursday
27
PMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAM
Rating
(10 max)
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
1
0
Swell
Height Map
See all maps
Wave Height (m) & direction (?)
0.1
SE
0.5
SW
0.1
SE
0.1
SE
0.1
SE
0.4
SSW
0.4
SSW
0.5
S
0.3
WSW
0.2
S
0.1
SE
0.1
S
0.8
SSW
1.2
SSW
0.7
S
0.9
SSW
1
S
1.1
S
1.3
S
1.4
S
0.9
S
Period(s) (?)949886675796455567888
Wave
Graph
(?)Metric surfscale
Energy kJ (?)3733314132454311687233962111212271108
Wind
(km/h)
25
WSW
15
WSW
15
N
15
NW
15
N
5
WSW
25
WSW
40
WNW
35
NW
25
NW
5
WNW
25
SSW
25
S
30
SW
15
WSW
5
SSW
10
SW
0
WNW
5
ESE
25
WNW
40
W
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
off		cross-
off		cross-
off		offcross-
off		cross-
off		cross-
off		offoffoffglasscrosscross-
on		crosscross-
off		cross-
on		crossglasscross-
on		cross-
off		cross-
off
High Tide
/ height (m)
8:10PM
0.80
8:25AM
1.02
8:52PM
0.77
9:06AM
0.99
9:36PM
0.75
9:49AM
0.95
10:21PM
0.74
10:33AM
0.91
11:09PM
0.73
11:22AM
0.88
12:02AM
0.75
12:16PM
0.84
12:59AM
0.78
Low Tide
/ height (m)
1:23AM
0.04
2:09PM
0.03
2:02AM
0.05
2:47PM
0.04
2:43AM
0.07
3:29PM
0.05
3:28AM
0.09
4:14PM
0.06
4:19AM
0.12
5:03PM
0.06
5:16AM
0.13
5:56PM
0.06
6:17AM
0.13
Fri
21
Saturday
22
Sunday
23
Monday
24
Tuesday
25
Wednesday
26
Thursday
27
Sunrise--6:43--6:45--6:46--6:47--6:48--6:50--6:50
Sunset4:27--4:25--4:25--4:24--4:24--4:23--4:23--
cloud
light rain
light rain
clear
clear
part cloud
part cloud
clear
clear
clear
part cloud
cloud
cloud
rain showers
part cloud
cloud
cloud
light rain
heavy rain
rain showers
clear
Rain (mm)
-33----------3---2116-
Temp. °C11118967997881112121212131312116
Feels °C (?)7745-1120-2135769111213115-5
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
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Latest Updates

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Ben Mondy

Quiksilver Teams Up With PrimaLoft® For World’s First Thermal Layering System for a Wetsuit.

Feel that? If you are in the northern hemisphere, you will have had that first bite of winter. The lick of a frost, the chill of a cold offshore breeze and the sound of winter swells pounding the shores. If you are near the mountains, your favourite jackets, gloves, and footwear might get dusted off and prepped for battle. And in that beautiful Venn diagram, you will find PrimaLoft. They have spent over 40 years developing innovative insulations that have powered your warmest winter gear. In t

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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 Flies 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 Flies at:
surf-forecast.com

Information about the Flies Surf forecast

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

Flies is 32 km (20 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.

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