Flies surfForecast / Long Island NY / USA

information circle16 Day Weather and Surf, issued 1 pm Friday 15 May 2026 EDT
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
11.0° C
(Which is normal for this time of year)

Best Forecast Surf Conditions for Flies this week:

The surf forecast for Flies over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Friday (May 15) at 5PM. The primary swell is predicted to be 0.7m and 8s period with a secondary swell of 0.7m and 8s. Another secondary swell of 0.3m and 4s is also forecast. The wind is predicted to be offshore as the swell arrives.

The most powerful waves expected at Flies in the next 16 days are 2.0m 7s and forecast to arrive on Wednesday (May 20) at 11PM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.3m 9s period and expected on Friday (May 15) at 5PM.

Wave TypeTime (EDT) & Date Wave Height & Period
Next good surf (1 star+) 5PM (Fri 15th May)2.5ft (0.7m) 8s
Best Surf 2AM (Sat 16th May)3ft (0.9m) 10s
Most Powerful11PM (Wed 20th May)6.5ft (2.0m) 7s

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


Updates in  hr  min  s Forecast update imminent

Short Range Forecast

Mostly dry. Warm (max 23°C on Sun night, min 11°C on Fri night). Winds increasing (light winds from the NNE on Fri night, fresh winds from the SW by Sat night).

Days 5-7 Weather Summary

Light rain (total 2mm), mostly falling on Tue morning. Warm (max 24°C on Tue afternoon, min 11°C on Thu morning). Winds increasing (light winds from the SE on Mon afternoon, fresh winds from the SW by Tue night).

Fri
15
Saturday
16
Sunday
17
Monday
18
Tuesday
19
Wednesday
20
Thursday
21
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
Rating
(10 max)
1
2
0
0
0
1
0
1
0
0
0
0
0
0
0
0
0
0
1
0
0
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.7
S
8
0.9
SE
10
0.8
SSE
9
0.6
SSE
8
1.5
SSW
6
0.8
S
8
1.3
SSW
7
0.9
SSW
7
0.6
SSE
8
0.6
SSE
7
0.6
SE
8
0.6
SE
9
1.1
SSW
5
1.7
SSW
7
1.3
SSW
6
1.5
SSW
6
1.7
SSW
7
1.1
SSW
7
0.9
SSW
6
0.7
S
6
0.4
SE
9
Wave Graph
Metric surfscale
Energy kJ
72
154
99
55
164
72
163
77
39
37
49
47
59
247
127
169
261
111
70
40
28
Wind (km/h)
10
WNW
5
NNE
20
SW
25
SSW
35
SW
10
WNW
25
SSW
15
NE
15
ESE
10
SE
20
SSW
20
SW
30
SSW
30
SW
25
SW
35
SSW
25
SW
30
NNW
15
WNW
20
NNE
25
ENE
off
cross-off
cross
cross-on
cross
off
cross
cross-off
cross-on
on
cross
cross
cross
cross
cross
cross
cross
cross-off
off
cross-off
cross
High Tide
7:14PM1.24m
7:39AM1.01m
8:03PM1.28m
8:31AM1.01m
8:54PM1.29m
9:24AM1.00m
9:46PM1.27m
10:19AM0.98m
10:40PM1.22m
11:15AM0.96m
11:36PM1.16m
12:13PM0.94m
00:33AM1.09m
1:13PM0.92m
Low Tide
1:10AM-0.05m
1:11PM-0.09m
2:01AM-0.09m
2:00PM-0.09m
2:52AM-0.09m
2:50PM-0.07m
3:43AM-0.07m
3:42PM-0.02m
4:36AM-0.03m
4:36PM0.04m
5:33AM0.02m
5:35PM0.11m
6:33AM0.07m
part cloud
clear
clear
clear
part cloud
part cloud
part cloud
clear
clear
clear
part cloud
rain showers
clear
clear
clear
clear
clear
light rain
light rain
part cloud
cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:31
5:31
5:30
5:28
5:28
5:26
5:26
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
8:00
8:00
8:01
8:01
8:02
8:04
8:05
8:06
1
1
2
Temp °C
16
13
14
16
16
21
22
23
17
17
20
22
24
20
21
21
17
17
15
16
11
13
8
10
11
12
21
19
22
13
14
19
21
21
14
18
17
11
16
12
13
4
Swell 1
Height (m)
Direction
Period (s)
1.3
ESE
9
0.9
SE
10
0.8
SSE
9
0.7
ESE
9
0.5
SSE
8
0.9
SSW
7
0.6
SE
8
0.9
SSW
7
0.6
SSE
8
0.6
SSE
7
0.6
SE
8
0.6
SE
9
0.6
SE
8
0.6
SE
9
0.5
SE
9
0.5
SE
9
0.4
SE
9
1.1
SSW
7
0.9
SSW
6
0.7
S
6
0.5
S
6
Energy kJ
272
154
99
82
40
68
55
77
39
37
49
47
45
47
40
41
30
111
70
40
19
Swell 2
Height (m)
Direction
Period (s)
0.7
S
8
0.7
E
10
0.7
ESE
9
0.6
SSE
8
0.5
ESE
9
0.8
S
8
0.6
SSE
8
0.5
S
7
0.3
SSW
6
0.2
E
4
0.1
SE
13
0.1
SE
16
0.1
SE
16
0.1
SE
15
0.1
SE
15
0.1
SE
15
0.4
SE
9
0.4
SE
9
0.4
SE
9
0.4
SE
9
Energy kJ
68
96
88
55
44
72
42
22
7
1
7
10
10
9
8
8
28
27
27
28
Swell 3
Height (m)
Direction
Period (s)
0.7
SSE
8
0.6
S
9
0.4
ENE
9
0.6
SSE
8
0.1
SE
14
0.1
SE
13
0.1
SE
14
0.1
SE
14
0.1
SE
14
0.1
SE
14
Energy kJ
72
54
27
47
7
7
8
8
8
7
Wind waves
Height (m)
Direction
Period (s)
0.3
SW
4
0.3
SW
2
0.8
SSW
4
1.5
SSW
6
1.3
SSW
7
0.5
ESE
4
0.5
SE
4
0.5
S
6
0.7
SSW
5
1.1
SSW
5
1.7
SSW
7
1.3
SSW
6
1.5
SSW
6
1.7
SSW
7
0.4
NNW
3
0.4
N
3
0.5
NE
4
Energy kJ
3
1
16
164
163
7
7
19
23
59
247
127
169
261
2
3
9
Nearest Offshore or Glassy
Rating
(10 max)
1
2
2
1
1
1
2
1
1
1
1
1
1
1
1
1
1
2
1
1
1
Distance (km)
0
0
0
56
80
207
0
80
0
100
715
47
140
258
877
80
265
80
0
0
18
Best forecast wave conditions in Long Island New York
Rating
(10 max)
2
2
2
1
2
1
1
1
1
1
Best forecast wave conditions in United States
Rating
(10 max)
2
2
4
2
3
4
3
4
4
4
3
4
3
1
4
3
2
3
3
1
4
Header Global
Rating
(10 max)
6
5
4
6
4
5
7
4
6
4
4
4
4
4
4
6
5
4
7
5
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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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 16 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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