Flies Surf Break

Lat Long: 40.84° N 72.47° W

Flies Surf Forecast and Surf Report

Issued: 1 pm 21 Jul 2026 (local time)

Forecast update in  hr  min

Today's Flies sea temperature is
20.7° C
1.2° 

Flies surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.


Flies surf forecast from 21 Jul 2026:

  • Best quality surf: Wednesday 22 Jul, 8PM (local time) - 6ft (1.9m), 9s period, S swell with cross-offshore winds.
  • Most powerful swell: Wednesday 22 Jul, 2PM (local time) - 7ft (2.2m), 9s period, S swell with 759 kJ wave energy.
  • Next surfable swell (1★+): Wednesday 22 Jul, 8PM (local time) - 6ft (1.9m), 9s period with S swell.

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 Wednesday (Jul 22) at 8PM. The primary swell is predicted to be 1.9m and 9s period. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at Flies in the next 16 days are 2.2m 9s and forecast to arrive on Wednesday (Jul 22) at 2PM. 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 6s period and expected on Friday (Jul 24) at 11PM.

Wave TypeTime (EDT) & Date Wave Height & Period
Next good surf (1 star+) 8PM (Wed 22nd Jul)6ft (1.9m) 9s
Best Surf 8PM (Wed 22nd Jul)6ft (1.9m) 9s
Most Powerful 2PM (Wed 22nd Jul)7ft (2.2m) 9s

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


The Lowdown

Righto, let's get into it. We're looking at Flies for the next couple of weeks. It's a beach/jetty set-up.

The water's sitting at 69°, which is a bit colder than usual for this time of year, so you might want that extra layer. The outlook is pretty patchy. There’s a definite gap at the start here, because there’s nothing worth paddling out for on the 21st. The wind is howling from the SSW at 16 mph, and that moderate cross-onshore is chopping everything up on a 5ft S swell – not a good look.

Things actually start to get interesting Wednesday morning, the 22nd. A clean, cross-off wind from the WSW at 19 mph is going to groom a 7ft S swell. The wave energy is moderate (617) and the period is 8 seconds. It’s going to be big and a bit raw, but that offshore wind means it'll be lined up. It could get a bit much for beginners at that size, but for the intermediate crew, this is where the window opens. The afternoon holds similar energy (699) with a fraction more period.

Thursday the 23rd is your quiet standout. The morning sees a clean, cross-off breeze from the NE at 9 mph and a 4ft S swell. The energy is moderate (219) and conditions should be clean. It’s not going to be pumping, but it will be far more user-friendly and tidy than the bigger days. For the average surfer, that Thursday morning is probably your best bet for a fun, uncrowded session.

After that, things fade. Friday the 24th drops to a weak 2ft. The wind goes onshore in the afternoon and the energy is insignificant (52). The next session to watch is Tuesday the 28th. The morning is a total write-off with a strong cross-shore and a 7ft S swell – that’s messy and too much for most, especially with all that chop. But the afternoon is a surprise. The wind swings offshore from the NW at 16 mph, cleaning up a 6ft S swell. The energy is moderate (381) and the wave quality looks good. That afternoon could be a proper session for the more experienced crew, as it’s still a solid size with clean lines.

Wednesday the 29th still has some clean morning waves from the NW offshore wind, but the swell has dropped to 3ft. The energy is low (113) so it’s just small, clean fun.

From the 30th through to the 5th of August, it's a dry spell. The swell stays under 5ft but the winds are all over the place—cross, onshore, or just too strong. The wave energy drops to weak levels, often under 100, and there just isn't enough power in the water. The morning of the 2nd of August is nearly glassy with a tiny 2ft S swell, but even then the energy is minimal (101) and the conditions are just ordinary.

There's a long, blank run from the 30th of July to the end of the forecast. It's one of those periods where you’re better off finding something else to do.

Rusty.

Short Range Forecast

Heavy rain (total 25mm), heaviest during Tue night. Warm (max 26°C on Wed afternoon, min 18°C on Wed night). Winds decreasing (fresh winds from the SSW on Tue night, calm by Thu afternoon).

Days 5-7 Weather Summary

Mostly dry. Warm (max 23°C on Mon morning, min 18°C on Fri night). Wind will be generally light.

Tue
21
Wednesday
22
Thursday
23
Friday
24
Saturday
25
Sunday
26
Monday
27
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
0
0
1
2
1
2
0
0
0
0
0
0
0
1
0
0
0
0
0
0
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1.6
S
6
1.7
SSW
7
2.1
S
8
2.1
S
9
1.7
S
9
1.3
S
8
1.2
S
8
0.9
S
8
0.7
S
7
0.9
ESE
6
0.4
SSW
7
0.4
S
6
0.3
S
6
1
ENE
6
0.3
SSW
6
0.8
SE
7
0.8
SSW
4
0.9
SSW
5
1.2
SW
5
0.6
SSE
7
Wave Graph
Metric surfscale
Energy kJ
194
285
617
699
429
219
187
95
52
56
15
13
7
77
6
65
17
47
79
34
Wind (km/h)
25
SSW
40
SW
30
WSW
25
WSW
20
N
15
NE
15
SSE
10
ESE
10
NE
20
ESE
15
ENE
30
ENE
20
E
15
NNE
5
E
15
S
20
SSW
20
SSW
30
SSW
25
SSW
Wind State
cross-on
cross
cross-off
cross-off
cross-off
cross-off
cross-on
cross-on
cross
on
cross-on
cross
cross-on
cross-off
cross-on
cross-on
cross-on
cross
cross-on
cross-on
High Tide
2:18AM0.83m
2:55PM0.95m
3:16AM0.78m
3:51PM0.95m
4:14AM0.76m
4:45PM0.97m
5:08AM0.76m
5:34PM0.99m
5:58AM0.78m
6:19PM1.02m
6:44AM0.82m
7:03PM1.05m
Low Tide
7:43PM0.25m
7:42AM0.19m
8:45PM0.29m
8:30AM0.22m
9:55PM0.30m
9:20AM0.23m
11:10PM0.28m
10:13AM0.23m
00:06AM0.26m
11:06AM0.22m
00:43AM0.22m
11:58AM0.20m
1:12AM0.17m
thunderstorm
thunderstorm
part cloud
thunderstorm
part cloud
clear
clear
clear
clear
clear
part cloud
cloud
part cloud
clear
clear
clear
clear
clear
part cloud
light rain
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:35
5:37
5:37
5:39
5:39
5:41
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
8:15
8:15
8:14
8:13
8:12
8:12
8:10
 mm
11
13
1
2
Temp °C
23
23
23
26
26
20
21
21
21
22
20
20
22
21
20
22
22
23
23
23
Feels °C
21
20
21
24
27
17
20
19
20
19
17
15
18
19
19
20
20
22
21
20
  • Map Icons:
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  • 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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