Fire Island Surf Break

Lat Long: 40.73° N 72.87° W

Fire Island 48 hour detailed Surf Forecast

Issued: 1 pm 21 Sep 2026 (local time)

Forecast update in  hr  min

Today's Fire Island sea temperature is
22.1°C
2.7° 

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


How big are the waves at Fire Island today (21 Sep):

  • Morning surf: Morning surf (21 Sep, local time) - 1.5ft (0.4m), 9s period with SE swell.
  • Afternoon surf: Afternoon surf (21 Sep, local time) - 3.5ft (1.0m), 6s period with E swell.
  • Evening surf: Evening surf (21 Sep, local time) - 4.5ft (1.3m), 6s period with E swell.

The current surf forecast for Fire Island at 9PM is: 1.3m 6s primary swell from a East direction (forecast issued at 01:00pm September 21). The wind direction is predicted to be cross-shore.

Time (EDT) & DateWave HeightWave Period
Morning (21 Sep)1.5ft (0.4m)9s
Afternoon (21 Sep)3.5ft (1.0m)6s
Evening (21 Sep)4.5ft (1.3m)6s

Table - waves today at Fire Island. (Swell directed towards the surf break)


Short Range Forecast

Some drizzle, heaviest during Tue morning. Very mild (max 19°C on Mon afternoon, min 12°C on Wed night). Mainly strong winds.

Mon
21
Tuesday
22
Wednesday
23
11 AM
2 PM
5 PM
8 PM
11 PM
2 AM
5 AM
8 AM
11 AM
2 PM
5 PM
8 PM
11 PM
2 AM
5 AM
8 AM
11 AM
2 PM
5 PM
8 PM
11 PM
Rating
(10 max)
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
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)
0.4
SE
9
1
E
6
1
E
6
1.2
E
6
1.3
E
7
1.3
E
7
1.5
E
7
1.8
E
7
1.6
E
7
1.9
E
8
1.9
E
8
1.9
E
8
1.9
E
8
1.9
E
8
1.9
E
8
2.1
E
9
2.3
E
9
2.5
ESE
9
2.5
ESE
10
2.5
ESE
10
3
E
10
Wave Graph
Metric surfscale
Energy kJ
29
64
69
119
152
166
226
339
279
408
424
435
458
470
500
663
828
994
1106
1177
1664
Wind (km/h)
30
NE
25
NE
20
ENE
25
ENE
25
ENE
25
ENE
30
ENE
30
NE
35
NE
35
NE
35
ENE
35
NE
35
NE
30
NE
35
NE
35
NE
40
NE
35
ENE
35
ENE
35
NE
35
NE
Wind State
cross-off
cross
cross-on
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross
High Tide
4:49PM0.91m
5:22AM0.82m
5:36PM0.94m
6:03AM0.88m
6:15PM0.98m
Low Tide
9:22AM0.30m
10:12PM0.26m
10:19AM0.26m
11:01PM0.22m
11:12AM0.21m
part cloud
part cloud
part cloud
cloud
cloud
cloud
cloud
cloud
light rain
cloud
cloud
cloud
cloud
cloud
cloud
cloud
cloud
part cloud
clear
clear
cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:37
6:39
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:51
6:49
6:46
 mm
1
Temp °C
16
18
19
18
17
17
16
16
15
15
16
16
14
14
13
13
16
16
17
14
13
Feels °C
11
14
15
13
12
12
11
12
9
9
10
10
8
8
7
6
8
9
9
7
7
  • 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
How to use the Wavefinder 

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 Fire Island 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.


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