Fire Island Surf Break

Lat Long: 40.73° N 72.87° W

Fire Island 48 hour detailed Surf Forecast

Issued: 1 am 20 Sep 2026 (local time)

Forecast update in  hr  min

Today's Fire Island sea temperature is
22.3°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 (20 Sep):

  • Morning surf: Morning surf (20 Sep, local time) - 1ft (0.3m), 11s period with SE swell.
  • Afternoon surf: Afternoon surf (20 Sep, local time) - 1ft (0.3m), 11s period with SE swell.
  • Evening surf: Evening surf (20 Sep, local time) - 2.5ft (0.8m), 5s period with SE swell.

The current surf forecast for Fire Island at 7AM is: 0.3m 11s primary swell from a Southeast direction and 0.4m 8s secondary swell from a Southeast direction, 0.6m 4s secondary swell from a East-southeast direction (forecast issued at 01:00am September 20). The wind direction is predicted to be onshore.

Time (EDT) & DateWave HeightWave Period
Morning (20 Sep)1ft (0.3m)11s
Afternoon (20 Sep)1ft (0.3m)11s
Evening (20 Sep)2.5ft (0.8m)5s

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


Short Range Forecast

Heavy rain (total 43mm), heaviest during Tue morning. Warm (max 20°C on Sun afternoon, min 12°C on Tue afternoon). Mainly fresh winds.

Sunday
20
Monday
21
Tuesday
22
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
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
0
0
0
0
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.8
ESE
7
0.3
SE
11
0.4
SE
8
0.3
SE
11
0.3
SE
11
0.7
SE
5
0.8
SE
5
0.8
SE
5
0.8
SE
5
0.6
ESE
6
0.5
SE
6
0.7
SE
9
0.6
SE
8
0.6
SE
8
0.9
E
6
1.1
E
7
1.2
E
7
1.3
E
7
1.5
E
7
1.7
E
7
1.8
E
8
1.8
E
8
2
E
8
2
E
8
Wave Graph
Metric surfscale
Energy kJ
62
22
14
18
18
21
37
28
29
28
21
78
35
38
62
103
127
173
230
295
362
391
482
507
Wind (km/h)
15
SE
15
SE
20
SSE
20
SSE
15
S
20
S
25
SSW
20
SW
25
N
25
NNE
25
NNE
30
NE
25
NE
20
ENE
25
ENE
25
ENE
25
ENE
25
NE
30
NE
35
ENE
35
ENE
35
NE
35
NE
35
ENE
Wind State
on
on
on
cross-on
cross-on
cross-on
cross-on
cross
cross-off
cross-off
cross-off
cross
cross
cross
cross-on
cross-on
cross
cross
cross
cross
cross
cross
cross
cross
High Tide
3:34AM0.73m
3:53PM0.88m
4:34AM0.77m
4:49PM0.91m
5:22AM0.82m
5:36PM0.94m
Low Tide
8:21AM0.31m
9:17PM0.30m
9:22AM0.30m
10:12PM0.26m
10:19AM0.26m
cloud
cloud
cloud
light rain
light rain
light rain
light rain
light rain
light rain
cloud
cloud
cloud
cloud
cloud
cloud
cloud
cloud
light rain
light rain
mod rain
mod rain
light rain
light rain
light rain
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:35
6:37
6:37
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:52
6:51
6:49
 mm
1
2
1
1
3
3
2
3
6
6
5
5
2
Temp °C
17
18
19
19
19
20
20
20
17
16
15
16
18
18
17
17
17
15
13
14
13
12
12
13
Feels °C
14
15
16
16
17
18
18
19
14
12
10
11
13
14
12
12
12
11
7
8
7
5
5
6
  • 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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