Fire Island Surf Break

Lat Long: 40.73° N 72.87° W

Fire Island 48 hour detailed Surf Forecast

Issued: 7 pm 17 Sep 2026 (local time)

Forecast update in  hr  min

Today's Fire Island sea temperature is
21.9°C
1.9° 

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 (18 Sep):

  • Morning surf: Morning surf (18 Sep, local time) - 3.5ft (1.0m), 5s period with SW swell.
  • Afternoon surf: Afternoon surf (18 Sep, local time) - 1ft (0.3m), 12s period with SE swell.
  • Evening surf: Evening surf (18 Sep, local time) - 1ft (0.3m), 12s period with SE swell.

The current surf forecast for Fire Island at 1AM is: 0.7m 4s primary swell from a South-southwest direction and 0.3m 7s secondary swell from a East direction, 0.1m 12s secondary swell from a Southeast direction (forecast issued at 07:00pm September 17). The wind direction is predicted to be cross-shore.

Time (EDT) & DateWave HeightWave Period
Morning (18 Sep)3.5ft (1.0m)5s
Afternoon (18 Sep)1ft (0.3m)12s
Evening (18 Sep)1ft (0.3m)12s

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


Short Range Forecast

Light rain (total 3mm), mostly falling on Sun afternoon. Warm (max 27°C on Fri afternoon, min 15°C on Sat morning). Mainly fresh winds.

Thu
17
Friday
18
Saturday
19
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
1
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
Wave
Height (m)
Direction
Period (s)
0.2
SSE
12
0.2
SSE
12
0.2
SSE
12
0.8
SSW
5
0.6
S
5
1
SW
5
0.3
SE
12
0.3
SE
12
0.3
SE
12
0.3
SE
12
0.3
SE
12
0.3
SE
12
0.3
SE
12
0.3
SE
12
0.9
E
6
1.2
E
6
1.3
E
7
0.9
ESE
7
0.8
ESE
7
Wave Graph
Metric surfscale
Energy kJ
15
15
15
24
16
50
23
23
22
22
22
21
21
24
55
116
153
75
71
Wind (km/h)
20
SSW
20
S
25
SSW
25
SW
20
SW
10
NW
15
N
15
N
20
NNW
20
N
25
NNE
30
NNE
25
NE
25
NE
20
NE
15
E
20
ESE
15
ESE
20
ESE
Wind State
cross-on
cross-on
cross
cross
cross-off
off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross
cross
cross
cross-on
cross-on
cross-on
on
High Tide
1:08AM0.76m
1:35PM0.89m
2:21AM0.73m
2:46PM0.87m
Low Tide
6:19PM0.26m
6:22AM0.27m
7:16PM0.30m
7:19AM0.30m
8:17PM0.31m
part cloud
cloud
cloud
part cloud
part cloud
part cloud
clear
clear
part cloud
clear
clear
clear
cloud
part cloud
clear
part cloud
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:33
6:35
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:57
6:55
6:53
 mm
Temp °C
22
22
22
22
22
22
24
27
27
25
21
18
16
15
15
17
16
16
16
Feels °C
21
21
20
20
22
24
23
26
24
22
17
11
10
9
11
14
12
13
12
  • 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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