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Surf Forecasts:

Fortress surfForecast / Long Island NY / USA

information circle48hr Weather and Surf, issued 6 pm Sunday 18 Jan 2026 EST
Forecast update in hr  min  s Forecast update imminent
Fortress surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Fortress sea temperature is
4.5° C
 (Which is 1.6°C colder than average for this time of year)

How big are the waves at Fortress today?

The current surf forecast for Fortress at 11PM is: 0.8m 7s primary swell from a South direction and 0.4m 9s secondary swell from a Southeast direction, 0.6m 4s secondary swell from a Northeast direction (forecast issued at 06:00pm January 18). The wind direction is predicted to be cross-offshore.

Time (EST) & DateWave HeightWave Period
Morning (18 Jan)--
Afternoon (18 Jan)3.5ft (1.0m)8s
Evening (18 Jan)2.5ft (0.8m)8s

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

Updates in  hr  min  s Forecast update imminent 
12 DaysHourly
Print Table
Sunday
18
Monday
19
Tuesday
20
Wednesday
21
4 PM7 PM10 PM1 AM4 AM7 AM10 AM1 PM4 PM7 PM10 PM1 AM4 AM7 AM10 AM1 PM4 PM7 PM10 PM1 AM4 AM7 AM10 AM1 PM
Rating
(10 max)
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Swell
Height Map
See all maps
Wave Height (m) & direction (?)
1
S
0.9
SSE
0.8
SSE
0.7
S
0.6
SE
0.6
SE
0.7
S
1
SE
1.7
SW
1.7
SW
1.2
SSE
1.4
S
1.2
S
1
S
0.7
S
0.6
S
0.5
S
0.4
SE
0.4
SE
0.3
SE
0.4
SE
0.4
SE
0.4
SE
0.4
SE
Period(s) (?)8887888106699998889988899
Wave
Graph
(?)Metric surfscale
Energy kJ (?)12496755255535818821721222230422014566473328201118182022
Wind
(km/h)
25
NE
25
NE
20
NNE
20
NNW
15
NW
30
WSW
35
W
40
WSW
45
WSW
45
WSW
50
W
40
W
35
W
35
W
40
W
45
W
45
WNW
40
W
40
W
30
WNW
25
W
25
W
25
WSW
30
SW
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
on		crosscrosscross-
off		offcross-
off		cross-
off		cross-
off		cross-
off		cross-
off		cross-
off		offoffoffoffoffoffoffoffoffoffcross-
off		cross-
off		cross-
off
High Tide
/ height (m)
7:51PM
0.65
7:54AM
0.79
8:23PM
0.68
8:25AM
0.79
8:56PM
0.71
8:59AM
0.77
Low Tide
/ height (m)
1:21PM
-0.05
1:06AM
0.01
1:54PM
-0.08
1:48AM
-0.01
2:27PM
-0.10
2:31AM
-0.02
Sunday
18
Monday
19
Tuesday
20
Wednesday
21
Sunrise------7:07-------7:07-------7:07-
Sunset4:46-------4:47-------4:49-------
light snow
light snow
light snow
light snow
light snow
cloud
clear
clear
cloud
clear
clear
part cloud
clear
clear
cloud
part cloud
cloud
cloud
cloud
clear
clear
clear
part cloud
cloud
Rain (mm)
------------------------
Temp. °C000000-1-1000-4-5-6-7-6-5-5-5-6-6-7-6-3
Feels °C (?)-7-7-6-6-5-8-11-12-12-12-13-15-15-16-18-18-17-16-16-15-15-15-14-12
  • 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

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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 Fortress 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.

View detailed surf forecast for Fortress at:
surf-forecast.com

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