Fortress surfForecast / Long Island NY / USA

information circle16 Day Weather and Surf, issued 7 pm Friday 03 Apr 2026 EDT
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 1.1°C colder than average for this time of year)

Best Forecast Surf Conditions for Fortress this week:

The surf forecast for Fortress over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Saturday (Apr 04) at 8AM. The primary swell is predicted to be 1.2m and 7s period with a secondary swell of 0.2m and 7s. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at Fortress in the next 16 days are 2.4m 7s and forecast to arrive on Sunday (Apr 05) 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 0.9m 4s period and expected on Monday (Apr 06) at 5AM.

Wave TypeTime (EDT) & Date Wave Height & Period
Next good surf (1 star+) 8AM (Sat 4th Apr)4ft (1.2m) 7s
Best Surf11PM (Sun 5th Apr)5ft (1.6m) 8s
Most Powerful 2PM (Sun 5th Apr)8ft (2.4m) 7s

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


Updates in  hr  min  s Forecast update imminent

Short Range Forecast Light rain (total 9mm), mostly falling on Sun afternoon. Very mild (max 14°C on Fri night, min 1°C on Sat night). Winds increasing (light winds from the ENE on Sat morning, strong winds from the SSW by Sun afternoon).

Days 3-6 Weather Summary Mostly dry. Icy conditions (max 9°C on Mon night, min -3°C on Tue night). Winds decreasing (near gales from the NW on Tue night, light winds from the NE by Wed morning).

Saturday
04
Sunday
05
Monday
06
Tuesday
07
Wednesday
08
Thursday
09
Fri
10
NightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPM
Rating
(10 max)
0
0
0
0
0
1
1
0
0
1
0
0
0
0
0
0
0
0
0
0
0
Swell
Height Map
Wave Height (m) & direction (?)
1.5
SSW
1
S
1.5
E
1.2
E
2
S
2.1
S
1.4
S
1.1
S
1.4
SSW
1
S
0.7
S
0.8
S
0.4
SE
0.8
NE
0.6
E
0.7
SE
0.6
SE
0.6
SE
0.8
SE
0.9
ESE
1
ESE
Period(s) (?)67566888877774645581010
Wave
Graph
(?)Metric surfscale
Energy kJ (?)1558911194334573253161231103445611232518171478157225
Wind
(km/h)
30
SW
15
ENE
40
E
30
ESE
40
SSW
25
SW
30
WNW
25
WNW
35
SW
25
WNW
30
W
45
WNW
40
NNW
10
NE
15
SSE
30
S
25
S
30
SSW
25
SW
20
NE
35
E
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
off
cross-
on
cross-
on
oncross-
off
cross-
off
offoffcross-
off
offoffoffcross-
off
crosscross-
on
crosscrosscrosscross-
off
cross-
on
cross-
on
High Tide
/ height (m)
9:39PM
0.91
9:44AM
0.70
10:09PM
0.87
10:11AM
0.66
10:38PM
0.82
10:43AM
0.62
11:10PM
0.77
11:21AM
0.58
11:46PM
0.72
12:05PM
0.55
12:30AM
0.68
1:00PM
0.53
1:23AM
0.65
2:06PM
0.53
Low Tide
/ height (m)
3:30AM
-0.02
3:15PM
-0.01
4:05AM
0.02
3:49PM
0.02
4:41AM
0.07
4:24PM
0.07
5:21AM
0.12
5:04PM
0.12
6:07AM
0.17
5:49PM
0.18
7:03AM
0.20
6:44PM
0.22
8:12AM
0.20
7:54PM
0.25
Saturday
04
Sunday
05
Monday
06
Tuesday
07
Wednesday
08
Thursday
09
Fri
10
Sunrise-6:26--6:24--6:22--6:22--6:20--6:18--6:16-
Sunset--7:15--7:15--7:16--7:17--7:19--7:20--7:21
part cloud
part cloud
part cloud
light rain
cloud
mod rain
rain showers
clear
clear
part cloud
clear
clear
clear
clear
clear
clear
part cloud
clear
clear
part cloud
part cloud
Rain (mm)
---1-62--------------
Temp. °C141278111111489673-2-12591296
Feels °C (?)118-24366-4-13-2-3-10-7-7-5-1285-4
  • Map Icons:
  • Break
  • 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 Fortress Surf forecast

The above surf forecast table for Fortress provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Fortress can be found by selecting the local surf guide option on the grey menu. Our Fortress 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 (Fortress) 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 Fortress 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.

Fortress is 39 km (24 miles) from New London. If you plan a vacation in Long Island New York, look for hotels and other accommodation in New London. New London has rooms for a wide range of budgets as well as car hire and transport links.

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