Fortress surfForecast / Long Island NY / USA

information circle16 Day Weather and Surf, issued 1 pm Sunday 31 May 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
12.4° C
(Which is 1.2°C colder than average for this time of year)

Fortress surf forecast from 31 May 2026:

  • Best quality surf: Monday 1 Jun, 2AM (local time) - 2ft (0.6m), 9s period, E swell with offshore winds.
  • Most powerful swell: Friday 5 Jun, 8AM (local time) - 3ft (0.9m), 8s period, SE swell with 115 kJ wave energy.
  • Next surfable swell (1★+): Monday 1 Jun, 2AM (local time) - 2ft (0.6m), 9s period with E swell.

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 Monday (Jun 01) at 2AM. The primary swell is predicted to be 0.6m and 9s period with a secondary swell of 0.5m and 5s. The wind is predicted to be offshore as the swell arrives.

The most powerful waves expected at Fortress in the next 16 days are 0.9m 8s and forecast to arrive on Friday (Jun 05) at 8AM. Winds are predicted to be offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.0m 5s period and expected on Friday (Jun 05) at 11PM.

Wave TypeTime (EDT) & Date Wave Height & Period
Next good surf (1 star+) 2AM (Mon 1st Jun)2ft (0.6m) 9s
Best Surf 2AM (Mon 1st Jun)2ft (0.6m) 9s
Most Powerful 8AM (Fri 5th Jun)3ft (0.9m) 8s

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


Updates in  hr  min  s Forecast update imminent

Short Range Forecast

Mostly dry. Very mild (max 17°C on Sun afternoon, min 10°C on Mon afternoon). Winds decreasing (strong winds from the NE on Mon afternoon, calm by Tue morning).

Days 5-7 Weather Summary

Mostly dry. Warm (max 23°C on Fri afternoon, min 16°C on Wed night). Winds increasing (light winds from the WSW on Wed night, fresh winds from the SW by Fri afternoon).

Sun
31
Monday
1
Tuesday
2
Wednesday
3
Thursday
4
Friday
5
Saturday
6
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
Rating
(10 max)
0
1
0
0
0
1
0
0
0
0
0
0
0
0
1
0
0
1
1
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)
0.8
ESE
10
0.6
E
9
0.5
E
9
1
E
4
0.8
E
5
0.6
E
10
0.5
ESE
10
0.4
ESE
10
0.3
ESE
12
0.2
E
9
0.2
SSE
7
0.3
SE
7
0.5
SE
8
0.8
SE
9
0.9
SE
8
0.9
SE
8
0.6
SE
10
0.6
SE
9
0.4
SSE
8
0.6
S
7
0.4
SE
8
Wave Graph
Metric surfscale
Energy kJ
133
60
40
35
33
65
56
32
27
7
5
7
28
97
95
93
77
59
25
37
18
Wind (km/h)
30
SW
15
W
10
NNE
40
NE
20
NNE
0
NW
25
S
10
WSW
10
ENE
15
SSW
10
SW
15
S
20
S
20
SW
15
W
30
SW
20
W
15
W
15
WNW
20
E
25
E
cross-off
off
cross
cross
cross
glassy
cross
cross-off
cross-on
cross
cross-off
cross-on
cross
cross-off
off
cross-off
cross-off
off
off
on
on
High Tide
8:52PM0.88m
9:05AM0.66m
9:23PM0.87m
9:42AM0.66m
9:52PM0.84m
10:19AM0.66m
10:22PM0.81m
10:58AM0.65m
10:57PM0.78m
11:38AM0.66m
11:37PM0.75m
12:22PM0.67m
00:22AM0.72m
1:09PM0.70m
Low Tide
2:49AM0.07m
2:21PM0.10m
3:24AM0.07m
3:00PM0.12m
4:01AM0.08m
3:41PM0.15m
4:38AM0.09m
4:24PM0.18m
5:17AM0.10m
5:11PM0.20m
5:58AM0.11m
6:03PM0.23m
6:44AM0.12m
part cloud
part cloud
clear
part cloud
clear
clear
part cloud
part cloud
clear
clear
clear
clear
clear
clear
clear
part cloud
part cloud
clear
part cloud
part cloud
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:18
5:16
5:16
5:16
5:16
5:16
5:15
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
8:12
8:13
8:14
8:14
8:15
8:15
8:15
8:16
Temp °C
17
15
15
15
12
13
13
14
15
18
16
16
17
17
22
23
23
21
25
25
14
10
13
12
9
6
12
8
12
13
14
12
14
13
14
19
19
21
19
22
23
9
Swell 1
Height (m)
Direction
Period (s)
0.8
ESE
10
0.6
E
9
0.5
SSW
6
0.4
SSW
6
0.3
ESE
9
0.6
E
10
0.5
ESE
10
0.4
ESE
10
0.3
ESE
12
0.2
SSE
8
0.2
ESE
6
0.3
ESE
6
0.5
SE
8
0.8
SE
9
0.9
SE
8
0.9
SE
8
0.6
SE
10
0.6
SE
9
0.5
SSW
6
0.6
S
7
0.4
SE
8
Energy kJ
133
60
18
10
15
65
56
32
27
6
3
6
28
97
95
93
77
59
18
37
18
Swell 2
Height (m)
Direction
Period (s)
0.5
SSW
5
0.5
E
9
0.2
SSW
5
0.2
S
5
0.1
SE
9
0.3
SSE
8
0.2
SSE
8
0.2
E
6
0.2
SSE
7
0.3
SE
7
0.3
SE
11
0.4
SE
10
0.4
SE
9
0.6
SSW
5
0.5
SSW
5
0.4
SSE
8
0.4
SE
9
0.3
SSW
6
Energy kJ
15
40
3
2
3
11
6
3
5
7
19
36
22
22
15
25
20
8
Swell 3
Height (m)
Direction
Period (s)
0.6
WSW
5
0.1
S
9
0.1
SE
10
0.1
SE
8
0.2
S
6
0.2
E
9
0.1
SE
8
0.1
SE
9
0.2
SSE
7
0.3
SW
4
0.5
ESE
8
0.3
ESE
7
0.3
SE
9
0.3
SSE
8
0.2
SSE
7
Energy kJ
21
2
4
3
3
7
3
3
5
3
32
9
13
12
5
Wind waves
Height (m)
Direction
Period (s)
0.9
SW
4
1
E
4
0.8
E
5
0.2
S
6
0.2
SSW
3
0.4
S
7
0.5
SW
3
0.7
SSW
4
0.7
SW
6
0.9
E
4
0.7
E
4
Energy kJ
21
35
33
3
1
15
5
12
33
27
16
Nearest Offshore or Glassy
Rating
(10 max)
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
Distance (km)
55
0
2
160
20
0
161
2
193
557
394
223
365
9
0
163
10
0
0
47
668
Best forecast wave conditions in Long Island New York
Rating
(10 max)
1
1
1
1
1
1
1
1
1
1
1
Best forecast wave conditions in United States
Rating
(10 max)
2
1
1
2
1
3
2
2
3
2
3
2
2
3
1
1
1
3
1
1
4
Header Global
Rating
(10 max)
5
5
4
5
5
4
4
5
5
5
4
5
5
6
9
9
7
9
9
9
9
  • 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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