Fortress Surf Break

Lat Long: 41.02° N 71.96° W

Fortress Surf Forecast and Surf Report

Issued: 1 am 15 Aug 2026 (local time)

Forecast update in  hr  min

Today's Fortress sea temperature is
22.4° C
0.4° 

Fortress surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.


Fortress surf forecast from 15 Aug 2026:

  • Best quality surf: Monday 17 Aug, 5PM (local time) - 5ft (1.6m), 6s period, S swell with glassy winds.
  • Most powerful swell: Monday 17 Aug, 2PM (local time) - 5.5ft (1.7m), 6s period, SSE swell with 223 kJ wave energy.
  • Next surfable swell (1★+): Monday 17 Aug, 5PM (local time) - 5ft (1.6m), 6s period with S 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 (Aug 17) at 5PM. The primary swell is predicted to be 1.6m and 6s period with a secondary swell of 1.4m and 6s. Another secondary swell of 1.1m and 5s is also forecast. The wind is predicted to be glassy as the swell arrives.

The most powerful waves expected at Fortress in the next 16 days are 1.7m 6s and forecast to arrive on Monday (Aug 17) at 2PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.6m 4s period and expected on Thursday (Aug 20) at 2AM.

Wave TypeTime (EDT) & Date Wave Height & Period
Next good surf (1 star+) 5PM (Mon 17th Aug)5ft (1.6m) 6s
Best Surf 5PM (Mon 17th Aug)5ft (1.6m) 6s
Most Powerful 2PM (Mon 17th Aug)5.5ft (1.7m) 6s

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


The Lowdown

Alright, this is Rusty, and I’ve been poring over the charts for our local patch. Gotta be straight with you – it’s a lean run ahead, and there’s no hiding from it.

We’re looking at a real struggle to get anything rideable for most of the next two and a half weeks. The only real whisper of hope comes on Monday the 17th of August at Fortress. This is a reef set-up that’s exposed to swell from the SE.

That Monday, a pulse pushes through. Morning sees a 4 ft swell from the SE with a period of 6 seconds, but the wind is offshore out of the WNW, blowing at 12 mph. It’s going to be clean. The combined energy is moderate (219), and the afternoon holds with a similar 4 ft from the S, period 7 seconds, and a gentle 9 mph offshore from the WNW again (energy 227). That’s the only window with any kind of shape. If you can get on it, you’ll be in luck, but it’s a short window and that period is short, so it’ll be a bit fat and quick on the face.

Other than that, it’s a whole lot of nothing. The rest of the period is plagued by cross-shore winds, onshore breezes, and tiny swell (mostly 1.0 ft to 2 ft). The combined energy values are nearly all below 100 (weak), and the wind is never your friend. Conditions are consistently rated as “poor” or worse. After the 17th, we don’t see another proper recommendation until late in the run. On Thursday the 27th of August, the morning sees very ordinary surfable waves with a 2 ft SE swell (period 10 seconds) but light cross-offshore wind – energy just breaks into three digits (109). The afternoon improves slightly with a clean 2 ft SE swell (period 10 seconds) and a 12 mph offshore from the W (energy 103). Compared to the rest, it’s a usable option, but it’s not a standout at all. It’s more of a “if you’re desperate” kind of session.

Honestly, with this persistent lack of quality and the small, weak swell, the setup at Fortress looks more interesting for kite surfing than paddle surfing for most of the month. The Saturday 29th and Sunday 30th of August drop right back into the doldrums with no hope.

The water temp isn’t mentioned in the data, so I can’t give you a specific number. But with such a flat spell, even the fish are probably bored.

It’s a tough outlook. The forecast can change, but right now, mark your calendar for that Monday the 17th if you want the only real taste of action.

Rusty.

Short Range Forecast

Light rain (total 2mm), mostly falling on Mon morning. Warm (max 24°C on Sat night, min 19°C on Sun morning). Mainly strong winds.

Days 4-6 Weather Summary

Light rain (total 9mm), mostly falling on Thu morning. Warm (max 26°C on Thu night, min 20°C on Tue morning). Winds decreasing (fresh winds from the SSW on Wed night, calm by Thu afternoon).

Saturday
15
Sunday
16
Monday
17
Tuesday
18
Wednesday
19
Thursday
20
Friday
21
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
0
0
0
0
0
0
0
2
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
S
6
0.2
SSE
6
0.2
S
6
0.2
S
6
0.5
S
6
0.9
SSW
4
1.6
S
6
1.6
S
6
1.1
SSE
7
1
SSE
7
0.6
SE
8
0.9
SSE
7
0.7
SE
6
0.6
SE
6
0.4
SE
9
0.3
SE
9
0.4
ESE
7
0.3
SE
9
0.4
SE
6
0.3
SE
8
0.4
SE
8
Wave Graph
Metric surfscale
Energy kJ
3
4
3
3
18
28
166
200
105
93
51
73
40
24
20
12
15
12
13
11
18
Wind (km/h)
10
NE
15
SSW
10
NW
5
SSE
25
SSW
30
SSW
40
SSE
0
ENE
25
N
10
NNE
10
SE
15
S
25
SSW
25
SSW
20
SW
15
NNE
5
W
25
NE
20
NE
15
SSE
10
S
Wind State
cross
cross
off
glassy
cross
cross
cross-on
glassy
cross-off
cross
cross-on
cross-on
cross
cross
cross-off
cross
glassy
cross-on
cross
cross-on
cross
High Tide
10:26AM1.00m
10:37PM0.90m
11:09AM0.98m
11:13PM0.82m
11:52AM0.93m
11:48PM0.74m
12:35PM0.87m
00:23AM0.67m
1:23PM0.81m
1:03AM0.61m
2:23PM0.77m
1:53AM0.57m
3:43PM0.74m
3:07AM0.55m
Low Tide
4:08PM-0.01m
4:21AM-0.02m
4:53PM0.05m
4:55AM0.03m
5:39PM0.12m
5:30AM0.09m
6:28PM0.20m
6:07AM0.15m
7:27PM0.26m
6:51AM0.20m
8:51PM0.30m
7:45AM0.24m
10:13PM0.29m
clear
clear
clear
clear
part cloud
part cloud
light rain
rain showers
clear
clear
clear
clear
clear
clear
rain showers
thunderstorm
clear
clear
clear
part cloud
rain showers
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:56
5:58
5:58
6:00
6:01
6:01
6:03
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:46
7:45
7:44
7:42
7:40
7:38
7:37
 mm
1
1
3
6
1
Temp °C
20
23
24
20
23
23
22
23
23
22
23
24
24
25
25
21
24
26
21
23
23
Feels °C
17
20
22
21
21
20
17
22
24
24
25
25
25
23
25
23
26
27
20
22
22
  • 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 
submit an eyeball surf report

Quick surf report for Fortress:

join our community of surf reporters

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.


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.

Nearest locationNearest