Fortress Surf Break

Lat Long: 41.02° N 71.96° W

Fortress Surf Forecast and Surf Report

Issued: 1 pm 15 Jul 2026 (local time)

Forecast update in  hr  min

Today's Fortress sea temperature is
20.5° C
0.6° 

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


Fortress surf forecast from 15 Jul 2026:

  • Best quality surf: Monday 20 Jul, 2AM (local time) - 4ft (1.2m), 9s period, S swell with cross-offshore winds.
  • Most powerful swell: Monday 20 Jul, 5PM (local time) - 4.5ft (1.3m), 9s period, S swell with 280 kJ wave energy.
  • Next surfable swell (1★+): Wednesday 15 Jul, 5PM (local time) - 2.5ft (0.8m), 6s period with SSW 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 Wednesday (Jul 15) at 5PM. The primary swell is predicted to be 0.8m and 6s period with a secondary swell of 0.2m and 9s. The wind is predicted to be offshore as the swell arrives.

The most powerful waves expected at Fortress in the next 16 days are 1.3m 9s and forecast to arrive on Monday (Jul 20) at 5PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.2m 6s period and expected on Thursday (Jul 16) at 8PM.

Wave TypeTime (EDT) & Date Wave Height & Period
Next good surf (1 star+) 5PM (Wed 15th Jul)2.5ft (0.8m) 6s
Best Surf 2AM (Mon 20th Jul)4ft (1.2m) 9s
Most Powerful 5PM (Mon 20th Jul)4.5ft (1.3m) 9s

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


The Lowdown

Alright folks, Rusty here with a look at the coming swell window for Fortress. This is a reef break set-up, pretty straightforward spot.

Right out of the gate, the first surf I’d even point you toward is Wednesday the 15th. It’s not going to be a classic, but it’s the only game in town early on. We’ve got a small 3ft swell from the SW, with a short, weak period of 6 seconds, so don’t expect much push. The wind is howling offshore at 16 mph from the W, which will keep the surface cleaned up, but the wave energy is really low, just 85 (combined energy). Expect ordinary, surfable little waves – not a day to drive for. The water temp is 69°, which is pretty normal for this time of year.

Thursday the 16th drops off fast – the swell bottoms out to 2ft in the morning with weak energy (29). The rest of that week through Saturday the 19th is pretty much a write-off. You’re looking at a long stretch of small, weak swell and onshore or cross-off winds that just won’t cooperate. It’s going to be flat or near-flat for days.

Now, here’s where it gets interesting. Monday the 20th is a standout. We’ve got a 4ft swell from the S, period pushing up to 9 seconds, and the energy jumps to 241 (moderate energy). The real beauty is the wind: glassy conditions in the morning. That’s a window for clean, fun waves on the reef. It’s still a manageable size for intermediates, and the longer period will give them some shape. This is your best bet in the whole run – a genuine good surf session.

After that, the pattern gets messy again. Tuesday the 21st and Wednesday the 22nd see the swell stick around 4-4ft from the S, but the wind shifts cross-off or even cross-on, ruining the quality. The energy is decent (up to 269), but the conditions are poor. You’d be hunting for a clean corner.

From Thursday the 23rd through the 30th, the swell drops right back down to tiny knee-high stuff (1 to 3ft) with weak periods and onshore or cross-shore winds from the SE or SSW. It’s a long, flat stretch to end the outlook. The only exception is Sunday the 26th afternoon, where we see a pulse of 4ft from the S with 8-second period and 265 energy, and a solid offshore wind from the W at 13 mph. That could give you another clean, fun session, but it’s the back half of the month and less certain.

Honestly, keep your eyes on Monday the 20th morning. That glassy window with moderate south swell is the clear winner. Everything else is small, wind-affected, or both.

Rusty.

Short Range Forecast

Some drizzle, heaviest during Sat morning. Warm (max 33°C on Wed afternoon, min 21°C on Sat morning). Winds decreasing (fresh winds from the SW on Thu afternoon, calm by Fri morning).

Days 5-7 Weather Summary

Light rain (total 7mm), mostly falling on Sat afternoon. Warm (max 25°C on Sun afternoon, min 20°C on Sat afternoon). Winds decreasing (fresh winds from the SW on Sat night, calm by Mon morning).

Wed
15
Thursday
16
Friday
17
Saturday
18
Sunday
19
Monday
20
Tuesday
21
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
Rating
(10 max)
1
0
0
0
0
0
0
0
0
0
0
0
1
2
2
1
0
0
0
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
SSW
6
0.6
SSW
6
0.5
S
6
0.1
SE
15
0.6
SSW
6
0.5
S
6
0.6
S
6
0.6
S
6
0.6
S
5
0.4
S
5
1.6
SSW
7
1.5
S
7
1.4
S
8
1.2
S
9
1.2
S
9
1.3
S
9
1.1
S
8
1.2
S
8
0.7
S
8
1.2
S
7
1
S
7
Wave Graph
Metric surfscale
Energy kJ
49
27
18
9
24
17
24
24
17
7
239
225
229
210
235
280
167
182
57
150
97
Wind (km/h)
20
NW
10
N
20
WSW
35
SW
15
NW
5
NW
25
SW
15
SW
25
WSW
35
S
30
SW
35
W
35
NW
15
NNW
0
SSW
20
SW
20
SW
20
S
20
SE
25
N
10
NE
Wind State
off
cross-off
cross-off
cross-off
cross-off
glassy
cross-off
cross-off
cross-off
cross-on
cross-off
off
off
cross-off
glassy
cross-off
cross-off
cross
cross-on
cross-off
cross-on
High Tide
9:35PM1.07m
10:07AM0.94m
10:23PM1.02m
10:56AM0.95m
11:08PM0.94m
11:45AM0.94m
11:52PM0.85m
12:33PM0.91m
00:35AM0.76m
1:24PM0.88m
1:18AM0.68m
2:18PM0.84m
2:02AM0.61m
Low Tide
2:46PM-0.09m
3:40AM-0.12m
3:39PM-0.06m
4:23AM-0.09m
4:31PM-0.02m
5:04AM-0.05m
5:25PM0.05m
5:44AM0.01m
6:20PM0.11m
6:23AM0.07m
7:21PM0.17m
7:03AM0.12m
8:32PM0.22m
7:48AM0.17m
clear
part cloud
part cloud
part cloud
clear
part cloud
part cloud
part cloud
light rain
mod rain
rain showers
part cloud
clear
clear
part cloud
part cloud
part cloud
part cloud
rain showers
thunderstorm
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:28
5:28
5:30
5:31
5:31
5:33
5:33
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
8:17
8:17
8:16
8:15
8:15
8:15
8:14
8:13
 mm
1
6
1
11
3
Temp °C
33
31
26
29
28
23
26
25
24
20
23
23
25
25
21
23
23
24
22
22
19
Feels °C
30
26
24
24
26
22
21
20
23
19
22
21
22
21
21
20
20
23
21
24
18
  • Map Icons:
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  • 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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