Surf Forecasts:
Fortress surf forecast from 24 Aug 2026:
- Best quality surf: Monday 24 Aug, 2AM (local time) - 2.5ft (0.8m), 7s period, SSE swell with cross-offshore winds.
- Most powerful swell: Friday 28 Aug, 2AM (local time) - 4ft (1.2m), 6s period, SSE swell with 94 kJ wave energy.
- Next surfable swell (1★+): Monday 24 Aug, 2AM (local time) - 2.5ft (0.8m), 7s period with SSE 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 24) at 2AM. The primary swell is predicted to be 0.8m and 7s period with a secondary swell of 0.2m and 6s. 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 1.2m 6s and forecast to arrive on Friday (Aug 28) at 2AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.5m 3s period and expected on Wednesday (Aug 26) at 11PM.
| Wave Type | Time (EDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 2AM (Mon 24th Aug) | 2.5ft (0.8m) 7s |
| Best Surf | 2AM (Mon 24th Aug) | 2.5ft (0.8m) 7s |
| Most Powerful | 2AM (Fri 28th Aug) | 4ft (1.2m) 6s |
Table - best surf conditions forecast for Fortress over the next 16 days.
The Lowdown
Alright, Rusty here. Let's break down what Fortress is looking like for the next couple of weeks.
Honestly, the first week is a tough one. From Monday the 24th of August through the end of the month, it's a whole lot of knee-high mush with bad wind. You're looking at tiny 1ft to 2.5ft swells from the south and southeast, with periods so short they've got no grunt. The combined swell energy is weak, mostly under 100, and the wind is rarely working for you. Monday morning the 24th gives you a tiny 3ft south swell, but it's a messy cross-off wind and only a 6-second period – it's surfable but very ordinary. There's a little window on the morning of Monday the 31st of August where a 1ft southeast swell sneaks in with a very long 19-second period and a clean, offshore breeze from the WNW, but the size is so small it's barely a ripple. The rest of that week is a write-off. You're looking at days of poor conditions, with strong cross-shore winds and lumpy chop. It's a real dry spell.
The second week starts to show some signs of life. The first real standout, and the best on offer across the whole forecast, hits the morning of Wednesday the 2nd of September. The swell jumps to 2.5ft from the southeast, with a solid 13-second period. The combined energy hits a moderate 369, and the wind is a light, clean cross-off from the northwest. The water temp is about average for the time of year, nothing special. This is the one to circle. The break is a reef, so that long period energy will wrap in nicely. It's a beginner-friendly spot, which is good, because the crowds are likely to be there.
The only other moment that's worth a mention is the morning of Thursday the 3rd of September. A 4.5ft southeast swell rolls in with a strong 15-second period, pumping the combined energy up to 847 – that's a serious amount of power. But the wind is a howling 25 mph cross-shore from the NNE, with heavy rain. That's a washing machine. For a reef break, that's a no-go for surfing. The setup looks more interesting for kite surfing than paddle surfing. After that, the swell drops back down and the whole thing fades out into tiny, onshore dribble for the rest of the run. If you miss that Wednesday morning, you've missed the window.
Short Range ForecastMostly dry. Warm (max 25°C on Sun night, min 18°C on Wed morning). Wind will be generally light. | Days 5-7 Weather SummaryLight rain (total 9mm), mostly falling on Thu night. Warm (max 25°C on Fri night, min 21°C on Thu night). Wind will be generally light. | ||||||||||||||||||
Monday 24 | Tuesday 25 | Wednesday 26 | Thursday 27 | Friday 28 | Saturday 29 | ||||||||||||||
Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | |
Swell Height Map | |||||||||||||||||||
Wave Height (m) Direction Period (s) | SSE 7 | S 6 | S 6 | SE 11 | SE 11 | SE 10 | SE 10 | SE 9 | ESE 9 | ESE 8 | ESE 9 | ESE 9 | SSE 6 | SE 8 | SE 8 | S 7 | S 6 | S 6 | S 6 |
Wave Graph | |||||||||||||||||||
53 | 61 | 48 | 30 | 18 | 17 | 17 | 39 | 50 | 46 | 52 | 55 | 94 | 57 | 55 | 87 | 48 | 36 | 25 | |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | cross | off | off | cross-off | cross-off | off | cross-off | cross-off | cross | cross | cross-on | cross-on | cross-off | cross-off | cross | cross-off | cross |
High Tide | 6:10AM0.62m | 6:36PM0.80m | 6:56AM0.68m | 7:13PM0.84m | 7:34AM0.74m | 7:45PM0.87m | 8:07AM0.80m | 8:14PM0.88m | 8:37AM0.85m | 8:44PM0.89m | 9:07AM0.89m | 9:17PM0.88m | |||||||
Low Tide | 11:56PM0.22m | 11:19AM0.23m | 00:32AM0.16m | 12:09PM0.19m | 1:04AM0.11m | 12:53PM0.14m | 1:34AM0.06m | 1:34PM0.10m | 2:05AM0.02m | 2:14PM0.06m | 2:37AM-0.01m | 2:55PM0.05m | 3:11AM-0.02m | ||||||
— | 6:05 | — | — | 6:07 | — | — | 6:07 | — | — | 6:09 | — | — | 6:09 | — | — | 6:09 | — | — | |
7:35 | — | 7:32 | — | — | 7:31 | — | — | 7:30 | — | — | 7:29 | — | — | 7:27 | — | — | 7:24 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | 4 | 2 | — | 3 | — | — | — |
Temp °C | 25 | 24 | 24 | 24 | 21 | 23 | 23 | 19 | 23 | 23 | 24 | 24 | 24 | 21 | 23 | 25 | 23 | 25 | 26 |
Feels °C | 24 | 22 | 20 | 21 | 19 | 20 | 21 | 17 | 19 | 22 | 23 | 23 | 23 | 21 | 24 | 26 | 23 | 25 | 26 |
Swell 1 Height (m) Direction Period (s) | SSE 7 | SSE 6 | SE 11 | S 6 | S 6 | SE 6 | SSW 5 | SE 9 | ESE 9 | ESE 8 | ESE 9 | ESE 9 | SE 9 | SE 8 | S 6 | S 7 | S 6 | S 6 | S 6 |
53 | 51 | 19 | 25 | 10 | 10 | 5 | 39 | 50 | 46 | 52 | 55 | 59 | 57 | 31 | 87 | 48 | 36 | 25 | |
Swell 2 Height (m) Direction Period (s) | S 6 | SE 12 | E 6 | SE 11 | ESE 6 | SE 10 | SE 10 | SW 5 | S 6 | S 6 | — | E 11 | E 11 | S 5 | SE 8 | SE 8 | SE 8 | SE 8 | SE 8 |
3 | 21 | 1 | 30 | 8 | 17 | 17 | 5 | 1 | 3 | — | 2 | 2 | 19 | 55 | 30 | 23 | 22 | 17 | |
Swell 3 Height (m) Direction Period (s) | ESE 12 | — | SE 8 | E 7 | SE 11 | SSW 6 | ESE 6 | ESE 5 | S 6 | — | — | — | — | SW 6 | E 10 | E 10 | E 9 | E 9 | E 9 |
14 | — | 2 | 1 | 18 | 6 | 3 | 3 | 3 | — | — | — | — | 8 | 2 | 2 | 2 | 2 | 2 | |
Wind waves Height (m) Direction Period (s) | — | S 6 | S 6 | — | — | — | — | WNW 2 | SW 3 | SSW 3 | SSW 3 | S 4 | SSE 6 | SE 5 | — | — | — | — | — |
— | 61 | 48 | — | — | — | — | 1 | 2 | 5 | 7 | 33 | 94 | 12 | — | — | — | — | — | |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 0 | 0 | 187 | 0 | 51 | 187 | 15 | 2 | 9 | 163 | 193 | 1117 | 107 | 25 | 0 | 9 | 2 | 0 | 4 |
Best forecast wave conditions in Long Island New York | |||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||
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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.











