Surf Forecasts:
Fortress surf forecast from 22 Aug 2026:
- Best quality surf: Tuesday 25 Aug, 2AM (local time) - 3ft (0.9m), 6s period, S swell with offshore winds.
- Most powerful swell: Friday 28 Aug, 11PM (local time) - 4.5ft (1.4m), 8s period, SSE swell with 226 kJ wave energy.
- Next surfable swell (1★+): Tuesday 25 Aug, 2AM (local time) - 3ft (0.9m), 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 Tuesday (Aug 25) at 2AM. The primary swell is predicted to be 0.9m and 6s period with a secondary swell of 0.3m and 11s. The wind is predicted to be offshore as the swell arrives.
The most powerful waves expected at Fortress in the next 16 days are 1.4m 8s and forecast to arrive on Friday (Aug 28) at 11PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.4m 6s period and expected on Monday (Aug 24) at 11PM.
| Wave Type | Time (EDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 2AM (Tue 25th Aug) | 3ft (0.9m) 6s |
| Best Surf | 2AM (Tue 25th Aug) | 3ft (0.9m) 6s |
| Most Powerful | 11PM (Fri 28th Aug) | 4.5ft (1.4m) 8s |
Table - best surf conditions forecast for Fortress over the next 16 days.
The Lowdown
G'day, it's Rusty here. Let's have a look at what Fortress is offering over the next couple of weeks. I gotta say, it's a bit of a quiet run overall, with no real standout sessions that get the blood pumping. The first week through to the start of September is pretty ordinary, with poor surf conditions dominating. We've got some small, short-period swell bumping around, but the winds are mostly cross or onshore, keeping things messy. There's a notable gap right through the first few days where you wouldn't bother paddling out for anything decent. The water temp is about 1.8° warmer than average for the time of year—nothing too wild, just a touch toastier. The combined swell energy is mostly weak, sitting under 100 for the majority of the period.
Things do start to look a bit more promising towards the middle of the second week, specifically around Wednesday the 2nd of September. The week prior is filled with small, weak surf and poor conditions, but we finally see a change coming through. Tuesday the 1st of September has some clean, organised conditions, but the swell is still tiny at 1.3ft from the SE. The real standout, and the only one worth highlighting here, is Wednesday the 2nd of September. We get a jump in swell to 3.3ft from the SE with a period of 11 seconds, combined with that glassy, offshore wind from the WNW. The combined swell energy jumps to 333, which is a solid, moderate level of energy for this spot. It looks like the pick of the forecast window, but it's still not massive. That SE direction is a touch cross-onshore for Fortress, but the wind will be almost non-existent, so it'll be super clean. The next couple of days after that fade back into small, messy conditions with stronger winds.
Honestly, for most of this run, if you're looking for a paddle, you're going to be frustrated. The setup looks more interesting for a kite than a surfboard, with small, tidy swells and persistent cross-shore winds. Given the consistent but poor quality on offer, this blank run is a bit more typical for the area, but forecasts can always improve. Stay tuned.
Short Range ForecastLight rain (total 8mm), mostly falling on Sun morning. Warm (max 25°C on Sun afternoon, min 20°C on Sat morning). Winds increasing (light winds from the ENE on Sat afternoon, fresh winds from the SW by Mon night). | Days 4-6 Weather SummaryLight rain (total 4mm), mostly falling on Thu night. Warm (max 25°C on Thu night, min 20°C on Tue night). Winds decreasing (fresh winds from the WNW on Tue afternoon, calm by Thu night). | ||||||||||||||||||||
Saturday 22 | Sunday 23 | Monday 24 | Tuesday 25 | Wednesday 26 | Thursday 27 | Friday 28 | |||||||||||||||
AM | PM | 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) | ENE 5 | E 5 | ESE 7 | S 4 | S 4 | SE 6 | SE 7 | S 6 | S 6 | SE 11 | SE 10 | SSW 5 | SE 9 | ESE 8 | SE 8 | SE 10 | SE 9 | SE 8 | SE 9 | SE 8 | S 8 |
Wave Graph  | |||||||||||||||||||||
 kJ | 30 | 12 | 11 | 16 | 17 | 54 | 40 | 108 | 56 | 18 | 17 | 23 | 40 | 46 | 28 | 14 | 21 | 35 | 39 | 34 | 201 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | on | cross | cross | cross-off | cross-off | cross-off | off | cross-off | off | off | cross-off | cross | cross-off | cross-on | cross-on | cross-off | cross | cross-off | cross-off |
High Tide | 4:56PM0.75m | 5:09AM0.57m | 5:52PM0.77m | 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 | ||||||||
Low Tide | 8:54AM0.27m | 11:11PM0.26m | 10:13AM0.26m | 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 | |||||||
 | |  |  |  |  | | |  | | | |  | | | | | | | | | |
 | 6:03 | — | — | 6:05 | — | — | 6:05 | — | — | 6:07 | — | — | 6:07 | — | — | 6:09 | — | — | 6:09 | — | — |
 | — | 7:36 | — | — | 7:35 | — | — | 7:32 | — | — | 7:31 | — | — | 7:30 | — | — | 7:29 | — | — | 7:27 | — |
mm | — | — | — | 7 | — | 1 | — | — | — | — | — | — | — | — | — | — | — | 4 | 2 | 1 | — |
Temp °C | 20 | 20 | 21 | 23 | 25 | 25 | 23 | 23 | 24 | 23 | 23 | 23 | 21 | 23 | 24 | 24 | 24 | 25 | 25 | 25 | 25 |
Feels °C | 19 | 21 | 20 | 23 | 25 | 22 | 20 | 18 | 21 | 18 | 19 | 19 | 19 | 22 | 23 | 24 | 24 | 25 | 26 | 26 | 25 |
Swell 1 Height (m) Direction Period (s) | E 5 | E 5 | ESE 7 | E 4 | ESE 12 | SE 6 | SSW 6 | SE 11 | S 6 | SE 11 | SE 10 | SSW 5 | SE 9 | ESE 8 | SE 8 | SE 7 | SE 9 | SE 8 | SSE 5 | SSE 5 | S 8 |
| kJ | 27 | 12 | 11 | 5 | 14 | 54 | 40 | 19 | 56 | 18 | 17 | 23 | 40 | 46 | 28 | 13 | 21 | 35 | 20 | 17 | 201 |
Swell 2 Height (m) Direction Period (s) | ESE 8 | ESE 8 | SE 9 | ESE 12 | ESE 8 | ESE 12 | SE 7 | — | SE 11 | ESE 6 | ESE 6 | SE 10 | SSW 5 | S 7 | S 6 | SE 10 | ESE 7 | S 6 | SE 9 | SE 8 | SE 8 |
| kJ | 6 | 12 | 3 | 15 | 7 | 14 | 35 | — | 18 | 4 | 4 | 17 | 10 | 4 | 20 | 14 | 9 | 6 | 39 | 34 | 17 |
Swell 3 Height (m) Direction Period (s) | SE 13 | SE 13 | SE 13 | ESE 7 | ESE 7 | SE 12 | SE 12 | — | E 7 | — | E 6 | ESE 6 | — | — | — | E 11 | E 11 | E 10 | E 10 | SSW 6 | — |
| kJ | 7 | 7 | 6 | 5 | 5 | 22 | 21 | — | 1 | — | 1 | 3 | — | — | — | 2 | 2 | 2 | 2 | 6 | — |
Wind waves Height (m) Direction Period (s) | ENE 5 | — | E 3 | S 4 | S 4 | SSW 6 | — | S 6 | W 3 | SW 6 | SSW 4 | WSW 5 | — | S 6 | SW 4 | SSW 6 | S 3 | S 4 | — | — | — |
| kJ | 30 | — | 2 | 16 | 17 | 39 | — | 108 | 3 | 33 | 32 | 22 | — | 17 | 5 | 10 | 5 | 10 | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 1042 | 190 | 231 | 557 | 187 | 10 | 224 | 38 | 0 | 222 | 48 | 2 | 0 | 193 | 10 | 636 | 668 | 8 | 185 | 185 | 2 |
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.
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