Surf Forecasts:
Fortress surf forecast from 7 Sep 2026:
- Best quality surf: Thursday 10 Sep, 11PM (local time) - 3.5ft (1.0m), 7s period, SSW swell with offshore winds.
- Most powerful swell: Thursday 10 Sep, 5AM (local time) - 6ft (1.9m), 6s period, SSW swell with 297 kJ wave energy.
- Next surfable swell (1★+): Thursday 10 Sep, 11PM (local time) - 3.5ft (1.0m), 7s 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 Thursday (Sep 10) at 11PM. The primary swell is predicted to be 1.0m and 7s period with a secondary swell of 0.3m and 10s. The wind is predicted to be offshore as the swell arrives.
The most powerful waves expected at Fortress in the next 16 days are 1.9m 6s and forecast to arrive on Thursday (Sep 10) at 5AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.7m 6s period and expected on Wednesday (Sep 09) at 11PM.
| Wave Type | Time (EDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 11PM (Thu 10th Sep) | 3.5ft (1.0m) 7s |
| Best Surf | 11PM (Thu 10th Sep) | 3.5ft (1.0m) 7s |
| Most Powerful | 5AM (Thu 10th Sep) | 6ft (1.9m) 6s |
Table - best surf conditions forecast for Fortress over the next 16 days.
The Lowdown
Right then. Rusty here.
Alright, I’ve looked over the charts for Fortress, and to be straight with you, it’s a grim outlook. There isn’t a single day in this 16-day window that offers any kind of decent surf. The whole period is a write-off, so don't bother getting the wax off the shelf just yet.
The first few days are a flat, windy mess. Monday the 7th has a tiny 1ft easterly swell, but it’s crossed up by a strong NW wind first thing. The wind swings offshore later, but with almost no energy, you’d be sat on your board watching the horizon. The whole first week, right through to Sunday the 13th, is plagued by weak, short-period slop. The strongest “swell” we see all week is on Thursday the 10th, with a couple of 5ft pulses from the SSW, but the period is a pathetic 7 seconds, meaning it’ll just be a fat, rolling closeout. The wind is also a howling 35 km/h in the morning, so expect heavy chop. The combined energy hits 215 on Thursday morning, which sounds big on paper, but with that wind and short period, it’s all fuss and no substance—more of a kite-surfing chop than anything a paddler wants.
The second week is even more depressing. It’s a slow, drawn-out fade from Tuesday the 16th onwards. Swell heights struggle to break 2ft, and the periods are uniformly short and weak. The combined energy figures are all in the low teens and twenties, just pathetic. There is a brief moment of offshore wind on the morning of Wednesday the 16th, but the swell is 2ft of 5-second junk. Then again on the morning of Saturday the 19th, we have a 2ft SSE swell with a 4-second period and a 40 km/h SW wind—absolutely unridable.
Frankly, this is a classic blank run for a spot like Fortress. It’s a reef break that needs proper action to work, and it’s just not getting any. Don’t hold your breath. Forecasts can change, but right now, leave the board in the bag.
Rusty.
Short Range ForecastMostly dry. Warm (max 25°C on Mon afternoon, min 18°C on Mon morning). Winds increasing (calm on Tue night, strong winds from the SW by Wed night). | Days 4-6 Weather SummaryMostly dry. Warm (max 24°C on Thu afternoon, min 17°C on Fri night). Winds decreasing (fresh winds from the SW on Thu afternoon, light winds from the SSE by Sat night). | ||||||||||||||||||||
Monday 7 | Tuesday 8 | Wednesday 9 | Thursday 10 | Friday 11 | Saturday 12 | Sunday 13 | |||||||||||||||
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) | E 10 | E 10 | E 9 | E 9 | SE 9 | SE 9 | SSW 4 | SSW 4 | SSW 6 | SSW 7 | SSW 7 | SSW 7 | S 7 | S 6 | S 6 | SE 9 | SE 10 | SE 10 | SE 10 | SE 9 | SE 9 |
Wave Graph  | |||||||||||||||||||||
 kJ | 18 | 17 | 7 | 6 | 3 | 3 | 4 | 24 | 223 | 270 | 178 | 79 | 44 | 31 | 19 | 14 | 14 | 15 | 47 | 31 | 29 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | off | off | cross-off | off | cross | cross | cross-off | cross-off | cross-off | cross-off | cross-off | off | cross | cross-on | on | cross | cross | cross | cross-off |
High Tide | 5:44PM0.94m | 6:12AM0.83m | 6:39PM0.98m | 7:03AM0.91m | 7:27PM0.99m | 7:50AM0.98m | 8:11PM0.98m | 8:33AM1.02m | 8:51PM0.95m | 9:14AM1.04m | 9:28PM0.91m | 9:53AM1.02m | 10:02PM0.85m | ||||||||
Low Tide | 10:47AM0.09m | 11:59PM0.04m | 11:51AM0.04m | 00:44AM-0.01m | 12:46PM-0.02m | 1:24AM-0.04m | 1:34PM-0.05m | 2:00AM-0.05m | 2:19PM-0.05m | 2:34AM-0.05m | 3:01PM-0.04m | 3:07AM-0.03m | 3:41PM0.01m | 3:38AM0.01m | |||||||
 | |  |  | | | | |  |  | |  | | | | | | | | | | |
 | 6:18 | — | — | 6:20 | — | — | 6:20 | — | — | 6:22 | — | — | 6:22 | — | — | 6:24 | — | — | 6:24 | — | — |
 | — | 7:10 | — | — | 7:08 | — | — | 7:07 | — | — | 7:06 | — | — | 7:04 | — | — | 7:01 | — | — | 7:00 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 20 | 25 | 25 | 21 | 25 | 25 | 23 | 23 | 23 | 23 | 24 | 24 | 18 | 22 | 22 | 17 | 19 | 21 | 21 | 22 | 22 |
Feels °C | 15 | 21 | 21 | 18 | 21 | 21 | 23 | 21 | 19 | 20 | 21 | 23 | 12 | 18 | 17 | 14 | 19 | 20 | 19 | 20 | 20 |
Swell 1 Height (m) Direction Period (s) | E 10 | E 10 | E 9 | SSW 4 | SE 9 | SE 9 | SE 8 | SE 10 | SE 9 | SE 8 | SE 9 | SSW 7 | S 7 | S 6 | S 6 | SSW 6 | SE 10 | SE 10 | SE 10 | SE 9 | SE 9 |
| kJ | 18 | 17 | 7 | 2 | 3 | 3 | 3 | 15 | 12 | 11 | 13 | 79 | 44 | 31 | 19 | 6 | 14 | 15 | 47 | 31 | 29 |
Swell 2 Height (m) Direction Period (s) | SE 9 | SE 8 | SE 8 | SE 9 | E 9 | E 9 | SE 10 | E 9 | E 8 | E 8 | E 8 | ESE 10 | ESE 10 | ESE 10 | SE 9 | SSE 6 | SSE 6 | SSE 6 | — | — | — |
| kJ | 3 | 3 | 3 | 3 | 1 | 2 | 4 | 2 | 1 | 1 | 1 | 9 | 9 | 9 | 3 | 4 | 3 | 3 | — | — | — |
Swell 3 Height (m) Direction Period (s) | S 5 | S 5 | SW 4 | E 9 | — | S 5 | E 9 | — | — | — | — | — | — | — | SE 7 | SE 9 | SSW 5 | SW 5 | — | — | — |
| kJ | 1 | 1 | 1 | 6 | — | 1 | 2 | — | — | — | — | — | — | — | 2 | 14 | 3 | 1 | — | — | — |
Wind waves Height (m) Direction Period (s) | NW 3 | W 2 | — | — | SW 3 | SW 3 | SSW 4 | SSW 4 | SSW 6 | SSW 7 | SSW 7 | NW 2 | NNW 3 | — | N 3 | NE 3 | — | S 5 | — | S 3 | S 3 |
| kJ | 3 | 1 | — | — | 2 | 4 | 3 | 24 | 223 | 270 | 178 | 2 | 4 | — | 1 | 1 | — | 2 | — | 1 | 5 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 15 | 163 | 394 | 451 | 803 | 636 | 815 | 1065 | 1065 | 185 | 38 | 2 | 2 | 10 | 676 | 803 | 803 | 273 | 815 | 219 | 187 |
Best forecast wave conditions in Long Island New York | |||||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||||
Header Global | |||||||||||||||||||||
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
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