Surf Forecasts:
Fortress surf forecast from 30 Jul 2026:
- Best quality surf: Thursday 30 Jul, 11PM (local time) - 3ft (0.9m), 8s period, SSE swell with glassy winds.
- Most powerful swell: Thursday 30 Jul, 11AM (local time) - 3.5ft (1.1m), 9s period, SSE swell with 172 kJ wave energy.
- Next surfable swell (1★+): Thursday 30 Jul, 11PM (local time) - 3ft (0.9m), 8s 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 Thursday (Jul 30) at 11PM. The primary swell is predicted to be 0.9m and 8s period with a secondary swell of 0.5m and 5s. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Fortress in the next 16 days are 1.1m 9s and forecast to arrive on Thursday (Jul 30) at 11AM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.8m 4s period and expected on Tuesday (Aug 04) at 11PM.
| Wave Type | Time (EDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 11PM (Thu 30th Jul) | 3ft (0.9m) 8s |
| Best Surf | 11PM (Thu 30th Jul) | 3ft (0.9m) 8s |
| Most Powerful | 11AM (Thu 30th Jul) | 3.5ft (1.1m) 9s |
Table - best surf conditions forecast for Fortress over the next 16 days.
The Lowdown
Alright, this is Rusty. Gotta be upfront with you – the outlook for the next 16 days is about as flat as it gets. We’ve got a long dry spell, so let’s break it down.
Starting now and into the first couple of days, there’s hardly anything worth paddling out for. Thursday the 30th of July at Fortress (reef) shows a SSE swell around 4ft (206 combined energy – moderate), but it’s cross-shore from the NNE at 16 mph, choppy and messy – poor surf conditions. Water temp is 69°, a bit cooler than normal for the time of year (anomaly -2°F). Not a good start.
Friday the 31st morning cleans up a little: offshore from the W at 3 mph, a 3ft SSE swell (114 combined energy), but it’s still very ordinary. That’s the best we get early on, and it’s nothing special.
From Saturday the 1st of August all the way through to Tuesday the 11th of August, it’s a long, frustrating stretch. Swell sizes mostly stay between 1ft and 3ft, period short (5–9 seconds), and wind is all over the place – cross, cross-on, onshore, sometimes blowing over 21 mph with thunderstorms. There are a few clean windows, like Monday the 10th of August morning with a glassy ESE breeze and a 2ft SSE swell (51 combined energy), but the waves are just too tiny and weak to surf. Nothing stands out. Combined energy stays under 100 most days – weak, weak stuff.
The only moment that might get your attention is Wednesday the 12th of August morning at Fortress. Dead calm, glassy, with a 4ft S swell (89 combined energy – still weak), period of just 6 seconds. It’s surfable but very ordinary, not a true standout. After that, it’s back to small, choppy waves right through to the end.
Bottom line: leave the board in the rack. Wave energy is low, period short, and consistent clean surf just isn’t on the cards. Not our time.
- Rusty
Short Range ForecastLight rain (total 5mm), mostly falling on Thu morning. Warm (max 24°C on Fri night, min 19°C on Thu morning). Mainly fresh winds. | Days 4-6 Weather SummaryHeavy rain (total 34mm), heaviest during Mon morning. Warm (max 25°C on Tue afternoon, min 19°C on Mon night). Mainly fresh winds. | ||||||||||||||||||||
Thursday 30 | Friday 31 | Saturday 1 | Sunday 2 | Monday 3 | Tuesday 4 | Wednesday 5 | |||||||||||||||
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) | SSE 9 | SSE 8 | SSE 8 | SSE 9 | SSE 8 | SSE 10 | S 9 | S 8 | S 7 | S 7 | S 7 | S 7 | S 8 | SSE 7 | S 8 | SSE 7 | S 7 | S 7 | S 7 | S 6 | SE 7 |
Wave Graph  | |||||||||||||||||||||
 kJ | 172 | 119 | 94 | 111 | 72 | 123 | 120 | 104 | 27 | 25 | 46 | 14 | 118 | 164 | 138 | 89 | 61 | 45 | 22 | 20 | 12 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross | glassy | cross-off | cross-off | cross-off | cross | cross | cross | cross | cross | cross | on | off | cross-on | on | cross-on | cross-off | cross | cross | cross-off |
High Tide | 9:12AM0.76m | 9:12PM0.87m | 9:42AM0.79m | 9:42PM0.86m | 10:13AM0.82m | 10:15PM0.84m | 10:47AM0.84m | 10:53PM0.80m | 11:24AM0.86m | 11:36PM0.76m | 12:08PM0.87m | 00:24AM0.72m | 12:59PM0.88m | 1:20AM0.68m | |||||||
Low Tide | 2:31PM0.11m | 3:11AM0.02m | 3:12PM0.10m | 3:43AM0.01m | 3:54PM0.10m | 4:17AM0.02m | 4:38PM0.11m | 4:55AM0.03m | 5:27PM0.13m | 5:36AM0.05m | 6:22PM0.15m | 6:22AM0.07m | 7:27PM0.17m | ||||||||
 |  |  |  | |  | | | | |  |  |  | |  | |  | | | |  | |
 | 5:41 | — | — | 5:41 | — | — | 5:43 | — | — | 5:43 | — | — | 5:45 | — | — | 5:46 | — | — | 5:47 | — | — |
 | — | 8:06 | — | — | 8:05 | — | — | 8:04 | — | — | 8:02 | — | — | 8:01 | — | — | 8:00 | — | — | 7:59 | — |
mm | 5 | — | — | — | — | — | — | — | — | — | — | 2 | 8 | 5 | 10 | 7 | 1 | 1 | — | — | 10 |
Temp °C | 19 | 20 | 20 | 20 | 23 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 23 | 21 | 20 | 25 | 25 | 24 | 25 | 25 |
Feels °C | 17 | 18 | 21 | 21 | 21 | 24 | 25 | 22 | 23 | 23 | 23 | 25 | 27 | 22 | 23 | 17 | 26 | 26 | 26 | 25 | 25 |
Swell 1 Height (m) Direction Period (s) | SSE 9 | SSE 8 | SSE 8 | SSE 9 | SSE 8 | SSE 10 | S 9 | SE 7 | S 7 | S 7 | SE 6 | S 7 | S 8 | SSE 7 | S 8 | SSE 7 | S 7 | S 7 | S 7 | SE 7 | SE 7 |
| kJ | 172 | 119 | 94 | 111 | 72 | 123 | 120 | 7 | 27 | 25 | 7 | 14 | 118 | 164 | 138 | 89 | 61 | 45 | 22 | 12 | 12 |
Swell 2 Height (m) Direction Period (s) | — | SE 10 | ENE 6 | E 6 | E 6 | E 6 | ESE 7 | SE 9 | SE 7 | SE 7 | ESE 8 | SE 7 | — | — | — | SE 8 | SE 8 | — | SE 7 | — | S 6 |
| kJ | — | 4 | 10 | 3 | 3 | 1 | 5 | 3 | 19 | 7 | 7 | 7 | — | — | — | 3 | 3 | — | 8 | — | 7 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | ENE 6 | E 6 | SE 9 | E 5 | SE 9 | SE 9 | ESE 9 | ESE 9 | — | — | — | — | — | — | — | — | SE 8 |
| kJ | — | — | — | — | 4 | 1 | 3 | 1 | 3 | 3 | 8 | 7 | — | — | — | — | — | — | — | — | 3 |
Wind waves Height (m) Direction Period (s) | ENE 5 | ENE 4 | — | — | SSW 3 | SSW 4 | — | S 8 | S 4 | S 3 | S 7 | S 4 | SW 4 | — | — | — | SW 3 | SW 4 | — | S 6 | SSW 3 |
| kJ | 34 | 25 | — | — | 8 | 17 | — | 104 | 13 | 4 | 46 | 7 | 7 | — | — | — | 4 | 14 | — | 20 | 4 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 32 | 32 | 0 | 0 | 9 | 0 | 38 | 668 | 10 | 1466 | 232 | 414 | 32 | 0 | 32 | 247 | 182 | 801 | 2560 | 994 | 676 |
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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