
Surf Forecasts:
Fortress surf forecast from 20 Jul 2026:
- Best quality surf: Sunday 19 Jul, 11PM (local time) - 2.5ft (0.8m), 7s period, S swell with offshore winds.
- Most powerful swell: Wednesday 22 Jul, 8AM (local time) - 10ft (3.0m), 9s period, SSW swell with 1,230 kJ wave energy.
- Next surfable swell (1★+): Sunday 19 Jul, 11PM (local time) - 2.5ft (0.8m), 7s 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 Sunday (Jul 19) at 11PM. The primary swell is predicted to be 0.8m and 7s period with a secondary swell of 0.1m and 12s. The wind is predicted to be offshore as the swell arrives.
The most powerful waves expected at Fortress in the next 16 days are 3.0m 9s and forecast to arrive on Wednesday (Jul 22) at 8AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.8m 4s period and expected on Sunday (Jul 26) at 2AM.
| Wave Type | Time (EDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 11PM (Sun 19th Jul) | 2.5ft (0.8m) 7s |
| Best Surf | 11PM (Sun 19th Jul) | 2.5ft (0.8m) 7s |
| Most Powerful | 8AM (Wed 22nd Jul) | 10ft (3.0m) 9s |
Table - best surf conditions forecast for Fortress over the next 16 days.
The Lowdown
Alright, Rusty here, and I’ve got a look at the surf for the next couple of weeks. The swell is generally small and the wind is a problem, so we’re in for a bit of a lean spell.
First up, the only real spot on the radar is Fortress (reef). It’s a beginner-friendly reef break that’s fairly consistent and exposed to the swell. The water’s sitting at about 68°F, which is a bit colder than normal for this time of year, so you’ll want a decent spring suit.
We kick off on Sunday the 19th with a weak 2ft south swell (period around 7 seconds) and a moderate offshore wind from the west. The combined energy is weak (52) – it’s surfable, but the conditions are very ordinary. Not exactly a standout.
Monday the 20th is the best of the early run. The morning goes glassy, dead calm, with a 2ft south swell. The combined energy is still low (61), but for a small wave, it’ll be clean. Monday afternoon turns choppy, so that morning window is the one to chase.
From Tuesday the 21st through to the end of the month, it’s a lot of poor surf conditions. The wind is mostly cross-onshore or straight onshore, with a lot of chop and lumpy water. The swell stays small, usually under 3ft, and the period is short. There’s a brief spike on Wednesday the 22nd when the swell hits 6ft from the south (period 9 seconds) with a moderate cross-offshore wind. The combined energy jumps to 561 – that’s moderate wave energy. The conditions are clean, but the forecast says it’s marginal for quality. For a confident surfer on a reef, it could be a fun session, but it’s not a clear standout.
After that, we drop back into a long stretch of poor conditions. The wind stays messy, and the swell is weak and short-period. The only real break in the pattern comes on Sunday the 26th with a gentle offshore wind and a 2ft swell, and again on Monday the 27th with glassy conditions in the morning, but the swell is still tiny. Combined energy is below 100.
Into the first week of August, it’s more of the same: small, weak swell, short periods, and cross-onshore winds. There’s a gap of several days here with no real recommendations. Nothing stands out as a true "go" session.
Overall, the best bet is Monday morning the 20th for a clean, glassy, small wave session on the reef. Everything else is a fight against the wind for ankle-to-knee-high slop. Keep an eye on the Wednesday the 22nd window if you’re a stronger paddler, but it’s not a guarantee.
Rusty.
Short Range ForecastHeavy rain (total 24mm), heaviest during Tue night. Warm (max 25°C on Sun afternoon, min 19°C on Sun night). Winds increasing (calm on Mon morning, fresh winds from the SW by Tue night). | Days 5-7 Weather SummaryMostly dry. Warm (max 25°C on Wed afternoon, min 17°C on Wed night). Winds decreasing (fresh winds from the W on Wed afternoon, calm by Fri night). | |||||||||||||||||||
Sun 19 | Monday 20 | Tuesday 21 | Wednesday 22 | Thursday 23 | Friday 24 | Saturday 25 | ||||||||||||||
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) | S 7 | S 8 | S 8 | S 7 | S 7 | SSE 5 | SSE 6 | S 8 | S 9 | S 9 | S 10 | SSE 8 | S 8 | SE 7 | S 8 | S 8 | SE 8 | SE 7 | SE 7 | SE 7 |
Wave Graph | ||||||||||||||||||||
36 | 74 | 54 | 37 | 61 | 39 | 115 | 631 | 561 | 588 | 460 | 252 | 138 | 93 | 63 | 74 | 82 | 77 | 71 | 49 | |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | cross-off | glassy | cross-on | cross-on | cross-on | cross-on | cross-off | cross-off | cross-off | cross-off | cross-on | on | cross | cross-on | cross-on | glassy | on | cross-on | cross-off |
High Tide | 00:35AM0.76m | 1:24PM0.88m | 1:18AM0.68m | 2:18PM0.84m | 2:02AM0.61m | 3:18PM0.80m | 2:56AM0.57m | 4:23PM0.79m | 4:16AM0.55m | 5:25PM0.79m | 5:36AM0.56m | 6:18PM0.81m | ||||||||
Low Tide | 6:20PM0.11m | 6:23AM0.07m | 7:21PM0.17m | 7:03AM0.12m | 8:32PM0.22m | 7:48AM0.17m | 9:44PM0.24m | 8:40AM0.20m | 10:46PM0.24m | 9:41AM0.21m | 11:38PM0.22m | 10:42AM0.21m | 00:23AM0.19m | |||||||
— | — | 5:31 | — | — | 5:33 | — | — | 5:33 | — | — | 5:33 | — | — | 5:35 | — | — | 5:35 | — | — | |
8:15 | — | — | 8:15 | — | — | 8:14 | — | — | 8:13 | — | — | 8:13 | — | — | 8:12 | — | — | 8:10 | — | |
mm | — | — | — | — | — | — | 1 | 23 | — | — | — | — | — | — | — | — | — | — | — | 1 |
Temp °C | 25 | 25 | 21 | 22 | 22 | 22 | 23 | 23 | 23 | 25 | 23 | 18 | 19 | 19 | 18 | 21 | 20 | 20 | 21 | 21 |
Feels °C | 20 | 21 | 21 | 20 | 20 | 20 | 24 | 22 | 21 | 21 | 19 | 15 | 16 | 17 | 16 | 19 | 17 | 20 | 18 | 19 |
Swell 1 Height (m) Direction Period (s) | S 7 | S 8 | S 8 | S 7 | SE 8 | SSW 7 | SE 8 | — | S 9 | S 9 | S 10 | SSE 8 | S 8 | SE 7 | S 8 | S 8 | SE 8 | SE 7 | SE 7 | SE 7 |
36 | 74 | 54 | 37 | 3 | 17 | 2 | — | 561 | 588 | 460 | 252 | 138 | 93 | 63 | 74 | 82 | 77 | 71 | 49 | |
Swell 2 Height (m) Direction Period (s) | SW 6 | SE 12 | SE 12 | SE 12 | SE 12 | — | SE 12 | — | — | — | — | SE 8 | — | S 7 | SE 6 | SE 8 | S 7 | SSW 7 | SSW 6 | SSW 4 |
10 | 6 | 6 | 6 | 6 | — | 5 | — | — | — | — | 71 | — | 53 | 32 | 55 | 26 | 15 | 15 | 10 | |
Swell 3 Height (m) Direction Period (s) | SE 13 | SE 12 | — | SE 8 | — | — | — | — | — | — | — | — | — | — | — | — | NE 4 | NE 4 | — | SW 6 |
6 | 6 | — | 3 | — | — | — | — | — | — | — | — | — | — | — | — | 4 | 1 | — | 1 | |
Wind waves Height (m) Direction Period (s) | WNW 3 | — | NNE 2 | — | S 7 | SSE 5 | SSE 6 | S 8 | — | — | N 3 | NE 3 | SE 8 | — | ENE 5 | ENE 5 | — | — | — | SW 4 |
3 | — | 1 | — | 61 | 39 | 115 | 631 | — | — | 8 | 2 | 67 | — | 44 | 42 | — | — | — | 21 | |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 0 | 0 | 0 | 1787 | 227 | 1155 | 1155 | 38 | 163 | 52 | 25 | 32 | 815 | 2 | 47 | 9 | 0 | 4 | 575 | 20 |
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.










