Surf Forecasts:
Fortress surf forecast from 17 Jun 2026:
- Best quality surf: Friday 19 Jun, 8PM (local time) - 4.5ft (1.3m), 8s period, SSW swell with offshore winds.
- Most powerful swell: Monday 22 Jun, 11AM (local time) - 8ft (2.5m), 8s period, S swell with 880 kJ wave energy.
- Next surfable swell (1★+): Friday 19 Jun, 8PM (local time) - 4.5ft (1.3m), 8s 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 Friday (Jun 19) at 8PM. The primary swell is predicted to be 1.3m and 8s period with a secondary swell of 0.1m and 13s. Another secondary swell of 0.1m and 6s is also forecast. The wind is predicted to be offshore as the swell arrives.
The most powerful waves expected at Fortress in the next 16 days are 2.5m 8s and forecast to arrive on Monday (Jun 22) at 11AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.9m 4s period and expected on Tuesday (Jun 23) at 2AM.
| Wave Type | Time (EDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 8PM (Fri 19th Jun) | 4.5ft (1.3m) 8s |
| Best Surf | 8PM (Fri 19th Jun) | 4.5ft (1.3m) 8s |
| Most Powerful | 11AM (Mon 22nd Jun) | 8ft (2.5m) 8s |
Table - best surf conditions forecast for Fortress over the next 16 days.
Updates in hr min s Forecast update imminent
Short Range ForecastSome drizzle, heaviest during Thu morning. Warm (max 25°C on Thu night, min 18°C on Tue night). Winds increasing (light winds from the SSW on Tue night, near gales from the S by Thu morning). | Days 5-7 Weather SummaryHeavy rain (total 39mm), heaviest during Mon morning. Warm (max 24°C on Fri night, min 16°C on Sat night). Mainly near gales. | ||||||||||||||||||||
Wednesday 17 | Thursday 18 | Friday 19 | Saturday 20 | Sunday 21 | Monday 22 | Tue 23 | |||||||||||||||
Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | |
Swell Height Map |  |  |  |  |  |  |  |  | |||||||||||||
Wave Height (m) Direction Period (s) | S 7 | S 7 | S 7 | S 7 | S 7 | S 7 | S 7 | S 8 | S 8 | S 8 | S 7 | S 8 | S 7 | S 7 | S 7 | S 6 | S 8 | S 9 | S 8 | S 7 | S 7 |
Wave Graph  | |||||||||||||||||||||
 kJ | 37 | 34 | 24 | 117 | 353 | 356 | 243 | 159 | 273 | 124 | 69 | 71 | 25 | 34 | 45 | 13 | 880 | 586 | 191 | 88 | 48 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-on | cross-on | cross-on | cross-on | cross | off | cross-off | cross-off | off | off | cross-off | off | off | cross-off | glassy | cross-off | cross-off | cross-off | cross-off | cross |
High Tide | 9:49PM1.09m | 10:25AM0.88m | 10:42PM1.04m | 11:20AM0.88m | 11:34PM0.97m | 12:14PM0.88m | 00:26AM0.88m | 1:10PM0.87m | 1:19AM0.79m | 2:06PM0.86m | 2:13AM0.71m | 3:04PM0.85m | 3:11AM0.64m | 4:02PM0.84m | |||||||
Low Tide | 4:03AM-0.12m | 3:51PM-0.06m | 4:53AM-0.09m | 4:48PM-0.01m | 5:43AM-0.05m | 5:48PM0.05m | 6:33AM0.00m | 6:55PM0.11m | 7:23AM0.05m | 8:08PM0.16m | 8:12AM0.10m | 9:19PM0.18m | 9:01AM0.13m | ||||||||
 |  |  |  |  | | | | |  | | | | | |  |  | | | | | |
 | — | 5:15 | — | — | 5:15 | — | — | 5:15 | — | — | 5:15 | — | — | 5:15 | — | — | 5:15 | — | — | 5:16 | — |
 | 8:21 | — | 8:22 | — | — | 8:22 | — | — | 8:22 | — | — | 8:22 | — | — | 8:22 | — | — | 8:22 | — | — | 8:22 |
mm | — | — | — | — | 1 | — | — | — | — | — | — | — | — | — | — | 3 | 36 | — | — | — | — |
Temp °C | 18 | 18 | 19 | 19 | 21 | 21 | 25 | 20 | 24 | 24 | 19 | 24 | 23 | 19 | 22 | 20 | 21 | 21 | 20 | 18 | 20 |
Feels °C | 12 | 17 | 17 | 16 | 14 | 15 | 21 | 15 | 18 | 20 | 12 | 19 | 18 | 15 | 17 | 15 | 15 | 13 | 13 | 17 | 17 |
Swell 1 Height (m) Direction Period (s) | S 7 | S 7 | S 7 | SE 15 | SE 14 | SE 14 | S 7 | S 8 | SE 13 | S 8 | S 7 | S 8 | S 7 | S 7 | SE 12 | S 4 | — | S 9 | S 8 | S 7 | S 7 |
| kJ | 37 | 34 | 24 | 9 | 8 | 8 | 243 | 159 | 7 | 124 | 69 | 71 | 25 | 34 | 6 | 10 | — | 586 | 191 | 88 | 48 |
Swell 2 Height (m) Direction Period (s) | E 8 | SE 16 | SE 16 | — | E 8 | E 8 | SE 14 | SE 13 | E 6 | SE 13 | SE 13 | SE 13 | S 5 | SE 12 | — | S 6 | — | — | — | — | — |
| kJ | 1 | 10 | 10 | — | 1 | 1 | 8 | 7 | 1 | 7 | 7 | 6 | 15 | 6 | — | 13 | — | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | E 6 | E 6 | E 6 | — | — | — | SE 14 | E 7 | — | — | — | — | SE 12 | — | — | SE 8 | — | — | — | — | — |
| kJ | 1 | 1 | 1 | — | — | — | 8 | 1 | — | — | — | — | 6 | — | — | 3 | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | SSW 4 | — | — | S 7 | S 7 | S 7 | — | WNW 3 | S 8 | NW 3 | W 3 | WSW 4 | NW 3 | — | S 7 | — | S 8 | WNW 4 | NW 4 | WNW 3 | WSW 3 |
| kJ | 15 | — | — | 117 | 353 | 356 | — | 2 | 273 | 2 | 8 | 8 | 2 | — | 45 | — | 880 | 15 | 21 | 4 | 4 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 10 | 668 | 2580 | 1100 | 1511 | 414 | 55 | 58 | 58 | 55 | 55 | 55 | 55 | 2 | 668 | 676 | 295 | 218 | 2 | 0 | 194 |
Best forecast wave conditions in Long Island New York | |||||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||||
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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.
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