Surf Forecasts:
Flies surf forecast from 10 Aug 2026:
- Best quality surf: Monday 17 Aug, 5AM (local time) - 6ft (1.9m), 7s period, SSW swell with offshore winds.
- Most powerful swell: Monday 17 Aug, 8AM (local time) - 7ft (2.1m), 7s period, SSW swell with 408 kJ wave energy.
- Next surfable swell (1★+): Friday 14 Aug, 2AM (local time) - 3.5ft (1.0m), 6s period with SSW swell.
Best Forecast Surf Conditions for Flies this week:
The surf forecast for Flies over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Friday (Aug 14) at 2AM. The primary swell is predicted to be 1.0m and 6s period. The wind is predicted to be offshore as the swell arrives.
The most powerful waves expected at Flies in the next 16 days are 2.1m 7s and forecast to arrive on Monday (Aug 17) at 8AM. Winds are predicted to be offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.4m 3s period and expected on Wednesday (Aug 12) at 8AM.
| Wave Type | Time (EDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 2AM (Fri 14th Aug) | 3.5ft (1.0m) 6s |
| Best Surf | 5AM (Mon 17th Aug) | 6ft (1.9m) 7s |
| Most Powerful | 8AM (Mon 17th Aug) | 7ft (2.1m) 7s |
Table - best surf conditions forecast for Flies over the next 16 days.
The Lowdown
Hey, Rusty here. Let’s be honest – the next fortnight at Flies is a bit of a dud for the most part. The water’s warm, about 75°, which is a touch above normal, but that’s the only good news.
From Monday the 10th right through to Saturday the 16th, it’s all tiny waves. We’re talking knee-high stuff, 2 to 3 feet from the south, with weak energy numbers mostly in the teens to low 60s. The wind is all over the place – cross, cross-off, cross-on – but it doesn’t matter because there’s no swell. It’s just flat and poor.
Then on Monday the 17th, we finally get a pulse. The morning brings 6 feet from the SSW, with offshore wind from the NNW. It’ll be clean. The energy jumps to 340. The period is short, only 7 seconds, so it’ll be a bit lumpy and won’t have much push, but it’s the best we’ve got. The afternoon is similar – 6 feet from the SSW, fresh offshore from the NW, energy hitting 603. It’s clean but that short period means it might be a bit bumpy and won’t hold a good line. That’s your one window.
After that, Tuesday the 18th drops to 3 feet with cross-off wind, and then we’re back to tiny stuff. From Wednesday the 19th, we get longer period swell – 12 seconds – but it’s only 2 feet from the SE, with cross or cross-on winds. The energy is in the 128 to 148 range, but it’s just too small. The rest of the week and into the next is all 2 to 4 feet from the south or southeast, with onshore chop and lumpy conditions. Nothing worth rushing for.
So, your best bet is Monday the 17th. The morning will be the cleaner session. If you can’t make that, you’re looking at a long wait.
Rusty.
Short Range ForecastLight rain (total 6mm), mostly falling on Tue night. Warm (max 27°C on Mon afternoon, min 23°C on Tue morning). Wind will be generally light. | Days 4-6 Weather SummaryLight rain (total 7mm), mostly falling on Thu morning. Warm (max 27°C on Fri afternoon, min 18°C on Fri night). Winds decreasing (fresh winds from the NNW on Fri night, light winds from the NW by Sat afternoon). | ||||||||||||||||||||
Monday 10 | Tuesday 11 | Wednesday 12 | Thursday 13 | Friday 14 | Saturday 15 | Sunday 16 | |||||||||||||||
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) | S 5 | SSW 5 | S 6 | S 6 | S 6 | S 6 | S 5 | S 6 | SSW 4 | SSW 5 | SSW 5 | SSW 6 | S 6 | S 6 | S 6 | S 6 | S 7 | S 7 | S 7 | S 7 | SSW 6 |
Wave Graph  | |||||||||||||||||||||
 kJ | 14 | 8 | 32 | 31 | 22 | 22 | 15 | 17 | 8 | 26 | 49 | 77 | 31 | 24 | 19 | 19 | 39 | 36 | 35 | 34 | 122 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | glassy | cross | cross-off | cross-off | cross | cross-off | cross-off | cross-on | cross-off | cross | cross-on | off | off | off | cross-off | cross-off | cross-off | cross-off | cross | cross | cross |
High Tide | 6:21PM1.20m | 6:51AM0.99m | 7:14PM1.23m | 7:43AM1.05m | 8:05PM1.24m | 8:32AM1.10m | 8:53PM1.22m | 9:20AM1.12m | 9:40PM1.18m | 10:07AM1.12m | 10:26PM1.12m | 10:53AM1.11m | 11:12PM1.04m | ||||||||
Low Tide | 11:22AM0.07m | 00:34AM0.06m | 12:27PM0.04m | 1:27AM0.01m | 1:25PM0.01m | 2:12AM-0.02m | 2:16PM-0.01m | 2:53AM-0.03m | 3:03PM0.00m | 3:31AM-0.02m | 3:47PM0.03m | 4:08AM0.02m | 4:30PM0.08m | 4:45AM0.06m | |||||||
 | |  | | |  | |  | |  |  |  | | |  | | | | |  | | |
 | 5:54 | — | — | 5:54 | — | — | 5:56 | — | — | 5:56 | — | — | 5:58 | — | — | 5:58 | — | — | 6:00 | — | — |
 | — | 7:54 | — | — | 7:53 | — | — | 7:52 | — | — | 7:51 | — | — | 7:50 | — | — | 7:47 | — | — | 7:46 | — |
mm | — | — | — | — | — | 6 | — | — | — | 2 | 2 | 3 | — | — | — | — | — | — | — | — | 3 |
Temp °C | 25 | 27 | 27 | 24 | 27 | 25 | 24 | 26 | 25 | 26 | 25 | 24 | 24 | 27 | 23 | 20 | 24 | 23 | 23 | 24 | 23 |
Feels °C | 25 | 27 | 27 | 26 | 28 | 27 | 22 | 25 | 23 | 26 | 24 | 24 | 19 | 22 | 16 | 17 | 21 | 20 | 21 | 20 | 19 |
Swell 1 Height (m) Direction Period (s) | S 5 | SSE 6 | S 6 | S 6 | S 6 | S 6 | S 5 | S 6 | ESE 8 | SE 8 | SE 8 | SSW 6 | S 6 | S 6 | S 6 | S 6 | S 7 | S 7 | S 7 | SE 9 | SSE 8 |
| kJ | 14 | 4 | 32 | 31 | 22 | 22 | 15 | 17 | 7 | 3 | 3 | 77 | 31 | 24 | 19 | 19 | 39 | 36 | 35 | 3 | 7 |
Swell 2 Height (m) Direction Period (s) | SE 10 | SE 10 | SE 10 | SE 9 | ESE 9 | SE 9 | SE 8 | ENE 4 | S 7 | SE 11 | SE 10 | ESE 9 | SE 10 | SE 10 | ESE 9 | SE 9 | ESE 9 | SE 9 | SE 9 | SE 9 | — |
| kJ | 4 | 4 | 4 | 3 | 8 | 3 | 3 | 3 | 4 | 4 | 4 | 8 | 4 | 4 | 8 | 3 | 8 | 3 | 3 | 12 | — |
Swell 3 Height (m) Direction Period (s) | E 8 | E 8 | E 8 | — | E 8 | E 12 | SE 11 | SE 8 | — | SE 14 | SE 13 | SE 13 | SE 13 | SE 13 | E 12 | SE 12 | E 12 | — | SE 9 | — | — |
| kJ | 1 | 1 | 1 | — | 1 | 3 | 5 | 3 | — | 8 | 7 | 7 | 7 | 7 | 3 | 6 | 3 | — | 12 | — | — |
Wind waves Height (m) Direction Period (s) | — | SSW 5 | — | — | — | — | NE 3 | — | SSW 4 | SSW 5 | SSW 5 | NW 2 | NW 3 | WNW 2 | N 3 | N 2 | — | SW 3 | — | S 7 | SSW 6 |
| kJ | — | 8 | — | — | — | — | 3 | — | 8 | 26 | 49 | 1 | 2 | 1 | 3 | 1 | — | 3 | — | 34 | 122 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 849 | 2551 | 244 | 32 | 171 | 536 | 849 | 1642 | 122 | 715 | 2548 | 0 | 685 | 685 | 32 | 723 | 71 | 4 | 871 | 1173 | 117 |
Best forecast wave conditions in Long Island New York | |||||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||||
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Information about the Flies Surf forecast
The above surf forecast table for Flies provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Flies can be found by selecting the local surf guide option on the grey menu. Our Flies 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 (Flies) 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 Flies 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.
Flies is 32 km (20 miles) from Mastic. If you plan a vacation in Long Island New York, look for hotels and other accommodation in Mastic. Mastic has rooms for a wide range of budgets as well as car hire and transport links.
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