Surf Forecasts:
Flies surf forecast from 20 Jul 2026:
- Best quality surf: Thursday 23 Jul, 2PM (local time) - 4.5ft (1.4m), 9s period, S swell with offshore winds.
- Most powerful swell: Wednesday 22 Jul, 11PM (local time) - 8ft (2.5m), 10s period, S swell with 1,223 kJ wave energy.
- Next surfable swell (1★+): Thursday 23 Jul, 2PM (local time) - 4.5ft (1.4m), 9s period with S 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 Thursday (Jul 23) at 2PM. The primary swell is predicted to be 1.4m and 9s period with a secondary swell of 0.8m and 8s. The wind is predicted to be offshore as the swell arrives.
The most powerful waves expected at Flies in the next 16 days are 2.5m 10s and forecast to arrive on Wednesday (Jul 22) at 11PM. 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 7s period and expected on Friday (Jul 24) at 8PM.
| Wave Type | Time (EDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 2PM (Thu 23rd Jul) | 4.5ft (1.4m) 9s |
| Best Surf | 2PM (Thu 23rd Jul) | 4.5ft (1.4m) 9s |
| Most Powerful | 11PM (Wed 22nd Jul) | 8ft (2.5m) 10s |
Table - best surf conditions forecast for Flies over the next 16 days.
The Lowdown
G’day, I’m Rusty, and I’ve been studying the charts for Flies (beach/jetty). Mate, the next two weeks are a tough go. The first few days are flat or junk, and then we hit a long dry spell. Only one real window worth talking about.
Monday morning, July 20th, there’s a tiny 0.8m south swell, period 7 seconds, combined energy just 76 (weak). It’s glassy with a 5 km/h NNE breeze, but the waves are ordinary. By the afternoon, wind turns cross-onshore from the south at 15 km/h, and it’s done. Tuesday, July 21st, is trash: 30 km/h onshore wind, 1.1m of 5-second slop, and storm risk. Tuesday arvo brings 1.6m and lumpy cross-onshore chop. Wednesday, July 22nd, sees the swell hit 2.0m–2.4m, 8 seconds, with combined energy 562–800 (moderate), but cross-shore winds at 25 km/h leave it choppy. This setup looks more interesting for kite surfing than paddle surfing.
Thursday, July 23rd, is your best chance. Morning has a 1.7m south swell (9-second period, 504 energy) and a clean cross-offshore breeze from the NNW at 20 km/h. The afternoon is the standout: glassy, with a WNW wind at only 5 km/h, and a 1.5m south swell with 8-second period and 376 energy. Water temp is 22°, average for the season. It’s a clean, fun session, though crowds are sometimes a problem.
From Friday, July 24th, through to August 4th, it’s a long run of poor surf. Swell drops to 0.8m or less, periods short, and winds cross-onshore or onshore. A few days around the 28th–30th show 1.0m–1.5m south swell with 9-second periods, but the wind always messes it up. Combined energy tops out at 386 on the 29th, but it’s not clean. No real reason to get wet.
If you’re keen, target Thursday, July 23rd. The rest of the window is quiet – normal for this spot. Forecasts can shift, so stay tuned.
Rusty.
Short Range ForecastHeavy rain (total 40mm), heaviest during Tue night. Warm (max 26°C on Wed afternoon, min 18°C on Wed night). Winds increasing (calm on Mon morning, strong winds from the SW by Tue night). | Days 4-6 Weather SummaryMostly dry. Warm (max 24°C on Thu afternoon, min 17°C on Thu morning). Mainly fresh winds. | ||||||||||||||||||||
Monday 20 | Tuesday 21 | Wednesday 22 | Thursday 23 | Friday 24 | Saturday 25 | Sunday 26 | |||||||||||||||
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 7 | S 7 | S 7 | S 5 | SSE 6 | S 8 | S 8 | S 8 | S 10 | S 9 | S 8 | S 8 | S 8 | SE 7 | SE 8 | E 5 | SSW 6 | SE 7 | SE 8 | SE 8 | SE 8 |
Wave Graph  | |||||||||||||||||||||
 kJ | 70 | 48 | 46 | 59 | 171 | 458 | 562 | 800 | 1201 | 450 | 309 | 127 | 72 | 96 | 116 | 18 | 3 | 77 | 93 | 73 | 69 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | glassy | cross-on | cross-on | on | cross-on | cross | cross | cross | cross-off | cross-off | glassy | on | cross-on | cross-on | cross | cross | cross-on | cross-off | cross | cross-on | cross |
High Tide | 1:06PM1.00m | 1:23AM0.90m | 2:00PM0.97m | 2:18AM0.83m | 2:55PM0.95m | 3:16AM0.78m | 3:51PM0.95m | 4:14AM0.76m | 4:45PM0.97m | 5:08AM0.76m | 5:34PM0.99m | 5:58AM0.78m | 6:19PM1.02m | ||||||||
Low Tide | 6:45PM0.20m | 6:56AM0.14m | 7:43PM0.25m | 7:42AM0.19m | 8:45PM0.29m | 8:30AM0.22m | 9:55PM0.30m | 9:20AM0.23m | 11:10PM0.28m | 10:13AM0.23m | 00:06AM0.26m | 11:06AM0.22m | 00:43AM0.22m | ||||||||
 | |  |  |  |  |  | | | | | | | | | | | | | |  | |
 | 5:33 | — | — | 5:35 | — | — | 5:35 | — | — | 5:37 | — | — | 5:37 | — | — | 5:39 | — | — | 5:39 | — | — |
 | — | 8:16 | — | — | 8:15 | — | — | 8:15 | — | — | 8:14 | — | — | 8:13 | — | — | 8:12 | — | — | 8:12 | — |
mm | — | — | — | — | 2 | 36 | — | — | 2 | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 21 | 23 | 22 | 22 | 24 | 24 | 24 | 26 | 26 | 20 | 24 | 24 | 21 | 22 | 20 | 20 | 22 | 20 | 20 | 22 | 22 |
Feels °C | 21 | 21 | 20 | 20 | 23 | 23 | 23 | 25 | 25 | 16 | 22 | 22 | 19 | 20 | 17 | 16 | 18 | 18 | 18 | 20 | 20 |
Swell 1 Height (m) Direction Period (s) | S 7 | S 7 | SE 8 | SE 12 | SE 12 | — | — | — | S 10 | S 9 | S 8 | S 8 | SE 7 | SE 7 | SE 8 | ESE 7 | SSW 6 | SE 7 | SE 8 | SE 8 | SE 8 |
| kJ | 70 | 48 | 3 | 6 | 6 | — | — | — | 1201 | 450 | 309 | 127 | 69 | 96 | 116 | 96 | 3 | 77 | 93 | 73 | 69 |
Swell 2 Height (m) Direction Period (s) | SE 12 | SE 12 | SE 12 | SE 12 | SE 12 | — | — | — | — | SE 7 | SE 7 | SE 7 | S 8 | S 7 | SSW 7 | SSW 6 | — | SE 9 | — | S 7 | S 6 |
| kJ | 6 | 6 | 6 | 6 | 5 | — | — | — | — | 54 | 67 | 75 | 72 | 52 | 15 | 7 | — | 19 | — | 14 | 20 |
Swell 3 Height (m) Direction Period (s) | — | SE 8 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | SW 5 | S 6 | S 6 | — |
| kJ | — | 3 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | 1 | 1 | — |
Wind waves Height (m) Direction Period (s) | — | — | S 7 | S 5 | SSE 6 | S 8 | S 8 | S 8 | — | N 3 | — | — | — | — | — | E 5 | ESE 7 | — | — | — | SW 2 |
| kJ | — | — | 46 | 59 | 171 | 458 | 562 | 800 | — | 1 | — | — | — | — | — | 18 | 93 | — | — | — | 1 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 1756 | 270 | 1164 | 1164 | 1164 | 135 | 80 | 18 | 2 | 0 | 56 | 76 | 779 | 72 | 97 | 638 | 18 | 4 | 536 | 140 |
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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