
Surf Forecasts:
Flies surf forecast from 23 Jul 2026:
- Best quality surf: Thursday 23 Jul, 11AM (local time) - 4ft (1.2m), 8s period, S swell with cross-offshore winds.
- Most powerful swell: Tuesday 28 Jul, 2PM (local time) - 7ft (2.1m), 6s period, SSE swell with 351 kJ wave energy.
- Next surfable swell (1★+): Thursday 23 Jul, 11AM (local time) - 4ft (1.2m), 8s 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 11AM. The primary swell is predicted to be 1.2m and 8s period. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Flies in the next 16 days are 2.1m 6s and forecast to arrive on Tuesday (Jul 28) at 2PM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.1m 7s period and expected on Saturday (Jul 25) at 11AM.
| Wave Type | Time (EDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 11AM (Thu 23rd Jul) | 4ft (1.2m) 8s |
| Best Surf | 11AM (Thu 23rd Jul) | 4ft (1.2m) 8s |
| Most Powerful | 2PM (Tue 28th Jul) | 7ft (2.1m) 6s |
Table - best surf conditions forecast for Flies over the next 16 days.
The Lowdown
Alright, let’s get into it. The swell window is open, but only just. For the next week and a half, it’s going to be a grind. The first real action we see is Thursday morning, the 23rd, at Flies. That’s a beach/jetty setup, and it’s exposed to the south-west. We’ve got a 4 ft south swell chugging in at 8 seconds, so it’s a short-period, local windswell. The combined energy is weak (182). Water temp is sitting at 69°, which is a bit colder than normal for this time of year. The wind is a light NNE breeze, 6 mph, blowing cross-offshore. That’s going to keep the surface clean. It’s surfable, but very ordinary. Not a standout, just a warm-up.
The rest of that week and into the next is a write-off. Friday the 24th drops to 2 ft, and the wind goes onshore. Saturday the 25th is a joke, with 0.7 ft and a moderate cross-onshore breeze. Sunday the 26th, Monday the 27th – all rubbish. There’s a decent pulse of size on Tuesday the 28th, with 6 ft on the morning and 5 ft in the afternoon, but the period is a paltry 6-7 seconds and the wind is cross-onshore from the east. The energy jumps to moderate (255-333), but the conditions are poor. That’s going to be a mushy, choppy mess. Not worth paddling out.
Wednesday the 29th morning has a weird one. A 25 mph north wind, cross-offshore, with 4 ft south swell. That’s a strong breeze, but it’s blowing offshore, so the surface will be clean. Still, that’s kite-surfing territory, not paddle surfing. The afternoon settles down with a gentle breeze, but the quality is still only “very ordinary.”
We then hit a dead zone. From Thursday the 30th afternoon right through to the end of the first week of August, the wind is either onshore, cross-onshore, or cross-shore. The swell is small and weak. There’s a tease on Sunday the 2nd of August, with 5 ft south swell and a slight WSW breeze, cross-offshore, making it clean. Energy is moderate (161). But it’s a 6-second period, so it’s a junky little windswell. Not a session changer.
Now, here’s the one I’m looking at. Monday the 3rd of August. The morning shows a 7 ft south-southeast swell, with a period of 10 seconds. That’s a proper groundswell. The combined energy is strong (772). Light SSE breeze, 6 mph, but it’s cross-onshore. That’s a minor letdown. The wave comment calls it “marginal surf forecast or questionable tide conditions.” This is the biggest swell of the window, and it has some grunt to it. At 7 ft, it’s borderline for intermediates, but for an expert, it’s got potential if the tide plays ball. The 10-second period will give it better shape than the junk we’ve been seeing. The crowd situation at Flies is “sometimes,” so you might have a few others thinking the same thing. This is the standout, but it’s a long way out, so treat it as promising but not locked in.
After that, it fades fast. Tuesday the 4th drops to 4 ft, and by Wednesday the 5th, we’re back to 2 ft with a fresh cross-onshore wind. The 16-day window peters out into weak, choppy nothing.
So, bottom line: there’s a big gap of poor surf from the 23rd right through to the 3rd of August. The only real highlight is that Monday the 3rd, with a 7 ft south-southeast groundswell. It’s not perfect, but it’s the best you’re going to get. For the rest, keep the board in the car and check the forecast again.
Rusty.
Short Range ForecastMostly dry. Warm (max 22°C on Thu afternoon, min 18°C on Thu morning). Wind will be generally light. | Days 4-6 Weather SummaryLight rain (total 9mm), mostly falling on Tue night. Warm (max 21°C on Sun afternoon, min 18°C on Sun morning). Winds increasing (light winds from the ENE on Sun night, fresh winds from the NE by Tue night). | ||||||||||||||||||||
Thursday 23 | Friday 24 | Saturday 25 | Sunday 26 | Monday 27 | Tuesday 28 | Wednesday 29 | |||||||||||||||
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 8 | S 8 | S 7 | S 7 | SE 8 | SE 7 | SSW 6 | S 6 | S 8 | SSW 6 | SSW 6 | S 6 | SE 8 | SE 8 | SE 7 | SSE 6 | SE 7 | SSE 7 | S 8 | S 8 | S 8 |
Wave Graph | |||||||||||||||||||||
182 | 172 | 112 | 35 | 24 | 79 | 3 | 1 | 1 | 13 | 3 | 1 | 45 | 45 | 44 | 255 | 220 | 164 | 186 | 191 | 142 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-on | glassy | cross-on | on | cross | cross-on | cross-on | cross-off | cross-on | on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross | cross-off | cross-off | off |
High Tide | 3:51PM0.95m | 4:14AM0.76m | 4:45PM0.97m | 5:08AM0.76m | 5:34PM0.99m | 5:58AM0.78m | 6:19PM1.02m | 6:44AM0.82m | 7:03PM1.05m | 7:27AM0.85m | 7:44PM1.08m | 8:09AM0.89m | 8:25PM1.09m | ||||||||
Low Tide | 8:30AM0.22m | 9:55PM0.30m | 9:20AM0.23m | 11:10PM0.28m | 10:13AM0.23m | 00:06AM0.26m | 11:06AM0.22m | 00:43AM0.22m | 11:58AM0.20m | 1:12AM0.17m | 12:45PM0.16m | 1:42AM0.13m | 1:29PM0.12m | 2:14AM0.09m | |||||||
5:37 | — | — | 5:37 | — | — | 5:39 | — | — | 5:39 | — | — | 5:41 | — | — | 5:41 | — | — | 5:41 | — | — | |
— | 8:14 | — | — | 8:13 | — | — | 8:12 | — | — | 8:12 | — | — | 8:10 | — | — | 8:09 | — | — | 8:08 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 9 | 4 | 1 | — |
Temp °C | 19 | 22 | 22 | 21 | 22 | 21 | 20 | 22 | 21 | 20 | 21 | 20 | 20 | 21 | 20 | 20 | 21 | 20 | 19 | 21 | 23 |
Feels °C | 16 | 20 | 19 | 20 | 20 | 18 | 16 | 19 | 19 | 17 | 19 | 19 | 19 | 19 | 20 | 21 | 21 | 19 | 14 | 21 | 25 |
Swell 1 Height (m) Direction Period (s) | S 8 | S 8 | S 7 | S 7 | SSW 6 | SE 7 | ESE 7 | ESE 7 | ESE 7 | ESE 8 | SE 8 | SE 8 | SE 8 | SE 8 | SE 7 | E 7 | SE 7 | SSE 7 | S 8 | S 8 | S 8 |
182 | 172 | 112 | 35 | 14 | 79 | 96 | 110 | 99 | 72 | 60 | 59 | 45 | 45 | 44 | 1 | 220 | 164 | 186 | 191 | 142 | |
Swell 2 Height (m) Direction Period (s) | — | ENE 4 | NE 4 | SE 6 | SE 8 | SSW 6 | SSW 6 | S 6 | S 8 | SSW 6 | SSW 6 | S 5 | ENE 5 | E 5 | E 8 | — | SSW 6 | ENE 6 | ENE 6 | E 6 | E 8 |
— | 2 | 1 | 21 | 24 | 7 | 3 | 1 | 1 | 13 | 3 | 1 | 5 | 2 | 10 | — | 49 | 52 | 10 | 2 | 1 | |
Swell 3 Height (m) Direction Period (s) | — | — | — | SE 8 | — | — | — | — | S 5 | — | — | S 6 | — | E 6 | S 9 | — | E 7 | E 9 | E 8 | E 8 | E 8 |
— | — | — | 11 | — | — | — | — | 1 | — | — | 1 | — | 1 | 1 | — | 33 | 2 | 1 | 1 | 1 | |
Wind waves Height (m) Direction Period (s) | NE 3 | — | — | — | SE 6 | — | ESE 7 | — | — | — | — | — | E 5 | SE 3 | S 4 | SSE 6 | E 6 | N 3 | — | — | — |
3 | — | — | — | 18 | — | 118 | — | — | — | — | — | 4 | 2 | 17 | 255 | 64 | 6 | — | — | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 56 | 0 | 195 | 638 | 75 | 771 | 685 | 1 | 76 | 1642 | 76 | 638 | 250 | 210 | 92 | 532 | 73 | 685 | 0 | 0 |
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.










