Surf Forecasts:
Flies surf forecast from 27 Jul 2026:
- Best quality surf: Thursday 30 Jul, 11AM (local time) - 5ft (1.6m), 8s period, S swell with cross-offshore winds.
- Most powerful swell: Wednesday 29 Jul, 5AM (local time) - 8ft (2.5m), 7s period, SSE swell with 758 kJ wave energy.
- Next surfable swell (1★+): Thursday 30 Jul, 11AM (local time) - 5ft (1.6m), 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 30) at 11AM. The primary swell is predicted to be 1.6m 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 2.5m 7s and forecast to arrive on Wednesday (Jul 29) at 5AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.8m 7s period and expected on Monday (Jul 27) at 11AM.
| Wave Type | Time (EDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 11AM (Thu 30th Jul) | 5ft (1.6m) 8s |
| Best Surf | 11AM (Thu 30th Jul) | 5ft (1.6m) 8s |
| Most Powerful | 5AM (Wed 29th Jul) | 8ft (2.5m) 7s |
Table - best surf conditions forecast for Flies over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let’s have a look at what’s coming up for Flies. To be honest, the first week is a bit of a write-off, so you might want to save your energy for the following week when things finally start to line up.
The opening stretch from Monday the 27th of July right through to the afternoon of Saturday the 1st of August is a tough one. The wind is mostly cross-onshore and the swell is messy, with wave energy mostly weak (under 100) or just barely moderate (around 100-139). The sou'west swell is small, around 2ft to 4ft, and the period is short, so the waves are going to be choppy and lumpy. There’s a brief moment on Wednesday morning the 29th where the swell energy jumps up a bit (327) but the cross-onshore wind is still ruining the shape. Honestly, it’s not worth paddling out for.
The good news is that things start to look up as we head into the following week. The standout window is Monday the 3rd of August through Tuesday the 4th of August. The southerly swell is 5ft Monday morning, dropping to 4ft Tuesday morning, and the combined energy is solid – 376 on Monday morning, then 349 Monday afternoon, and 204 Tuesday morning. That’s proper moderate wave energy, and it’s coming from the south. The real kicker is the wind. Monday morning we get a light offshore from the west-northwest, and Monday afternoon turns clean with a light cross-offshore breeze. Tuesday morning looks even better with a light offshore from the northwest. The water temperature is a bit colder than normal for this time of year at 70°, but that’s nothing to worry about.
The period is around 8 seconds, so it’s a short-period swell, but with the offshore wind it should still shape up nicely, especially for intermediate surfers. It’s a fairly consistent beach/jetty setup, and the optimum swell direction is southwest, so the south swell is working well. Just keep in mind that crowds are possible here – it can get busy when it’s clean.
The gap between that first decent session and the next one is a few days. The next little window pops up on Friday morning the 7th of August when the wind goes glassy, but the swell is tiny at 3ft with a weak 6-second period, so it’s not really a standout. The rest of the second week is mostly poor with onshore winds and weak energy, so don’t get your hopes up for anything after that Tuesday.
So, lock in that Monday the 3rd and Tuesday the 4th of August. The morning sessions are the pick, with that offshore wind and clean conditions. It’s the only real proper surf on offer in the whole 16 days.
Rusty.
Short Range ForecastHeavy rain (total 22mm), heaviest during Tue night. Warm (max 23°C on Mon afternoon, min 20°C on Mon morning). Winds decreasing (fresh winds from the S on Tue afternoon, light winds from the ESE by Wed night). | Days 4-6 Weather SummaryLight rain (total 9mm), mostly falling on Thu afternoon. Warm (max 23°C on Fri night, min 19°C on Thu night). Wind will be generally light. | ||||||||||||||||||||
Monday 27 | Tuesday 28 | Wednesday 29 | Thursday 30 | Friday 31 | Saturday 1 | Sunday 2 | |||||||||||||||
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) | ESE 7 | SE 8 | SE 8 | S 5 | S 6 | SSE 6 | SE 7 | SE 7 | SSE 7 | S 8 | S 8 | S 7 | SSE 9 | SSE 8 | SSE 8 | S 9 | S 8 | S 8 | S 7 | S 7 | SSE 7 |
Wave Graph  | |||||||||||||||||||||
 kJ | 0 | 36 | 31 | 53 | 100 | 361 | 169 | 174 | 259 | 302 | 201 | 88 | 166 | 119 | 77 | 169 | 111 | 55 | 53 | 25 | 77 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | on | cross | cross-off | cross | cross-off | cross-off | cross-on | cross-off | cross | cross-on | cross | cross-on | cross-on | cross-on |
High Tide | 7:03PM1.05m | 7:27AM0.85m | 7:44PM1.08m | 8:09AM0.89m | 8:25PM1.09m | 8:51AM0.92m | 9:06PM1.09m | 9:31AM0.95m | 9:46PM1.08m | 10:12AM0.98m | 10:26PM1.05m | 10:53AM1.01m | 11:07PM1.01m | ||||||||
Low Tide | 11:58AM0.20m | 1:12AM0.17m | 12:45PM0.16m | 1:42AM0.13m | 1:29PM0.12m | 2:14AM0.09m | 2:11PM0.09m | 2:48AM0.06m | 2:53PM0.07m | 3:24AM0.03m | 3:35PM0.06m | 4:01AM0.02m | 4:19PM0.07m | 4:42AM0.02m | |||||||
 | |  |  |  |  |  |  |  | | |  |  | |  | | | | | | | |
 | 5:41 | — | — | 5:41 | — | — | 5:41 | — | — | 5:43 | — | — | 5:43 | — | — | 5:45 | — | — | 5:46 | — | — |
 | — | 8:10 | — | — | 8:09 | — | — | 8:08 | — | — | 8:07 | — | — | 8:07 | — | — | 8:06 | — | — | 8:04 | — |
mm | — | — | 1 | 1 | 1 | 12 | 7 | — | — | 3 | 3 | 3 | — | — | — | — | — | — | — | — | — |
Temp °C | 21 | 23 | 23 | 23 | 23 | 23 | 21 | 22 | 22 | 20 | 21 | 20 | 20 | 22 | 23 | 21 | 22 | 23 | 22 | 23 | 23 |
Feels °C | 20 | 22 | 22 | 21 | 21 | 21 | 19 | 23 | 23 | 21 | 21 | 18 | 19 | 23 | 26 | 24 | 23 | 23 | 23 | 23 | 25 |
Swell 1 Height (m) Direction Period (s) | ESE 7 | SE 8 | SE 8 | SE 8 | SE 8 | E 9 | SE 7 | SE 7 | SSE 7 | S 8 | S 8 | S 7 | SSE 9 | SSE 8 | SSE 8 | S 9 | S 8 | S 8 | SE 7 | S 7 | SE 9 |
| kJ | 61 | 36 | 31 | 46 | 18 | 2 | 169 | 174 | 259 | 302 | 201 | 88 | 166 | 119 | 77 | 169 | 111 | 55 | 19 | 25 | 3 |
Swell 2 Height (m) Direction Period (s) | E 6 | E 6 | E 6 | E 6 | E 6 | E 9 | E 8 | — | SSE 9 | ENE 6 | E 6 | SSE 10 | — | ESE 10 | ENE 5 | ENE 5 | E 5 | S 10 | SE 10 | SE 7 | SE 9 |
| kJ | 18 | 13 | 7 | 7 | 3 | 6 | 1 | — | 8 | 3 | 3 | 39 | — | 9 | 8 | 5 | 2 | 17 | 4 | 13 | 3 |
Swell 3 Height (m) Direction Period (s) | — | — | S 7 | — | E 9 | — | E 6 | — | SSE 9 | — | SE 10 | — | — | — | SSE 9 | — | SE 9 | SE 9 | E 5 | SE 9 | E 7 |
| kJ | — | — | 4 | — | 2 | — | 3 | — | 35 | — | 4 | — | — | — | 49 | — | 3 | 3 | 1 | 3 | 1 |
Wind waves Height (m) Direction Period (s) | — | SSW 2 | SSW 4 | S 5 | S 6 | SSE 6 | SSW 7 | SSW 7 | SSW 7 | — | — | NE 4 | ENE 5 | ENE 5 | — | — | — | S 3 | S 7 | S 5 | SSE 7 |
| kJ | — | 1 | 16 | 53 | 100 | 361 | 158 | 91 | 127 | — | — | 12 | 39 | 20 | — | — | — | 1 | 53 | 20 | 77 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 22 | 597 | 207 | 715 | 1642 | 262 | 92 | 22 | 22 | 0 | 72 | 73 | 72 | 71 | 0 | 2 | 80 | 47 | 715 | 1470 | 56 |
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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