Surf Forecasts:
Flies surf forecast from 17 Jul 2026:
- Best quality surf: Sunday 19 Jul, 11AM (local time) - 4.5ft (1.4m), 8s period, SSW swell with offshore winds.
- Most powerful swell: Wednesday 22 Jul, 5PM (local time) - 8ft (2.5m), 9s period, S swell with 1,138 kJ wave energy.
- Next surfable swell (1★+): Sunday 19 Jul, 11AM (local time) - 4.5ft (1.4m), 8s 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 Sunday (Jul 19) at 11AM. The primary swell is predicted to be 1.4m and 8s period with a secondary swell of 0.1m and 13s. 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 9s and forecast to arrive on Wednesday (Jul 22) at 5PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.7m 5s period and expected on Wednesday (Jul 22) at 8PM.
| Wave Type | Time (EDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 11AM (Sun 19th Jul) | 4.5ft (1.4m) 8s |
| Best Surf | 11AM (Sun 19th Jul) | 4.5ft (1.4m) 8s |
| Most Powerful | 5PM (Wed 22nd Jul) | 8ft (2.5m) 9s |
Table - best surf conditions forecast for Flies over the next 16 days.
The Lowdown
G’day, Rusty here. Look, I’ll be straight with you – this 16-day window for Flies is a real mixed bag, and for the most part, it’s pretty quiet. The first few days are a write-off, so we’re looking at a gap with no real surf on offer until July 19th. After that, there are a few moments that could be worth a paddle, but you’ve got to pick your windows.
The only real standout here is Sunday, July 19th. That morning, Flies is looking at a clean 5ft swell out of the SSW, with a period of 8 seconds and moderate wave energy (239). The wind is offshore from the NW at 12 mph, which is a major positive – it’ll keep the faces clean. This is the best-run surf of the whole outlook, with a decent little bump and good conditions. The afternoon hangs in there with a 4ft swell from the S, still offshore and clean, but the energy drops a bit (184). It’s not a massive day, but it’s the clear winner.
Monday, July 20th morning is a bit of a sleeper. The swell has dropped to 3ft from the S, but the wind is glassy – 0 mph – and that’s a beautiful thing. The energy is moderate (117), so it’ll be small and clean. Not a standout, but a nice little session if you’re after a quiet paddle.
After that, the surf gets messy. Wednesday, July 22nd morning sees a solid 7ft swell from the S, but the wind is a strong cross-shore at 25 mph, and the energy is strong (491), so it’s going to be a chaotic, blown-out mess. The afternoon of the 22nd cleans up a bit with an 8ft S swell and cross-off wind, but the energy is very strong (1978), and that’s a big, powerful wave for experienced surfers only. The wind is moderate, so it’s clean, but at 8ft, this is for experts.
The rest of the period is pretty grim. The swell stays small and weak, with onshore or cross-shore winds and poor surf conditions. There’s a tiny window on July 31st (Friday morning) with a 4ft SSW swell and light offshore wind, but the period is short (6 seconds) and the energy is weak (96). It’s surfable but ordinary.
There’s a big gap of poor surf from July 21st through to the 30th, with only that one expert-level window on the 22nd afternoon. For the most part, this setup looks more interesting for kite surfing than paddle surfing when the wind is strong and the swell is messy.
Keep an eye on July 19th – that’s your best bet. Long-range stuff on the 31st is promising but less certain.
Rusty.
Short Range ForecastHeavy rain (total 20mm), heaviest during Sat night. Warm (max 28°C on Thu night, min 21°C on Fri morning). Winds increasing (light winds from the NNW on Fri afternoon, strong winds from the SW by Sat night). | Days 5-7 Weather SummaryHeavy rain (total 23mm), heaviest during Wed afternoon. Warm (max 27°C on Wed afternoon, min 19°C on Sun night). Winds increasing (calm on Mon morning, strong winds from the SSW by Wed morning). | ||||||||||||||||||
Friday 17 | Saturday 18 | Sunday 19 | Monday 20 | Tuesday 21 | Wednesday 22 | ||||||||||||||
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) | SSW 5 | S 5 | S 5 | S 5 | S 3 | S 4 | SSW 6 | SSW 8 | S 8 | S 7 | S 8 | S 8 | S 7 | S 7 | SSE 7 | S 6 | S 8 | S 9 | S 9 |
Wave Graph  | |||||||||||||||||||
 kJ | 13 | 15 | 15 | 8 | 8 | 19 | 170 | 232 | 172 | 108 | 105 | 97 | 69 | 48 | 86 | 125 | 491 | 1138 | 476 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | cross-off | cross | cross | cross | cross-on | cross-off | off | off | cross-off | glassy | cross-on | cross-on | cross-on | cross-on | cross-on | cross | cross-off | cross-off |
High Tide | 10:04PM1.21m | 10:36AM1.06m | 10:54PM1.15m | 11:26AM1.05m | 11:43PM1.07m | 12:15PM1.03m | 00:32AM0.98m | 1:06PM1.00m | 1:23AM0.90m | 2:00PM0.97m | 2:18AM0.83m | 2:55PM0.95m | 3:16AM0.78m | ||||||
Low Tide | 4:01AM-0.04m | 4:09PM0.03m | 4:45AM-0.01m | 4:59PM0.08m | 5:28AM0.04m | 5:51PM0.15m | 6:12AM0.09m | 6:45PM0.20m | 6:56AM0.14m | 7:43PM0.25m | 7:42AM0.19m | 8:45PM0.29m | |||||||
 | |  |  | |  |  | | | | | |  | |  | | |  | | |
 | — | 5:31 | — | — | 5:33 | — | — | 5:33 | — | — | 5:33 | — | — | 5:35 | — | — | 5:35 | — | — |
 | 8:19 | — | 8:19 | — | — | 8:17 | — | — | 8:16 | — | — | 8:16 | — | — | 8:15 | — | — | 8:15 | — |
mm | — | — | — | — | — | 6 | 14 | — | — | — | — | — | — | — | 1 | 5 | 8 | 9 | — |
Temp °C | 28 | 23 | 26 | 24 | 24 | 23 | 23 | 23 | 26 | 25 | 20 | 22 | 22 | 23 | 25 | 24 | 24 | 27 | 23 |
Feels °C | 27 | 19 | 23 | 20 | 22 | 20 | 19 | 21 | 22 | 20 | 20 | 18 | 19 | 22 | 23 | 22 | 19 | 25 | 18 |
Swell 1 Height (m) Direction Period (s) | SSW 5 | S 5 | SE 8 | S 5 | SE 8 | SE 8 | SE 13 | SSW 8 | S 8 | S 7 | S 8 | S 8 | S 7 | S 7 | SE 12 | S 12 | — | S 9 | S 9 |
| kJ | 13 | 15 | 3 | 5 | 3 | 3 | 7 | 232 | 172 | 108 | 105 | 97 | 69 | 48 | 6 | 3 | — | 840 | 476 |
Swell 2 Height (m) Direction Period (s) | SE 9 | ENE 3 | — | SE 8 | SE 14 | SE 13 | E 8 | SE 13 | SE 13 | SE 12 | SE 12 | SE 12 | SE 8 | SE 8 | — | — | — | — | — |
| kJ | 3 | 1 | — | 3 | 7 | 7 | 1 | 7 | 6 | 6 | 6 | 6 | 3 | 2 | — | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | SE 15 | SE 8 | SE 14 | SE 14 | E 9 | E 8 | — | — | SE 13 | — | SE 12 | — | SE 12 | SE 12 | — | — | — | — | — |
| kJ | 9 | 3 | 8 | 8 | 2 | 1 | — | — | 6 | — | 6 | — | 6 | 6 | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | NE 3 | S 5 | SSW 3 | S 3 | S 4 | SSW 6 | NNW 3 | NNW 3 | N 3 | — | — | — | — | SSE 7 | S 6 | S 8 | S 9 | NNW 3 |
| kJ | — | 1 | 15 | 4 | 8 | 19 | 170 | 3 | 1 | 1 | — | — | — | — | 86 | 125 | 491 | 1138 | 3 |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 715 | 723 | 715 | 723 | 723 | 1470 | 262 | 0 | 0 | 71 | 0 | 80 | 80 | 1164 | 1164 | 1164 | 138 | 152 | 72 |
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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