Surf Forecasts:
Flynns Reef surf forecast from 17 Aug 2026:
- Best quality surf: Tuesday 18 Aug, 4AM (local time) - 4.5ft (1.3m), 15s period, SW swell with cross-offshore winds.
- Most powerful swell: Saturday 22 Aug, 4PM (local time) - 10ft (3.0m), 16s period, WSW swell with 4,004 kJ wave energy.
- Next surfable swell (1★+): Tuesday 18 Aug, 4AM (local time) - 4.5ft (1.3m), 15s period with SW swell.
Best Forecast Surf Conditions for Flynns Reef this week:
The surf forecast for Flynns Reef over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Tuesday (Aug 18) at 4AM. The primary swell is predicted to be 1.3m and 15s period. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Flynns Reef in the next 16 days are 3.0m 16s and forecast to arrive on Saturday (Aug 22) at 4PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.7m 5s period and expected on Tuesday (Aug 18) at 4AM.
| Wave Type | Time (AEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 4AM (Tue 18th Aug) | 4.5ft (1.3m) 15s |
| Best Surf | 4AM (Tue 18th Aug) | 4.5ft (1.3m) 15s |
| Most Powerful | 4PM (Sat 22nd Aug) | 10ft (3.0m) 16s |
Table - best surf conditions forecast for Flynns Reef over the next 16 days.
The Lowdown
Alright folks, it’s Rusty here, and I’ve been staring at the charts for Flynns Reef. It’s a bit of a mixed bag, but we’ve got some real moments to get excited about, so let’s break it down.
The overall pattern is frustrating. There’s plenty of swell energy on the way, but for most of the next two weeks, the wind is just going to shank it. We’ll see a lot of lumpy, cross-onshore junk that’s more of a headache than a session. But there are a few clean windows, and one absolute gem right at the end.
Flynns Reef (reef break) is our only spot, and it’s a consistent, fairly exposed reef that loves a SW swell. The water temp is sitting at 56°, which is pretty much bang on average for this time of year, so no nasty surprises there.
The first real chance comes on Monday the 17th afternoon. The swell is 4ft from the SW, with a solid 16-second period (groundswell). The combined energy is sitting at 834 (moderate). The wind is a SE cross-off at 12 mph, which is clean. It’s a small window, but it’s rideable. The score is marginal though, so keep expectations in check.
Tuesday the 18th morning is a better call. The swell drops a touch to 4ft, still SW, with a 15-second period. The combined energy is 821 (moderate). The wind is a NE cross-off at 9 mph, and the forecast is for very good surf. This is a solid morning for a more experienced surfer looking for a clean, lined-up reef. The Tuesday afternoon is smaller but still clean with a 3ft swell and 14-second period.
Then the wind turns ugly. From Wednesday the 19th morning through to Monday the 24th morning, it’s a relentless onslaught of strong to fresh breezes from the north and northwest, creating choppy, lumpy, cross-onshore junk. The swell stays in the 2ft to 6ft range, but the quality is shot. The Saturday the 22nd sees a bigger 6ft to 8ft SW swell, but with strong onshore winds, it’s a complete mess. This is a kite surfer’s playground, not a paddle surfer’s, at that size with that wind.
We get a brief reprieve on Monday the 24th afternoon. The wind drops to a glassy 3 mph from the SW, and the swell is a clean 4ft from the SW with a 14-second period. The combined energy is 626 (moderate). This is a great little session for a glassy evening surf.
The next good window is Tuesday the 25th afternoon. Again, glassy conditions with the wind swinging to ESE at 3 mph, and the swell is 3ft from the SW with a 12-second period. Combined energy is 366 (moderate). Clean and small, good for a grovel.
From Wednesday the 26th through to Sunday the 30th, it’s back to the same old story. Strong winds from the west and northwest, with a few bigger pulses of swell on the 28th and 30th. The 28th sees a 7ft WSW swell with a 13-second period and a combined energy of 2949 (strong), but it’s onshore and strong. The 30th has a 7ft SSW swell with a 16-second period and 2606 (strong) energy, but again, onshore. These are expert-only, blown-out walls of water.
The standout. Monday the 31st of August morning is the one to circle. The wind is glassy from the East at 3 mph. The swell is 4ft from the SW with a 14-second period, and the combined energy is a solid 1398 (moderate to strong). The forecast says excellent surf conditions for experienced surfers. This is the cleanest, most powerful, and most lined-up window of the entire forecast. For a reef break like Flynns, the long period SW groundswell with glassy conditions is a dream. The crowd factor is that it’s “often” busy, so expect company, but for that quality, it’ll be worth it.
The first week of September sees a return to cleaner, smaller swells, with a 4ft to 4ft SW swell on the 1st, but the wind is cross-off, not glassy, so it’s good but not as special as that 31st morning.
So, to sum it up: the next two weeks are mostly a write-off thanks to the wind, but there are a few clean, glassy windows. The absolute best on offer is the morning of Monday the 31st of August. That’s the one you want to get out of bed for.
Rusty.
Short Range ForecastLight rain (total 3mm), mostly falling on Wed morning. Very mild (max 17°C on Tue afternoon, min 11°C on Mon night). Winds increasing (light winds from the NE on Tue morning, strong winds from the N by Wed morning). | Days 5-7 Weather SummaryMostly dry. Very mild (max 13°C on Fri afternoon, min 10°C on Sat night). Mainly fresh winds. | ||||||||||||||||||
Tuesday 18 | Wednesday 19 | Thursday 20 | Friday 21 | Saturday 22 | Sunday 23 | ||||||||||||||
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) | SW 15 | SW 15 | SW 14 | SW 16 | SW 14 | SW 15 | SW 15 | SW 13 | WSW 13 | SW 13 | SW 12 | WSW 11 | SW 16 | SW 15 | WSW 16 | SW 15 | SW 14 | SW 14 | SW 16 |
Wave Graph | |||||||||||||||||||
715 | 535 | 398 | 339 | 169 | 147 | 171 | 257 | 421 | 424 | 414 | 597 | 1739 | 1823 | 4004 | 1784 | 1374 | 1123 | 1281 | |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | cross-off | cross-off | cross-off | cross | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | on | on | cross-on | on |
High Tide | 3:32AM2.33m | 3:35PM2.41m | 4:16AM2.31m | 4:11PM2.36m | 4:59AM2.26m | 4:46PM2.28m | 5:39AM2.18m | 5:20PM2.19m | 6:21AM2.09m | 5:54PM2.09m | 7:05AM1.99m | 6:31PM1.99m | |||||||
Low Tide | 9:31AM0.49m | 9:58PM0.19m | 10:12AM0.59m | 10:36PM0.20m | 10:51AM0.70m | 11:14PM0.25m | 11:28AM0.81m | 11:51PM0.32m | 12:06PM0.92m | 00:30AM0.41m | 12:47PM1.03m | 1:13AM0.50m | |||||||
— | 7:01 | — | — | 7:01 | — | — | 7:00 | — | — | 6:58 | — | — | 6:56 | — | — | 6:54 | — | — | |
— | — | 5:44 | — | — | 5:45 | — | — | 5:45 | — | — | 5:46 | — | — | 5:47 | — | — | 5:49 | — | |
mm | — | — | — | — | 1 | 1 | — | — | 1 | — | — | — | — | — | — | — | — | — | 1 |
Temp °C | 15 | 15 | 17 | 16 | 14 | 14 | 14 | 15 | 16 | 12 | 12 | 13 | 12 | 13 | 13 | 12 | 12 | 13 | 13 |
Feels °C | 11 | 11 | 14 | 12 | 7 | 6 | 9 | 9 | 9 | 7 | 7 | 7 | 6 | 8 | 7 | 7 | 7 | 9 | 8 |
Swell 1 Height (m) Direction Period (s) | SW 15 | SW 15 | SW 14 | SW 16 | SW 14 | SW 15 | SW 15 | SW 13 | WSW 13 | SW 13 | SW 12 | SW 11 | SW 16 | SW 15 | SW 16 | SW 15 | SW 14 | SW 14 | SW 16 |
715 | 535 | 398 | 339 | 169 | 147 | 171 | 257 | 421 | 424 | 414 | 303 | 1739 | 1823 | 2203 | 1784 | 1374 | 1123 | 1281 | |
Swell 2 Height (m) Direction Period (s) | SE 5 | SW 19 | — | SW 16 | ESE 7 | ESE 7 | SW 21 | SW 18 | SW 17 | SW 17 | SW 15 | SW 14 | — | — | — | — | SW 18 | SW 18 | — |
5 | 125 | — | 193 | 4 | 4 | 17 | 114 | 104 | 104 | 395 | 289 | — | — | — | — | 157 | 154 | — | |
Swell 3 Height (m) Direction Period (s) | — | SW 18 | — | ESE 4 | — | — | ESE 7 | — | — | — | SW 20 | SW 18 | — | — | — | — | SSW 18 | SSW 18 | — |
— | 161 | — | 6 | — | — | 5 | — | — | — | 97 | 366 | — | — | — | — | 31 | 31 | — | |
Wind waves Height (m) Direction Period (s) | ESE 5 | — | ESE 6 | — | N 3 | NNW 4 | NW 3 | W 4 | NW 4 | — | — | WSW 11 | — | NW 3 | WSW 16 | — | — | WSW 5 | — |
28 | — | 12 | — | 7 | 15 | 6 | 20 | 12 | — | — | 597 | — | 3 | 4004 | — | — | 71 | — | |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 7 | 0 | 0 | 7 | 27 | 76 | 2 | 61 | 70 | 2 | 2 | 2 | 10 | 70 | 84 | 4 | 4 | 2 | 10 |
Best forecast wave conditions in Phillip Island | |||||||||||||||||||
Best forecast wave conditions in Australia | |||||||||||||||||||
Header Global | |||||||||||||||||||
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Information about the Flynns Reef Surf forecast
The above surf forecast table for Flynns Reef provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Flynns Reef can be found by selecting the local surf guide option on the grey menu. Our Flynns Reef 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 (Flynns Reef) 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 Flynns Reef 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.
Flynns Reef is 32 km (20 miles) from Mornington. If you plan a holiday in Phillip Island, look for hotels and other accommodation in Mornington. Mornington has rooms for a wide range of budgets as well as car hire and transport links.











