Surf Forecasts:
Turtles surf forecast from 25 Aug 2026:
- Best quality surf: Wednesday 26 Aug, 8AM (local time) - 5ft (1.6m), 14s period, SW swell with glassy winds.
- Most powerful swell: Thursday 27 Aug, 2AM (local time) - 10ft (3.0m), 17s period, WSW swell with 4,757 kJ wave energy.
- Next surfable swell (1★+): Wednesday 26 Aug, 5AM (local time) - 4.5ft (1.4m), 14s period with SW swell.
Best Forecast Surf Conditions for Turtles this week:
The surf forecast for Turtles over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Wednesday (Aug 26) at 5AM. The primary swell is predicted to be 1.4m and 14s period with a secondary swell of 0.3m and 4s. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Turtles in the next 16 days are 3.0m 17s and forecast to arrive on Thursday (Aug 27) at 2AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.9m 4s period and expected on Thursday (Aug 27) at 8PM.
| Wave Type | Time (AWST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 5AM (Wed 26th Aug) | 4.5ft (1.4m) 14s |
| Best Surf | 8AM (Wed 26th Aug) | 5ft (1.6m) 14s |
| Most Powerful | 2AM (Thu 27th Aug) | 10ft (3.0m) 17s |
Table - best surf conditions forecast for Turtles over the next 16 days.
The Lowdown
Alright, let’s get into it. This is a pure reef set-up, solid but demanding, and it takes a bit of patience to get the really good windows.
The main story here is that we’ve got a long run of decent sized, long period SW to WSW groundswell, but the wind is going to be the main player. For the most part, the afternoons this week are a write-off with strong, lumpy cross-shore winds, so mornings are where it’s at. The real standout is coming up this Sunday, the 30th of August.
Let’s start with Wednesday morning, the 26th. We’ve got a 5ft swell from the SW, period around 14 seconds, but the wind is already cross-on from the WNW. It’s marginal, and the wave energy is already high (1124), so it’s a bit of a messy start. Not worth getting too excited about.
Thursday morning, the 27th, the swell is up to 10ft from the WSW, with a 16-second period. That’s a big, powerful groundswell and the energy is through the roof (4374). The wind is cross-off from the S, so the face might be clean, but that’s a serious power level. Over 8ft, this is strictly for experts only. The reef will be handling it, but it’s a heavy session.
Friday, the 28th, morning is similar, 8ft from the SW, 14-second period, cross-off from the SSE. Clean, but still a lot of energy (2350). The afternoon is a mess.
Now, the window we’re looking at. Sunday morning, the 30th of August. This is the pick of the whole 16 days. We’ve got a 6ft swell from the WSW, a very long 17-second period, and the wind is glassy from the SW. That’s a clean, glassy morning on a reef break. The energy is high (2001), but the period is so long, the sets will be well-spaced and defined. The wave quality is going to be excellent for experienced surfers. This is the one.
Monday morning, the 31st, is still okay, 6ft from the WSW, 16-second period, but the wind is cross from the S, so it’s not as clean. The energy is still high (2262). It’s a solid option, but not the standout.
The following week, into September, the pattern holds. Tuesday morning, the 1st of September, is a 6ft WSW swell, 16 seconds, with cross-off SSE wind. Clean, but the energy is still high (1512).
Wednesday morning, the 2nd of September, bumps up again to 8ft SW, 14 seconds, cross-off from the SSE. Clean, but heavy. That’s another one for the experts.
Then there’s a bit of a lull in quality towards the end of the first week of September, with lumpy, strong winds and poor conditions. The energy drops off a bit, but the wind is just not cooperating.
Looking further ahead, the second week has two more promising mornings. Sunday, the 6th of September, morning – 8ft from the SW, 13 seconds, with a cross-off NE wind. Clean, good energy (1919). That’s a solid morning.
But the real second-week highlight is Monday, the 7th of September. Glassy conditions from the NNE, 6ft SW swell, 13-second period. Clean and glassy. The energy is solid (1401). That’s a beautiful morning, but it’s a week and a half away, so we’ll keep an eye on the models.
And finally, the 10th of September, Thursday morning, is another interesting one. The swell drops to 4ft, but it’s from the W with a massive 21-second period. The wind is cross-off from the NE. That’s a very long period groundswell, and the energy is still high (2203) for the size. That’s a classic reef swell—very long lines, but it’ll be breaking straight at most beach breaks. At Turtles, it’ll likely wrap in nicely. That’s a promising, long-range potential.
So, the bottom line. The best on offer is Sunday morning, the 30th of August. Glassy, head-high plus, long period groundswell. That’s the one you wait for. The mornings of the 7th of September are also a very good shout if you can hold out for the second week, but it’s less certain that far out.
Crowds are listed as “often” here, and with a setup this good on a Sunday, you can expect plenty of company. It’s a consistent reef, so the locals will be out.
There’s a bit of a gap in the middle of the first week where the afternoons are a total mess and the mornings are just marginal, but the pattern overall is pretty active. It’s not a flat run.
Rusty.
Short Range ForecastSome drizzle, heaviest during Wed night. Warm (max 21°C on Thu afternoon, min 14°C on Fri morning). Winds increasing (calm on Wed morning, fresh winds from the S by Fri afternoon). | Days 5-7 Weather SummaryMostly dry. Warm (max 22°C on Mon afternoon, min 15°C on Sat morning). Winds decreasing (strong winds from the S on Fri night, calm by Sun morning). | ||||||||||||||||||
Wednesday 26 | Thursday 27 | Friday 28 | Saturday 29 | Sunday 30 | Monday 31 | ||||||||||||||
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 14 | WSW 16 | WSW 17 | WSW 16 | WSW 16 | SW 15 | SW 14 | SW 13 | WSW 13 | SW 12 | SW 12 | WSW 19 | WSW 17 | WSW 18 | WSW 17 | WSW 16 | WSW 16 | WSW 17 |
Wave Graph | |||||||||||||||||||
953 | 893 | 1977 | 4757 | 4374 | 3691 | 3224 | 2350 | 1736 | 563 | 760 | 549 | 772 | 2001 | 2516 | 2268 | 1772 | 1761 | 1893 | |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross-on | on | cross-on | cross-off | cross | cross-off | cross-off | cross | cross-off | cross-off | cross | cross-off | glassy | cross-on | cross | cross | cross-on | cross-off |
High Tide | 10:47PM0.73m | 8:24AM1.01m | 10:38PM0.79m | 9:15AM1.05m | 10:47PM0.87m | 9:58AM1.07m | 11:03PM0.96m | 10:37AM1.08m | 11:22PM1.04m | 11:15AM1.06m | 11:43PM1.12m | 11:52AM1.01m | 00:07AM1.18m | ||||||
Low Tide | 2:14AM0.67m | 3:58PM0.22m | 3:15AM0.60m | 4:20PM0.20m | 3:58AM0.51m | 4:41PM0.19m | 4:37AM0.43m | 5:01PM0.20m | 5:13AM0.34m | 5:21PM0.23m | 5:49AM0.27m | 5:41PM0.26m | |||||||
— | 6:43 | — | — | 6:41 | — | — | 6:41 | — | — | 6:41 | — | — | 6:39 | — | — | 6:39 | — | — | |
6:12 | — | 6:12 | — | — | 6:13 | — | — | 6:13 | — | — | 6:13 | — | — | 6:14 | — | — | 6:14 | — | |
mm | — | — | — | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 20 | 20 | 20 | 20 | 20 | 21 | 19 | 17 | 20 | 19 | 18 | 20 | 18 | 20 | 20 | 20 | 20 | 22 | 20 |
Feels °C | 16 | 19 | 17 | 16 | 15 | 16 | 13 | 10 | 12 | 12 | 14 | 16 | 13 | 20 | 18 | 17 | 18 | 19 | 15 |
Swell 1 Height (m) Direction Period (s) | SW 15 | SW 14 | WSW 16 | WSW 17 | WSW 16 | WSW 16 | SW 15 | SW 14 | W 22 | WSW 13 | SW 12 | WSW 19 | SW 11 | WSW 17 | WSW 18 | WSW 17 | WSW 16 | WSW 16 | WSW 17 |
953 | 893 | 1977 | 4757 | 4374 | 3691 | 3224 | 2350 | 9 | 563 | 760 | 292 | 320 | 2001 | 2516 | 2268 | 1772 | 1761 | 1893 | |
Swell 2 Height (m) Direction Period (s) | W 24 | W 21 | W 20 | — | — | — | — | — | W 22 | W 20 | WSW 21 | — | WSW 19 | — | — | — | W 20 | — | — |
11 | 231 | 932 | — | — | — | — | — | 9 | 30 | 153 | — | 772 | — | — | — | 490 | — | — | |
Swell 3 Height (m) Direction Period (s) | W 24 | — | — | — | — | — | — | — | — | W 24 | — | — | — | — | — | — | — | — | — |
11 | — | — | — | — | — | — | — | — | 11 | — | — | — | — | — | — | — | — | — | |
Wind waves Height (m) Direction Period (s) | — | — | — | SW 4 | — | — | — | SSE 5 | SW 13 | SSW 7 | SE 4 | SW 12 | — | — | — | — | — | SW 3 | S 4 |
— | — | — | 18 | — | — | — | 37 | 1736 | 261 | 3 | 549 | — | — | — | — | — | 5 | 28 | |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 7 | 241 | 898 | 1059 | 1693 | 1694 | 424 | 1080 | 1060 | 424 | 25 | 792 | 424 | 0 | 907 | 7 | 7 | 1693 | 521 |
Best forecast wave conditions in North West WA | |||||||||||||||||||
Best forecast wave conditions in Australia | |||||||||||||||||||
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Information about the Turtles Surf forecast
The above surf forecast table for Turtles provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Turtles can be found by selecting the local surf guide option on the grey menu. Our Turtles 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 (Turtles) 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 Turtles 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.











