Surf Forecasts:
Turtles surf forecast from 27 Aug 2026:
- Best quality surf: Sunday 30 Aug, 5AM (local time) - 4.5ft (1.3m), 17s period, WSW swell with cross-offshore winds.
- Most powerful swell: Thursday 27 Aug, 11PM (local time) - 10ft (3.0m), 15s period, SW swell with 3,810 kJ wave energy.
- Next surfable swell (1★+): Sunday 30 Aug, 5AM (local time) - 4.5ft (1.3m), 17s period with WSW 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 Sunday (Aug 30) at 5AM. The primary swell is predicted to be 1.3m and 17s period with a secondary swell of 1.1m and 11s. 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 15s and forecast to arrive on Thursday (Aug 27) at 11PM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.9m 5s period and expected on Friday (Aug 28) at 8AM.
| Wave Type | Time (AWST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 5AM (Sun 30th Aug) | 4.5ft (1.3m) 17s |
| Best Surf | 5AM (Sun 30th Aug) | 4.5ft (1.3m) 17s |
| Most Powerful | 11PM (Thu 27th Aug) | 10ft (3.0m) 15s |
Table - best surf conditions forecast for Turtles over the next 16 days.
The Lowdown
Alright, let’s get into it.
The next 16 days start out a bit messy, with a building swell but junky winds messing up the surface. We’ve got a solid stretch of surf coming through, but you’re going to have to pick your windows carefully. The first few days, Thursday the 27th through Saturday the 29th, are all about a solid SW swell (10ft down to 5ft), but the cross-shore winds are going to chop it up. The energy is strong, with combined totals in the thousands (3842, 2185, 1726), but it’s not going to be clean. It’s more of a “watch it from the beach” kind of vibe until the wind sorts itself out.
Then we get to Sunday the 30th. That’s when things start to get real. The wind drops to nothing – glassy conditions – and the swell, now a touch smaller at 6ft, is still solid and coming from the WSW with a very long 17 second period. This is proper groundswell, with 1978 combined energy. This is the best morning of the first week, hands down. The waves will have real push and shape, but that long period means it’ll be lining up better on the reef than it would at a beach break. Early morning, before the afternoon onshore kicks in, is the go.
Monday the 31st morning is also looking prime. Glassy again, with a 7ft WSW swell at 16 seconds, and 2577 energy. This is another standout. It’s got size and it’s clean. Afternoons on both these days get a bit ragged as the wind swings onshore, so make the most of the mornings.
The rest of the first week into the second week is a mixed bag. Tuesday the 1st and Wednesday the 2nd have some size (6ft and 7ft), but the winds are mostly cross or cross-shore, so it’ll be lumpy. Thursday the 3rd and Friday the 4th are similar – surfable but not great. The morning of Friday the 4th has lighter wind, but it’s still cross-shore.
The weekend of the 5th and 6th of September looks like a write-off for decent surfing – moderate to fresh cross-on winds and chop. You’d be better off with a kiteboard than a surfboard those afternoons.
Then, just as it seems to be fading, we get a nice little pulse for the start of the second week. Monday the 7th of September morning has a clean, offshore E wind and a 5ft SW swell at 12 seconds. It’s smaller, but it’s clean and lined up. Good for a fun session on a shortboard or a fish.
The swell dips low midweek (8th and 9th), but then it comes back for another run. Wednesday the 9th of September morning looks excellent – clean, cross-off wind, 5ft WSW swell but at a long 16 seconds, and 1189 energy. It’s not big, but it’s clean and that long period will make it feel better than the size suggests.
The last few days of the window, the 10th and 11th, have some more WSW swell filling in, but the winds get messy again in the afternoons. The mornings are still worth a look, especially the 11th which has a bit more size (7ft) but the wind goes cross-on in the afternoon.
So, to cut through it: Your two best windows are the mornings of Sunday the 30th and Monday the 31st of August. That’s the stand-out stretch. Big, clean, powerful swell. Then, keep an eye on the morning of Monday the 7th of September for a smaller, cleaner session, and the 9th of September morning for a sneaky long-period gem. The rest is a matter of picking through the chop.
Water temp is sitting around 73°, which is about normal for this time of year, barely a bump above average.
Alright, I’m out. Stay stoked.
Rusty
Short Range ForecastMostly dry. Warm (max 21°C on Sun afternoon, min 14°C on Fri night). Winds decreasing (fresh winds from the S on Thu night, calm by Sun morning). | Days 5-7 Weather SummaryMostly dry. Warm (max 25°C on Wed afternoon, min 17°C on Tue morning). Winds increasing (light winds from the SSW on Sun night, fresh winds from the S by Wed afternoon). | ||||||||||||||||||
Friday 28 | Saturday 29 | Sunday 30 | Monday 31 | Tuesday 1 | Wednesday 2 | ||||||||||||||
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 | SW 13 | SW 13 | SW 12 | SW 12 | WSW 19 | WSW 17 | WSW 18 | WSW 17 | WSW 16 | WSW 17 | WSW 17 | WSW 16 | WSW 16 | WSW 16 | SW 14 | SW 14 | WSW 14 |
Wave Graph | |||||||||||||||||||
3390 | 2185 | 1708 | 1306 | 760 | 583 | 772 | 1978 | 2299 | 2404 | 1972 | 2096 | 2173 | 1675 | 1493 | 1169 | 1624 | 1572 | 845 | |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | cross | cross-off | cross-off | cross | cross-off | glassy | cross-on | cross | cross-on | cross-on | cross-off | cross | cross | cross-off | cross-off | cross | cross-off |
High Tide | 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 | 12:29PM0.94m | 00:33AM1.23m | 1:08PM0.85m | 1:02AM1.25m | ||||||
Low Tide | 3:58AM0.51m | 4:41PM0.19m | 4:37AM0.43m | 5:01PM0.20m | 5:13AM0.34m | 5:21PM0.23m | 5:49AM0.27m | 5:41PM0.26m | 6:26AM0.22m | 6:02PM0.30m | 7:06AM0.19m | 6:23PM0.34m | |||||||
— | 6:41 | — | — | 6:41 | — | — | 6:39 | — | — | 6:39 | — | — | 6:37 | — | — | 6:37 | — | — | |
6:13 | — | 6:13 | — | — | 6:13 | — | — | 6:14 | — | — | 6:14 | — | — | 6:14 | — | — | 6:15 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 19 | 18 | 20 | 18 | 17 | 20 | 19 | 20 | 21 | 20 | 20 | 20 | 20 | 21 | 22 | 20 | 22 | 25 | 19 |
Feels °C | 13 | 11 | 13 | 11 | 13 | 16 | 15 | 20 | 18 | 17 | 19 | 16 | 17 | 18 | 18 | 16 | 18 | 20 | 13 |
Swell 1 Height (m) Direction Period (s) | SW 15 | SW 14 | W 22 | SW 13 | SW 12 | WSW 19 | SW 11 | WSW 17 | WSW 18 | WSW 17 | WSW 16 | WSW 17 | WSW 17 | WSW 16 | WSW 16 | WSW 16 | SW 14 | SW 14 | WSW 14 |
3390 | 2185 | 9 | 1306 | 760 | 292 | 366 | 1978 | 2299 | 2404 | 1972 | 2096 | 2173 | 1675 | 1493 | 1169 | 1624 | 1572 | 845 | |
Swell 2 Height (m) Direction Period (s) | — | — | — | W 20 | WSW 21 | WSW 19 | WSW 19 | — | — | — | W 20 | — | — | — | — | — | — | — | — |
— | — | — | 8 | 153 | 387 | 772 | — | — | — | 373 | — | — | — | — | — | — | — | — | |
Swell 3 Height (m) Direction Period (s) | — | — | — | W 24 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
— | — | — | 11 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Wind waves Height (m) Direction Period (s) | SE 4 | — | SW 13 | SE 4 | — | SW 12 | SSW 4 | — | — | — | — | — | — | S 4 | SSW 4 | S 4 | — | — | SSW 6 |
13 | — | 1708 | 11 | — | 583 | 19 | — | — | — | — | — | — | 10 | 21 | 40 | — | — | 135 | |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 424 | 1080 | 980 | 424 | 241 | 920 | 424 | 0 | 1059 | 25 | 251 | 1281 | 422 | 7 | 1073 | 535 | 25 | 1281 | 424 |
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.











