Surf Forecasts:
Turtles surf forecast from 23 Aug 2026:
- Best quality surf: Wednesday 26 Aug, 5AM (local time) - 5ft (1.6m), 14s period, SW swell with cross-offshore winds.
- Most powerful swell: Thursday 27 Aug, 2AM (local time) - 10ft (3.0m), 17s period, WSW swell with 5,209 kJ wave energy.
- Next surfable swell (1★+): Wednesday 26 Aug, 5AM (local time) - 5ft (1.6m), 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 1.6m and 14s period with a secondary swell of 0.2m and 24s. Another secondary swell of 0.5m and 4s is also forecast. 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-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.6m 5s period and expected on Friday (Aug 28) at 11PM.
| Wave Type | Time (AWST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 5AM (Wed 26th Aug) | 5ft (1.6m) 14s |
| Best Surf | 5AM (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. I’m lookin’ at one spot this whole run: Turtles.
We’ve got a two-week-plus window ahead, and the first real chance to get wet is this Sunday morning, the 23rd of August. Turtles is an advanced reef break, fairly consistent, exposed to the swell, and it loves a good SSW pulse. The water’s sitting at 72.1°F right now, which is bang on average for the time of year – no surprises there.
Sunday the 23rd (morning): Some clouds around, but a cross-off breeze from the SSE at 12 mph keeps the faces tidy. We’ve got a solid 5.9ft SW groundswell rolling in with a 16-second period – that’s long period, proper energy, and it shows in the combined energy reading (1549). That’s moderate to strong energy. For an advanced reef break, that’s proper juice. The wind’s light enough to keep it clean, but the forecast says the tide or something else might be marginal, so don’t expect perfection. Still, this is the pick of the early part. The afternoon turns messy with a cross breeze and a drop in quality – not your time.
Monday the 24th (morning): Similar vibe – 5.6ft WSW groundswell, 15-second period, cross-off wind from the SE at 12 mph. Again, clean conditions and plenty of grunt (1444 combined energy). Worth a paddle. Afternoon switches to a cross-onshore and it gets choppy – bin that.
Tuesday the 25th (morning): Swell drops a bit to 4.9ft SW, period 13 seconds, still cross-off wind. Clean, but energy is down to 766 – weaker, less punch. Still surfable, just not the standout. Afternoon is a write-off with 19 mph cross-onshore.
Wednesday the 26th (morning): 5.6ft WSW swell, 14 seconds, but it’s a gentle cross-onshore – a bit choppy, only a 2/10 inside. The afternoon kicks up to 8.2ft WSW beast at 19 seconds, combined energy 4237 – strong, but it’s straight onshore and the report calls it poor. For the advanced crew, that’s big and messy, might be more windsurf territory.
Thursday the 27th (morning): This is when the size jumps. 9.8ft SW swell at 16 seconds, cross-off wind from the SSE at 19 mph. Energy is 4396 – that’s strong. It’s clean, but for a reef break, 9.8ft is serious – expert-only territory. The afternoon has 25 mph cross wind and becomes a total mess.
Friday the 28th (morning): Still a solid 6.9ft SW swell, 14 seconds, cross-off wind. Clean, decent energy (1641), but not the top pick due to the wind being a bit fresh at 19 mph. Afternoon – lumpy cross-chop, forget it.
Saturday the 29th: Drops right down – 3.9ft SW, 12 seconds, energy below 600. Clean both morning and afternoon with cross-off wind, but we’re scraping the bottom of the barrel for size and power.
Now, the real highlight lands on Sunday the 30th of August, morning. This is the standout of the entire run. We’ve got a 5.6ft WSW groundswell with a 17-second period – that’s a long period, proper groundswell. The wind goes glassy: NE at only 3 mph, cross-off, clean as a whistle. Combined energy is 1716, solid moderate-to-strong. The report calls it “excellent surf conditions for experienced surfers.” For an advanced reef like Turtles, with that light offshore and that long-period swell, the waves will be groomed, powerful, and lined up. This is the morning to block out. The afternoon gets onshore and turns to junk.
Monday the 31st (morning): Another gem – 5.2ft WSW, 16-second period, light NE breeze at 6 mph cross-off, energy 1751. Clean, powerful, and well-shaped. Again, only the morning – afternoon goes onshore.
Tuesday the 1st of September (morning): Still a bit of life – 5.9ft WSW, 16 seconds, but now a light cross-on from the NW at 6 mph. Small ripples, still surfable, but not as pristine as the two days before. Afternoon’s a no-go.
From Wednesday the 2nd of September
Short Range ForecastMostly dry. Warm (max 22°C on Tue afternoon, min 16°C on Mon morning). Mainly fresh winds. | Days 4-6 Weather SummaryMostly dry. Warm (max 21°C on Thu afternoon, min 14°C on Fri morning). Winds increasing (light winds from the S on Wed morning, strong winds from the SSE by Thu night). | ||||||||||||||||||||
Sunday 23 | Monday 24 | Tuesday 25 | Wednesday 26 | Thursday 27 | Friday 28 | Saturday 29 | |||||||||||||||
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) | SW 16 | SW 14 | WSW 14 | WSW 15 | SW 14 | WSW 14 | SW 13 | SW 12 | SW 15 | WSW 14 | WSW 19 | WSW 17 | SW 16 | SW 16 | SW 15 | SW 14 | SW 13 | SW 13 | SW 12 | SW 12 | WSW 16 |
Wave Graph | |||||||||||||||||||||
1474 | 1238 | 961 | 1368 | 1626 | 1005 | 746 | 607 | 881 | 990 | 4237 | 5209 | 4396 | 4136 | 3197 | 1641 | 1280 | 535 | 416 | 314 | 864 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross | cross-off | cross-off | cross-on | cross-off | cross-off | cross-on | cross | cross-on | on | cross | cross-off | cross | cross-off | cross-off | cross | cross-off | cross-off | cross-off | cross-off |
High Tide | 5:46AM0.96m | 7:17AM0.98m | 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 | ||||||||||
Low Tide | 2:11PM0.37m | 3:01PM0.31m | 3:32PM0.26m | 2:14AM0.67m | 3:58PM0.22m | 3:15AM0.60m | 4:20PM0.20m | 3:58AM0.51m | 4:41PM0.19m | 4:37AM0.43m | 5:01PM0.20m | ||||||||||
6:46 | — | — | 6:45 | — | — | 6:43 | — | — | 6:43 | — | — | 6:41 | — | — | 6:41 | — | — | 6:41 | — | — | |
— | 6:10 | — | — | 6:12 | — | — | 6:12 | — | — | 6:12 | — | — | 6:13 | — | — | 6:13 | — | — | 6:13 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 19 | 20 | 19 | 19 | 21 | 19 | 20 | 22 | 20 | 20 | 20 | 20 | 20 | 21 | 19 | 17 | 21 | 20 | 19 | 23 | 21 |
Feels °C | 16 | 16 | 16 | 15 | 18 | 14 | 16 | 19 | 16 | 19 | 17 | 15 | 14 | 14 | 12 | 11 | 15 | 13 | 13 | 17 | 15 |
Swell 1 Height (m) Direction Period (s) | SW 16 | SW 14 | WSW 14 | WSW 15 | SW 14 | WSW 14 | SW 13 | SW 12 | SW 15 | WSW 14 | WSW 19 | WSW 17 | SW 16 | SW 16 | SW 15 | SW 14 | SW 13 | SW 13 | SW 12 | SW 12 | WSW 16 |
1474 | 1238 | 961 | 1368 | 1626 | 1005 | 746 | 607 | 881 | 990 | 4237 | 5209 | 4396 | 4136 | 3197 | 1641 | 1280 | 535 | 416 | 314 | 864 | |
Swell 2 Height (m) Direction Period (s) | WSW 20 | WSW 18 | — | — | — | — | — | — | W 24 | W 21 | — | — | — | — | — | — | W 21 | W 20 | WSW 21 | WSW 18 | W 20 |
75 | 109 | — | — | — | — | — | — | 11 | 329 | — | — | — | — | — | — | 9 | 30 | 89 | 123 | 279 | |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | W 20 | WSW 21 | WSW 21 | — |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 30 | 89 | 89 | — | |
Wind waves Height (m) Direction Period (s) | — | — | SSW 6 | S 6 | — | S 4 | S 5 | SSW 4 | SSW 4 | — | — | — | SE 4 | — | SE 5 | SE 5 | — | SSE 6 | ESE 4 | SE 5 | SSE 4 |
— | — | 98 | 76 | — | 33 | 20 | 17 | 9 | — | — | — | 28 | — | 49 | 68 | — | 172 | 18 | 6 | 9 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 915 | 1073 | 424 | 25 | 1281 | 424 | 25 | 1285 | 7 | 251 | 920 | 980 | 241 | 1060 | 1060 | 980 | 545 | 541 | 241 | 792 | 25 |
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.











