
Surf Forecasts:
Turtles surf forecast from 4 Aug 2026:
- Best quality surf: Thursday 6 Aug, 5AM (local time) - 8ft (2.5m), 16s period, WSW swell with cross-offshore winds.
- Most powerful swell: Sunday 9 Aug, 2PM (local time) - 10ft (3.0m), 17s period, SW swell with 5,786 kJ wave energy.
- Next surfable swell (1★+): Wednesday 5 Aug, 5AM (local time) - 7ft (2.1m), 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 Wednesday (Aug 05) at 5AM. The primary swell is predicted to be 2.1m and 17s period. 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 Sunday (Aug 09) at 2PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.7m 6s period and expected on Tuesday (Aug 11) at 5AM.
| Wave Type | Time (AWST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 5AM (Wed 5th Aug) | 7ft (2.1m) 17s |
| Best Surf | 5AM (Thu 6th Aug) | 8ft (2.5m) 16s |
| Most Powerful | 2PM (Sun 9th Aug) | 10ft (3.0m) 17s |
Table - best surf conditions forecast for Turtles over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let’s have a look at what’s comin’ our way.
We’ve got a solid run of swell on the cards, but this isn’t a wave for the faint-hearted. The standout is Turtles, a heavy reef break that’s only for the advanced crew. The water temp is about average for the time of year, so no surprises there.
The pattern kicks off on Wednesday the 5th of August. We’re looking at a 8ft swell from the WSW with a very long 16-second period, packing a powerful 2648 units of energy. The morning has a moderate ESE breeze, giving us clean, offshore conditions. Wednesday afternoon goes glassy with a light SSE breeze—absolutely pristine. This is the best on offer early on: big, clean, and lined up. But at this size, it’s experts only.
Thursday the 6th brings a bit more size, 8ft from the same direction, and the energy jumps to 3548. The morning is clean with a light SE cross-offshore breeze, but the afternoon turns choppy with a cross-on wind. Friday the 7th is messy with cross-shore winds and a cross-chop, so the quality drops. Saturday the 8th starts clean but the wind cranks up, and by the afternoon it’s a messy cross-shore gale.
Sunday the 9th is a real standout for the big wave chargers. We’ve got a solid 10ft swell from the SW with a 17-second period, and the energy is a massive 5579. The wind holds clean and cross-off all day. This is the peak of the first week—powerful, clean, and demanding. Monday the 10th is still clean but the swell dips a little.
Now, Tuesday the 11th of August is the other major highlight. The morning brings an 8ft swell from the SW with a very long 19-second period, and the energy is pumping at 5167. The wind is fresh offshore from the ESE, making for some absolutely perfect, hollow waves. This is a true standout, but it’s a long-period groundswell, so it’ll be breaking straight at a beach break. This setup is best for a reef or point, and Turtles is a reef, so that’s the spot. Crowds are likely here, so get in early.
The second week is a bit more mixed. The swell hangs around but the wind gets a bit tricky. Wednesday the 12th has offshore winds but the size drops to 7ft. Thursday the 13th is clean and dropping to 6ft. Friday the 14th has a clean morning but a choppy afternoon. The weekend of the 15th and 16th is onshore and messy, with the swell holding around 6ft to 8ft.
Then, on Monday the 17th of August, we get another big one. A 10ft swell from the WSW with a 16-second period, and an exceptional 5006 energy. The morning is glassy with a gentle offshore breeze. This is the best of the second week, but it’s a long way out, so keep an eye on it. The afternoon turns onshore and choppy.
After that, it’s a mix of clean mornings and onshore afternoons through to the 20th. The swell stays solid, but the wind is the main variable.
Overall, the standout days are Wednesday the 5th, Sunday the 9th, and Tuesday the 11th. For the second week, Monday the 17th is the one to watch if the forecast holds. This is a reef break that’s fairly consistent, so when it’s good, it’s very good.
Rusty.
Short Range ForecastLight rain (total 5mm), mostly falling on Tue night. Warm (max 24°C on Wed afternoon, min 18°C on Tue night). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Warm (max 21°C on Sat afternoon, min 11°C on Sun morning). Winds increasing (light winds from the S on Fri night, fresh winds from the S by Sat afternoon). | ||||||||||||||||||
Wednesday 5 | Thursday 6 | Friday 7 | Saturday 8 | Sunday 9 | Monday 10 | ||||||||||||||
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) | WSW 17 | WSW 16 | WSW 16 | WSW 16 | WSW 16 | WSW 16 | WSW 16 | WSW 16 | WSW 16 | SW 15 | SW 15 | WSW 15 | SW 14 | SW 17 | SW 17 | SW 17 | SW 16 | SW 15 | SW 14 |
Wave Graph | |||||||||||||||||||
2594 | 2648 | 2178 | 2973 | 3548 | 3548 | 3024 | 2472 | 2178 | 2120 | 2037 | 1714 | 2985 | 5569 | 5569 | 4018 | 2481 | 1962 | 951 | |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | off | glassy | cross-off | cross-off | cross-on | cross-off | cross | cross | cross | cross-off | cross | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off |
High Tide | 1:48AM1.15m | 2:00PM0.80m | 2:19AM1.17m | 2:52PM0.69m | 2:57AM1.19m | 4:03PM0.58m | 3:46AM1.19m | 6:11PM0.52m | 4:52AM1.18m | 6:15AM1.17m | |||||||||
Low Tide | 8:11AM0.34m | 7:24PM0.34m | 9:07AM0.33m | 7:45PM0.40m | 10:20AM0.32m | 8:03PM0.45m | 12:03PM0.30m | 8:07PM0.50m | 1:47PM0.23m | 2:55PM0.16m | |||||||||
— | 7:00 | — | — | 6:58 | — | — | 6:58 | — | — | 6:58 | — | — | 6:56 | — | — | 6:56 | — | — | |
6:04 | — | 6:04 | — | — | 6:05 | — | — | 6:05 | — | — | 6:05 | — | — | 6:06 | — | — | 6:06 | — | |
mm | 2 | — | — | — | — | 2 | — | 1 | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 18 | 20 | 24 | 22 | 21 | 23 | 20 | 18 | 20 | 20 | 20 | 21 | 18 | 15 | 20 | 19 | 17 | 21 | 20 |
Feels °C | 16 | 18 | 25 | 21 | 20 | 22 | 18 | 16 | 17 | 17 | 15 | 14 | 12 | 7 | 13 | 13 | 10 | 14 | 14 |
Swell 1 Height (m) Direction Period (s) | WSW 17 | WSW 16 | WSW 16 | WSW 16 | WSW 16 | WSW 16 | WSW 16 | WSW 16 | WSW 16 | SW 15 | SW 15 | WSW 15 | SW 14 | SW 17 | SW 17 | SW 17 | SW 16 | SW 15 | SW 14 |
2594 | 2648 | 2178 | 2973 | 3548 | 3548 | 3024 | 2472 | 2178 | 2120 | 2037 | 1714 | 2985 | 5569 | 5569 | 4018 | 2481 | 1962 | 951 | |
Swell 2 Height (m) Direction Period (s) | N 4 | — | — | — | — | — | — | WNW 13 | NW 12 | NW 11 | NW 11 | NW 11 | NW 10 | WNW 10 | WNW 10 | W 21 | WSW 19 | WSW 19 | WSW 18 |
15 | — | — | — | — | — | — | 16 | 23 | 32 | 30 | 29 | 17 | 10 | 10 | 432 | 627 | 74 | 352 | |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | NW 11 | — | — | — | — | NW 10 | W 24 |
— | — | — | — | — | — | — | — | — | — | — | — | 18 | — | — | — | — | 4 | 11 | |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | SSW 5 | SSW 5 | SSE 5 | SE 5 | — | S 5 | SSE 5 | S 5 | S 5 |
— | — | — | — | — | — | — | — | — | — | 31 | 91 | 46 | 35 | — | 44 | 56 | 71 | 134 | |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 0 | 0 | 0 | 25 | 0 | 1277 | 25 | 243 | 1281 | 1693 | 1693 | 1694 | 424 | 424 | 1693 | 424 | 424 | 424 | 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.











