
Surf Forecasts:
Turtles surf forecast from 9 Aug 2026:
- Best quality surf: Wednesday 12 Aug, 2PM (local time) - 7.5ft (2.3m), 16s period, SW swell with offshore winds.
- Most powerful swell: Sunday 9 Aug, 8PM (local time) - 10ft (3.0m), 17s period, SW swell with 5,179 kJ wave energy.
- Next surfable swell (1★+): Wednesday 12 Aug, 2PM (local time) - 7.5ft (2.3m), 16s 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 12) at 2PM. The primary swell is predicted to be 2.3m and 16s period. The wind is predicted to be 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 8PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.2m 5s period and expected on Tuesday (Aug 11) at 11AM.
| Wave Type | Time (AWST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 2PM (Wed 12th Aug) | 7.5ft (2.3m) 16s |
| Best Surf | 2PM (Wed 12th Aug) | 7.5ft (2.3m) 16s |
| Most Powerful | 8PM (Sun 9th Aug) | 10ft (3.0m) 17s |
Table - best surf conditions forecast for Turtles over the next 16 days.
The Lowdown
Alright, this is Rusty again, same look, but I’ll talk in feet now.
The water temp is sitting at about 73°F, which is roughly 2°F warmer than the norm for this time of year. Just a little warmer than usual.
The set-up is the same: Turtles is an advanced reef break, open to the south-west swell. There’s a proper run of groundswell coming, but the wind is the main thing to watch.
Let’s start with Sunday, August 9th. We’ve got a 10-foot swell from the southwest, with a very long 17-second period. That’s massive energy (5733). It’s big, it’s clean with a cross-off southeast wind at 15 mph, and it’s for experts only. That’s the top pick for the first week. The crowd will be there often, but it’s worth it.
Monday the 10th starts with a 8-foot swell (15 seconds, 3045 energy), but the afternoon goes to crap with onshore wind. Tuesday the 11th: the morning is small at 3 feet with long period, but the afternoon jumps back to 8 feet (3761 energy) with a strong, clean breeze. You’ll be paddling hard.
Wednesday the 12th is your next big standout. The morning has an 8-foot southwest swell with a 16-second period, and the wind is offshore from the east-southeast at 22 mph (3097 energy). That’s a clean, powerful window. The afternoon holds a 7-foot swell with light offshore breezes.
Thursday the 13th, the swell drops to 6 feet, but the wind stays offshore in the a.m. – still good. Friday the 14th morning is excellent: a 7-foot swell from the west-southwest with a 17-second period, light southeast winds, and 2252 energy. That’s a clean, quality wave.
From Saturday the 15th into the next week, it gets rough. The swell drops, and the wind goes onshore. A few days of not much.
Then Monday the 17th delivers again. The morning shows an 8-foot swell from the west-southwest, a 16-second period, light south-southeast winds, and 3182 energy. Another top-tier, clean window.
The middle of that week from August 18th through the 20th is bad. There’s 10-foot to 12-foot swell, but the wind is onshore and strong. The energy is crazy (up to 4897 on the 20th), but the quality is terrible. Honestly, this looks better for kite surfing.
It cleans up around the weekend of August 22nd and 23rd. The 22nd has an 8-foot southwest swell with a 17-second period, 5339 energy, and clean cross-off winds. That’s a promising long-range option.
By Monday the 24th, the swell backs off to 5 feet, but the morning is clean and called excellent for experienced surfers. A nice end to the run.
My two standouts in feet: the afternoon of August 9th with a 10-foot, 17-second groundswell, and the morning of August 17th with an 8-foot, 16-second west-southwest swell. Both are clean and powerful. The rest is there, but pick your moments.
Rusty.
Short Range ForecastMostly dry. Very mild (max 19°C on Sun afternoon, min 11°C on Wed morning). Winds increasing (light winds from the SSW on Mon afternoon, strong winds from the SE by Tue morning). | Days 5-7 Weather SummaryMostly dry. Warm (max 23°C on Thu afternoon, min 15°C on Thu morning). Wind will be generally light. | |||||||||||||||||||
Sun 9 | Monday 10 | Tuesday 11 | Wednesday 12 | Thursday 13 | Friday 14 | Saturday 15 | ||||||||||||||
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 17 | SW 16 | SW 15 | SW 15 | SW 14 | WSW 16 | SW 16 | SW 16 | SW 16 | SW 16 | SW 15 | SW 14 | SW 14 | SW 17 | WSW 17 | SW 16 | SW 16 | SW 15 | SW 14 | SW 14 |
Wave Graph | ||||||||||||||||||||
5733 | 3903 | 2418 | 2146 | 1083 | 518 | 3761 | 3937 | 3097 | 2374 | 1563 | 1290 | 1426 | 2136 | 2242 | 2160 | 1933 | 1325 | 1094 | 1049 | |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | cross-off | cross-on | cross-off | cross-off | cross-off | cross-off | off | cross-off | cross-off | off | cross-on | cross-off | cross-off | cross-on | cross-on | cross | cross-on | cross |
High Tide | 6:15AM1.17m | 7:40AM1.19m | 10:31PM0.72m | 8:52AM1.22m | 10:51PM0.81m | 9:53AM1.22m | 11:16PM0.92m | 10:45AM1.19m | 11:43PM1.02m | 11:31AM1.13m | 00:11AM1.11m | |||||||||
Low Tide | 2:55PM0.16m | 3:43PM0.11m | 2:13AM0.61m | 4:21PM0.08m | 3:31AM0.52m | 4:54PM0.09m | 4:31AM0.42m | 5:22PM0.13m | 5:22AM0.34m | 5:48PM0.18m | ||||||||||
— | — | 6:56 | — | — | 6:56 | — | — | 6:54 | — | — | 6:54 | — | — | 6:52 | — | — | 6:52 | — | — | |
6:06 | — | — | 6:06 | — | — | 6:07 | — | — | 6:07 | — | — | 6:07 | — | — | 6:07 | — | — | 6:07 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 19 | 19 | 17 | 19 | 18 | 15 | 19 | 18 | 15 | 22 | 21 | 20 | 23 | 22 | 21 | 23 | 22 | 23 | 23 | 22 |
Feels °C | 12 | 14 | 12 | 14 | 14 | 5 | 10 | 10 | 6 | 16 | 14 | 13 | 18 | 15 | 16 | 18 | 18 | 19 | 18 | 18 |
Swell 1 Height (m) Direction Period (s) | SW 17 | SW 16 | SW 15 | SW 15 | SW 14 | SSW 8 | SW 16 | SW 16 | SW 16 | SW 16 | SW 15 | SW 14 | SW 14 | SW 17 | WSW 17 | SW 16 | SW 16 | SW 15 | SW 14 | SW 14 |
5733 | 3903 | 2418 | 2146 | 1083 | 334 | 3761 | 3937 | 3097 | 2374 | 1563 | 1290 | 1426 | 2136 | 2242 | 2160 | 1933 | 1325 | 1094 | 1049 | |
Swell 2 Height (m) Direction Period (s) | — | W 21 | WSW 19 | NW 10 | WSW 18 | SW 13 | — | — | — | — | W 23 | WSW 21 | WSW 19 | — | — | — | — | — | — | — |
— | 329 | 627 | 4 | 443 | 488 | — | — | — | — | 43 | 153 | 804 | — | — | — | — | — | — | — | |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | WSW 16 | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
— | — | — | — | — | 518 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Wind waves Height (m) Direction Period (s) | — | — | — | — | SSW 5 | SE 5 | SE 5 | SE 5 | ESE 5 | — | SSE 4 | SE 5 | S 3 | S 4 | S 5 | — | — | — | SW 4 | — |
— | — | — | — | 46 | 73 | 37 | 63 | 40 | — | 21 | 6 | 2 | 16 | 10 | — | — | — | 10 | — | |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 25 | 25 | 241 | 1694 | 25 | 792 | 792 | 424 | 521 | 7 | 521 | 521 | 424 | 25 | 0 | 251 | 521 | 7 | 556 | 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.











