
Surf Forecasts:
Turtles surf forecast from 12 Aug 2026:
- Best quality surf: Wednesday 12 Aug, 5PM (local time) - 7.5ft (2.3m), 16s period, SW swell with offshore winds.
- Most powerful swell: Tuesday 18 Aug, 2PM (local time) - 11ft (3.5m), 17s period, WSW swell with 5,970 kJ wave energy.
- Next surfable swell (1★+): Wednesday 12 Aug, 5PM (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 5PM. 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 3.5m 17s and forecast to arrive on Tuesday (Aug 18) at 2PM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.1m 5s period and expected on Friday (Aug 14) at 2AM.
| Wave Type | Time (AWST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 5PM (Wed 12th Aug) | 7.5ft (2.3m) 16s |
| Best Surf | 5PM (Wed 12th Aug) | 7.5ft (2.3m) 16s |
| Most Powerful | 2PM (Tue 18th Aug) | 11ft (3.5m) 17s |
Table - best surf conditions forecast for Turtles over the next 16 days.
The Lowdown
Hey folks, Rusty here. Let’s talk about what’s coming our way for the next couple of weeks. We’ve only got one spot on the radar for this whole stretch, and it’s a proper one when it lines up right: Turtles. This is a reef break, so it’s an advanced wave, and it’s pretty picky. It’s been fairly consistent, but don’t expect a full-on session every day. The water’s sitting at about 73°, which is pretty normal for the time of year.
Alright, let’s get into it. We start off with action from Wednesday the 12th of August. Wednesday morning is looking clean with a solid 8ft SW swell, periods hanging around 16 seconds – proper long-period groundswell. This is a lot of wave energy (2941), but it’s also a touch over 8ft, so this is strictly for the crew who know what they’re doing. The E wind is blowing offshore at 22 mph, which is gusty but will keep the faces clean. Wednesday afternoon is even cleaner, with a lighter 12 mph ESE offshore wind and the swell just a touch smaller at 8ft SW. This session is a standout for the experienced surfer: clean, powerful, and consistent.
Thursday the 13th stays on. Morning has a 6ft SW swell with a 16 mph ENE offshore wind, so clean conditions. The swell energy is still moderate (1362). Thursday afternoon, the swell bumps up a bit to 6ft SW, and the wind swings SE at 9 mph, making it a clean cross-off. Good, clean lines on offer.
Friday the 14th, the morning is the one to call. The swell’s up to 7ft SW with a very long 17-second period, and the wind is a gentle 9 mph cross-off. The energy is pumping (2748), and it’ll be clean. The longer period will create some proper walls on the reef, but be ready for the bigger lulls between sets. Friday afternoon gets messy with a 12 mph cross-shore wind, so I’d get out before lunch.
Saturday the 15th is a mixed bag. Saturday morning is a beauty for anyone at that level: 6ft SW, offshore E wind at 12 mph, clean and powerful. That’s a solid session for the advanced crew. Saturday afternoon, the wind swings onshore and it’s over. Sunday the 16th is a write-off with onshore wind, so skip it.
Now, look ahead. Monday the 17th is onshore and not worth paddling out with rain showers. But then we get a treat on Tuesday the 18th. The morning sees a big jump to 10ft WSW swell with 17-second periods, and a clean cross-off from the ESE at 12 mph. The energy is massive (4883), and this is serious, heavy swell. Only for the experts. The afternoon has a cross-onshore at 16 mph, so morning only.
Wednesday the 19th, morning has the same 10ft WSW swell, but the wind is a light cross-shore, so the line-up might be lumpy. Thursday the 20th is another absolute standout. The morning session is a 10ft WSW swell, but the wind turns offshore from the ESE at just 6 mph. That’s glassy, clean conditions with a high energy (4410). This is one of the best windows in the whole outlook. Friday the 21st is blown out with strong south winds.
Moving into the second week, things get more uncertain but still have some fire. Saturday the 22nd, both morning and afternoon have solid 10ft SW swell with good cross-off winds, so it will be clean and very powerful. Sunday the 23rd gets messier with cross-shore winds. Monday the 24th is smaller, with a clean cross-off in the morning but the wind picks up badly in the afternoon. Tuesday the 25th is small, and by Wednesday the 26th and Thursday the 27th, the swell drops right off to around 3ft to 5ft, but the period is famously long. The energy is low, and the winds are mostly onshore or cross-on, so the surf quality will be poor.
Bottom line: The absolute standouts in this 16-day run are Wednesday morning the 12th for the combo of big, clean swell, and Thursday morning the 20th for the glassy, offshore conditions on a 10ft WSW swell. If you’re an experienced surfer, these are the windows you want to be planning around. Turtles can get pretty busy when it’s good, so be ready for a crowd on those peak days.
Stay safe out there.
Rusty.
Short Range ForecastMostly dry. Warm (max 24°C on Fri afternoon, min 11°C on Wed morning). Winds decreasing (fresh winds from the E on Wed morning, light winds from the S by Fri afternoon). | Days 4-6 Weather SummaryLight rain (total 2mm), mostly falling on Mon morning. Warm (max 26°C on Sat afternoon, min 18°C on Sat morning). Winds increasing (calm on Sat afternoon, fresh winds from the NW by Sun afternoon). | ||||||||||||||||||||
Wednesday 12 | Thursday 13 | Friday 14 | Saturday 15 | Sunday 16 | Monday 17 | Tuesday 18 | |||||||||||||||
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 16 | SW 15 | SW 15 | SW 15 | SW 17 | SW 17 | SW 16 | SW 16 | SW 15 | SW 14 | SW 14 | SW 13 | SW 13 | WSW 16 | WSW 15 | WSW 16 | WSW 17 | WSW 17 | WSW 16 | WSW 16 |
Wave Graph | |||||||||||||||||||||
2941 | 2516 | 1563 | 1212 | 1486 | 2111 | 2716 | 2269 | 1672 | 1325 | 1094 | 890 | 769 | 494 | 1608 | 2055 | 2136 | 2388 | 4883 | 5861 | 5133 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | off | cross-off | off | cross-off | cross-off | cross-off | cross | cross-off | off | cross-on | cross-off | cross-on | cross-on | cross-on | on | on | cross | cross-off | cross-on | cross-off |
High Tide | 8:52AM1.22m | 10:51PM0.81m | 9:53AM1.22m | 11:16PM0.92m | 10:45AM1.19m | 11:43PM1.02m | 11:31AM1.13m | 00:11AM1.11m | 12:14PM1.05m | 00:39AM1.17m | 12:53PM0.94m | 1:08AM1.19m | 1:30PM0.84m | 1:37AM1.19m | |||||||
Low Tide | 4:21PM0.08m | 3:31AM0.52m | 4:54PM0.09m | 4:31AM0.42m | 5:22PM0.13m | 5:22AM0.34m | 5:48PM0.18m | 6:09AM0.29m | 6:12PM0.23m | 6:54AM0.26m | 6:33PM0.29m | 7:37AM0.27m | 6:52PM0.34m | ||||||||
6:54 | — | — | 6:54 | — | — | 6:52 | — | — | 6:52 | — | — | 6:52 | — | — | 6:50 | — | — | 6:50 | — | — | |
— | 6:07 | — | — | 6:07 | — | — | 6:07 | — | — | 6:07 | — | — | 6:08 | — | — | 6:08 | — | — | 6:08 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 2 | — | — | — | — | — |
Temp °C | 15 | 22 | 22 | 20 | 23 | 21 | 20 | 24 | 23 | 23 | 26 | 23 | 22 | 22 | 21 | 21 | 21 | 21 | 20 | 23 | 20 |
Feels °C | 5 | 15 | 15 | 12 | 18 | 14 | 15 | 20 | 17 | 18 | 24 | 18 | 18 | 18 | 16 | 16 | 18 | 20 | 17 | 22 | 17 |
Swell 1 Height (m) Direction Period (s) | SW 16 | SW 16 | SW 15 | SW 15 | SW 15 | SW 17 | SW 17 | SW 16 | SW 16 | SW 15 | SW 14 | SW 14 | SW 13 | SW 13 | WSW 16 | WSW 15 | WSW 16 | WSW 17 | WSW 17 | WSW 16 | WSW 16 |
2941 | 2516 | 1563 | 1212 | 1486 | 2111 | 2716 | 2269 | 1672 | 1325 | 1094 | 890 | 769 | 494 | 1608 | 2055 | 2136 | 2388 | 4883 | 5861 | 5133 | |
Swell 2 Height (m) Direction Period (s) | — | — | W 23 | WSW 21 | NE 4 | — | — | — | — | — | — | — | — | WSW 17 | — | — | W 20 | WSW 6 | — | — | — |
— | — | 43 | 150 | 5 | — | — | — | — | — | — | — | — | 404 | — | — | 500 | 45 | — | — | — | |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | SSW 5 | — | — | — | — | — | — | — |
— | — | — | — | — | — | — | — | — | — | — | — | — | 6 | — | — | — | — | — | — | — | |
Wind waves Height (m) Direction Period (s) | ESE 5 | — | SSE 4 | ENE 4 | — | S 5 | S 6 | — | S 6 | E 3 | — | S 4 | — | NNW 4 | NW 4 | WNW 4 | W 5 | — | — | — | — |
48 | — | 31 | 21 | — | 55 | 32 | — | 94 | 5 | — | 12 | — | 16 | 19 | 25 | 35 | — | — | — | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 521 | 0 | 25 | 521 | 0 | 424 | 7 | 424 | 25 | 0 | 792 | 25 | 243 | 570 | 1233 | 1275 | 1693 | 25 | 7 | 545 | 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.











