
Surf Forecasts:
Turtles surf forecast from 10 Aug 2026:
- Best quality surf: Thursday 13 Aug, 2PM (local time) - 6ft (1.8m), 14s period, SW swell with offshore winds.
- Most powerful swell: Tuesday 11 Aug, 11PM (local time) - 10ft (3.0m), 16s period, SW swell with 3,937 kJ wave energy.
- Next surfable swell (1★+): Thursday 13 Aug, 2PM (local time) - 6ft (1.8m), 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 Thursday (Aug 13) at 2PM. The primary swell is predicted to be 1.8m and 14s 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 16s and forecast to arrive on Tuesday (Aug 11) at 11PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.3m 5s period and expected on Tuesday (Aug 11) at 8AM.
| Wave Type | Time (AWST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 2PM (Thu 13th Aug) | 6ft (1.8m) 14s |
| Best Surf | 2PM (Thu 13th Aug) | 6ft (1.8m) 14s |
| Most Powerful | 11PM (Tue 11th Aug) | 10ft (3.0m) 16s |
Table - best surf conditions forecast for Turtles over the next 16 days.
The Lowdown
Alright, Rusty here. Let’s have a look at the upcoming swell window.
We’ve got a solid run of surf ahead at Turtles, a heavy reef setup for advanced crew only. The water’s sitting at a pretty standard 73°, just a touch warmer than usual for this time of year – nothing too weird.
The pattern starts off with some decent energy, but the first few days are a bit messy. Monday the 10th kicks off with a 8ft SW groundswell, period a fat 15 seconds, and the combined energy is pumping at (3045). The morning has a clean cross-off breeze, so it’ll look alright, but the afternoon turns to cross-on and chop. Not the best.
Tuesday the 11th sees the swell drop a little to 6ft in the morning, but the wind is howling from the SE at 28 mph – that’s a strong breeze, though it’s cross-off so it keeps the face clean. The period drops to 9 seconds, so it’s a bit weak and wind-affected. Afternoon pushes up to 10ft with a 16-second period (4209), but still the same strong cross-off wind. Hard work.
Wednesday the 12th is where it starts to get interesting. Morning has a clean 8ft SW groundswell at 16 seconds (3097) with offshore wind from the ESE at 25 mph. That’s strong offshore, so the waves will be clean but tough to paddle into. Afternoon eases to 8ft and the wind drops to a fresh 19 mph offshore – much more manageable. Still, it’s a reef and it’s big, so only for the experienced.
Thursday the 13th hangs in there with 6ft to 6ft SW groundswell, clean conditions, and offshore or cross-off breezes. Good, but not epic.
Now, Friday the 14th morning is a real standout. You’ve got a 7ft SW groundswell with a very long 17-second period (2565) and offshore wind from the ESE at 16 mph. That’s a moderate offshore, clean, and that long period means the waves will have real shape and power. This is the pick of the first week – excellent conditions for experienced surfers.
Saturday the 15th morning is another good one: 6ft SW groundswell, 15-second period (1361), gentle offshore from the east. Clean, fun, but smaller.
Sunday the 16th morning brings a glassy, calm session with 5ft SW groundswell (630). The wind is dead calm. Perfect conditions for a smooth session, but the swell is small. The afternoon turns to crap with cross-on wind.
Into the second week, things get bigger again but wind becomes a problem. Monday the 17th and Tuesday the 18th see 6ft to 10ft WSW groundswell, but it’s cross-on or onshore wind. The energy is massive (up to 4604), but the quality is poor for paddling. Honestly, with that much swell and strong onshore wind at a reef, this setup looks more interesting for kite surfing than paddle surfing.
The true standout of the whole forecast is Wednesday the 19th morning. Glassy conditions, 8ft WSW groundswell with a 16-second period (3426), and a slight air from the south. That is an exceptional window for advanced surfers – clean, powerful, and lined up.
After that, the swell stays big (10ft) but the wind turns cross-on and fresh from the SW through Thursday the 20th and Friday the 21st. The last few days from the 22nd to the 25th see the swell pulse again, with the morning of the 25th offering another potential highlight: 10ft SW groundswell (3548) with a gentle cross-off breeze from the SSE. Clean, big, and for experts only.
So, overall: Friday the 14th morning and Wednesday the 19th morning are your two best shots at Turtles. The rest is either too windy, too big with bad wind, or just average.
Rusty.
Short Range ForecastMostly dry. Warm (max 21°C on Wed afternoon, min 11°C on Wed morning). Winds increasing (light winds from the SE on Mon morning, strong winds from the SE by Tue morning). | Days 4-6 Weather SummaryMostly dry. Warm (max 26°C on Sat afternoon, min 15°C on Thu morning). Winds increasing (light winds from the S on Fri afternoon, fresh winds from the S by Sat night). | ||||||||||||||||||||
Monday 10 | Tuesday 11 | Wednesday 12 | Thursday 13 | Friday 14 | Saturday 15 | Sunday 16 | |||||||||||||||
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 15 | SW 15 | SW 14 | SSW 10 | SW 16 | SW 16 | SW 16 | SW 16 | SW 15 | SW 14 | SW 15 | SW 17 | SW 17 | SW 16 | SW 16 | SW 15 | SW 14 | SW 14 | SW 13 | SW 13 | WSW 16 |
Wave Graph | |||||||||||||||||||||
2418 | 2146 | 1083 | 688 | 3715 | 3937 | 2941 | 2668 | 1563 | 1402 | 1542 | 2136 | 2595 | 2228 | 1822 | 1421 | 1382 | 865 | 632 | 613 | 1498 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross-on | cross-off | cross-off | cross-off | cross-off | off | cross-off | cross-off | off | cross-off | cross-off | off | cross | cross-off | off | cross-on | cross-off | cross-off | cross-on | cross-on |
High Tide | 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 | 12:14PM1.05m | 00:39AM1.17m | |||||||||
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 | 6:09AM0.29m | 6:12PM0.23m | |||||||||
6:56 | — | — | 6:56 | — | — | 6:54 | — | — | 6:54 | — | — | 6:52 | — | — | 6:52 | — | — | 6:52 | — | — | |
— | 6:06 | — | — | 6:07 | — | — | 6:07 | — | — | 6:07 | — | — | 6:07 | — | — | 6:07 | — | — | 6:08 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 17 | 19 | 18 | 15 | 19 | 18 | 15 | 21 | 21 | 19 | 23 | 22 | 22 | 25 | 23 | 24 | 26 | 23 | 24 | 26 | 22 |
Feels °C | 12 | 14 | 14 | 5 | 9 | 9 | 6 | 13 | 14 | 12 | 17 | 16 | 14 | 20 | 17 | 18 | 23 | 18 | 18 | 21 | 20 |
Swell 1 Height (m) Direction Period (s) | SW 15 | SW 15 | SW 14 | SSW 10 | SW 16 | SW 16 | SW 16 | SW 16 | SW 15 | SW 14 | SW 15 | SW 17 | SW 17 | SW 16 | SW 16 | SW 15 | SW 14 | SW 14 | SW 13 | SW 13 | WSW 16 |
2418 | 2146 | 1083 | 688 | 3715 | 3937 | 2941 | 2668 | 1563 | 1402 | 1542 | 2136 | 2595 | 2228 | 1822 | 1421 | 1382 | 865 | 632 | 613 | 1498 | |
Swell 2 Height (m) Direction Period (s) | WSW 19 | NW 10 | WSW 18 | SW 13 | — | — | — | — | W 23 | WSW 21 | WSW 19 | — | — | — | — | — | — | — | S 6 | SSW 6 | — |
627 | 4 | 352 | 369 | — | — | — | — | 43 | 153 | 804 | — | — | — | — | — | — | — | 31 | 10 | — | |
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 | SE 4 | SE 5 | ENE 4 | NE 4 | SSE 5 | — | S 3 | S 5 | ESE 3 | S 3 | S 5 | — | N 3 | NW 4 |
— | — | 91 | 74 | 38 | 63 | 52 | 17 | 49 | 12 | 5 | 56 | — | 5 | 49 | 3 | 7 | 57 | — | 5 | 17 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 241 | 1694 | 1059 | 792 | 792 | 521 | 521 | 241 | 521 | 521 | 7 | 424 | 0 | 25 | 25 | 0 | 845 | 424 | 0 | 500 | 570 |
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.











