
Surf Forecasts:
Turtles surf forecast from 4 Aug 2026:
- Best quality surf: Thursday 6 Aug, 5PM (local time) - 8ft (2.5m), 16s period, WSW swell with cross-offshore winds.
- Most powerful swell: Sunday 9 Aug, 11AM (local time) - 10ft (3.0m), 17s period, SW swell with 5,667 kJ wave energy.
- Next surfable swell (1★+): Wednesday 5 Aug, 2AM (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 2AM. The primary swell is predicted to be 2.1m and 17s period with a secondary swell of 0.6m and 5s. 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 11AM. 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 Sunday (Aug 09) at 5AM.
| Wave Type | Time (AWST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 2AM (Wed 5th Aug) | 7ft (2.1m) 17s |
| Best Surf | 5PM (Thu 6th Aug) | 8ft (2.5m) 16s |
| Most Powerful | 11AM (Sun 9th Aug) | 10ft (3.0m) 17s |
Table - best surf conditions forecast for Turtles over the next 16 days.
The Lowdown
G’day, Rusty here. We’ve got a solid 16-day window ahead, but it’s not a straight-up free-for-all. The first few days are a bit of a warm-up before the real juice kicks in. There’s a gap with no real recommendations until we hit Thursday, August 6th, so don’t rush out the door just yet.
Alright, let’s talk about the main event. The standout for the whole run is Turtles (a reef break, advanced only). This spot is exposed to the swell, and it’s fairly consistent—so when it’s on, it’s on. The water temp is sitting at 74°, which is about 1° above normal for this time of year, so nothing wild there, just your average warm bath.
The real magic starts shaping up on Thursday, August 6th morning. We’ve got a solid 8 ft swell hammering in from the WSW, with a long 16-second period—pure groundswell, full of energy. The combined energy reading is 3548 (moderate-strong), so you’ll feel the push. The wind is a gentle SSE breeze, cross-offshore, which will keep the surface clean. This is proper advanced territory; 8 ft is pushing into expert-only water, so leave the foamies at home.
But the absolute crown jewel? That’s Sunday, August 16th morning. Mark it. Glassy conditions with the wind dropping to 3 mph from the east, almost nothing. The swell is a solid 10 ft from the WSW, with a 17-second period—very long period groundswell. Combined energy hits 4707 (strong). This is the kind of day where Turtles turns into a bowling alley for those who know what they’re doing. The swell direction is right in the sweet spot for this break (SSW optimum), so expect those lines to stand up and pitch. Just know that with a long period like this, the sets will be spaced out, and it’ll be a bit straight at the takeoff—perfect for a reef setup like this.
There’s another promising morning on Wednesday, August 19th with glassy conditions again (NW 3 mph) and a 10 ft WSW swell, 16-second period, and energy at 5220 (strong). That’s exceptional wave energy, but it’s for experts only. The wind is offshore in the morning, which will be a dream.
A few other mornings to keep an eye on: Saturday, August 15th morning has 8 ft with a clean SE cross-offshore breeze, but it’s not quite as punchy as the top picks. Tuesday, August 18th morning also has a 10 ft swell, but the wind is cross-off, not glassy, so it’ll be a bit less perfect.
If you’re not an expert, stay away from the 8 ft+ days. The long-period swells here are best for the reef—this isn’t a beach break you can just paddle into. Crowds are “often” at Turtles, so expect company on the good days, especially those Sunday and Wednesday standouts.
The second week is a bit more of a mixed bag. The wind picks up through the middle of the week (fresh breezes), but that clean morning window on the 16th and 19th is worth planning around. The end of the run on the 19th afternoon goes cross-onshore, so get your session in early.
So, in short: the best of the best is Sunday, August 16th morning at Turtles—glassy, 10 ft, 17-second swell, strong energy. Second best is Wednesday, August 19th morning with that glassy offshore wind. Don’t sleep on those.
Stay safe, watch the sets, and I’ll see you in the lineup.
Rusty.
Short Range ForecastHeavy rain (total 22mm), heaviest during Tue afternoon. Warm (max 24°C on Wed afternoon, min 18°C on Tue morning). Winds decreasing (fresh winds from the NE on Tue morning, light winds from the W by Thu night). | Days 4-6 Weather SummaryMostly dry. Warm (max 20°C on Sat morning, min 12°C on Sun morning). Winds increasing (light winds from the SSW on Fri afternoon, strong winds from the SSE by Sat night). | ||||||||||||||||||||
Tuesday 4 | Wednesday 5 | Thursday 6 | Friday 7 | Saturday 8 | Sunday 9 | Monday 10 | |||||||||||||||
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) | WSW 16 | WSW 19 | WSW 17 | WSW 16 | SW 16 | WSW 16 | WSW 16 | WSW 16 | WSW 16 | WSW 16 | WSW 16 | WSW 16 | SW 15 | WSW 15 | SW 15 | SW 17 | SW 17 | SW 17 | SW 16 | SW 15 | SW 14 |
Wave Graph | |||||||||||||||||||||
811 | 1753 | 2594 | 2648 | 2291 | 3100 | 3548 | 3548 | 3024 | 2472 | 2472 | 2410 | 1983 | 1714 | 3352 | 5667 | 5441 | 4845 | 2620 | 1987 | 1147 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross | cross | cross | cross | cross | cross | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off |
High Tide | 1:16PM0.90m | 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 | 7:03PM0.28m | 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 | — | — | 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 | 5 | 10 | 5 | — | — | — | — | — | 2 | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 18 | 19 | 18 | 20 | 24 | 22 | 21 | 22 | 19 | 19 | 19 | 19 | 20 | 20 | 17 | 15 | 19 | 18 | 18 | 21 | 20 |
Feels °C | 14 | 19 | 16 | 18 | 23 | 19 | 19 | 20 | 17 | 18 | 18 | 18 | 14 | 13 | 9 | 7 | 12 | 12 | 11 | 13 | 14 |
Swell 1 Height (m) Direction Period (s) | WSW 16 | WSW 19 | WSW 17 | WSW 16 | SW 16 | WSW 16 | WSW 16 | WSW 16 | WSW 16 | WSW 16 | WSW 16 | WSW 16 | SW 15 | WSW 15 | SW 15 | SW 17 | SW 17 | SW 17 | SW 16 | SW 15 | SW 14 |
811 | 1753 | 2594 | 2648 | 2291 | 3100 | 3548 | 3548 | 3024 | 2472 | 2472 | 2410 | 1983 | 1714 | 3352 | 5667 | 5441 | 4845 | 2620 | 1987 | 1147 | |
Swell 2 Height (m) Direction Period (s) | W 21 | — | N 5 | NNE 5 | — | — | — | — | — | WNW 13 | NW 12 | NW 11 | NW 11 | NW 11 | NW 11 | WNW 10 | NW 10 | W 21 | WSW 19 | WSW 19 | WSW 18 |
227 | — | 15 | 10 | — | — | — | — | — | 16 | 23 | 32 | 30 | 29 | 18 | 10 | 4 | 329 | 502 | 74 | 352 | |
Swell 3 Height (m) Direction Period (s) | W 12 | — | — | — | — | — | — | — | — | — | — | — | — | — | NW 11 | — | — | — | — | — | SSW 6 |
3 | — | — | — | — | — | — | — | — | — | — | — | — | — | 18 | — | — | — | — | — | 33 | |
Wind waves Height (m) Direction Period (s) | N 5 | N 5 | — | — | — | — | — | S 4 | — | — | — | — | SSW 5 | SSW 6 | SE 5 | SE 5 | — | S 5 | SE 4 | SSE 4 | SSE 5 |
50 | 37 | — | — | — | — | — | 17 | — | — | — | — | 40 | 223 | 56 | 41 | — | 55 | 19 | 28 | 59 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 424 | 1281 | 0 | 7 | 25 | 241 | 0 | 1281 | 241 | 25 | 25 | 1693 | 1693 | 1713 | 424 | 25 | 251 | 422 | 424 | 1281 | 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.











