
Surf Forecasts:
Turtles surf forecast from 10 Sep 2026:
- Best quality surf: Saturday 12 Sep, 5AM (local time) - 6ft (1.8m), 18s period, WSW swell with cross-offshore winds.
- Most powerful swell: Saturday 12 Sep, 11AM (local time) - 7ft (2.1m), 17s period, WSW swell with 2,605 kJ wave energy.
- Next surfable swell (1★+): Friday 11 Sep, 5AM (local time) - 4.5ft (1.4m), 14s 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 Friday (Sep 11) at 5AM. The primary swell is predicted to be 1.4m and 14s period with a secondary swell of 0.4m and 22s. 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 2.1m 17s and forecast to arrive on Saturday (Sep 12) at 11AM. Winds are predicted to be glassy at the time the swell arrives.
| Wave Type | Time (AWST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 5AM (Fri 11th Sep) | 4.5ft (1.4m) 14s |
| Best Surf | 5AM (Sat 12th Sep) | 6ft (1.8m) 18s |
| Most Powerful | 11AM (Sat 12th Sep) | 7ft (2.1m) 17s |
Table - best surf conditions forecast for Turtles over the next 16 days.
The Lowdown
Alright, grab your coffee. This is Rusty.
We’ve got our eyes on a single spot this whole outlook, Turtles, and it's a tricky beast. It's an advanced, exposed reef break that needs specific conditions to fire. The good news is there are a couple of golden windows in the mix, but you’re going to be fighting the wind for most of the 16-day run.
The water temperature here is 71°F, which is bang on normal for the time of year, so no surprises on that front.
Alright, let's get into it. Thursday the 10th morning is actually a solid start. We have a clean 6ft WSW swell, with a very long period of 15 seconds pushing through. The combined swell energy is strong at 1322, and that light NE cross-offshore wind is going to groom it beautifully. This is a window for the experienced crew to get some clean, powerful waves. The afternoon, however, turns to junk as wind swings onshore.
We get a full day of onshore slop on Friday the 11th. Just leave it, nothing to see here.
Then comes the stand-out. Saturday morning, the 12th of September. This is the one to circle. The wind goes glassy, dead calm, and the swell jumps to a clean 7ft from the WSW with a 17-second period. The combined energy is a massive 2605. This is big, powerful wave energy. Because it's a reef break with that long period, the sets will be well-spaced and lined up, but at over 8ft this is strictly for experts only. That morning session will be absolute magic, but the crowd factor is going to be an issue because everyone knows it, and it’s often crowded. The afternoon gets wrecked by a strong cross-onshore, so make sure you’re in the water early.
From Sunday the 13th all the way through Friday the 25th of September, it’s a frustrating pattern. We have consistent swell, often ranging from 6ft to a very solid 8ft, but the wind is almost always cross, cross-on, or just plain strong. The morning of Wednesday the 16th gives you a little hope with a light cross-on breeze and a 7ft swell, but it’s marginal. The weekend of the 19th and 20th sees the swell building back to a powerful 8ft, but the wind just won't cooperate, bringing a lot of chop.
The last real glimpse of something clean happens on the morning of Monday the 22nd of September, with an 8ft SW swell packing a massive 3182 combined energy. It’s a monster, but the wind is a moderate cross-shore, which will put a chop on the face. It’s a big, lumpy challenge for the experts, but not the perfection we saw on the 12th.
In the end, if you only get one session, make it the morning of Saturday the 12th of September at Turtles. Bring your A-game and your patience for the crowd.
Rusty.
Short Range ForecastMostly dry. Warm (max 24°C on Thu afternoon, min 18°C on Sat morning). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Warm (max 22°C on Sun afternoon, min 18°C on Sun night). Winds decreasing (fresh winds from the SSW on Sun afternoon, light winds from the WSW by Wed morning). | |||||||||||||||||||
Thu 10 | Friday 11 | Saturday 12 | Sunday 13 | Monday 14 | Tuesday 15 | Wednesday 16 | ||||||||||||||
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 15 | WSW 14 | WSW 15 | WSW 14 | WSW 19 | WSW 17 | WSW 16 | WSW 16 | WSW 15 | WSW 14 | WSW 14 | WSW 15 | SW 15 | WSW 14 | SW 15 | SW 14 | WSW 14 | SW 14 | WSW 14 | SW 16 |
Wave Graph | ||||||||||||||||||||
1038 | 785 | 656 | 742 | 1406 | 2605 | 2133 | 1684 | 1328 | 1435 | 1504 | 1721 | 1914 | 1310 | 2173 | 2114 | 1644 | 1449 | 1034 | 1412 | |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | cross | on | on | cross-on | glassy | cross-on | cross | cross | cross-on | cross | cross | cross-on | cross | cross-on | cross-on | cross | on | cross-on | cross |
High Tide | 10:08PM0.94m | 9:56AM1.09m | 10:33PM1.05m | 10:42AM1.07m | 10:58PM1.14m | 11:23AM1.02m | 11:25PM1.21m | 12:00PM0.96m | 11:52PM1.24m | 12:35PM0.88m | 00:19AM1.24m | 1:07PM0.80m | 00:46AM1.20m | |||||||
Low Tide | 3:51PM0.21m | 3:48AM0.39m | 4:18PM0.23m | 4:33AM0.28m | 4:43PM0.26m | 5:14AM0.20m | 5:06PM0.29m | 5:52AM0.16m | 5:28PM0.33m | 6:28AM0.15m | 5:49PM0.36m | 7:04AM0.18m | 6:08PM0.39m | |||||||
— | — | 6:28 | — | — | 6:26 | — | — | 6:26 | — | — | 6:24 | — | — | 6:24 | — | — | 6:22 | — | — | |
6:16 | — | — | 6:17 | — | — | 6:17 | — | — | 6:17 | — | — | 6:19 | — | — | 6:19 | — | — | 6:19 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 24 | 22 | 22 | 22 | 21 | 22 | 21 | 20 | 22 | 22 | 20 | 22 | 21 | 20 | 20 | 20 | 20 | 21 | 21 | 20 |
Feels °C | 20 | 20 | 20 | 19 | 17 | 22 | 17 | 16 | 20 | 18 | 16 | 20 | 17 | 17 | 18 | 16 | 17 | 22 | 18 | 18 |
Swell 1 Height (m) Direction Period (s) | WSW 15 | WSW 14 | WSW 15 | WSW 14 | WSW 19 | WSW 17 | WSW 16 | WSW 16 | WSW 15 | WSW 14 | WSW 14 | WSW 15 | SW 15 | WSW 14 | SW 15 | SW 14 | WSW 14 | SW 14 | WSW 14 | SW 16 |
1038 | 785 | 656 | 742 | 1406 | 2605 | 2133 | 1684 | 1328 | 1435 | 1504 | 1721 | 1914 | 1310 | 2173 | 2114 | 1644 | 1449 | 1034 | 1412 | |
Swell 2 Height (m) Direction Period (s) | W 24 | W 24 | W 22 | W 20 | WSW 14 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
44 | 98 | 335 | 388 | 732 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Wind waves Height (m) Direction Period (s) | — | — | — | — | SW 4 | — | — | — | S 4 | SSW 4 | SSW 6 | SSW 6 | — | SSW 5 | — | — | SSW 4 | — | SSW 4 | — |
— | — | — | — | 12 | — | — | — | 7 | 25 | 94 | 100 | — | 69 | — | — | 36 | — | 21 | — | |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 424 | 7 | 251 | 1163 | 1275 | 0 | 1281 | 424 | 7 | 1281 | 541 | 25 | 1059 | 866 | 545 | 1059 | 422 | 241 | 1163 | 7 |
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.










