Surf Forecasts:
Turtles surf forecast from 5 Sep 2026:
- Best quality surf: Thursday 10 Sep, 8AM (local time) - 6ft (1.8m), 16s period, WSW swell with offshore winds.
- Most powerful swell: Monday 7 Sep, 11AM (local time) - 10ft (3.0m), 17s period, SW swell with 5,248 kJ wave energy.
- Next surfable swell (1★+): Thursday 10 Sep, 8AM (local time) - 6ft (1.8m), 16s 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 Thursday (Sep 10) at 8AM. The primary swell is predicted to be 1.8m and 16s period with a secondary swell of 0.5m and 5s. 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 Monday (Sep 07) 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 1.4m 6s period and expected on Tuesday (Sep 08) at 2PM.
| Wave Type | Time (AWST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 8AM (Thu 10th Sep) | 6ft (1.8m) 16s |
| Best Surf | 8AM (Thu 10th Sep) | 6ft (1.8m) 16s |
| Most Powerful | 11AM (Mon 7th Sep) | 10ft (3.0m) 17s |
Table - best surf conditions forecast for Turtles over the next 16 days.
The Lowdown
Alright, Rusty here. Let’s talk about what’s cooking at Turtles.
Right out of the gate, it’s pretty rough out there. That’s a solid 8ft south-west swell hitting this exposed reef, but with the wind howling out of the WSW at 19 mph, it’s a lumpy, cross-onshore mess. Not worth paddling out. The first couple of days are a write-off. Saturday afternoon is a no-go, and Sunday is even uglier with 13ft of south-west swell and even stronger, cross-shore winds.
We’ve got a bit of a wait. The first real chance to even think about it is Monday morning, the 7th of September. The swell drops back to a clean 10ft from the south-west, and the wind shifts to a cross-offshore from the SSE at 19 mph. It’s a long-period groundswell, 17 seconds, packing some serious energy (5248). For a spot like this, a reef setup, that long period is a good thing—it’ll unload with power. It’s still big, only for the experienced crew. Water temp is 72°, pretty normal for this time of year.
The standout is shaping up for Thursday morning, the 10th of September. We’re looking at 6ft of WSW swell, and get this – glassy conditions. Absolute glass. Wind is a whisper from the NE at 3 mph. The reef will be clean and lined up, and the combined energy is a healthy 1580. That’s the one to circle on the calendar for an early session.
Saturday morning, the 12th of September, is another one that’ll get the heart going. Picking up a bit more size at 6ft from the WSW, and again, glassy, calm wind. That’s a very strong contender. After that, it gets patchy. Monday the 14th has a clean, 7ft south-west swell with a light cross-offshore breeze, but conditions get lumpy again later in the day.
Late in the run, around the weekend of the 19th and 20th, we see another pulse of energy, but the wind is messy, cross-onshore. Those 10ft swells are just going to be chunky and chopped. Not the one.
So for this stretch, the true standouts are Thursday morning, September 10th, and Saturday morning, September 12th. Both offer that rare combo of decent-sized, clean groundswell with perfect, glassy conditions. This is an advanced break, so it’s not a beginner’s party. But for the crew who know the reef, those mornings will be firing.
Rusty.
Short Range ForecastSome drizzle, heaviest during Sat night. Warm (max 23°C on Mon afternoon, min 16°C on Mon morning). Mainly strong winds. | Days 5-7 Weather SummaryMostly dry. Warm (max 27°C on Wed afternoon, min 16°C on Tue night). Winds decreasing (strong winds from the SE on Tue night, calm by Thu morning). | |||||||||||||||||||
Sat 5 | Sunday 6 | Monday 7 | Tuesday 8 | Wednesday 9 | Thursday 10 | Friday 11 | ||||||||||||||
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 14 | SW 14 | SW 12 | SW 13 | SW 13 | SW 17 | WSW 16 | WSW 16 | SW 16 | WSW 15 | WSW 16 | SW 16 | WSW 16 | WSW 15 | WSW 15 | WSW 15 | WSW 14 | WSW 14 | WSW 14 | W 19 |
Wave Graph  | ||||||||||||||||||||
 kJ | 2457 | 4191 | 4349 | 3871 | 2892 | 5248 | 3256 | 2206 | 2325 | 1527 | 2027 | 2173 | 2007 | 1578 | 1567 | 1102 | 785 | 621 | 545 | 1059 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross | cross | cross-off | cross-off | cross | cross-off | cross-off | cross-off | cross-off | off | cross-off | cross-off | glassy | on | cross | cross-on | on | cross-off |
High Tide | 3:56PM0.55m | 3:12AM1.16m | 4:33AM1.09m | 6:19AM1.06m | 9:36PM0.72m | 7:52AM1.07m | 9:47PM0.83m | 9:01AM1.09m | 10:08PM0.94m | 9:56AM1.09m | 10:33PM1.05m | |||||||||
Low Tide | 7:19PM0.48m | 11:51AM0.31m | 1:41PM0.28m | 2:40PM0.24m | 1:25AM0.64m | 3:19PM0.21m | 2:52AM0.52m | 3:51PM0.21m | 3:48AM0.39m | 4:18PM0.23m | 4:33AM0.28m | |||||||||
 |  |  | |  | | | | | | | | | | | | | | | | |
 | — | — | 6:33 | — | — | 6:31 | — | — | 6:31 | — | — | 6:30 | — | — | 6:28 | — | — | 6:28 | — | — |
 | 6:15 | — | — | 6:15 | — | — | 6:15 | — | — | 6:16 | — | — | 6:16 | — | — | 6:16 | — | — | 6:17 | — |
mm | — | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 20 | 20 | 20 | 21 | 19 | 20 | 23 | 22 | 20 | 25 | 23 | 20 | 27 | 26 | 23 | 23 | 21 | 21 | 22 | 21 |
Feels °C | 14 | 14 | 12 | 13 | 12 | 14 | 17 | 16 | 12 | 19 | 14 | 13 | 23 | 21 | 22 | 20 | 20 | 21 | 20 | 20 |
Swell 1 Height (m) Direction Period (s) | SW 14 | — | SW 12 | SW 13 | SW 13 | SW 17 | WSW 16 | WSW 16 | SW 16 | WSW 15 | WSW 16 | SW 16 | WSW 16 | WSW 15 | WSW 15 | WSW 15 | WSW 14 | WSW 14 | WSW 14 | W 19 |
| kJ | 2457 | — | 4349 | 3871 | 2892 | 5248 | 3256 | 2206 | 2325 | 1527 | 2027 | 2173 | 2007 | 1578 | 1567 | 1102 | 785 | 621 | 545 | 1059 |
Swell 2 Height (m) Direction Period (s) | — | — | W 22 | WSW 21 | WSW 20 | — | — | SSW 8 | — | — | S 6 | — | — | — | W 26 | W 24 | W 24 | W 22 | W 20 | WSW 14 |
| kJ | — | — | 9 | 87 | 507 | — | — | 253 | — | — | 86 | — | — | — | 13 | 44 | 97 | 236 | 299 | 545 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | SW 4 | SW 14 | — | — | S 7 | SE 5 | SSW 6 | SE 4 | SE 5 | S 6 | SE 4 | ESE 4 | — | SSE 5 | — | — | — | N 3 | NNW 4 | NW 4 |
| kJ | 15 | 4191 | — | — | 233 | 31 | 148 | 49 | 63 | 144 | 45 | 24 | — | 40 | — | — | — | 6 | 9 | 11 |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 1275 | 424 | 1080 | 980 | 920 | 545 | 980 | 424 | 1091 | 907 | 521 | 1124 | 25 | 535 | 0 | 796 | 25 | 1163 | 1281 | 0 |
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.
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