Surf Forecasts:
Turtles surf forecast from 4 Sep 2026:
- Best quality surf: Wednesday 9 Sep, 2PM (local time) - 6.5ft (2.0m), 16s period, WSW swell with offshore winds.
- Most powerful swell: Monday 7 Sep, 11AM (local time) - 8ft (2.5m), 17s period, SW swell with 4,393 kJ wave energy.
- Next surfable swell (1★+): Wednesday 9 Sep, 2PM (local time) - 6.5ft (2.0m), 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 Wednesday (Sep 09) at 2PM. The primary swell is predicted to be 2.0m 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 2.5m 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 1.2m 5s period and expected on Monday (Sep 07) at 2AM.
| Wave Type | Time (AWST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 2PM (Wed 9th Sep) | 6.5ft (2.0m) 16s |
| Best Surf | 2PM (Wed 9th Sep) | 6.5ft (2.0m) 16s |
| Most Powerful | 11AM (Mon 7th Sep) | 8ft (2.5m) 17s |
Table - best surf conditions forecast for Turtles over the next 16 days.
The Lowdown
Alright guys, Rusty here. Let’s break down what’s coming. The start is a bit of a rough one, but if you hang tight, there’s some real magic a little further out.
The first few days are a bust. Friday morning (4th September) brings a 6ft SW swell, but there’s a 20 km/h S cross-shore wind making a lumpy mess. The water’s about 72°, which is normal for this time of year. The energy is moderate (1517), but it’s not worth it. That afternoon and Saturday are worse, with bigger 8ft surf and strong cross-on winds. Sunday is a full-on 12ft mess with 40 km/h winds – that’s kite-surfing weather, not paddling.
Monday 7th September is the first real chance. The swell drops to 8ft from the SW, but the wind cleans up to a 35 km/h SE cross-off. The combined energy is strong (4393), and with a 17-second period, this is a proper groundswell. That long period means more power and better shape, but longer waits between sets. This is for the experts only – over 8ft is no joke. The reef will be handling it well.
Wednesday 9th September morning is a standout. The swell is 7ft from the WSW, but the wind is offshore from the E at 30 km/h. That’s a clean, fresh offshore breeze, and the energy is strong (1953). The period is a very long 16 seconds, so this is a proper groundswell. This is the session to aim for. The reef at Turtles will be firing with clean, lined-up waves. The wind stays light on Thursday 10th September morning, with a 6ft swell and a light ESE breeze, making for excellent conditions.
There’s a bit of a lull around the 11th and 13th, with smaller swells and bumpy wind. But Saturday 12th September morning offers a 8ft WSW swell with a 17-second period and a light WNW offshore wind. That’s a very long period groundswell again, and the reef will love it. The energy is strong (3216). This is a top pick for the second week.
Looking further ahead, Monday 14th to Wednesday 16th September mornings bring clean cross-off or offshore winds with 8ft to 6ft SW swells, but the real gem is Thursday 17th September morning. It’s a small 3ft swell from the WSW with a 16-second period and a 20 km/h offshore ENE wind. The energy is moderate (1129), but the conditions are clean. That’s a sneaky good day for a log.
Finally, Friday 18th September morning is a beauty. The swell is 6ft from the WSW with a 16-second period, and the wind is glassy – a perfect 5 km/h from the NNW. That’s as clean as it gets. The energy is moderate (1864), but the glassy surface will make the waves look like silk. This is a morning to remember.
So, the best on offer is Wednesday 9th September morning, with Friday 18th September morning a close second. Get out there.
Rusty.
Short Range ForecastMostly dry. Warm (max 21°C on Fri morning, min 16°C on Sat morning). Winds increasing (light winds from the SSE on Sat morning, near gales from the SSW by Sat night). | Days 4-6 Weather SummaryMostly dry. Warm (max 26°C on Wed afternoon, min 16°C on Mon morning). Winds decreasing (strong winds from the S on Mon night, light winds from the ESE by Wed afternoon). | ||||||||||||||||||||
Friday 4 | Saturday 5 | Sunday 6 | Monday 7 | Tuesday 8 | Wednesday 9 | Thursday 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) | SW 14 | SW 14 | SW 13 | SW 16 | SW 14 | SW 14 | SW 13 | SW 13 | SW 13 | SW 17 | SW 16 | WSW 16 | SW 16 | SW 15 | WSW 17 | WSW 16 | WSW 16 | WSW 15 | WSW 15 | WSW 15 | WSW 14 |
Wave Graph  | |||||||||||||||||||||
 kJ | 1491 | 1330 | 846 | 3178 | 2457 | 4005 | 3563 | 3440 | 3001 | 4393 | 3721 | 2206 | 1933 | 1708 | 2097 | 1953 | 1928 | 1578 | 1488 | 1314 | 886 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross | cross-off | cross-on | cross-on | cross-on | cross | cross | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | off | cross-off | cross-off | cross-off | cross-on | cross-off |
High Tide | 2:40PM0.64m | 2:17AM1.21m | 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 | ||||||||||
Low Tide | 8:43AM0.24m | 7:04PM0.43m | 9:55AM0.29m | 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 | |||||||||
 |  |  | | |  | | | | | | | | | | | | | | | | |
 | 6:35 | — | — | 6:33 | — | — | 6:33 | — | — | 6:31 | — | — | 6:31 | — | — | 6:30 | — | — | 6:28 | — | — |
 | — | 6:15 | — | — | 6:15 | — | — | 6:15 | — | — | 6:15 | — | — | 6:16 | — | — | 6:16 | — | — | 6:16 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 21 | 21 | 20 | 19 | 19 | 20 | 20 | 21 | 19 | 21 | 25 | 20 | 20 | 25 | 24 | 20 | 26 | 25 | 23 | 24 | 21 |
Feels °C | 19 | 16 | 16 | 17 | 15 | 14 | 12 | 13 | 12 | 14 | 18 | 13 | 12 | 18 | 19 | 14 | 22 | 20 | 21 | 21 | 17 |
Swell 1 Height (m) Direction Period (s) | SW 14 | SW 14 | SW 13 | SW 16 | SW 14 | — | SW 13 | WSW 21 | SW 13 | SW 17 | SW 16 | WSW 16 | SW 16 | SW 15 | WSW 17 | WSW 16 | WSW 16 | WSW 15 | WSW 15 | WSW 15 | WSW 14 |
| kJ | 1491 | 1330 | 846 | 3178 | 2457 | — | 3563 | 89 | 3001 | 4393 | 3721 | 2206 | 1933 | 1708 | 2097 | 1953 | 1928 | 1578 | 1488 | 1314 | 886 |
Swell 2 Height (m) Direction Period (s) | — | WSW 18 | WSW 16 | — | — | — | W 22 | — | WSW 19 | — | — | SSW 7 | — | — | SSW 6 | — | — | — | S 7 | W 24 | W 24 |
| kJ | — | 184 | 604 | — | — | — | 9 | — | 637 | — | — | 129 | — | — | 93 | — | — | — | 21 | 44 | 44 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | W 26 | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 13 | — | — |
Wind waves Height (m) Direction Period (s) | SSW 5 | SSW 4 | SSW 5 | — | SW 4 | SW 14 | — | SW 13 | SSE 5 | SE 4 | — | S 7 | ESE 4 | S 4 | SE 4 | ESE 4 | — | S 5 | ENE 4 | — | S 4 |
| kJ | 26 | 22 | 37 | — | 15 | 4005 | — | 3440 | 61 | 24 | — | 196 | 19 | 29 | 18 | 16 | — | 52 | 5 | — | 10 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 1693 | 1073 | 424 | 241 | 1275 | 1277 | 1693 | 1059 | 920 | 424 | 902 | 25 | 424 | 241 | 422 | 1059 | 7 | 521 | 0 | 845 | 422 |
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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