Surf Forecasts:
Turtles surf forecast from 6 Sep 2026:
- Best quality surf: Thursday 10 Sep, 8AM (local time) - 6ft (1.8m), 15s period, WSW swell with offshore winds.
- Most powerful swell: Monday 7 Sep, 11AM (local time) - 10ft (3.0m), 17s period, SW swell with 5,016 kJ wave energy.
- Next surfable swell (1★+): Thursday 10 Sep, 8AM (local time) - 6ft (1.8m), 15s 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 15s period with a secondary swell of 0.7m 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 1.3m 5s period and expected on Wednesday (Sep 09) at 2AM.
| Wave Type | Time (AWST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 8AM (Thu 10th Sep) | 6ft (1.8m) 15s |
| Best Surf | 8AM (Thu 10th Sep) | 6ft (1.8m) 15s |
| 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, buckle up.
Over the next 16 days, Turtles is the only game in town. It’s an advanced reef break, so not for the faint of heart. There’s a lot of swell coming, but the trade winds will spoil many sessions. Let’s run through it.
Monday morning, September 7th: A big 10ft SW swell with a very long 17-second period, packing serious energy (5016). But with an 18 mph SSE cross-offshore wind, it’s clean-looking but huge – way too big for anyone but the big-wave chargers. Afternoon is a total write-off with a 25 mph S cross-breeze.
Tuesday the 8th and Wednesday the 9th: Swell hangs in the 7-8ft range from the SW. Period stays long (15-16 seconds). The wind stays fresh, around 20-22 mph from the SE, keeping things only moderately clean. Energy stays high.
Thursday morning, September 10th, is our first real clean window. Swell drops to a more manageable 6ft from the WSW, 15-second period, with a light 6 mph NNE breeze. The water temp is about average for the season. The energy is moderate but the surf is clean for experienced paddlers.
Friday the 11th and most of the weekend are marginal with smaller waves and sideshore chop.
But hold up – Saturday morning, September 12th, is the absolute standout. We’ve got a clean 7ft WSW swell with a 17-second period, and the wind goes glassy at just 3 mph. The combined wave energy is strong (2635). This is the one. Get dawn patrol. Expect crowds, as it’s a known spot. The afternoon gets wrecked by a 15 mph onshore breeze, so make it a morning session.
From Sunday the 13th through Wednesday the 16th, we get a steady 5ft to 7ft SW swell with cross-off winds in the mornings at 9-15 mph. The afternoons are all chop. The energy is moderate to strong.
Thursday September 17th is a total dud – small 4ft surf with lumpy wind and low energy (641). Not worth paddling.
Friday the 18th and Saturday the 19th bring back 6-7ft SW swell with cleaner cross-off mornings. Strong energy around 2000. The mornings will be the best part of the day.
Sunday the 20th morning is clean but small (5ft). Then Monday the 21st sees a big jump back up to 7-8ft from the WSW with massive energy again (3604-4141). But the winds stay cross or cross-onshore all day, so it’s going to be a lumpy, bumpy grind.
The one to wait for: Saturday morning, September 12th at Turtles. Clean, glassy, 7ft of groundswell with serious power. That’s your best chance for some proper, clean reef waves.
Rusty.
Short Range ForecastMostly dry. Warm (max 26°C on Wed afternoon, min 16°C on Mon morning). Winds decreasing (strong winds from the S on Mon night, moderate winds from the SE by Wed afternoon). | Days 5-7 Weather SummaryMostly dry. Warm (max 25°C on Wed night, min 19°C on Wed night). Winds decreasing (fresh winds from the SE on Wed night, calm by Sat morning). | ||||||||||||||||||
Monday 7 | Tuesday 8 | Wednesday 9 | Thursday 10 | Friday 11 | Saturday 12 | ||||||||||||||
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 13 | SW 17 | WSW 16 | WSW 16 | SW 16 | SW 15 | WSW 16 | SW 16 | WSW 16 | WSW 15 | WSW 15 | WSW 15 | WSW 14 | WSW 14 | WSW 14 | WSW 19 | WSW 17 | WSW 16 | WSW 16 |
Wave Graph  | |||||||||||||||||||
 kJ | 2892 | 5016 | 3256 | 1928 | 2803 | 2593 | 2051 | 2299 | 2007 | 1412 | 1309 | 1052 | 886 | 647 | 647 | 1220 | 2276 | 2282 | 1933 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | cross | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-on | on | cross | cross-on | cross-on | glassy | cross-on | cross |
High Tide | 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 | 10:42AM1.07m | 10:58PM1.14m | ||||||||
Low Tide | 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 | 4:43PM0.26m | |||||||||
 |  | | | | | | | | | | | | | | | | | | |
 | — | 6:31 | — | — | 6:31 | — | — | 6:30 | — | — | 6:28 | — | — | 6:28 | — | — | 6:26 | — | — |
 | 6:15 | — | 6:15 | — | — | 6:16 | — | — | 6:16 | — | — | 6:16 | — | — | 6:17 | — | — | 6:17 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 20 | 20 | 23 | 20 | 19 | 24 | 23 | 21 | 26 | 25 | 25 | 23 | 21 | 22 | 22 | 21 | 22 | 22 | 21 |
Feels °C | 14 | 14 | 17 | 12 | 11 | 18 | 15 | 15 | 21 | 20 | 24 | 20 | 20 | 20 | 19 | 19 | 22 | 19 | 18 |
Swell 1 Height (m) Direction Period (s) | 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 | WSW 19 | WSW 17 | WSW 16 | WSW 16 |
| kJ | 2892 | 5016 | 3256 | 1928 | 2803 | 1907 | 2051 | 2299 | 2007 | 1412 | 1309 | 1052 | 886 | 647 | 647 | 1220 | 2276 | 2282 | 1933 |
Swell 2 Height (m) Direction Period (s) | WSW 20 | — | — | — | — | — | — | — | — | — | S 5 | SSW 7 | W 24 | W 22 | W 20 | WSW 14 | WSW 13 | — | — |
| kJ | 507 | — | — | — | — | — | — | — | — | — | 20 | 21 | 98 | 335 | 290 | 732 | 346 | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | W 26 | W 24 | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | 53 | 44 | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | SE 5 | SSE 5 | SSW 6 | SSW 8 | SE 5 | SW 15 | SSE 5 | ESE 5 | — | S 5 | — | — | — | NNW 3 | NW 4 | WNW 4 | WNW 4 | — | S 4 |
| kJ | 18 | 27 | 185 | 514 | 31 | 2593 | 69 | 33 | — | 29 | — | — | — | 4 | 8 | 24 | 13 | — | 10 |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 541 | 902 | 980 | 541 | 1091 | 905 | 541 | 251 | 7 | 866 | 0 | 792 | 424 | 1163 | 1275 | 1269 | 0 | 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.
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