Surf Forecasts:
Turtles surf forecast from 8 Sep 2026:
- Best quality surf: Thursday 10 Sep, 8AM (local time) - 6ft (1.9m), 15s period, SW swell with 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★+): Thursday 10 Sep, 8AM (local time) - 6ft (1.9m), 15s period with SW 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 1.9m and 15s period with a secondary swell of 0.1m and 26s. The wind is predicted to be offshore as the swell arrives.
The most powerful waves expected at Turtles in the next 16 days are 2.1m 17s and forecast to arrive on Saturday (Sep 12) at 11AM. Winds are predicted to be glassy at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.2m 4s period and expected on Wednesday (Sep 09) at 5AM.
| Wave Type | Time (AWST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 8AM (Thu 10th Sep) | 6ft (1.9m) 15s |
| Best Surf | 8AM (Thu 10th Sep) | 6ft (1.9m) 15s |
| 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, listen up. Turtles is a serious reef, not for the beginners, and the next couple weeks are gonna be a real rollercoaster.
We start with a solid pulse of groundswell out of the SW, 16-second period, running about 7ft. That’s a lot of water moving, with a combined energy of 2173. The wind is a fresh 30 km/h offshore from the ESE, so the faces are gonna be clean. This is a standout for the advanced crew only. Water temp is about average for the season.
Wednesday morning is the best of the early days, but the afternoon the wind turns cross-offshore, which is still okay. Thursday morning (September 10th) is another beauty with a light ENE breeze, 6ft swell and 15-second period, clean as a whistle. The energy is a bit lower at 1452. Thursday afternoon turns to junk with a cross-onshore wind.
We get a lull through Friday and Saturday morning, but hold on—Saturday morning (September 12th) is the real standout for the first week. Glassy conditions, dead calm with a NW breeze of 5 km/h, and a 7ft, 17-second groundswell from the WSW. That’s a combined energy of 2605, and it’s going to be an epic, clean session for the experts. The afternoon gets ruined by a cross-onshore wind.
The rest of the first week and into the second week is a struggle. Sunday through to the following Friday is mostly cross-onshore winds and choppy, lumpy conditions. The swell sticks around in the 5ft to 8ft range, but the wind is not playing ball. There’s a brief window on Thursday morning (September 17th) with a light onshore wind, but it’s not clean.
The real drama kicks off on September 21st. Monday morning sees a big 8ft, 16-second SW groundswell and a fresh 35 km/h cross-offshore wind from the SSE, keeping it clean. The energy is strong at 3437. Tuesday morning (September 22nd) is the absolute king of the forecast—a massive 10ft, 17-second WSW groundswell with a combined energy of 5027. That is a lot of power. The wind is a moderate 20 km/h cross-offshore from the SE. This is solid, serious, expert-only territory. The afternoon gets slammed by a 40 km/h cross-shore wind.
After that, the swell hangs around but the winds turn messy again. It’s a tale of two weeks: some early clean sessions, then a long gap of poor conditions, followed by a couple of absolute monster, clean mornings right at the end. Keep your eye on that Tuesday the 22nd.
Rusty.
Short Range ForecastMostly dry. Warm (max 26°C on Wed afternoon, min 16°C on Tue night). Winds decreasing (strong winds from the ESE on Tue night, calm by Fri morning). | Days 5-7 Weather SummaryMostly dry. Warm (max 22°C on Sun morning, min 18°C on Sat morning). Wind will be generally light. | ||||||||||||||||||
Wednesday 9 | Thursday 10 | Friday 11 | Saturday 12 | Sunday 13 | Monday 14 | ||||||||||||||
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 16 | SW 16 | WSW 16 | WSW 15 | WSW 15 | WSW 15 | WSW 14 | WSW 15 | WSW 15 | WSW 19 | WSW 17 | WSW 16 | WSW 16 | WSW 15 | WSW 14 | WSW 14 | WSW 15 | SW 14 | WSW 14 |
Wave Graph  | |||||||||||||||||||
 kJ | 2558 | 2173 | 1880 | 1412 | 1386 | 1102 | 785 | 656 | 656 | 1406 | 2605 | 2058 | 1613 | 1374 | 1435 | 1435 | 1567 | 1785 | 1495 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | off | cross-off | cross-off | off | cross-on | glassy | cross-on | on | cross-on | glassy | cross-on | cross | cross-on | cross-on | cross | cross-on | cross-on | cross |
High Tide | 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 | 11:23AM1.02m | 11:25PM1.21m | 12:00PM0.96m | 11:52PM1.24m | ||||||
Low Tide | 1:25AM0.64m | 3:19PM0.21m | 2:52AM0.52m | 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 | |||||||
 |  | | | | | | | | | | | | | | | | | | |
 | — | 6:30 | — | — | 6:28 | — | — | 6:28 | — | — | 6:26 | — | — | 6:26 | — | — | 6:24 | — | — |
 | 6:16 | — | 6:16 | — | — | 6:16 | — | — | 6:17 | — | — | 6:17 | — | — | 6:17 | — | — | 6:19 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 24 | 20 | 26 | 25 | 23 | 23 | 21 | 22 | 21 | 21 | 21 | 21 | 20 | 22 | 21 | 20 | 20 | 20 | 20 |
Feels °C | 19 | 14 | 21 | 21 | 21 | 20 | 19 | 21 | 19 | 20 | 21 | 18 | 17 | 20 | 17 | 17 | 19 | 17 | 17 |
Swell 1 Height (m) Direction Period (s) | SW 16 | SW 16 | WSW 16 | WSW 15 | WSW 15 | WSW 15 | WSW 14 | WSW 15 | WSW 15 | WSW 19 | WSW 17 | WSW 16 | WSW 16 | WSW 15 | WSW 14 | WSW 14 | WSW 15 | SW 14 | WSW 14 |
| kJ | 2558 | 2173 | 1880 | 1412 | 1386 | 1102 | 785 | 656 | 656 | 1406 | 2605 | 2058 | 1613 | 1374 | 1435 | 1435 | 1567 | 1785 | 1495 |
Swell 2 Height (m) Direction Period (s) | — | — | — | S 5 | W 26 | W 24 | W 24 | W 22 | W 20 | WSW 14 | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | 15 | 13 | 44 | 98 | 335 | 388 | 742 | — | — | — | — | — | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | W 26 | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | 53 | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | SE 4 | ESE 4 | — | SE 4 | — | — | — | — | — | — | — | — | — | — | SSW 3 | S 4 | SSW 5 | — | SSW 5 |
| kJ | 42 | 29 | — | 15 | — | — | — | — | — | — | — | — | — | — | 6 | 15 | 19 | — | 33 |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 521 | 963 | 25 | 535 | 0 | 424 | 0 | 796 | 1163 | 25 | 0 | 1693 | 7 | 25 | 1059 | 424 | 424 | 1091 | 1060 |
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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