
Surf Forecasts:
Turtles surf forecast from 9 Sep 2026:
- Best quality surf: Thursday 10 Sep, 11AM (local time) - 5.5ft (1.7m), 15s 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★+): Thursday 10 Sep, 11AM (local time) - 5.5ft (1.7m), 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 11AM. The primary swell is predicted to be 1.7m and 15s period with a secondary swell of 0.1m and 26s. 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. The largest open ocean swell (not directed at the beach) is 0.9m 5s period and expected on Wednesday (Sep 09) at 11PM.
| Wave Type | Time (AWST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 11AM (Thu 10th Sep) | 5.5ft (1.7m) 15s |
| Best Surf | 11AM (Thu 10th Sep) | 5.5ft (1.7m) 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, Rusty here. Let’s have a look at what’s on the cards over the next couple of weeks.
We’ve only got one spot firing in the window, and that’s Turtles, an exposed reef setup that takes a solid SSW groundswell. The water temp is sitting at 71°, which is pretty much spot on average for this time of year, so no surprises there.
The forecast kicks off Wednesday the 9th with a solid 7ft WSW swell at 16 seconds, packing some serious energy (combined energy around 2058). Problem is, the morning wind is a fresh 19 mph easterly, so it’s offshore and clean – but the report flags it as marginal. Afternoon switches to a gentler SE cross-off, so there’s a window. Still, the session feels a bit average for the quality.
Thursday the 10th morning is your first real standout. Clean conditions with a light ENE breeze, 6ft of long-period WSW groundswell at 15 seconds (energy 1452). The waves will have shape and power, but with that long period they could stand up a bit straight on the reef – still, for an advanced crew, this is clean and meaty. Thursday afternoon goes to junk with onshore WSW wind.
Friday the 11th and the weekend mornings have potential, but winds get messy. The real gem pops up Saturday the 12th morning. Glassy conditions, light WNW air, and a pumping 7ft swell from the WSW at a very long 17 seconds. Combined energy is huge at 2605. This is a classic high-performance window for experienced surfers. Just a heads up – at this size, it’s expert territory, and the reef will have some serious juice.
Sunday the 13th through Monday the 14th sees cross-onshore winds and lumpy conditions. Not a write-off but not the pick of the week.
Tuesday the 15th holds size but the wind stays cross-shore and fresh, so it’s messy.
Then we roll into the second week. There’s another pulse building around Saturday the 19th, with a 8ft WSW swell and moderate cross-shore wind. Still marginal. Sunday the 20th morning looks promising with a 10ft WSW swell and light cross-onshore, but the afternoon gets blown out. Energy is strong (3106 in the morning) – again, this is big for the average punter.
The real monster shows up Tuesday the 22nd and Wednesday the 23rd. Tuesday morning has a 10ft WSW groundswell at 17 seconds, clean with a 22 mph SE cross-off, energy at 5154 – that is a lot of water moving. Only for experts on the reef. Wednesday morning similar, 10ft from the SW, clean again with SE cross-off. Afternoons both days get hammered by strong southerly winds though.
By Thursday the 24th the swell drops to a more manageable 6ft, clean with ESE cross-off, so that’s a nice way to wrap the window.
The standout – no doubt – is Saturday the 12th morning. Glassy, clean, solid 7ft at 17 seconds, all that energy focused right on Turtles. If you’re advanced, that’s the session to circle. The second standout is Tuesday the 22nd morning for the big-wave crew – just be ready for serious power.
Crowds at Turtles can be a factor, especially on the best days, so get in early.
Rusty
Short Range ForecastMostly dry. Warm (max 26°C on Wed afternoon, min 16°C on Wed morning). Winds decreasing (fresh winds from the ESE on Wed morning, calm by Fri morning). | Days 4-6 Weather SummaryMostly dry. Warm (max 21°C on Sat morning, min 18°C on Sun morning). Winds increasing (calm on Sat morning, fresh winds from the SW by Mon afternoon). | ||||||||||||||||||||
Wednesday 9 | Thursday 10 | Friday 11 | Saturday 12 | Sunday 13 | Monday 14 | Tuesday 15 | |||||||||||||||
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) | WSW 16 | WSW 16 | SW 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 | WSW 14 | WSW 14 | WSW 15 | WSW 14 | WSW 14 |
Wave Graph | |||||||||||||||||||||
2058 | 1880 | 1765 | 1386 | 1102 | 785 | 656 | 656 | 1406 | 2605 | 2058 | 1613 | 1328 | 1455 | 1525 | 1676 | 1667 | 1516 | 1860 | 1835 | 1560 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | cross-off | cross-off | cross-off | on | cross | cross-on | on | cross-on | glassy | on | cross-on | cross-on | cross-on | cross | cross-on | cross-on | cross | cross | cross | cross |
High Tide | 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 | 12:35PM0.88m | 00:19AM1.24m | ||||||||
Low Tide | 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 | 6:28AM0.15m | 5:49PM0.36m | ||||||||
6:30 | — | — | 6:28 | — | — | 6:28 | — | — | 6:26 | — | — | 6:26 | — | — | 6:24 | — | — | 6:24 | — | — | |
— | 6:16 | — | — | 6:16 | — | — | 6:17 | — | — | 6:17 | — | — | 6:17 | — | — | 6:19 | — | — | 6:19 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 21 | 26 | 26 | 24 | 23 | 21 | 22 | 22 | 21 | 21 | 21 | 20 | 21 | 21 | 20 | 21 | 20 | 19 | 21 | 21 | 19 |
Feels °C | 15 | 22 | 21 | 22 | 20 | 19 | 20 | 20 | 19 | 21 | 18 | 17 | 20 | 16 | 16 | 19 | 17 | 15 | 18 | 16 | 15 |
Swell 1 Height (m) Direction Period (s) | WSW 16 | WSW 16 | SW 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 | WSW 14 | WSW 14 | WSW 15 | WSW 14 | WSW 14 |
2058 | 1880 | 1765 | 1386 | 1102 | 785 | 656 | 656 | 1406 | 2605 | 2058 | 1613 | 1328 | 1455 | 1525 | 1676 | 1667 | 1516 | 1860 | 1835 | 1560 | |
Swell 2 Height (m) Direction Period (s) | — | — | — | W 26 | W 24 | W 24 | W 22 | W 20 | WSW 14 | — | — | — | — | — | — | — | — | — | — | — | — |
— | — | — | 13 | 44 | 98 | 335 | 388 | 742 | — | — | — | — | — | — | — | — | — | — | — | — | |
Swell 3 Height (m) Direction Period (s) | — | — | — | W 26 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
— | — | — | 53 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Wind waves Height (m) Direction Period (s) | ESE 4 | — | SSE 4 | — | — | — | — | — | — | — | — | — | — | — | S 3 | S 4 | — | SSW 5 | SSW 5 | SSW 5 | SSW 6 |
26 | — | 19 | — | — | — | — | — | — | — | — | — | — | — | 6 | 9 | — | 30 | 31 | 78 | 145 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 963 | 25 | 548 | 0 | 424 | 7 | 243 | 917 | 251 | 0 | 1693 | 25 | 25 | 1281 | 424 | 25 | 1059 | 866 | 1059 | 1693 | 607 |
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.










