Surf Forecasts:
Turtles surf forecast from 16 Aug 2026:
- Best quality surf: Tuesday 18 Aug, 11AM (local time) - 10ft (3.0m), 17s period, WSW swell with offshore winds.
- Most powerful swell: Tuesday 18 Aug, 2PM (local time) - 11ft (3.5m), 17s period, WSW swell with 6,211 kJ wave energy.
- Next surfable swell (1★+): Tuesday 18 Aug, 2AM (local time) - 7ft (2.1m), 17s 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 Tuesday (Aug 18) at 2AM. The primary swell is predicted to be 2.1m and 17s period. 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 3.5m 17s and forecast to arrive on Tuesday (Aug 18) at 2PM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.8m 4s period and expected on Thursday (Aug 20) at 11AM.
| Wave Type | Time (AWST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 2AM (Tue 18th Aug) | 7ft (2.1m) 17s |
| Best Surf | 11AM (Tue 18th Aug) | 10ft (3.0m) 17s |
| Most Powerful | 2PM (Tue 18th Aug) | 11ft (3.5m) 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 coming down the pipe for this stretch.
We're looking at a solid run of SW groundswell at Turtles, a heavy reef setup only for the experienced. Water temp is sitting at 72°, which is pretty much what you'd expect for this time of year, nothing unusual there.
The start is a bit of a write-off. Sunday the 16th is a no-go – poor conditions, choppy with a cross-onshore mess. Monday the 17th isn't much better with marginal surf and strong onshore wind, so you can sit those first couple of days out.
Now, Tuesday morning the 18th is the real standout of the entire forecast. We've got a big 10ft swell from the WSW, and here's the kicker – clean offshore winds from the ESE. This is exceptional surf, but it's only for advanced guys. The wave energy is pumping hard (5488), and with that 17-second period, it's proper groundswell. It'll be big, powerful and lined up, but on a reef, you need to know what you're doing. The afternoon shifts to a choppy cross-onshore, so don't sleep in for that early session.
From Wednesday the 19th through to the end of the first week, the swell stays in the 7ft to 8ft range with mostly clean conditions thanks to cross-offshore winds from the SE and SSE. It’s going to be consistent and well-shaped, but the wind state is "marginal" on a few of those slots, so check the tide. The wave energy stays well into the thousands – solid moderate to strong energy.
The first week's crowds at Turtles? It’s a known spot that can get busy, so expect some company.
Heading into the second week, the energy drops. Monday the 24th and Tuesday the 25th see smaller 4ft to 5ft swell, but morning sessions stay clean with light cross-off winds. Not worth getting too excited about, but if you're desperate for a paddle, it's there.
There's a bit of a pulse building again from Wednesday the 26th, with 8ft swell returning, but the wind is a messy cross-onshore, so the quality takes a hit. That setup looks more interesting for kite surfing than paddle surfing, to be honest.
The tail end of the run, around Sunday the 31st of August, shows potential. We've got a 8ft to 10ft WSW groundswell with a very long 18-second period. The morning of the 31st has light cross-shore winds, so it's on the cards, but by afternoon it's blown out by a strong SSW wind. That early window is promising, but long-range, so less certain.
Best on offer: Tuesday morning the 18th. 10ft, clean offshore, pumping energy. Expert only. Get it while it's good.
- Rusty
Short Range ForecastMostly dry. Warm (max 23°C on Sun afternoon, min 17°C on Wed morning). Wind will be generally light. | Days 5-7 Weather SummaryLight rain (total 9mm), mostly falling on Wed night. Warm (max 25°C on Fri afternoon, min 15°C on Wed night). Mainly fresh winds. | |||||||||||||||||||
Sun 16 | Monday 17 | Tuesday 18 | Wednesday 19 | Thursday 20 | Friday 21 | Saturday 22 | ||||||||||||||
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 13 | WSW 16 | WSW 16 | WSW 16 | WSW 17 | WSW 17 | WSW 17 | WSW 16 | WSW 16 | WSW 15 | WSW 15 | WSW 16 | WSW 16 | WSW 16 | WSW 15 | SW 15 | SW 14 | SW 14 | SW 14 | WSW 17 |
Wave Graph | ||||||||||||||||||||
623 | 1397 | 1851 | 1706 | 2624 | 5488 | 6138 | 4717 | 3480 | 2705 | 2464 | 3593 | 3463 | 2900 | 2318 | 2037 | 1785 | 1512 | 1303 | 2351 | |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | on | on | cross-on | cross-off | off | cross-on | cross-off | cross-off | cross-off | cross-off | cross-off | cross | cross-off | cross-off | cross-on | cross | cross-on | cross-on | cross |
High Tide | 00:39AM1.17m | 12:53PM0.94m | 1:08AM1.19m | 1:30PM0.84m | 1:37AM1.19m | 2:06PM0.73m | 2:08AM1.16m | 2:44PM0.64m | 2:41AM1.10m | 3:34PM0.56m | 3:22AM1.05m | 6:02PM0.50m | 4:20AM0.99m | |||||||
Low Tide | 6:12PM0.23m | 6:54AM0.26m | 6:33PM0.29m | 7:37AM0.27m | 6:52PM0.34m | 8:21AM0.31m | 7:08PM0.39m | 9:10AM0.35m | 7:20PM0.43m | 10:15AM0.40m | 7:23PM0.47m | 12:16PM0.42m | 6:22PM0.50m | |||||||
— | — | 6:50 | — | — | 6:50 | — | — | 6:48 | — | — | 6:48 | — | — | 6:48 | — | — | 6:47 | — | — | |
6:08 | — | — | 6:08 | — | — | 6:08 | — | — | 6:08 | — | — | 6:09 | — | — | 6:10 | — | — | 6:10 | — | |
mm | — | — | — | — | — | — | — | — | — | 1 | 8 | — | — | — | — | — | — | — | — | — |
Temp °C | 23 | 22 | 21 | 21 | 20 | 21 | 23 | 20 | 20 | 21 | 17 | 19 | 22 | 20 | 23 | 25 | 22 | 23 | 22 | 21 |
Feels °C | 19 | 19 | 19 | 18 | 18 | 20 | 22 | 18 | 15 | 17 | 13 | 17 | 21 | 15 | 22 | 23 | 19 | 22 | 20 | 18 |
Swell 1 Height (m) Direction Period (s) | SW 13 | WSW 16 | WSW 16 | WSW 16 | WSW 17 | WSW 17 | WSW 17 | WSW 16 | WSW 16 | WSW 15 | WSW 15 | WSW 16 | WSW 16 | WSW 16 | WSW 15 | SW 15 | SW 14 | SW 14 | SW 14 | WSW 17 |
623 | 1397 | 1851 | 1706 | 2624 | 5488 | 6138 | 4717 | 3480 | 2705 | 2464 | 3593 | 3463 | 2900 | 2318 | 2037 | 1785 | 1512 | 1303 | 2351 | |
Swell 2 Height (m) Direction Period (s) | WSW 18 | — | — | W 20 | — | — | — | — | — | — | — | — | — | — | SSW 5 | — | W 24 | — | WSW 19 | — |
243 | — | — | 290 | — | — | — | — | — | — | — | — | — | — | 8 | — | 11 | — | 611 | — | |
Swell 3 Height (m) Direction Period (s) | — | — | — | W 4 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
— | — | — | 9 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Wind waves Height (m) Direction Period (s) | — | WNW 3 | W 4 | — | — | — | — | — | — | — | — | S 4 | S 4 | S 5 | — | — | — | — | SSW 3 | SSW 4 |
— | 3 | 13 | — | — | — | — | — | — | — | — | 26 | 30 | 37 | — | — | — | — | 7 | 8 | |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 500 | 500 | 241 | 1369 | 0 | 0 | 1269 | 0 | 7 | 556 | 7 | 25 | 1281 | 541 | 0 | 1059 | 521 | 251 | 1059 | 1059 |
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.











