Surf Forecasts:
Turtles surf forecast from 25 Aug 2026:
- Best quality surf: Wednesday 26 Aug, 8AM (local time) - 5ft (1.6m), 14s period, SW swell with cross-offshore winds.
- Most powerful swell: Thursday 27 Aug, 2AM (local time) - 10ft (3.0m), 17s period, WSW swell with 4,757 kJ wave energy.
- Next surfable swell (1★+): Wednesday 26 Aug, 8AM (local time) - 5ft (1.6m), 14s 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 Wednesday (Aug 26) at 8AM. The primary swell is predicted to be 1.6m and 14s period with a secondary swell of 0.3m and 22s. 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 3.0m 17s and forecast to arrive on Thursday (Aug 27) at 2AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.0m 5s period and expected on Tuesday (Sep 01) at 8AM.
| Wave Type | Time (AWST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 8AM (Wed 26th Aug) | 5ft (1.6m) 14s |
| Best Surf | 8AM (Wed 26th Aug) | 5ft (1.6m) 14s |
| Most Powerful | 2AM (Thu 27th Aug) | 10ft (3.0m) 17s |
Table - best surf conditions forecast for Turtles over the next 16 days.
The Lowdown
Alright surfers, Rusty here. We’ve got a mixed bag coming in over the next couple of weeks at Turtles. A lot of this window is going to be frustrating, with solid swell getting trashed by nasty winds, but there are a couple of absolute gems hidden in there for those who can wait.
The opening is messy. We start on Wednesday the 26th of August with a clean morning, but don’t get too excited. There’s a 5ft SW swell rolling in with weak energy (1124) and a light WNW wind on it, but the surf report flags it as marginal. By the afternoon, the swell bumps up to 7ft from the WSW with a very long 16-second period (groundswell), and the west wind jumps to 25 km/h on it. It’s a write-off. Thursday the 27th is worse – a solid 10ft WSW swell but with 30 km/h south cross-shore winds creating lumpy cross-chop. This is expert-only stuff, and even then, it’s ugly. Friday the 28th and Saturday the 29th see the swell drop back but the wind stays unreliable, keeping things mostly poor.
Then we get a tease. On Sunday the 30th of August, the morning looks like the best bet of the first week. The swell is a clean 6ft from the WSW with a 17-second period (2001 combined energy), and the wind goes glassy – dead calm from the WNW at just 5 km/h. That’s a rare moment where Turtles will be clean and lined up, and the report says “excellent surf conditions for experienced surfers.” This is the standout of the first stretch, but it’s a short window. By Sunday afternoon, the onshore wind returns and kills it.
The following week is a grind. Monday the 31st through to Saturday the 5th of September is a frustrating run. There’s always some swell in the 5ft to 7ft range, mostly from the WSW, but the wind is stuck in a cross or cross-on pattern, often hitting 30-35 km/h. A few mornings like Tuesday 1st and Friday 4th have clean conditions with a cross-off breeze, but the reports still call them marginal. It’s a waiting game.
Now, here’s the real payoff. After a long stretch of average, Tuesday the 8th of September lights up. The morning shows a massive 13ft WSW swell hitting the coast, with a 20-second period and very strong wave energy (8847). That is a huge, powerful groundswell. But what makes this a true standout is the wind: a 20 km/h offshore breeze from the east. The report grades it as “exceptional surf conditions for expert surfers.” This is a serious, heavy session for the barrel riders. At 13ft, this is only for the experienced crew. The afternoon does get messy as the wind swings cross-on, so the early session is the key.
After that, the swell hangs around but the wind goes bad again on Wednesday the 9th, and then things fade out into the second week. The 10th of September has a clean morning with a 5ft SW swell but the energy drops off. It’s a fade-out.
So, to sum it up: the glassy Sunday morning on the 30th of August is the pick of the first week for clean, fun waves. But the absolute standout, the one to circle on your calendar, is the massive offshore session on Tuesday the 8th of September. That is a premium, expert-only day at Turtles. The rest of the time, expect to be watching the wind.
Rusty.
Short Range ForecastLight rain (total 3mm), mostly falling on Wed night. Warm (max 21°C on Wed night, min 15°C on Thu night). Winds increasing (light winds from the SE on Wed morning, fresh winds from the S by Thu night). | Days 4-6 Weather SummaryMostly dry. Warm (max 21°C on Mon afternoon, min 16°C on Sat morning). Winds increasing (calm on Sun morning, fresh winds from the SSE by Mon night). | ||||||||||||||||||||
Wednesday 26 | Thursday 27 | Friday 28 | Saturday 29 | Sunday 30 | Monday 31 | Tuesday 1 | |||||||||||||||
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 | WSW 16 | WSW 17 | WSW 16 | WSW 16 | SW 15 | SW 14 | SW 13 | SW 13 | SW 12 | SW 12 | WSW 19 | WSW 17 | WSW 18 | WSW 17 | WSW 16 | WSW 16 | WSW 17 | WSW 16 | WSW 16 | WSW 16 |
Wave Graph | |||||||||||||||||||||
893 | 1977 | 4757 | 3973 | 3691 | 3224 | 2185 | 1708 | 1435 | 689 | 469 | 772 | 2001 | 2247 | 2377 | 1948 | 1783 | 1915 | 1718 | 1341 | 1093 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | on | cross-on | cross | cross | cross-off | cross-off | cross | cross-off | cross | cross-on | cross-off | glassy | on | cross-on | cross-on | cross-on | cross-off | cross-off | cross | cross |
High Tide | 8:24AM1.01m | 10:38PM0.79m | 9:15AM1.05m | 10:47PM0.87m | 9:58AM1.07m | 11:03PM0.96m | 10:37AM1.08m | 11:22PM1.04m | 11:15AM1.06m | 11:43PM1.12m | 11:52AM1.01m | 00:07AM1.18m | 12:29PM0.94m | 00:33AM1.23m | |||||||
Low Tide | 3:58PM0.22m | 3:15AM0.60m | 4:20PM0.20m | 3:58AM0.51m | 4:41PM0.19m | 4:37AM0.43m | 5:01PM0.20m | 5:13AM0.34m | 5:21PM0.23m | 5:49AM0.27m | 5:41PM0.26m | 6:26AM0.22m | 6:02PM0.30m | ||||||||
6:43 | — | — | 6:41 | — | — | 6:41 | — | — | 6:41 | — | — | 6:39 | — | — | 6:39 | — | — | 6:37 | — | — | |
— | 6:12 | — | — | 6:13 | — | — | 6:13 | — | — | 6:13 | — | — | 6:14 | — | — | 6:14 | — | — | 6:14 | — | |
mm | — | — | 2 | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 20 | 20 | 21 | 20 | 21 | 19 | 18 | 20 | 18 | 19 | 19 | 18 | 19 | 20 | 20 | 20 | 21 | 20 | 19 | 22 | 19 |
Feels °C | 20 | 17 | 17 | 15 | 16 | 13 | 13 | 15 | 13 | 17 | 15 | 14 | 19 | 18 | 18 | 19 | 18 | 16 | 15 | 18 | 14 |
Swell 1 Height (m) Direction Period (s) | SW 14 | WSW 16 | WSW 17 | WSW 16 | WSW 16 | SW 15 | SW 14 | W 22 | SW 13 | SW 12 | SW 12 | SW 11 | WSW 17 | WSW 18 | WSW 17 | WSW 16 | WSW 16 | WSW 17 | WSW 16 | WSW 16 | WSW 16 |
893 | 1977 | 4757 | 3973 | 3691 | 3224 | 2185 | 9 | 1435 | 689 | 469 | 273 | 2001 | 2247 | 2377 | 1948 | 1783 | 1915 | 1718 | 1341 | 1093 | |
Swell 2 Height (m) Direction Period (s) | W 21 | W 20 | — | — | — | — | — | W 22 | W 20 | WSW 21 | WSW 19 | WSW 19 | — | — | — | W 20 | — | — | — | — | — |
231 | 932 | — | — | — | — | — | 9 | 8 | 153 | 292 | 772 | — | — | — | 490 | — | — | — | — | — | |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | W 24 | — | — | — | — | — | — | — | — | — | — | — | — |
— | — | — | — | — | — | — | — | 11 | — | — | — | — | — | — | — | — | — | — | — | — | |
Wind waves Height (m) Direction Period (s) | — | — | — | SSW 6 | — | SE 4 | — | SW 13 | — | — | — | — | — | — | — | — | SSW 3 | S 4 | S 5 | S 5 | SSW 7 |
— | — | — | 77 | — | 13 | — | 1708 | — | — | — | — | — | — | — | — | 6 | 38 | 36 | 51 | 306 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 241 | 898 | 1059 | 241 | 1060 | 1080 | 920 | 1060 | 424 | 7 | 545 | 0 | 0 | 845 | 424 | 424 | 1694 | 424 | 424 | 1059 | 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.











