Surf Forecasts:
Turtles surf forecast from 21 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: Wednesday 26 Aug, 11PM (local time) - 10ft (3.0m), 18s period, WSW swell with 5,302 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. Another secondary swell of 0.8m and 5s is also forecast. 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 18s and forecast to arrive on Wednesday (Aug 26) at 11PM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.2m 5s period and expected on Friday (Aug 28) 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 | 11PM (Wed 26th Aug) | 10ft (3.0m) 18s |
Table - best surf conditions forecast for Turtles over the next 16 days.
The Lowdown
Alright, Rusty here. Let's get into it.
Alright, listen up. We’ve got a run of solid surf on the cards for Turtles, but there’s a bit of a rough patch to get through first. The overall pattern is here to stay, with a persistent groundswell from the southwest, but the winds are going to be a headache for a few days.
The first real decent window (Fri 21 Aug) is a write-off, honestly. The swell is there at 6.9 ft from the WSW with a 15-second period, but the rain showers and a cross-on breeze from the NW make it a messy, choppy affair. The ocean’s pumping with 1963 of combined energy, but it’s not one for a paddle.
Saturday (22 Aug) is not much better. The swell drops a touch, but the wind swings from the WSW to a strong SW, making it cross-on and choppy. The energy is peaking at 2305, but it’s a waste with that wind.
Sunday (23 Aug) morning is interesting. The swell is still 5.2 ft from the SW, but a big, long period of 16 seconds. The wind is from the SSE at 15 mph, but it’s turning cross-offshore, cleaning things up. The energy is solid at 1354. It’s a miss for the ratings, but the potential is there for a few. The afternoon gets blown out though.
Monday (24 Aug) morning is your first real bright spot. 6.6 ft of SW swell with a 15-second period, and a clean cross-off breeze from the SE. The energy is high at 1765. The water is 72.1°, which is pretty normal for this time of year. That’s a session worth getting up early for.
The mid-week is a mixed bag again. Tuesday (25 Aug) morning is clean with 4.9 ft swell, but it’s a bit weak. Thursday (27 Aug) morning has some serious size – 8.2 ft from the WSW with a 16-second period, and strong cross-off winds from the SSE. That’s big, powerful, and clean (3596 energy), but that’s expert territory only. The afternoon is a bit smaller but still solid.
Now, the standout. Sunday (30 Aug) afternoon is where it’s at. The swell is 5.2 ft from the WSW, with a 16-second period, and the wind goes light from the SSE, making it glassy. The energy is 1230, and the conditions are described as excellent for experienced surfers. That’s the one.
And then it just keeps rolling. Monday (31 Aug) morning is a beaut too – 5.6 ft, 16-second SW groundswell, with a clean offshore breeze from the east. The afternoon is even better, with 6.6 ft of 19-second WSW groundswell and a light SE breeze. That’s a 2902 of energy and glassy conditions. That’s your best bet for the whole run.
Tuesday (1 Sep) morning is good but the wind turns onshore in the afternoon. Wednesday (2 Sep) morning is another excellent call with a light SE breeze and 5.9 ft swell. The rest of the run has size, but the winds get messy. The first week of September still has some windows, but the second week is a bit more of a gamble with the wind.
If you’re looking for the cream of the crop, lock in the afternoon of Sunday 30 August and the whole day of Monday 31 August. The swell direction from the WSW is right on the money for Turtles, the periods are long, and the winds are light or offshore. It’s a reef break, so those long period swells will line up perfectly. The crowds are likely, so get in early.
Short Range ForecastLight rain (total 7mm), mostly falling on Fri afternoon. Warm (max 23°C on Fri afternoon, min 16°C on Sun night). Winds increasing (light winds from the NW on Fri afternoon, fresh winds from the S by Sun afternoon). | Days 5-7 Weather SummaryMostly dry. Warm (max 23°C on Tue afternoon, min 16°C on Mon night). Winds increasing (light winds from the SSE on Wed morning, fresh winds from the SSE by Thu morning). | |||||||||||||||||||
Fri 21 | Saturday 22 | Sunday 23 | Monday 24 | Tuesday 25 | Wednesday 26 | Thursday 27 | ||||||||||||||
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 15 | WSW 15 | SW 14 | SW 14 | WSW 16 | SW 16 | SW 14 | WSW 14 | SW 15 | WSW 14 | WSW 14 | SW 13 | SW 12 | WSW 15 | WSW 14 | WSW 19 | WSW 17 | WSW 16 | WSW 16 | WSW 14 |
Wave Graph | ||||||||||||||||||||
1963 | 1772 | 1533 | 1170 | 1677 | 1178 | 1238 | 961 | 1765 | 1427 | 1005 | 746 | 479 | 1001 | 1019 | 4650 | 5183 | 3499 | 2751 | 1604 | |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross-on | cross-on | cross-off | cross-off | cross | cross-off | cross-off | cross | cross-off | cross-off | cross-on | cross | cross-on | cross-on | cross-off | cross-off | cross-off | cross-off |
High Tide | 3:34PM0.56m | 3:22AM1.05m | 6:02PM0.50m | 4:20AM0.99m | 5:46AM0.96m | 7:17AM0.98m | 10:47PM0.73m | 8:24AM1.01m | 10:38PM0.79m | 9:15AM1.05m | 10:47PM0.87m | |||||||||
Low Tide | 7:23PM0.47m | 12:16PM0.42m | 6:22PM0.50m | 2:11PM0.37m | 3:01PM0.31m | 3:32PM0.26m | 2:14AM0.67m | 3:58PM0.22m | 3:15AM0.60m | 4:20PM0.20m | 3:58AM0.51m | |||||||||
— | — | 6:47 | — | — | 6:46 | — | — | 6:45 | — | — | 6:43 | — | — | 6:43 | — | — | 6:41 | — | — | |
6:10 | — | — | 6:10 | — | — | 6:10 | — | — | 6:12 | — | — | 6:12 | — | — | 6:12 | — | — | 6:13 | — | |
mm | 3 | 4 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 23 | 23 | 21 | 21 | 21 | 20 | 21 | 19 | 18 | 21 | 18 | 20 | 23 | 20 | 20 | 20 | 20 | 18 | 22 | 20 |
Feels °C | 20 | 22 | 21 | 20 | 19 | 16 | 16 | 13 | 15 | 18 | 13 | 16 | 20 | 16 | 18 | 16 | 17 | 10 | 14 | 12 |
Swell 1 Height (m) Direction Period (s) | WSW 15 | WSW 15 | SW 14 | SW 14 | WSW 16 | SW 16 | WSW 18 | WSW 14 | SW 15 | WSW 14 | WSW 14 | SW 13 | SW 12 | WSW 15 | WSW 14 | WSW 19 | WSW 17 | WSW 16 | WSW 16 | WSW 14 |
1963 | 1772 | 1533 | 1170 | 1677 | 1178 | 109 | 961 | 1765 | 1427 | 1005 | 746 | 479 | 1001 | 1019 | 4650 | 5183 | 3499 | 2751 | 1604 | |
Swell 2 Height (m) Direction Period (s) | — | — | WSW 19 | WSW 18 | — | SSW 7 | — | — | — | — | — | WSW 19 | WSW 16 | — | S 5 | — | — | — | — | — |
— | — | 772 | 877 | — | 101 | — | — | — | — | — | 73 | 298 | — | 16 | — | — | — | — | — | |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | WSW 20 | — | — | — | — | — | — | — | — | W 21 | — | — | — | — | — |
— | — | — | — | — | 75 | — | — | — | — | — | — | — | — | 233 | — | — | — | — | — | |
Wind waves Height (m) Direction Period (s) | N 4 | — | — | SW 4 | SSW 4 | — | SW 14 | SSW 7 | SE 4 | SSW 4 | S 5 | S 5 | SSW 4 | SSW 5 | — | — | SSW 4 | S 5 | S 6 | S 7 |
9 | — | — | 8 | 23 | — | 1238 | 139 | 2 | 30 | 53 | 43 | 21 | 46 | — | — | 25 | 97 | 146 | 297 | |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 243 | 243 | 866 | 1277 | 1059 | 980 | 1075 | 422 | 25 | 545 | 422 | 25 | 1269 | 1277 | 25 | 1285 | 1059 | 424 | 1059 | 541 |
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.











