Surf Forecasts:
Turtles surf forecast from 23 Aug 2026:
- Best quality surf: Sunday 30 Aug, 2PM (local time) - 6ft (1.9m), 18s period, WSW swell with cross-offshore winds.
- Most powerful swell: Thursday 27 Aug, 2AM (local time) - 10ft (3.0m), 17s period, WSW swell with 5,209 kJ wave energy.
- Next surfable swell (1★+): Tuesday 25 Aug, 11AM (local time) - 5ft (1.5m), 13s 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 Tuesday (Aug 25) at 11AM. The primary swell is predicted to be 1.5m and 13s period with a secondary swell of 0.7m and 5s. 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-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 Thursday (Aug 27) at 8AM.
| Wave Type | Time (AWST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 11AM (Tue 25th Aug) | 5ft (1.5m) 13s |
| Best Surf | 2PM (Sun 30th Aug) | 6ft (1.9m) 18s |
| 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, Rusty here. Let’s get into it for Turtles.
We’ve got a solid run of southwest groundswell on the cards, but it’s not all smooth sailing. The conditions are going to be picky, so you’ll need to pick your windows. The standout period looks like the morning of Tuesday the 25th of August, with a clean 5ft SSW swell and light offshore winds. It’s not the biggest, but the combination of clean conditions and decent energy (767) makes it the best all-round bet for a quality session. Another one to keep an eye on is the morning of Thursday the 27th of August, but that’s a big 10ft SW swell with very strong energy (4451) – that’s for experienced surfers only, and the offshore breeze will keep it clean. That Thursday morning is a true standout for the bigger stuff, but only if you’ve got the skills.
The first real chance for a wave kicks off on Monday the 24th of August. The morning shows a 6ft WSW swell with clean conditions and a cross-off breeze, but the energy is solid (1432) and it’s described as marginal due to tides. It’s not a classic, but it’s a start. The afternoon gets messy with a cross-on wind, so avoid that. Tuesday the 25th of August is the pick of the early week – the morning is clean with a 5ft SW swell, light winds, and moderate energy (767). The afternoon turns poor. Wednesday the 26th of August has a clean morning with a 5ft SW swell and offshore winds, but the energy is high (1126) and it’s still marginal. Thursday the 27th of August morning is the big one: 10ft SW swell, very long 16-second period, strong energy (4451), and clean conditions – that’s a proper groundswell, but it’s big and powerful, best for experts. The afternoon is a write-off with strong cross-shore winds. Friday the 28th of August and Saturday the 29th of August mornings are clean but only small to moderate, with marginal conditions and moderate to fresh cross-off winds. Sunday the 30th of August morning has a 6ft WSW swell with a very long 18-second period and offshore winds – that’s promising but still marginal. The afternoon turns choppy.
Into the second week, things stay active but messy. Monday the 31st of August morning is clean with a 7ft WSW swell, but it’s marginal. Tuesday the 1st of September morning is similar, clean and 7ft. Wednesday the 2nd of September and Thursday the 3rd of September mornings both offer clean 5-6ft WSW swells, but the energy is moderate and it’s still marginal. Friday the 4th of September morning is clean but windy, and Saturday the 5th of September morning brings a bigger 8ft WSW swell with very long 17-second period and strong energy (2999) – that’s a good prospect for experienced surfers, but it’s still marginal. Sunday the 6th of September morning has a 8ft SW swell with strong energy (2375) and clean conditions, but it’s windy. The pattern holds through Monday the 7th and Tuesday the 8th of September with moderate to clean conditions but marginal surf.
Turtles is a reef break, so it handles the long-period swells well, and the optimum swell direction is SSW, which matches most of what’s coming. Water temperature is about average for the time of year, no major anomaly. Crowds are often present, so expect company. The break is fairly consistent, which is a plus. This is not a beginner’s spot – when the swell hits 8ft and above, it’s expert territory only. For the bigger days, the setup looks more interesting for paddle surfing if you’re skilled, but on the messy afternoons, you might be better off on a kite.
Overall, the best on offer is the morning of Tuesday the 25th of August for a clean, manageable session, and the morning of Thursday the 27th of August for the big, clean groundswell for experts.
Rusty.
Short Range ForecastMostly dry. Warm (max 22°C on Mon afternoon, min 16°C on Mon morning). Mainly fresh winds. | Days 5-7 Weather SummaryMostly dry. Warm (max 29°C on Sat afternoon, min 16°C on Fri morning). Mainly strong winds. | ||||||||||||||||||
Monday 24 | Tuesday 25 | Wednesday 26 | Thursday 27 | Friday 28 | Saturday 29 | ||||||||||||||
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 14 | WSW 15 | SW 14 | WSW 14 | SW 13 | SW 12 | SW 15 | SW 14 | WSW 16 | WSW 17 | SW 16 | SW 16 | WSW 15 | SW 14 | SW 13 | SW 13 | SW 12 | SW 12 | WSW 16 |
Wave Graph | |||||||||||||||||||
947 | 1368 | 1626 | 1005 | 746 | 607 | 881 | 893 | 2002 | 5209 | 4451 | 3955 | 1772 | 1779 | 1172 | 604 | 367 | 272 | 412 | |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | cross-on | cross-off | cross-off | cross-on | cross | on | on | cross | cross-off | cross | cross-off | cross-off | cross-off | cross-off | off | cross-off | off |
High Tide | 5:46AM0.96m | 7:17AM0.98m | 10:47PM0.73m | 8:24AM1.01m | 10:38PM0.79m | 9:15AM1.05m | 10:47PM0.87m | 9:58AM1.07m | 11:03PM0.96m | 10:37AM1.08m | 11:22PM1.04m | ||||||||
Low Tide | 3:01PM0.31m | 3:32PM0.26m | 2:14AM0.67m | 3:58PM0.22m | 3:15AM0.60m | 4:20PM0.20m | 3:58AM0.51m | 4:41PM0.19m | 4:37AM0.43m | 5:01PM0.20m | |||||||||
— | 6:45 | — | — | 6:43 | — | — | 6:43 | — | — | 6:41 | — | — | 6:41 | — | — | 6:41 | — | — | |
6:10 | — | 6:12 | — | — | 6:12 | — | — | 6:12 | — | — | 6:13 | — | — | 6:13 | — | — | 6:13 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 19 | 19 | 22 | 19 | 20 | 22 | 20 | 20 | 20 | 20 | 20 | 21 | 20 | 20 | 26 | 24 | 23 | 29 | 28 |
Feels °C | 16 | 15 | 19 | 13 | 17 | 19 | 16 | 18 | 17 | 16 | 14 | 14 | 13 | 11 | 19 | 15 | 14 | 22 | 21 |
Swell 1 Height (m) Direction Period (s) | WSW 14 | WSW 15 | SW 14 | WSW 14 | SW 13 | SW 12 | SW 15 | SW 14 | WSW 16 | WSW 17 | SW 16 | SW 16 | WSW 15 | SW 14 | SW 13 | SW 13 | SW 12 | SW 12 | WSW 16 |
947 | 1368 | 1626 | 1005 | 746 | 607 | 881 | 893 | 2002 | 5209 | 4451 | 3955 | 1772 | 1779 | 1172 | 604 | 367 | 272 | 412 | |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | — | W 24 | W 21 | W 20 | — | — | — | SSW 7 | — | W 21 | S 6 | WSW 21 | WSW 18 | SW 11 |
— | — | — | — | — | — | 11 | 233 | 932 | — | — | — | 155 | — | 9 | 40 | 90 | 106 | 150 | |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | W 20 | — | WSW 21 | WSW 20 |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 30 | — | 89 | 301 | |
Wind waves Height (m) Direction Period (s) | SSW 6 | SSW 6 | — | S 4 | S 5 | SSW 4 | SSW 4 | — | — | — | — | — | S 7 | ESE 4 | — | ESE 4 | ENE 4 | — | E 3 |
94 | 64 | — | 28 | 21 | 17 | 9 | — | — | — | — | — | 311 | 35 | — | 24 | 24 | — | 8 | |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 424 | 25 | 1163 | 422 | 0 | 1285 | 25 | 241 | 1281 | 607 | 424 | 1059 | 424 | 607 | 541 | 241 | 796 | 7 | 241 |
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.











