Surf Forecasts:
Turtles surf forecast from 23 Aug 2026:
- Best quality surf: Thursday 27 Aug, 11PM (local time) - 10ft (3.0m), 15s period, SW swell with cross-offshore winds.
- Most powerful swell: Wednesday 26 Aug, 11PM (local time) - 10ft (3.0m), 17s period, WSW swell with 5,657 kJ wave energy.
- Next surfable swell (1★+): Wednesday 26 Aug, 2AM (local time) - 4.5ft (1.4m), 15s 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 2AM. The primary swell is predicted to be 1.4m and 15s period with a secondary swell of 0.1m and 24s. Another secondary swell of 0.7m and 4s 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 17s and forecast to arrive on Wednesday (Aug 26) at 11PM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.9m 5s period and expected on Friday (Aug 28) at 8AM.
| Wave Type | Time (AWST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 2AM (Wed 26th Aug) | 4.5ft (1.4m) 15s |
| Best Surf | 11PM (Thu 27th Aug) | 10ft (3.0m) 15s |
| Most Powerful | 11PM (Wed 26th Aug) | 10ft (3.0m) 17s |
Table - best surf conditions forecast for Turtles over the next 16 days.
The Lowdown
Alright, this is Rusty, and I’ve got a long look ahead for you. We’re talking about Turtles, a reef break that’s for advanced surfers only. The water temp is sitting at 72.1°, which is about normal for this time of year—nothing weird there.
The first few days are a bit of a write-off, honestly. Sunday the 23rd sees some lumpy 6ft SW swell but with a cross-shore wind that’s just making a mess of it. The energy is moderate to strong (1667), but the wind is killing the vibe. That continues into Monday morning, where the swell drops a touch to 5.6ft from the WSW, but at least the wind is cross-offshore, giving us clean conditions. The energy is still pumping (1439). It’s not perfect, but it’s the first decent window. By Monday afternoon, the wind swings cross-onshore and it’s choppy again.
Tuesday the 25th is a write-off, and Wednesday has a massive raw 8.2ft WSW swell with a 19-second period—that’s serious groundswell, and the energy is very strong (4553). The wind is onshore though, so it’s going to be a beast. That’s expert-only territory, and the wind is going to make it a mess.
The big standout is Friday morning, August 28th. The swell is 7.9ft from the SW, a 14-second period, and the wind is glassy. The energy is very strong (2261). That’s the window for experienced surfers. The morning is going to be clean, and with that long period, the reef is going to hold it nicely. The afternoon turns cross-onshore and choppy, so get it early.
Then we’ve got a solid run into the end of the month. Sunday morning, August 30th, is another good one: 5.9ft from the WSW, 18-second period, clean cross-offshore wind. The energy is very strong (2024). That’s a beautiful, clean groundswell window. The reef will handle that long period perfectly.
The first week of September is a mixed bag. Tuesday, September 1st morning has clean cross-offshore wind with 5.9ft WSW swell and good energy (1705), but the wind is moderate. By Thursday, it’s getting smaller and a bit weaker. The real standout in the second week is Saturday, September 6th morning: 8.2ft SW swell, 14-second period, and clean cross-offshore wind. The energy is very strong (2883). That’s big, but it’s clean. That’s for the experts.
The real highlight is the Friday morning (August 28th) with glassy conditions and the Sunday morning (August 30th) with the long period groundswell. Those are the best two on offer. Crowds are often, so expect company at the peak.
Short Range ForecastMostly dry. Warm (max 23°C on Tue afternoon, min 16°C on Sun night). Mainly fresh winds. | Days 4-6 Weather SummaryMostly dry. Warm (max 20°C on Wed morning, min 17°C on Wed morning). Wind will be generally light. | ||||||||||||||||||||
Sunday 23 | Monday 24 | Tuesday 25 | Wednesday 26 | Thursday 27 | Friday 28 | Saturday 29 | |||||||||||||||
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 16 | SW 14 | WSW 14 | WSW 15 | SW 14 | WSW 14 | SW 13 | SW 12 | SW 15 | WSW 14 | WSW 19 | WSW 17 | WSW 16 | SW 16 | WSW 15 | SW 14 | SW 13 | SW 13 | SW 12 | SW 12 | WSW 16 |
Wave Graph  | |||||||||||||||||||||
 kJ | 1592 | 1139 | 947 | 1368 | 1626 | 1005 | 746 | 607 | 881 | 990 | 4553 | 5593 | 4071 | 3784 | 1546 | 2261 | 1682 | 1006 | 614 | 427 | 493 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross | cross-off | cross-off | cross-on | cross-off | cross-off | cross-on | cross-off | cross-on | on | on | on | on | cross-off | glassy | cross-on | cross | cross | on | cross-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 | 2:11PM0.37m | 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 | ||||||||||
 |  |  | | | | | | | | | | | | | | | | | | | |
 | 6:46 | — | — | 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 | 20 | 19 | 18 | 21 | 19 | 20 | 23 | 20 | 20 | 20 | 20 | 20 | 20 | 19 | 20 | 20 | 20 | 21 | 21 | 21 |
Feels °C | 15 | 15 | 15 | 14 | 18 | 14 | 16 | 20 | 15 | 20 | 18 | 15 | 19 | 18 | 18 | 19 | 17 | 17 | 20 | 19 | 19 |
Swell 1 Height (m) Direction Period (s) | SW 16 | SW 14 | WSW 14 | WSW 15 | SW 14 | WSW 14 | SW 13 | SW 12 | SW 15 | WSW 14 | WSW 19 | WSW 17 | WSW 16 | SW 16 | WSW 15 | SW 14 | W 21 | SW 13 | SW 12 | SW 12 | SW 11 |
| kJ | 1592 | 1139 | 947 | 1368 | 1626 | 1005 | 746 | 607 | 881 | 990 | 4553 | 5593 | 4071 | 3784 | 1546 | 2261 | 9 | 1006 | 614 | 427 | 241 |
Swell 2 Height (m) Direction Period (s) | WSW 20 | WSW 18 | — | — | — | — | — | — | W 24 | W 21 | — | — | — | — | — | — | W 21 | W 20 | WSW 23 | WSW 18 | WSW 16 |
| kJ | 75 | 109 | — | — | — | — | — | — | 11 | 332 | — | — | — | — | — | — | 9 | 30 | 102 | 124 | 493 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | S 4 | — | — | — | — | — | — | — | W 26 | — | WSW 21 | WSW 20 |
| kJ | — | — | — | — | — | — | — | — | — | 9 | — | — | — | — | — | — | — | 13 | — | 153 | 298 |
Wind waves Height (m) Direction Period (s) | — | — | SSW 6 | S 6 | — | S 4 | S 5 | SSW 4 | SSW 4 | — | — | — | — | — | SSW 8 | SE 4 | SW 13 | — | — | — | — |
| kJ | — | — | 113 | 71 | — | 31 | 28 | 18 | 19 | — | — | — | — | — | 567 | 24 | 1682 | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 920 | 1075 | 424 | 25 | 915 | 424 | 25 | 1285 | 0 | 25 | 980 | 424 | 243 | 1700 | 241 | 0 | 521 | 25 | 241 | 1059 | 0 |
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.
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