Surf Forecasts:
Turtles surf forecast from 15 Sep 2026:
- Best quality surf: Thursday 17 Sep, 11PM (local time) - 4ft (1.2m), 14s period, SW swell with cross-offshore winds.
- Most powerful swell: Saturday 19 Sep, 8AM (local time) - 10ft (3.0m), 16s period, WSW swell with 4,019 kJ wave energy.
- Next surfable swell (1★+): Thursday 17 Sep, 11PM (local time) - 4ft (1.2m), 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 Thursday (Sep 17) at 11PM. The primary swell is predicted to be 1.2m and 14s period with a secondary swell of 0.3m and 20s. 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 16s and forecast to arrive on Saturday (Sep 19) at 8AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.7m 4s period and expected on Saturday (Sep 19) at 2AM.
| Wave Type | Time (AWST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 11PM (Thu 17th Sep) | 4ft (1.2m) 14s |
| Best Surf | 11PM (Thu 17th Sep) | 4ft (1.2m) 14s |
| Most Powerful | 8AM (Sat 19th Sep) | 10ft (3.0m) 16s |
Table - best surf conditions forecast for Turtles over the next 16 days.
The Lowdown
Let’s get straight into it. Turtles has been suffering through a rough patch, but there are a couple of windows worth setting the alarm for. Water temp is 72°, pretty standard for this time of year.
First up, Tuesday afternoon is not your friend. A 7ft WSW swell is getting chopped up by a 35 km/h SSW cross-shore. There’s plenty of energy – 1653 – but it’s messy. You’ll take off and just get slopped.
Wednesday morning, the swell drops to 7ft from the SW, and the wind backs off to 20 km/h. Still cross-shore, so not great, but it’s a bit more organized. The afternoon, though, the wind turns onshore and it’s lumpy again. Just not worth it.
Thursday and Friday are small and pretty weak. A few ankle-biters with onshore winds. It’s a lull, and you’ll be doing more sitting than surfing.
Then, Saturday the 19th. This is the one. The morning brings a solid 10ft WSW swell with a 16-second period, and a clean cross-offshore wind out of the SSE at 20 km/h. The energy is roaring at 3918. It’s big, it’s powerful, and it’s clean. This is purely for the experts – everyone else should be watching from the cliff. It’s the definite highlight of the run.
Sunday the 20th morning is still decent. A 7ft SW swell, light cross-offshore winds, and energy at 1613. It’s clean, but not as critical as Saturday. The afternoon, again, gets wrecked by a 40 km/h onshore.
The following week is mostly a wash. There’s a big pulse on the 25th – up to 10ft with an 18-second period – but the wind is always on it or cross-shore, making it a messy, lumpy mess. The energy might be huge, over 5000 at times, but you can’t surf it.
The next real opportunity is the 27th, a Sunday. The morning is clean and glassy, with a 7ft SW swell, a 15-second period, and barely a breath of wind out of the SSE. Conditions are excellent for those with the skills to handle it. The energy is solid at 1900. Get out there early because the afternoon turns to junk.
From there, it’s just poor surf. The swell fades, and the winds are mostly onshore or cross-shore, chopping everything up through the end of the month.
So, if you’re marking the calendar, it’s Saturday the 19th and Sunday the 27th. Both mornings. Both for the experienced crew. Everything else is a salvage operation.
Rusty out.
Short Range ForecastMostly dry. Warm (max 24°C on Wed afternoon, min 18°C on Tue night). Winds decreasing (fresh winds from the SSW on Tue afternoon, light winds from the S by Thu morning). | Days 5-7 Weather SummaryMostly dry. Warm (max 24°C on Sun afternoon, min 16°C on Sat night). Mainly fresh winds. | |||||||||||||||||||
Tue 15 | Wednesday 16 | Thursday 17 | Friday 18 | Saturday 19 | Sunday 20 | Monday 21 | ||||||||||||||
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 14 | WSW 14 | SW 14 | SW 14 | SW 14 | SW 13 | SW 14 | SW 14 | WSW 13 | WSW 17 | SW 12 | WSW 16 | WSW 15 | WSW 14 | SW 13 | SW 13 | WSW 12 | WSW 12 | WSW 16 | WSW 15 |
Wave Graph  | ||||||||||||||||||||
 kJ | 1560 | 1427 | 1587 | 1233 | 872 | 480 | 614 | 548 | 362 | 367 | 1946 | 3918 | 2738 | 1929 | 1613 | 1430 | 582 | 513 | 1953 | 2069 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross | cross | cross-on | cross | cross-on | cross-on | cross-on | cross-on | cross | cross | cross-off | cross | cross-off | cross-off | cross-on | cross | cross-on | cross-on | cross |
High Tide | 00:19AM1.24m | 1:07PM0.80m | 00:46AM1.20m | 1:38PM0.72m | 1:15AM1.15m | 2:12PM0.65m | 1:45AM1.08m | 3:00PM0.58m | 2:22AM1.01m | 5:28PM0.54m | 3:17AM0.94m | |||||||||
Low Tide | 5:49PM0.36m | 7:04AM0.18m | 6:08PM0.39m | 7:39AM0.23m | 6:25PM0.42m | 8:19AM0.30m | 6:39PM0.46m | 9:09AM0.37m | 6:45PM0.50m | 10:41AM0.43m | 5:52PM0.54m | 1:14PM0.42m | ||||||||
 |  |  | | | | | | | | | | | | | |  | | | | |
 | — | — | 6:22 | — | — | 6:20 | — | — | 6:20 | — | — | 6:18 | — | — | 6:18 | — | — | 6:16 | — | — |
 | 6:19 | — | — | 6:19 | — | — | 6:20 | — | — | 6:20 | — | — | 6:20 | — | — | 6:21 | — | — | 6:21 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 22 | 20 | 23 | 24 | 20 | 21 | 22 | 22 | 22 | 21 | 19 | 20 | 23 | 18 | 23 | 24 | 20 | 24 | 23 | 20 |
Feels °C | 18 | 16 | 21 | 21 | 18 | 20 | 20 | 21 | 20 | 18 | 15 | 16 | 19 | 12 | 19 | 19 | 14 | 20 | 19 | 15 |
Swell 1 Height (m) Direction Period (s) | WSW 14 | WSW 14 | SW 14 | SW 14 | SW 14 | SW 13 | SW 14 | SW 14 | WSW 13 | WSW 13 | SW 12 | WSW 16 | WSW 15 | WSW 14 | SW 13 | SW 13 | WSW 12 | WSW 12 | WSW 16 | WSW 15 |
| kJ | 1560 | 1427 | 1587 | 1233 | 872 | 480 | 614 | 548 | 362 | 277 | 1946 | 3918 | 2738 | 1929 | 1613 | 1430 | 582 | 513 | 1953 | 2069 |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | WSW 16 | W 20 | W 20 | W 18 | WSW 17 | WSW 17 | — | — | — | — | — | W 20 | WSW 17 | — | — |
| kJ | — | — | — | — | — | 198 | 31 | 32 | 167 | 367 | 877 | — | — | — | — | — | 8 | 475 | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | W 21 | — | — | — | — | — | — | — | — | — | — | W 10 | — | — | — |
| kJ | — | — | — | — | — | 9 | — | — | — | — | — | — | — | — | — | — | 2 | — | — | — |
Wind waves Height (m) Direction Period (s) | SSW 6 | SSW 7 | — | — | — | — | — | — | SW 4 | SSW 6 | SSE 4 | — | SSW 5 | SSW 6 | — | SSW 4 | SSW 6 | SSW 6 | SSW 5 | SSW 5 |
| kJ | 93 | 175 | — | — | — | — | — | — | 12 | 101 | 17 | — | 64 | 154 | — | 16 | 93 | 55 | 62 | 88 |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 980 | 424 | 241 | 866 | 7 | 241 | 1283 | 1233 | 1163 | 1283 | 1456 | 241 | 1281 | 424 | 241 | 1059 | 424 | 866 | 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.
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