
Surf Forecasts:
Turtles surf forecast from 13 Sep 2026:
- Best quality surf: Thursday 17 Sep, 8AM (local time) - 4.5ft (1.3m), 13s period, SW swell with cross-offshore winds.
- Most powerful swell: Saturday 19 Sep, 8AM (local time) - 10ft (3.0m), 16s period, SW swell with 3,953 kJ wave energy.
- Next surfable swell (1★+): Thursday 17 Sep, 8AM (local time) - 4.5ft (1.3m), 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 Thursday (Sep 17) at 8AM. The primary swell is predicted to be 1.3m and 13s period with a secondary swell of 0.5m and 16s. 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 11AM.
| Wave Type | Time (AWST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 8AM (Thu 17th Sep) | 4.5ft (1.3m) 13s |
| Best Surf | 8AM (Thu 17th Sep) | 4.5ft (1.3m) 13s |
| Most Powerful | 8AM (Sat 19th Sep) | 10ft (3.0m) 16s |
Table - best surf conditions forecast for Turtles over the next 16 days.
The Lowdown
Alright, Rusty here. Let's have a look at what's coming down the pipe.
It's a pretty tough start, I gotta be honest. We've got some solid swell on the cards, but the wind is gonna be a real battle for the next week or so. The standout window is further out, so we gotta be patient.
We're looking at Turtles, a solid reef break for advanced surfers only. The water temp is sitting right around 72°, which is bang on average for this time of year, so no surprises there.
The first real sniff of something good doesn't come until Thursday the 17th in the morning. It's not big, with a 4ft swell from the SW, and the wind goes light offshore from the WSW. It's still only rated marginal, but it's the first time the conditions line up even a little bit. That's a slim chance.
From there, it's pretty grim. Friday the 18th stays small with messy onshore winds. Saturday the 19th sees a jump in size, with 10ft swell from the SW, but the wind is howling cross-shore at 22 mph, making it a lumpy mess. That's a lot of energy (3842) but it's wasted.
Finally, the one to circle on your calendar is Sunday morning the 20th. We get a clean 7ft WSW groundswell with a nice 13-second period, and the wind goes light cross-offshore from the SSE at just 6 mph. The report says excellent surf for experienced surfers, and I agree. That's your best shot for a proper session. The swell energy is still solid at 1422. After that, the wind swings back onshore in the afternoon.
The following week continues the theme of onshore wind and lumpy surf, but we have another interesting window late in the outlook. Friday morning the 25th brings offshore wind from the E at 22 mph and a 6ft SW swell. The report says fresh offshore and clean, which is a major positive.
But the real long-range standout is Saturday the 26th morning. We're looking at a massive 8ft SW groundswell with a very long period of 20 seconds. The energy reading is through the roof at 5474. The wind is light and cross-shore from the NNW. That's a huge, powerful groundswell. A period that long will be breaking a bit straight at this beach break setup, so it's not for the faint-hearted and definitely experts only. It's a promising one, but it's over a week away so keep an eye on it.
The rest of the 16 days is pretty much a write-off with onshore winds and choppy conditions. If you're a kiter, those windy, lumpy days on the 15th and 22nd might be more your speed than a paddle surfer's.
Rusty.
Short Range ForecastMostly dry. Warm (max 22°C on Tue afternoon, min 18°C on Sun night). Winds decreasing (fresh winds from the SSW on Tue afternoon, light winds from the S by Wed morning). | Days 5-7 Weather SummaryMostly dry. Warm (max 22°C on Thu morning, min 17°C on Fri night). Winds increasing (light winds from the SSE on Thu morning, strong winds from the SW by Fri afternoon). | ||||||||||||||||||
Monday 14 | Tuesday 15 | Wednesday 16 | Thursday 17 | Friday 18 | Saturday 19 | ||||||||||||||
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 | WSW 15 | WSW 14 | WSW 14 | WSW 14 | SW 14 | SW 14 | SW 14 | SW 14 | SW 13 | SW 14 | WSW 14 | SW 13 | WSW 17 | SW 17 | WSW 16 | WSW 15 | WSW 14 |
Wave Graph | |||||||||||||||||||
1484 | 1676 | 1626 | 1368 | 1667 | 1644 | 2201 | 1494 | 1338 | 872 | 495 | 614 | 501 | 400 | 390 | 3717 | 3684 | 2576 | 1772 | |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross | cross-on | cross | cross-on | cross | cross | cross | cross-on | cross | on | cross-on | cross-on | on | cross-on | cross | cross | cross | cross-off |
High Tide | 11:25PM1.21m | 12:00PM0.96m | 11:52PM1.24m | 12:35PM0.88m | 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 | ||||||
Low Tide | 5:52AM0.16m | 5:28PM0.33m | 6:28AM0.15m | 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 | |||||||
— | 6:24 | — | — | 6:24 | — | — | 6:22 | — | — | 6:20 | — | — | 6:20 | — | — | 6:18 | — | — | |
6:17 | — | 6:19 | — | — | 6:19 | — | — | 6:19 | — | — | 6:20 | — | — | 6:20 | — | — | 6:20 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 20 | 21 | 21 | 20 | 21 | 22 | 20 | 22 | 22 | 21 | 22 | 22 | 21 | 21 | 20 | 19 | 20 | 21 | 19 |
Feels °C | 16 | 17 | 16 | 16 | 17 | 18 | 17 | 22 | 19 | 21 | 20 | 20 | 20 | 21 | 14 | 14 | 16 | 15 | 13 |
Swell 1 Height (m) Direction Period (s) | WSW 14 | WSW 15 | WSW 15 | WSW 14 | WSW 14 | WSW 14 | SW 14 | SW 14 | SW 14 | SW 14 | SW 13 | SW 14 | WSW 14 | SW 13 | WSW 12 | SW 17 | WSW 16 | WSW 15 | WSW 14 |
1484 | 1676 | 1626 | 1368 | 1667 | 1644 | 2201 | 1494 | 1338 | 872 | 495 | 614 | 501 | 400 | 268 | 3717 | 3684 | 2576 | 1772 | |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | WSW 16 | W 20 | W 20 | W 18 | WSW 17 | — | — | — | — |
— | — | — | — | — | — | — | — | — | — | 146 | 31 | 32 | 167 | 390 | — | — | — | — | |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | W 21 | — | — | — | — | — | — | — | — |
— | — | — | — | — | — | — | — | — | — | 9 | — | — | — | — | — | — | — | — | |
Wind waves Height (m) Direction Period (s) | S 5 | SSW 6 | SSW 5 | SSW 5 | SSW 6 | SSW 6 | — | — | SW 4 | — | — | SW 4 | SW 4 | SSW 4 | SSW 5 | — | SSE 4 | S 6 | SSW 6 |
78 | 67 | 52 | 78 | 121 | 135 | — | — | 10 | — | — | 13 | 8 | 20 | 103 | — | 15 | 141 | 176 | |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 424 | 241 | 980 | 845 | 607 | 845 | 422 | 7 | 792 | 7 | 251 | 1281 | 503 | 251 | 1075 | 1285 | 1693 | 1694 | 424 |
Best forecast wave conditions in North West WA | |||||||||||||||||||
Best forecast wave conditions in Australia | |||||||||||||||||||
Header Global | |||||||||||||||||||
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)
Wind Speed (km/h)
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.










