
Surf Forecasts:
Turtles surf forecast from 16 Sep 2026:
- Best quality surf: Thursday 17 Sep, 5AM (local time) - 4.5ft (1.4m), 13s period, SW swell with cross-offshore winds.
- Most powerful swell: Saturday 19 Sep, 8AM (local time) - 10ft (3.0m), 16s period, WSW swell with 4,340 kJ wave energy.
- Next surfable swell (1★+): Thursday 17 Sep, 5AM (local time) - 4.5ft (1.4m), 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 5AM. The primary swell is predicted to be 1.4m and 13s period with a secondary swell of 0.5m and 16s. Another secondary swell of 0.6m 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 16s and forecast to arrive on Saturday (Sep 19) at 8AM. Winds are predicted to be cross-offshore at the time the swell arrives.
| Wave Type | Time (AWST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 5AM (Thu 17th Sep) | 4.5ft (1.4m) 13s |
| Best Surf | 5AM (Thu 17th Sep) | 4.5ft (1.4m) 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 folks, Rusty here. Let’s have a look at what’s cookin’ over the next few weeks.
First up, we’re gonna have a bit of a slow start. The opening days are pretty grumpy with onshore winds and lumpy conditions. The first bit of real hope shows up on Friday the 18th in the morning with a bit of a window, but it’s pretty weak and not worth getting too excited about.
The first proper standout in this outlook is Saturday the 19th. Now, that morning’s got a big 10ft swell from the WSW with a long 15 second period. The combined energy is strong at 4176. But here’s the catch – the wind is a moderate cross-shore from the S at 12 mph, and the report flags it as marginal with a cross-chop. It’s gonna be big, powerful, and a bit messy. This is expert territory for sure. The afternoon gets even stronger winds and lumpy, so if you’re keen, that morning window is your only shot.
Then we hit a bit of a lull until Sunday the 20th morning. Swell drops to 8ft from the SW, period 13 seconds, combined energy 1804 – moderate to strong. But the real winner here is the wind: a light offshore from the SSE at 12 mph, leaving it clean. That’s a solid session for anyone comfortable in head-high plus surf. Still a bit of a question mark on the tide, but it’s the best looking window in the first week.
After that, it gets messy again through Monday and Tuesday with strong cross-onshore winds and lumpy, choppy conditions. Not much to write home about.
Now, looking further ahead, there’s a real gem shaping up for Thursday the 25th morning. A big 8ft swell from the WSW with a very long 20 second period, and combined energy of 4939. That’s some serious juice. The wind is a cross-offshore from the SSE at 22 mph. That’s a fresh breeze, but it’s clean. Long period swell like this will work beautifully at Turtles, which is a reef break – it’ll hold that energy and give you some proper, lined-up waves. That’s a standout for experienced surfers. The period is so long that you’ll get long lulls between sets, making the paddle out easier, but the waves will be powerful.
Then Saturday the 27th morning also looks promising, with a 8ft WSW swell at 16 seconds, combined energy 2848, and a clean cross-offshore breeze. Another solid option.
But if I had to pick the absolute best on offer, it’s Monday the 28th morning. Swell at 8ft from the SW, 14 second period, combined energy 1940. The wind is a gentle cross-offshore from the ESE at just 9 mph. The report says “excellent surf conditions for experienced surfers.” That’s the call. Clean, well-shaped, and manageable size for a confident crew.
Finally, Thursday the 1st of October morning is another big one: a 8ft swell from the WSW at a long 17 seconds, combined energy of 3046, and a moderate offshore from the E at 16 mph. Also flagged as excellent for experienced surfers. That’s a proper groundswell, and with offshore wind, Turtles will be firing. Just keep in mind it’s over two weeks out, so the long-range crystal ball gets a bit hazy, but it’s a promising looking day.
Remember, Turtles is a reef break, consistent, and it’s often crowded, so expect company if you score it when it’s good. Water temp here is 72°F, which is pretty normal for this time of year – no wild anomalies.
So, the pick of the whole run is Monday the 28th morning, with a close second on Thursday the 1st of October morning. Get on it.
Rusty.
Short Range ForecastMostly dry. Warm (max 24°C on Thu afternoon, min 18°C on Fri night). Mainly fresh winds. | Days 4-6 Weather SummaryMostly dry. Warm (max 26°C on Sun afternoon, min 17°C on Sat night). Mainly fresh winds. | ||||||||||||||||||||
Wednesday 16 | Thursday 17 | Friday 18 | Saturday 19 | Sunday 20 | Monday 21 | Tuesday 22 | |||||||||||||||
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 14 | SW 14 | SW 14 | SW 13 | SW 14 | WSW 14 | SW 13 | WSW 16 | WSW 17 | WSW 15 | WSW 15 | WSW 14 | SW 13 | WSW 13 | SW 12 | WSW 17 | WSW 16 | WSW 16 | WSW 15 | SW 14 | WSW 14 |
Wave Graph | |||||||||||||||||||||
1471 | 1233 | 743 | 480 | 614 | 501 | 400 | 363 | 1201 | 4176 | 3715 | 2426 | 1804 | 1030 | 627 | 576 | 1953 | 2271 | 1739 | 1340 | 934 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross-on | cross | cross-on | cross-on | cross-on | on | cross-on | cross | cross | cross | cross | cross-off | cross | cross | cross-on | cross-on | cross | cross | cross | cross-off |
High Tide | 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 | 5:01AM0.89m | 10:36PM0.73m | |||||||||
Low Tide | 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 | 2:11PM0.37m | 1:10AM0.71m | |||||||||
6:22 | — | — | 6:20 | — | — | 6:20 | — | — | 6:18 | — | — | 6:18 | — | — | 6:16 | — | — | 6:16 | — | — | |
— | 6:19 | — | — | 6:20 | — | — | 6:20 | — | — | 6:20 | — | — | 6:21 | — | — | 6:21 | — | — | 6:21 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 23 | 23 | 20 | 22 | 24 | 22 | 24 | 22 | 20 | 22 | 23 | 19 | 23 | 26 | 20 | 25 | 24 | 20 | 23 | 24 | 20 |
Feels °C | 22 | 20 | 18 | 21 | 22 | 22 | 22 | 18 | 16 | 19 | 18 | 14 | 18 | 22 | 14 | 21 | 19 | 16 | 19 | 19 | 16 |
Swell 1 Height (m) Direction Period (s) | SW 14 | SW 14 | SW 14 | SW 13 | SW 14 | WSW 14 | SW 13 | WSW 12 | SW 12 | WSW 15 | WSW 15 | WSW 14 | SW 13 | WSW 13 | SW 12 | WSW 13 | WSW 16 | WSW 16 | WSW 15 | SW 14 | WSW 14 |
1471 | 1233 | 743 | 480 | 614 | 501 | 400 | 273 | 635 | 4176 | 3715 | 2426 | 1804 | 1030 | 627 | 538 | 1953 | 2271 | 1739 | 1340 | 934 | |
Swell 2 Height (m) Direction Period (s) | — | — | SSW 5 | WSW 16 | W 20 | W 20 | W 18 | WSW 16 | WSW 17 | — | — | — | — | — | W 20 | WSW 17 | — | — | — | — | — |
— | — | 24 | 198 | 31 | 32 | 167 | 363 | 1201 | — | — | — | — | — | 8 | 576 | — | — | — | — | — | |
Swell 3 Height (m) Direction Period (s) | — | — | — | W 21 | — | — | — | — | — | — | — | — | — | — | W 10 | — | — | — | — | — | — |
— | — | — | 9 | — | — | — | — | — | — | — | — | — | — | 2 | — | — | — | — | — | — | |
Wind waves Height (m) Direction Period (s) | — | — | — | — | SW 3 | — | — | SW 4 | SSW 6 | — | SSW 4 | SSW 6 | — | SSW 5 | SSW 6 | SSW 6 | SSW 5 | SSW 5 | SSW 5 | SSW 5 | SSW 5 |
— | — | — | — | 2 | — | — | 14 | 90 | — | 34 | 122 | — | 64 | 115 | 47 | 48 | 75 | 40 | 48 | 78 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 241 | 545 | 7 | 241 | 1163 | 25 | 241 | 1241 | 1283 | 241 | 1693 | 422 | 241 | 915 | 424 | 879 | 1059 | 424 | 241 | 1073 | 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.










