Surf Forecasts:
Turtles surf forecast from 15 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, WSW swell with 3,887 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 0.9m 4s period and expected on Saturday (Sep 19) at 8AM.
| 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, and I’ve been staring at the charts for Turtles. It’s a bit of a mixed bag, but there are a couple of windows that will get the heart pumping.
Right off the bat, the outlook starts with a bit of a wait. The first few days are pretty hard work. On Tuesday the 15th, we’ve got a solid 7ft swell from the WSW, packing some serious grunt with combined wave energy around (1774), but that cross-shore wind is going to leave it lumpy and choppy. Not a great time to paddle out.
The consistent theme for the first week is a lot of cross and cross-onshore winds, keeping things messy. We see the swell drop off a bit mid-week, but the wind doesn't really clean up until we get to Saturday the 19th. That Saturday morning is where things start to look interesting. A 10ft WSW swell is rolling in, and with a clean cross-offshore breeze from the SSE, it’s forecast to be clean. The wave energy is massive at (3871), so this is for experienced surfers only – anything over 8ft is expert territory. It’ll be a powerful, raw ocean.
Even then, the afternoon gets messy again, and the next few days are a battle with the wind. The real standout, the one you want to circle on the calendar, is Friday the 25th of September. The morning session looks like the pick of the 16-day run. We’ve got a solid 10ft swell from the WSW, with a very long period of 20 seconds. That’s proper groundswell, and the combined energy is absolutely pumping at (7086). Conditions are being called clean with a cross-offshore breeze from the SE. This is reef break territory, and with that long period, the sets will be defined and lined up. It’s going to be big, powerful, and beautiful.
After that, Saturday the 26th morning still has some juice with a 10ft SW swell and offshore winds from the east, keeping it clean but still very big. Sunday the 27th morning is another good bet for a slightly smaller but still clean wave: a 6ft SW swell with moderate offshore easterlies. It’s a tricky forecast overall, with a lot of lumpy days in between, but that Friday the 25th is the one to chase. Turtles (reef) is fairly consistent, but with these conditions, it will be packing a punch. Expect crowds to be likely, because when the stars align here, everyone knows.
Rusty
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 night). | Days 4-6 Weather SummaryMostly dry. Warm (max 23°C on Sat afternoon, min 17°C on Fri night). Winds increasing (light winds from the SW on Fri morning, fresh winds from the S by Sat night). | ||||||||||||||||||||
Tuesday 15 | Wednesday 16 | Thursday 17 | Friday 18 | Saturday 19 | Sunday 20 | Monday 21 | |||||||||||||||
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) | WSW 14 | WSW 14 | WSW 14 | SW 14 | SW 14 | SW 14 | SW 13 | SW 14 | WSW 14 | WSW 13 | WSW 19 | SW 13 | WSW 16 | SW 15 | WSW 14 | SW 13 | SW 13 | WSW 12 | SW 13 | WSW 16 | WSW 15 |
Wave Graph  | |||||||||||||||||||||
 kJ | 1667 | 1560 | 1427 | 1494 | 1233 | 872 | 480 | 676 | 501 | 362 | 360 | 1863 | 3871 | 3819 | 1929 | 1613 | 1110 | 582 | 765 | 1743 | 1833 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross | cross | cross | cross-on | cross | cross-on | cross-on | cross-on | cross-on | cross | cross-off | cross-off | cross | cross | cross | cross-on | cross | cross-on | cross-on | cross |
High Tide | 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 | 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 | |||||||||
 | |  |  | | | | | | | | | | | | | | | | | | |
 | 6:24 | — | — | 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 | 21 | 22 | 20 | 23 | 24 | 21 | 22 | 23 | 21 | 21 | 22 | 19 | 20 | 23 | 18 | 23 | 23 | 20 | 23 | 22 | 20 |
Feels °C | 17 | 18 | 17 | 22 | 22 | 21 | 22 | 22 | 20 | 20 | 17 | 15 | 15 | 19 | 12 | 20 | 18 | 14 | 20 | 18 | 16 |
Swell 1 Height (m) Direction Period (s) | WSW 14 | WSW 14 | WSW 14 | SW 14 | SW 14 | SW 14 | SW 13 | SW 14 | WSW 14 | WSW 13 | WSW 12 | SW 13 | WSW 16 | SW 15 | WSW 14 | SW 13 | SW 13 | WSW 12 | SW 13 | WSW 16 | WSW 15 |
| kJ | 1667 | 1560 | 1427 | 1494 | 1233 | 872 | 480 | 676 | 501 | 362 | 325 | 1863 | 3871 | 3819 | 1929 | 1613 | 1110 | 582 | 765 | 1743 | 1833 |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | — | WSW 16 | W 20 | W 20 | W 18 | WSW 19 | WSW 17 | — | — | — | — | — | WSW 20 | WSW 17 | — | — |
| kJ | — | — | — | — | — | — | 198 | 31 | 32 | 167 | 360 | 877 | — | — | — | — | — | 37 | 569 | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | W 21 | — | — | — | — | — | — | — | — | — | — | W 10 | — | — | — |
| kJ | — | — | — | — | — | — | 9 | — | — | — | — | — | — | — | — | — | — | 2 | — | — | — |
Wind waves Height (m) Direction Period (s) | SSW 6 | SSW 5 | SSW 6 | — | — | — | — | — | — | SW 4 | SSW 6 | SSE 4 | — | — | SSW 6 | — | — | SSW 6 | — | SSW 5 | SSW 6 |
| kJ | 107 | 80 | 140 | — | — | — | — | — | — | 15 | 129 | 17 | — | — | 159 | — | — | 71 | — | 48 | 95 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 792 | 902 | 424 | 241 | 866 | 7 | 241 | 1283 | 25 | 1163 | 1283 | 1693 | 241 | 1281 | 424 | 25 | 1073 | 545 | 424 | 1059 | 545 |
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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