
Surf Forecasts:
Turtles surf forecast from 12 Sep 2026:
- Best quality surf: Wednesday 16 Sep, 8AM (local time) - 6.5ft (2.0m), 14s period, SW swell with cross-offshore winds.
- Most powerful swell: Saturday 19 Sep, 8AM (local time) - 8ft (2.5m), 15s period, WSW swell with 3,469 kJ wave energy.
- Next surfable swell (1★+): Wednesday 16 Sep, 8AM (local time) - 6.5ft (2.0m), 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 Wednesday (Sep 16) at 8AM. The primary swell is predicted to be 2.0m and 14s period. 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 2.5m 15s 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+) | 8AM (Wed 16th Sep) | 6.5ft (2.0m) 14s |
| Best Surf | 8AM (Wed 16th Sep) | 6.5ft (2.0m) 14s |
| Most Powerful | 8AM (Sat 19th Sep) | 8ft (2.5m) 15s |
Table - best surf conditions forecast for Turtles over the next 16 days.
The Lowdown
Alright, Rusty here. Let’s look at what’s heading to Turtles.
The big one to circle on your calendar is Saturday morning, September 12. We’ve got a solid 7ft swell pushing in from the WSW with a 17-second period – that’s proper long-period groundswell, pumping with 2605 energy. Water temp is about 71°F, pretty much normal for this time of year. And the wind? Dead calm, glassy as a mirror. For an advanced reef break, this is about as good as it gets. The direction is a bit west of the ideal SSW, but with that period and zero wind, it’s going to be well overhead and lining up beautifully. Over 6ft on a reef means experienced surfers only. Expect company – this spot gets crowded, and on a morning like this, the regulars will be out in force.
After that, the wind turns ugly. Saturday afternoon goes cross-onshore and choppy. From Sunday the 13th through Tuesday the 15th, it’s a total bust: cross-onshore winds, lumpy, messy surf. The swell hangs around 6ft to 8ft but the quality is just not there. Wednesday morning the 16th offers a brief hope – light cross-on with 6ft and 14-second swell (1408 energy) – but it’s only marginal and the wind wrecks it by afternoon.
Thursday the 17th morning actually has an offshore wind (WSW, 10 km/h) but the swell has dropped to 4ft with a 16-second period, only 782 energy. It’s clean but small and weak for an advanced reef. Not worth the paddle. From there through the 22nd, it’s a long stretch of poor conditions: moderate to fresh cross or cross-onshore winds, chop, and lumpy seas. Swell stays between 4ft and 8ft but the wind just won’t cooperate.
Here’s the second true standout: Wednesday morning, September 23. Another glassy morning – SSE breeze at just 5 km/h, flat calm. Swell 6ft from the SW, 14 seconds, 1208 energy. It’s smaller than the first standout but the conditions will be clean and the reef should produce some nice shaped waves. Small enough that it might be a touch less intimidating, but still solid. Expect crowds again.
Looking further out: Thursday morning, September 24, things get big. A 10ft WSW swell with a very long 19-second period – that’s 6226 energy, serious power. But the wind is onshore at 15 mph, so it’ll be lumpy and mean. Only for the bravest experts, and even then, it’s messy. Saturday morning, September 27, sees another big cleanup: 8ft from the SW, 18 seconds, 4306 energy, with a cross-off SSE wind at 18 mph. Clean conditions, massive energy, but that’s expert territory and the wind is strong.
First week’s best is that Saturday morning, September 12. Second week’s highlight is Wednesday morning, September 23. Both glassy, both packing decent groundswell, and both will deliver for the crew who know the reef.
Rusty signing off.
Short Range ForecastMostly dry. Warm (max 22°C on Sat morning, min 18°C on Sun morning). Winds increasing (calm on Sat morning, fresh winds from the SW by Mon afternoon). | Days 4-6 Weather SummaryMostly dry. Warm (max 24°C on Thu afternoon, min 19°C on Wed morning). Winds decreasing (fresh winds from the SW on Tue afternoon, light winds from the SW by Wed morning). | ||||||||||||||||||||
Saturday 12 | Sunday 13 | Monday 14 | Tuesday 15 | Wednesday 16 | Thursday 17 | Friday 18 | |||||||||||||||
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 17 | WSW 16 | WSW 16 | WSW 15 | WSW 14 | WSW 14 | WSW 15 | WSW 15 | WSW 14 | SW 14 | SW 14 | SW 14 | SW 14 | SW 14 | SW 14 | SW 16 | SW 15 | WSW 14 | WSW 13 | WSW 14 | WSW 12 |
Wave Graph | |||||||||||||||||||||
2605 | 2058 | 1684 | 1393 | 1504 | 1504 | 1676 | 1546 | 1349 | 2232 | 2085 | 1811 | 1408 | 1255 | 816 | 773 | 631 | 630 | 465 | 777 | 1839 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | glassy | cross-on | cross | cross-on | cross-on | cross | cross | cross-on | cross | cross-on | cross-on | cross | cross-on | cross-on | cross | on | cross-on | cross-on | cross-on | cross-on | cross |
High Tide | 10:42AM1.07m | 10:58PM1.14m | 11:23AM1.02m | 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 | |||||||
Low Tide | 4:43PM0.26m | 5:14AM0.20m | 5:06PM0.29m | 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 | ||||||||
6:26 | — | — | 6:26 | — | — | 6:24 | — | — | 6:24 | — | — | 6:22 | — | — | 6:20 | — | — | 6:20 | — | — | |
— | 6:17 | — | — | 6:17 | — | — | 6:19 | — | — | 6:19 | — | — | 6:19 | — | — | 6:20 | — | — | 6:20 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 22 | 21 | 21 | 22 | 21 | 20 | 21 | 21 | 20 | 21 | 21 | 20 | 21 | 21 | 20 | 23 | 24 | 21 | 21 | 21 | 19 |
Feels °C | 22 | 17 | 18 | 21 | 17 | 16 | 17 | 15 | 15 | 18 | 17 | 17 | 22 | 18 | 19 | 22 | 22 | 18 | 20 | 17 | 15 |
Swell 1 Height (m) Direction Period (s) | WSW 17 | WSW 16 | WSW 16 | WSW 15 | WSW 14 | WSW 14 | WSW 15 | WSW 15 | WSW 14 | SW 14 | SW 14 | SW 14 | SW 14 | SW 14 | SW 14 | SW 16 | SW 15 | WSW 14 | WSW 13 | WSW 14 | WSW 12 |
2605 | 2058 | 1684 | 1393 | 1504 | 1504 | 1676 | 1546 | 1349 | 2232 | 2085 | 1811 | 1408 | 1255 | 816 | 773 | 631 | 630 | 465 | 777 | 1839 | |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | W 21 | W 21 | SW 4 | W 18 | SW 6 | W 18 |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 9 | 34 | 7 | 160 | 88 | 395 | |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | WSW 15 |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 292 | |
Wind waves Height (m) Direction Period (s) | — | — | — | — | SSW 4 | SSW 5 | SSW 6 | SSW 5 | SSW 6 | SSW 7 | — | — | — | — | — | — | SW 3 | — | SW 4 | — | — |
— | — | — | — | 11 | 87 | 92 | 73 | 115 | 110 | — | — | — | — | — | — | 5 | — | 15 | — | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 243 | 422 | 25 | 1281 | 424 | 618 | 1060 | 902 | 424 | 902 | 422 | 241 | 792 | 243 | 241 | 1163 | 1233 | 241 | 1694 | 1693 |
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.










