Lacanau Ocean Surf Forecast and Surf Report

Alright, folks, Rusty here. Let’s get straight into it. We’ve got a mixed bag on the cards for the next couple of weeks at Lacanau Ocean. The pattern is mostly one that’ll test your patience—a lot of dud days with messy onshore wind and weak energy. But if you hold out, there are a couple of real treats on the horizon.

Right off the bat, the water's sitting at a toasty 76°F, which is much warmer than usual for this time of year. That’s a nice bonus for any session.

The first few days are pretty much a write-off for surfing. Thursday 27th August kicks off with tiny 1ft to 1ft swell out of the WNW, period a short 8 seconds and barely 16 energy units. The cross-onshore breeze is just making things choppy and ugly. Friday is no better – we get onshore wind and rain showers pushing in a messy 6ft swell, but with a short 7 second period and moderate energy (278). It’s just a choppy, blown-out mess. Saturday and Sunday look similar, with onshores and cross-on wind ruining what little shape there is. The swell gets up to 6ft on Saturday morning (593 energy), but it’s no good for us paddle surfers — strong cross-on wind and the quality is poor. This stretch honestly looks more interesting for kite surfing than paddling, with those consistent onshore winds.

Monday 31st August through to Thursday 3rd September is a bit of a low point. Swell drops off into the 2ft to 4ft range with low energy (down to 38 at one point). The wind is still cross-on or onshore for most of it. We do get a brief bit of glass on the morning of Wednesday 2nd September with 3ft swell, but it’s weak (92 energy) and small, just about surfable but nothing to write home about.

Then we finally get a promising window. Saturday 5th September morning is where it starts to get interesting. The swell is 4ft from the WNW, period jumps up to a juicy 11 seconds (355 energy), and there’s glassy conditions with a light offshore breeze from the NE. This is clean, lined-up surf and the best conditions we’ve seen so far. It’s a standout.

Sunday 6th September morning is another cracker for the same reason – glassy conditions with 4ft swell, again from the WNW with that nice 11 second period (419 energy). This is clean, fun-sized surf. The offshore wind at Lacanau means it’s gonna be well-shaped and not too crowded if you get in early. This is likely the best on offer.

After that, we go back into a bit of a slump through to mid-September with onshore or cross-on wind and moderate energy swells.

But hold on—the real standout appears on Thursday 10th September morning. We get 6ft of WNW swell with a 9 second period (517 energy), and a cross-offshore wind from the NNE. That means clean, peeling waves. The energy is strong, and it’s set to produce some proper fun, punchy walls. This is the kind of swell that will have everyone keen. Just be aware, crowds are possible here on the good days, so paddle out ready to share.

Friday 11th September morning has a clean offshore again, but the swell drops right back to 3ft with lower energy (154), a bit ordinary, but still a chance for a quick paddle.

Overall, the waiting game pays off if you’re keen on the 5th, 6th, and especially the 10th. The rest of the run is pretty average, but those windows are genuine standouts for clean surf at Lacanau Ocean.

Rusty.

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