
Surf Forecasts:
Lacanau Ocean surf forecast from 12 Sep 2026:
- Best quality surf: Saturday 19 Sep, 2AM (local time) - 5ft (1.6m), 14s period, WNW swell with glassy winds.
- Most powerful swell: Saturday 19 Sep, 5AM (local time) - 5ft (1.6m), 14s period, WNW swell with 989 kJ wave energy.
- Next surfable swell (1★+): Sunday 13 Sep, 5AM (local time) - 3ft (0.9m), 10s period with WNW swell.
Best Forecast Surf Conditions for Lacanau Ocean this week:
The surf forecast for Lacanau Ocean over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Sunday (Sep 13) at 5AM. The primary swell is predicted to be 0.9m and 10s period with a secondary swell of 0.4m and 4s. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Lacanau Ocean in the next 16 days are 1.6m 14s and forecast to arrive on Saturday (Sep 19) at 5AM. Winds are predicted to be glassy at the time the swell arrives.
| Wave Type | Time (CEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 5AM (Sun 13th Sep) | 3ft (0.9m) 10s |
| Best Surf | 2AM (Sat 19th Sep) | 5ft (1.6m) 14s |
| Most Powerful | 5AM (Sat 19th Sep) | 5ft (1.6m) 14s |
Table - best surf conditions forecast for Lacanau Ocean over the next 16 days.
The Lowdown
Right, folks, Rusty here. Let’s have a look at what’s shaking on the Aquitaine coast for the next couple of weeks. It’s a bit of a mixed bag, with some real promise if you can wait for the right windows.
The forecast starts off a little flat and messy, but there’s some proper groundswell lining up for the end of next week and into the following week. We are looking at a couple of standout sessions that will be worth blocking out your diary for.
First up, we have a glimmer of hope on Sunday the 13th morning at Lacanau-Ocean. The waves are a modest but clean 3.6 ft from the WNW, and the period is a juicy 13 seconds – that’s proper groundswell energy. The real kicker is a light NE cross-off breeze. It’ll be clean and lined-up. Wave energy is moderate (367). The water is sitting at 72.5 °F, which is much warmer than normal for this time of year – a nice surprise.
Monday the 14th morning keeps the clean theme going with a light ENE offshore wind. The swell is a smaller 3.3 ft from the WNW, with an 11-second period (good energy at 217), so it’s a good option for a fun, uncrowded session.
Now, here’s where it gets interesting. Looking ahead to Monday the 21st of September, the morning is a real head-turner. We’ve got a solid 4.6 ft WNW swell with a long 14-second period, producing strong wave energy (746). The wind is a light NNE cross-off, keeping the faces clean. This is a serious contender for the best wave of the forecast.
But the true standout, the one for the experienced crew, lands on Tuesday the 22nd of September morning. Lacanau is looking at a beefy 5.9 ft swell from the WNW. The period is a very long 13 seconds and the combined energy is pumping at 1093. The wind is reading as glassy – absolutely dead calm, offshore from the ESE. This is the pick of the trip for competent surfers; it’ll be powerful and clean, though the size will be too much for beginners. Crowds are likely here, as they often are when it’s on.
After that, the swell tails off through the end of the month, with onshore winds and choppy conditions taking over.
So, to sum it up: the first week is about picking the clean windows for fun, small waves. The second week has two serious standouts: the 21st and the 22nd. The 22nd morning, with that glassy, 5.9 ft groundswell, is the one to aim for if you want the best of the batch.
Stay stoked.
Short Range ForecastMostly dry. Warm (max 28°C on Mon night, min 19°C on Sun morning). Wind will be generally light. | Days 5-7 Weather SummaryLight rain (total 3mm), mostly falling on Thu night. Warm (max 20°C on Tue night, min 16°C on Wed morning). Winds decreasing (fresh winds from the NNW on Tue night, light winds from the NW by Thu morning). | ||||||||||||||||||
Sunday 13 | Monday 14 | Tuesday 15 | Wednesday 16 | Thursday 17 | Friday 18 | ||||||||||||||
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) | WNW 10 | WNW 13 | WNW 12 | WNW 11 | WNW 11 | WNW 10 | NW 10 | WNW 9 | W 9 | NW 6 | WNW 7 | WNW 9 | WNW 10 | WNW 11 | WNW 11 | WNW 10 | WNW 9 | WNW 14 | WNW 14 |
Wave Graph | |||||||||||||||||||
55 | 367 | 317 | 285 | 214 | 160 | 46 | 46 | 39 | 145 | 168 | 292 | 346 | 460 | 397 | 240 | 133 | 215 | 975 | |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | cross | cross-off | off | cross-on | cross-off | glassy | cross-on | cross-on | cross | cross-on | cross-on | cross-on | cross-on | on | cross | cross-on | glassy |
High Tide | 6:37AM4.07m | 6:52PM4.17m | 7:08AM3.94m | 7:24PM3.92m | 7:38AM3.75m | 7:55PM3.62m | 8:07AM3.50m | 8:26PM3.30m | 8:38AM3.23m | 9:02PM2.98m | 9:19AM2.96m | 9:59PM2.69m | |||||||
Low Tide | 00:13AM-0.11m | 12:27PM-0.04m | 00:48AM0.03m | 1:03PM0.11m | 1:23AM0.26m | 1:40PM0.34m | 1:58AM0.55m | 2:18PM0.63m | 2:35AM0.87m | 3:00PM0.96m | 3:18AM1.19m | 3:50PM1.27m | 4:13AM1.47m | ||||||
— | 7:39 | — | — | 7:41 | — | — | 7:41 | — | — | 7:43 | — | — | 7:45 | — | — | 7:46 | — | — | |
8:22 | — | 8:20 | — | — | 8:17 | — | — | 8:15 | — | — | 8:15 | — | — | 8:13 | — | — | 8:10 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 3 | — | — | — |
Temp °C | 21 | 21 | 25 | 25 | 23 | 27 | 28 | 24 | 24 | 20 | 17 | 18 | 18 | 18 | 18 | 19 | 17 | 17 | 17 |
Feels °C | 19 | 20 | 21 | 22 | 21 | 24 | 25 | 23 | 22 | 18 | 14 | 15 | 15 | 17 | 16 | 18 | 14 | 14 | 15 |
Swell 1 Height (m) Direction Period (s) | WNW 8 | WNW 13 | WNW 12 | WNW 11 | WNW 11 | WNW 10 | W 9 | WNW 9 | W 9 | W 8 | WNW 7 | WNW 9 | WNW 10 | WNW 11 | WNW 11 | WNW 10 | WNW 9 | WNW 9 | WNW 14 |
34 | 367 | 317 | 285 | 214 | 160 | 42 | 46 | 39 | 12 | 168 | 292 | 346 | 460 | 397 | 240 | 133 | 161 | 975 | |
Swell 2 Height (m) Direction Period (s) | WNW 10 | — | — | NNW 4 | NNW 4 | — | NW 10 | NW 10 | NW 9 | SW 6 | WNW 10 | — | WNW 12 | — | — | — | W 12 | WNW 14 | — |
55 | — | — | 5 | 3 | — | 46 | 23 | 20 | 5 | 72 | — | 117 | — | — | — | 3 | 215 | — | |
Swell 3 Height (m) Direction Period (s) | WNW 14 | — | — | — | — | — | — | W 13 | W 12 | — | — | — | — | — | — | — | — | WNW 11 | — |
41 | — | — | — | — | — | — | 3 | 12 | — | — | — | — | — | — | — | — | 12 | — | |
Wind waves Height (m) Direction Period (s) | NNW 4 | — | NW 2 | — | — | — | N 3 | — | — | NW 6 | — | — | — | — | — | — | — | — | — |
9 | — | 2 | — | — | — | 2 | — | — | 145 | — | — | — | — | — | — | — | — | — | |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 286 | 0 | 0 | 161 | 0 | 0 | 161 | 0 | 2 | 713 | 185 | 134 | 211 | 134 | 62 | 185 | 172 | 0 | 116 |
Best forecast wave conditions in Gironde | |||||||||||||||||||
Best forecast wave conditions in France | |||||||||||||||||||
Header Global | |||||||||||||||||||
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Information about the Lacanau Ocean Surf forecast
The above surf forecast table for Lacanau Ocean provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Lacanau Ocean can be found by selecting the local surf guide option on the grey menu. Our Lacanau Ocean 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 (Lacanau Ocean) 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 Lacanau Ocean 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.
Lacanau Ocean is 38 km (24 miles) from Arcachon. If you plan a holiday in Gironde, look for hotels and other accommodation in Arcachon. Arcachon has rooms for a wide range of budgets as well as car hire and transport links.










