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Surf Forecasts:
Lacanau Ocean surf forecast from 4 Sep 2026:
- Best quality surf: Saturday 5 Sep, 11PM (local time) - 5ft (1.5m), 13s period, WNW swell with offshore winds.
- Most powerful swell: Saturday 5 Sep, 11PM (local time) - 5ft (1.5m), 13s period, WNW swell with 711 kJ wave energy.
- Next surfable swell (1★+): Saturday 5 Sep, 5AM (local time) - 3ft (0.9m), 9s 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 Saturday (Sep 05) at 5AM. The primary swell is predicted to be 0.9m and 9s 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 1.5m 13s and forecast to arrive on Saturday (Sep 05) at 11PM. Winds are predicted to be offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.3m 2s period and expected on Sunday (Sep 06) at 2AM.
| Wave Type | Time (CEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 5AM (Sat 5th Sep) | 3ft (0.9m) 9s |
| Best Surf | 11PM (Sat 5th Sep) | 5ft (1.5m) 13s |
| Most Powerful | 11PM (Sat 5th Sep) | 5ft (1.5m) 13s |
Table - best surf conditions forecast for Lacanau Ocean over the next 16 days.
The Lowdown
Alright folks, Rusty here with a look at what’s shaping up for our local stretch.
Alright, so the next couple of weeks are a bit of a mixed bag. We’ve got some clean windows, but a fair bit of chop and onshore wind to work through too. The standout session looks like it’ll be Saturday the 5th of September morning.
Let’s start with Lacanau Ocean. The water is sitting at 74°F, which is much warmer than normal for this time of year – a solid 4°F above average, so you can leave the thick rubber at home.
Friday 4th September afternoon: Forget it. We’ve got a cross-shore breeze at 12 mph and a weak, short-period 0.7m (2ft) WNW swell. The energy is weak (78), and it’s just messy. Poor conditions.
Saturday 5th September morning: This is our window. The wind swings light offshore from the NE at only 6 mph. That’s a major positive, giving us clean lines on a 1.0m (3ft) WNW swell. The energy jumps to a moderate 269, and conditions are clean. This is the one to aim for.
Saturday 5th September afternoon: The wind backs to the N and picks up to 12 mph, turning cross-shore. The swell builds to 1.3m (4ft) with a lovely long period of 13 seconds (a proper groundswell), and the energy gets strong (587), but that cross-breeze will put a chop on it.
Sunday 6th September morning: A light S wind keeps it cross-shore, with a 1.1m (4ft) WNW swell at 11 seconds. Moderate energy (319), but there’s a light ripple on the surface. Just okay.
Sunday 6th September afternoon: Onshore wind from the W at 9 mph kills it. Avoid.
Monday 7th September: Light cross-onshore winds all day. The morning has a tiny 0.6m (2ft) swell, but the period is a very long 16 seconds – a long-period groundswell that will be tricky and straight at this beach. Not worth it.
Tuesday 8th September morning: Cloudy with a N cross-breeze. 1.2m (4ft) swell at 11 seconds, moderate energy (370). Decent size but poor conditions make it a no-go.
Tuesday 8th September afternoon: This is your backup plan. A NNE breeze at 9 mph gives us a clean cross-offshore flow. The swell is 1.4m (5ft) from the WNW with moderate energy (436) and an 11-second period. It’ll be clean and has the best size of the first week.
Wednesday 9th to Friday 11th: A stretch of onshore and cross-onshore winds with choppy conditions. Not worth paddling out.
Saturday 12th September morning: A little pulse of cleaner air with a NE cross-offshore breeze. Small though – only 0.7m (2ft) with weak energy (76). Just a fun little wave for the log.
Sunday 13th September morning: Another clean-ish window with a NE cross-offshore breeze. 1.0m (3ft) swell at 11 seconds and moderate energy (226). Surfable but nothing special.
Monday 14th to Tuesday 15th: Tiny and poor. A morning of glassy conditions on the 15th, but the swell is a pathetic 0.4m (1ft) with energy at 33. Not worth getting wet for.
Wednesday 16th September: Onshore and small. A long-period 12-second groundswell, but the wind is wrong and the size is tiny.
Thursday 17th and Friday 18th September: Strong cross-offshore winds return on Friday morning (16 mph), cleaning up a 1.3m (4ft) WNW swell with moderate energy (352). A decent size but the wind is strong. Something to keep an eye on.
Saturday 19th September morning: The last good look in the window. Strong cross-offshore NE wind at 16 mph again, cleaning up a 1.3m (4ft) WNW swell. Energy is moderate (360). The wind is strong, so it will be a bit of a battle, but the waves will have some push.
So, to wrap it up: the clear winner is Saturday 5th September morning at Lacanau Ocean. Light offshore wind, clean 1.0m (3ft) swell. Your second best is Tuesday 8th September afternoon, with a bit more size and clean cross-offshore flow. The long-range stuff around the 18th and 19th looks promising but that wind is going to be a factor.
Stay stoked.
Rusty.
Short Range ForecastMostly dry. Warm (max 30°C on Sat night, min 19°C on Sat morning). Wind will be generally light. | Days 5-7 Weather SummaryLight rain (total 4mm), mostly falling on Tue afternoon. Warm (max 21°C on Mon afternoon, min 17°C on Tue afternoon). Wind will be generally light. | |||||||||||||||||||
Fri 4 | Saturday 5 | Sunday 6 | Monday 7 | Tuesday 8 | Wednesday 9 | Thursday 10 | ||||||||||||||
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) | WNW 9 | WNW 9 | WNW 9 | WNW 13 | WNW 12 | WNW 11 | WNW 11 | WNW 10 | W 16 | W 14 | W 12 | WNW 11 | WNW 11 | WNW 10 | NW 9 | NW 11 | WNW 11 | WNW 10 | NW 10 | NW 9 |
Wave Graph  | ||||||||||||||||||||
 kJ | 77 | 79 | 161 | 587 | 534 | 319 | 218 | 109 | 172 | 361 | 480 | 370 | 436 | 197 | 125 | 334 | 211 | 141 | 79 | 41 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross | cross-off | cross | off | cross | on | on | cross-on | cross-on | cross-on | cross | cross-off | cross-on | cross | cross-on | cross | on | on | on |
High Tide | 10:46PM3.02m | 11:33AM3.03m | 00:40AM2.94m | 1:19PM3.12m | 2:10AM3.11m | 2:36PM3.42m | 3:14AM3.40m | 3:33PM3.77m | 4:05AM3.69m | 4:21PM4.07m | 4:48AM3.92m | 5:03PM4.28m | ||||||||
Low Tide | 4:16PM0.93m | 4:49AM1.13m | 5:36PM1.10m | 6:14AM1.24m | 7:08PM1.05m | 7:42AM1.10m | 8:29PM0.79m | 8:52AM0.81m | 9:29PM0.46m | 9:45AM0.48m | 10:17PM0.16m | 10:30AM0.20m | 10:59PM-0.05m | |||||||
 |  |  | |  | | | | | | |  |  | |  | | | | | | |
 | — | — | 7:30 | — | — | 7:31 | — | — | 7:33 | — | — | 7:33 | — | — | 7:35 | — | — | 7:35 | — | — |
 | 8:37 | — | — | 8:35 | — | — | 8:32 | — | — | 8:31 | — | — | 8:30 | — | — | 8:28 | — | — | 8:25 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | 3 | — | 1 | — | — | — | — | — |
Temp °C | 24 | 20 | 20 | 26 | 30 | 26 | 24 | 23 | 20 | 21 | 20 | 20 | 20 | 18 | 18 | 18 | 18 | 18 | 19 | 20 |
Feels °C | 22 | 19 | 21 | 24 | 28 | 25 | 23 | 23 | 22 | 21 | 20 | 21 | 19 | 17 | 16 | 14 | 16 | 18 | 18 | 18 |
Swell 1 Height (m) Direction Period (s) | WNW 9 | WNW 9 | WNW 9 | WNW 13 | WNW 12 | WNW 11 | WNW 11 | WNW 10 | W 5 | W 14 | W 12 | WNW 11 | WNW 11 | WNW 10 | NW 9 | NW 11 | WNW 11 | WNW 10 | NW 10 | NW 9 |
| kJ | 77 | 79 | 161 | 587 | 534 | 319 | 218 | 109 | 25 | 361 | 480 | 370 | 436 | 197 | 125 | 334 | 211 | 141 | 79 | 41 |
Swell 2 Height (m) Direction Period (s) | — | NW 4 | WNW 14 | — | — | — | — | W 19 | W 16 | WNW 9 | — | — | — | WNW 13 | WNW 12 | W 9 | W 8 | — | W 8 | W 8 |
| kJ | — | 7 | 108 | — | — | — | — | 7 | 172 | 106 | — | — | — | 17 | 75 | 14 | 5 | — | 10 | 10 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | WNW 9 | — | — | — | — | — | W 9 | — | — | — | W 13 | W 12 |
| kJ | — | — | — | — | — | — | — | — | 32 | — | — | — | — | — | 60 | — | — | — | 3 | 3 |
Wind waves Height (m) Direction Period (s) | NW 2 | — | — | — | ENE 2 | — | — | W 4 | — | WNW 5 | — | — | — | — | — | — | — | — | — | — |
| kJ | 1 | — | — | — | 1 | — | — | 11 | — | 22 | — | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 161 | 24 | 0 | 70 | 0 | 2 | 185 | 185 | 62 | 116 | 116 | 48 | 0 | 54 | 54 | 211 | 54 | 88 | 211 | 88 |
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.
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