
Surf Forecasts:
Ste Marguerite surf forecast from 11 Sep 2026:
- Best quality surf: Thursday 17 Sep, 2AM (local time) - 3ft (0.9m), 12s period, WNW swell with glassy winds.
- Most powerful swell: Thursday 17 Sep, 2AM (local time) - 3ft (0.9m), 12s period, WNW swell with 224 kJ wave energy.
- Next surfable swell (1★+): Saturday 12 Sep, 2AM (local time) - 2.5ft (0.7m), 9s period with W swell.
Best Forecast Surf Conditions for Ste Marguerite this week:
The surf forecast for Ste Marguerite over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Saturday (Sep 12) at 2AM. The primary swell is predicted to be 0.7m and 9s period. The wind is predicted to be offshore as the swell arrives.
The most powerful waves expected at Ste Marguerite in the next 16 days are 0.9m 12s and forecast to arrive on Thursday (Sep 17) at 2AM. Winds are predicted to be glassy at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.5m 4s period and expected on Wednesday (Sep 16) at 5AM.
| Wave Type | Time (CEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 2AM (Sat 12th Sep) | 2.5ft (0.7m) 9s |
| Best Surf | 2AM (Thu 17th Sep) | 3ft (0.9m) 12s |
| Most Powerful | 2AM (Thu 17th Sep) | 3ft (0.9m) 12s |
Table - best surf conditions forecast for Ste Marguerite over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let’s talk about what’s on offer right now.
The next couple of weeks at Ste Marguerite are looking pretty flat and average, to be honest. There’s a lot of small, weak, onshore-chop days to get through before we see something worthwhile. The first week is almost a write-off for proper surfing.
We kick off on Saturday the 12th with a tiny 2ft swell from the west, but the period is a short 8 seconds and the energy is weak. Morning has a clean cross-off breeze, so you could get a few grovelly waves, but it’s nothing exciting. That afternoon, the wind swings onshore, and it turns into a choppy mess. Sunday the 13th morning is the first little highlight: the swell is still only 2ft, but the period stretches out to 11 seconds and the wind is glassy – dead calm. That will make for some clean, if small, lines. The energy is still low, but for a small board and some patience, it’s the best of a quiet bunch.
After that, the whole week from Monday the 14th through to Thursday the 24th is dominated by tiny 1ft to 3ft west swell, short periods, and mostly cross-onshore winds. Most days score poorly. There’s a moment on Wednesday the 16th morning where the combined energy bumps up a bit with a clean cross-off wind, but with only 3ft at 10 seconds, it’s still very average. The rest of that week is just lumpy and choppy.
Now, here is the standout. If you can wait, mark Friday the 25th morning on your calendar. The swell jumps to 4ft from the west, and the period goes long at 14 seconds – that’s proper groundswell. The combined energy is strong, and the wind is glassy, dead calm. That is the morning to be out there. The swell is still a manageable size for most surfers, not too big for beginners, but with that long period and glassy conditions, Ste Marguerite should be firing with clean, lined-up waves. The crowd factor is ‘sometimes’ busy, so you might have a bit of company, but for those conditions, it’ll be worth it. Just remember that a long period swell like this can break a bit straight on a beach setup, but as a point break, Ste Marguerite is well suited.
The following few days are smaller again, with clean offshore winds on the 26th and 27th, but nothing approaching that Friday morning peak.
So, in short: don't bother for the first week and a half. There is a long gap of poor to average conditions. The one to aim for is Friday the 25th of September. That morning is your true standout. Keep an eye on the forecast, as long-range calls can shift, but right now it looks like a beauty.
Rusty.
Short Range ForecastMostly dry. Warm (max 25°C on Mon afternoon, min 16°C on Fri night). Wind will be generally light. | Days 5-7 Weather SummarySome drizzle, heaviest during Thu afternoon. Warm (max 26°C on Mon night, min 14°C on Tue night). Winds decreasing (fresh winds from the NNW on Tue night, calm by Wed night). | ||||||||||||||||||
Saturday 12 | Sunday 13 | Monday 14 | Tuesday 15 | Wednesday 16 | Thursday 17 | ||||||||||||||
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) | W 9 | W 8 | W 8 | W 10 | W 11 | W 11 | W 10 | W 10 | W 9 | W 9 | W 8 | W 8 | WNW 6 | W 10 | W 10 | WNW 12 | W 11 | W 10 | W 10 |
Wave Graph | |||||||||||||||||||
74 | 46 | 46 | 66 | 82 | 82 | 75 | 68 | 41 | 40 | 23 | 33 | 82 | 125 | 148 | 224 | 110 | 71 | 46 | |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | cross-off | cross-on | cross-off | glassy | cross-on | off | cross-off | cross-on | cross-off | cross-on | cross-on | cross-off | cross-off | cross-on | glassy | cross-on | cross-on | cross |
High Tide | 6:01AM4.63m | 6:15PM4.87m | 6:31AM4.63m | 6:46PM4.75m | 7:01AM4.55m | 7:16PM4.54m | 7:30AM4.38m | 7:46PM4.25m | 8:00AM4.15m | 8:18PM3.92m | 8:33AM3.85m | 8:53PM3.57m | |||||||
Low Tide | 00:08AM-0.24m | 12:23PM-0.16m | 00:46AM-0.19m | 1:01PM-0.09m | 1:23AM-0.01m | 1:39PM0.10m | 1:59AM0.27m | 2:17PM0.38m | 2:35AM0.62m | 2:56PM0.74m | 3:14AM1.00m | 3:39PM1.11m | 3:59AM1.36m | ||||||
— | 7:41 | — | — | 7:43 | — | — | 7:43 | — | — | 7:45 | — | — | 7:47 | — | — | 7:48 | — | — | |
8:30 | — | 8:28 | — | — | 8:25 | — | — | 8:23 | — | — | 8:22 | — | — | 8:20 | — | — | 8:17 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | — |
Temp °C | 19 | 16 | 20 | 20 | 18 | 21 | 21 | 20 | 25 | 26 | 22 | 22 | 20 | 16 | 18 | 18 | 17 | 18 | 17 |
Feels °C | 17 | 15 | 18 | 18 | 17 | 19 | 20 | 21 | 24 | 26 | 22 | 21 | 14 | 13 | 14 | 12 | 14 | 14 | 12 |
Swell 1 Height (m) Direction Period (s) | W 9 | W 8 | W 8 | W 10 | W 11 | W 11 | W 10 | W 10 | W 9 | W 9 | W 8 | W 11 | W 10 | W 10 | W 13 | WNW 12 | W 11 | W 10 | W 10 |
74 | 46 | 46 | 66 | 82 | 82 | 75 | 68 | 41 | 40 | 23 | 10 | 19 | 125 | 14 | 224 | 110 | 71 | 46 | |
Swell 2 Height (m) Direction Period (s) | — | W 18 | W 16 | W 13 | — | — | WNW 3 | — | — | — | W 12 | W 11 | — | — | — | — | — | — | — |
— | 6 | 5 | 14 | — | — | 1 | — | — | — | 3 | 22 | — | — | — | — | — | — | — | |
Swell 3 Height (m) Direction Period (s) | — | W 18 | — | WNW 3 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
— | 6 | — | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Wind waves Height (m) Direction Period (s) | — | — | — | NW 3 | — | — | — | — | — | — | — | W 8 | WNW 6 | — | W 10 | N 3 | — | W 3 | W 4 |
— | — | — | 1 | — | — | — | — | — | — | — | 33 | 82 | — | 148 | 6 | — | 2 | 15 | |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 0 | 0 | 93 | 0 | 0 | 181 | 0 | 0 | 16 | 63 | 95 | 347 | 95 | 95 | 95 | 0 | 105 | 425 | 95 |
Best forecast wave conditions in Loire Atlantique | |||||||||||||||||||
Best forecast wave conditions in France | |||||||||||||||||||
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Information about the Ste Marguerite Surf forecast
The above surf forecast table for Ste Marguerite provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Ste Marguerite can be found by selecting the local surf guide option on the grey menu. Our Ste Marguerite 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 (Ste Marguerite) 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 Ste Marguerite 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.
Ste Marguerite is 7 km (4 miles) from the city of La Baule-Escoublac. If you plan a holiday in Loire Atlantique, look for hotels and other accommodation in La Baule-Escoublac. La Baule-Escoublac has rooms for a wide range of budgets as well as car hire and transport links.










