Surf Forecasts:
Grande Trait surf forecast from 23 Aug 2026:
- Most powerful swell: Friday 28 Aug, 11AM (local time) - 11ft (3.5m), 11s period, WSW swell with 2,728 kJ wave energy.
Best Forecast Surf Conditions for Grande Trait this week:
The most powerful waves expected at Grande Trait in the next 16 days are 3.5m 11s and forecast to arrive on Friday (Aug 28) at 11AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.6m 3s period and expected on Sunday (Aug 23) at 8AM.
| Wave Type | Time (CEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 11AM (Fri 28th Aug) | 11ft (3.5m) 11s |
Table - best surf conditions forecast for Grande Trait over the next 16 days.
Short Range ForecastModerate rain (total 10mm), heaviest on Mon afternoon. Warm (max 27°C on Sun afternoon, min 15°C on Sun morning). Winds decreasing (fresh winds from the ENE on Sun night, calm by Mon night). | Days 4-6 Weather SummaryModerate rain (total 15mm), heaviest on Thu night. Warm (max 22°C on Wed afternoon, min 18°C on Wed night). Winds increasing (light winds from the S on Wed morning, near gales from the SW by Thu night). | ||||||||||||||||||||
Sunday 23 | Monday 24 | Tuesday 25 | Wednesday 26 | Thursday 27 | Friday 28 | Saturday 29 | |||||||||||||||
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) | W 9 | WSW 12 | SW 10 | WSW 10 | WSW 9 | SW 9 | SW 8 | WSW 8 | W 10 | SW 6 | SW 6 | WSW 6 | WSW 9 | WSW 8 | SW 8 | WSW 11 | WSW 10 | WSW 9 | WSW 9 | WSW 8 | WSW 7 |
Wave Graph  | |||||||||||||||||||||
 kJ | 6 | 15 | 27 | 18 | 16 | 20 | 11 | 6 | 8 | 43 | 46 | 52 | 486 | 443 | 589 | 2728 | 1803 | 645 | 329 | 211 | 114 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | off | cross-off | cross | on | on | cross-on | on | cross-on | on | cross-on | on | on | on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on |
High Tide | 2:53PM3.26m | 3:27AM3.25m | 3:43PM3.54m | 4:06AM3.52m | 4:18PM3.84m | 4:37AM3.78m | 4:49PM4.13m | 5:06AM4.03m | 5:17PM4.39m | 5:34AM4.25m | 5:46PM4.59m | 6:02AM4.42m | 6:15PM4.72m | ||||||||
Low Tide | 8:11AM1.64m | 8:53PM1.47m | 9:16AM1.40m | 9:48PM1.18m | 10:05AM1.09m | 10:32PM0.86m | 10:45AM0.78m | 11:10PM0.55m | 11:22AM0.50m | 11:45PM0.30m | 11:56AM0.28m | 00:19AM0.12m | 12:31PM0.15m | 00:53AM0.04m | |||||||
 |  |  | |  |  | | |  | | | |  | | |  | | | | |  | |
 | 7:15 | — | — | 7:16 | — | — | 7:18 | — | — | 7:18 | — | — | 7:20 | — | — | 7:22 | — | — | 7:22 | — | — |
 | — | — | 9:07 | — | — | 9:05 | — | — | 9:02 | — | — | 9:00 | — | — | 9:00 | — | 8:58 | — | — | 8:55 | — |
mm | — | — | 2 | — | 7 | — | — | — | 1 | — | 1 | 2 | — | — | 6 | 2 | 2 | 2 | 1 | — | — |
Temp °C | 19 | 27 | 27 | 19 | 26 | 23 | 20 | 20 | 20 | 20 | 22 | 21 | 20 | 20 | 19 | 19 | 19 | 19 | 18 | 19 | 18 |
Feels °C | 13 | 21 | 20 | 13 | 23 | 24 | 21 | 19 | 20 | 20 | 21 | 19 | 17 | 16 | 15 | 12 | 13 | 14 | 13 | 14 | 14 |
Swell 1 Height (m) Direction Period (s) | W 9 | WSW 12 | SW 10 | WSW 10 | WSW 9 | SW 9 | S 4 | WSW 8 | W 10 | SW 6 | SW 6 | W 8 | — | WSW 8 | — | — | WSW 10 | — | — | — | WSW 7 |
| kJ | 6 | 15 | 27 | 18 | 16 | 20 | 3 | 6 | 8 | 43 | 46 | 5 | — | 443 | — | — | 1803 | — | — | — | 114 |
Swell 2 Height (m) Direction Period (s) | SE 4 | W 8 | — | W 12 | SSE 5 | W 9 | SW 8 | W 11 | SW 8 | W 9 | W 9 | — | — | — | — | — | — | — | — | — | — |
| kJ | 1 | 1 | — | 3 | 2 | 2 | 11 | 2 | 2 | 7 | 6 | — | — | — | — | — | — | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | W 16 | W 10 | — | — | — | — | W 12 | W 8 | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | 5 | 2 | — | — | — | — | 3 | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | ENE 3 | ENE 3 | ENE 3 | E 3 | — | S 5 | W 3 | SW 3 | SW 4 | — | — | WSW 6 | WSW 9 | WSW 8 | SW 8 | WSW 11 | WSW 10 | WSW 9 | WSW 9 | WSW 8 | WSW 8 |
| kJ | 9 | 4 | 8 | 8 | — | 7 | 2 | 3 | 6 | — | — | 52 | 486 | 322 | 589 | 2728 | 1168 | 645 | 329 | 211 | 75 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 199 | 74 | 165 | 390 | 508 | 69 | 167 | 167 | 182 | 19 | 229 | 63 | 152 | 152 | 211 | 374 | 347 | 372 | 374 | 425 | 104 |
Best forecast wave conditions in Loire Atlantique | |||||||||||||||||||||
Best forecast wave conditions in France | |||||||||||||||||||||
Header Global | |||||||||||||||||||||
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FREE! Surf-Forecast.com widget for your website
The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Grande Trait surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.
Information about the Grande Trait Surf forecast
The above surf forecast table for Grande Trait provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Grande Trait can be found by selecting the local surf guide option on the grey menu. Our Grande Trait 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 (Grande Trait) 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 Grande Trait 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.
Grande Trait 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.
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