Surf Forecasts:
Grande Trait surf forecast from 18 Sep 2026:
- Best quality surf: Saturday 26 Sep, 2AM (local time) - 3.5ft (1.0m), 16s period, WSW swell with offshore winds.
- Most powerful swell: Saturday 26 Sep, 2AM (local time) - 3.5ft (1.0m), 16s period, WSW swell with 561 kJ wave energy.
- Next surfable swell (1★+): Sunday 20 Sep, 5AM (local time) - 2.5ft (0.7m), 11s period with W swell.
Best Forecast Surf Conditions for Grande Trait this week:
The surf forecast for Grande Trait over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Sunday (Sep 20) at 5AM. The primary swell is predicted to be 0.7m and 11s period. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Grande Trait in the next 16 days are 1.0m 16s and forecast to arrive on Saturday (Sep 26) at 2AM. Winds are predicted to be offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.5m 3s period and expected on Thursday (Sep 24) at 2AM.
| Wave Type | Time (CEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 5AM (Sun 20th Sep) | 2.5ft (0.7m) 11s |
| Best Surf | 2AM (Sat 26th Sep) | 3.5ft (1.0m) 16s |
| Most Powerful | 2AM (Sat 26th Sep) | 3.5ft (1.0m) 16s |
Table - best surf conditions forecast for Grande Trait over the next 16 days.
Short Range ForecastMostly dry. Warm (max 26°C on Mon afternoon, min 16°C on Fri night). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Warm (max 28°C on Wed afternoon, min 18°C on Tue morning). Wind will be generally light. | ||||||||||||||||||
Saturday 19 | Sunday 20 | Monday 21 | Tuesday 22 | Wednesday 23 | Thursday 24 | ||||||||||||||
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 13 | W 12 | W 12 | W 11 | W 11 | W 11 | W 11 | W 11 | W 12 | W 12 | W 12 | W 11 | W 11 | WSW 15 | W 14 | W 13 | W 12 | W 12 | W 11 |
Wave Graph  | |||||||||||||||||||
 kJ | 215 | 141 | 127 | 123 | 116 | 116 | 121 | 89 | 97 | 69 | 42 | 37 | 64 | 77 | 257 | 219 | 104 | 66 | 37 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | on | cross-on | cross | cross-off | cross-on | off | off | off | off | cross-off | off | off | off | off | off | cross-off | cross-off | cross-off |
High Tide | 9:37PM3.22m | 10:05AM3.21m | 10:47PM2.92m | 11:57AM3.00m | 2:02AM2.92m | 2:27PM3.19m | 3:03AM3.19m | 3:14PM3.51m | 3:38AM3.50m | 3:47PM3.84m | 4:07AM3.82m | 4:17PM4.17m | 4:35AM4.13m | ||||||
Low Tide | 4:57AM1.66m | 5:41PM1.69m | 6:14AM1.80m | 7:05PM1.71m | 7:36AM1.71m | 8:21PM1.51m | 8:43AM1.44m | 9:16PM1.17m | 9:32AM1.09m | 9:59PM0.81m | 10:13AM0.74m | 10:36PM0.47m | |||||||
 | | |  | | | | | | | | | | |  | | | | | |
 | — | 7:50 | — | — | 7:52 | — | — | 7:52 | — | — | 7:54 | — | — | 7:56 | — | — | 7:56 | — | — |
 | 8:15 | — | 8:14 | — | — | 8:12 | — | — | 8:09 | — | — | 8:07 | — | — | 8:06 | — | — | 8:04 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 16 | 17 | 17 | 17 | 17 | 21 | 21 | 17 | 26 | 26 | 18 | 27 | 27 | 19 | 28 | 27 | 19 | 28 | 27 |
Feels °C | 13 | 16 | 15 | 16 | 17 | 19 | 19 | 16 | 22 | 22 | 12 | 23 | 24 | 16 | 24 | 24 | 15 | 23 | 23 |
Swell 1 Height (m) Direction Period (s) | W 13 | W 12 | W 12 | W 11 | W 11 | W 11 | W 11 | W 11 | W 12 | W 12 | W 12 | W 11 | W 11 | W 11 | W 14 | W 13 | W 12 | W 12 | W 11 |
| kJ | 215 | 141 | 127 | 123 | 116 | 116 | 121 | 89 | 97 | 69 | 42 | 37 | 64 | 58 | 257 | 219 | 104 | 66 | 37 |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | W 19 | WSW 15 | WNW 10 | — | — | SE 4 | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | 7 | 77 | 75 | — | — | 1 | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | ENE 2 | — | NE 2 | ENE 2 | — | ENE 2 | NE 3 | — | NE 3 | E 3 | — | ESE 3 |
| kJ | — | — | — | — | — | — | — | 1 | — | 1 | 1 | — | 1 | 2 | — | 4 | 4 | — | 2 |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 92 | 104 | 104 | 3 | 0 | 104 | 0 | 0 | 0 | 0 | 63 | 63 | 0 | 0 | 0 | 0 | 74 | 19 | 74 |
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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