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Surf Forecasts:
Grande Trait surfForecast / Loire Atlantique / France
16 Day Weather and Surf, issued 7 pm Saturday 16 May 2026 CESTForecast update in hr min s Forecast update imminent
Grande Trait surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Grande Trait sea temperature is
15.3° C
(Which is 1.2°C warmer than normal for this time of year)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 Thursday (May 21) at 2AM. The primary swell is predicted to be 1.3m and 13s 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 1.6m 14s and forecast to arrive on Wednesday (May 20) at 2PM. Winds are predicted to be onshore at the time the swell arrives.
| Wave Type | Time (CEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 2AM (Thu 21st May) | 4.5ft (1.3m) 13s |
| Best Surf | 2AM (Thu 21st May) | 4.5ft (1.3m) 13s |
| Most Powerful | 2PM (Wed 20th May) | 5ft (1.6m) 14s |
Table - best surf conditions forecast for Grande Trait over the next 16 days.
Updates in hr min s Forecast update imminent
Short Range ForecastModerate rain (total 12mm), heaviest on Mon night. Very mild (max 15°C on Tue morning, min 11°C on Sun morning). Winds increasing (light winds from the SSW on Sat night, strong winds from the SW by Mon night). | Days 5-7 Weather SummaryMostly dry. Warm (max 25°C on Fri afternoon, min 14°C on Tue night). Wind will be generally light. | ||||||||||||||||||||
Sunday 17 | Monday 18 | Tuesday 19 | Wednesday 20 | Thursday 21 | Friday 22 | Sat 23 | |||||||||||||||
Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | |
Swell Height Map |  |  |  |  |  |  |  |  | |||||||||||||
W 5 | W 6 | W 15 | W 13 | W 13 | WSW 12 | SW 5 | WSW 8 | WSW 8 | WSW 8 | WSW 10 | WSW 13 | WSW 13 | W 12 | WSW 12 | W 11 | WSW 11 | WSW 11 | WSW 10 | WSW 11 | W 10 | |
25 | 81 | 155 | 280 | 324 | 236 | 102 | 412 | 370 | 290 | 363 | 849 | 590 | 347 | 228 | 116 | 153 | 187 | 136 | 187 | 302 | |
Wind (km/h) | |||||||||||||||||||||
cross-on | cross | cross-on | cross-on | cross-on | on | on | cross-on | cross-on | on | on | on | glassy | cross-off | cross-off | cross-off | cross-off | cross-on | cross | cross | on | |
High Tide | 5:23AM4.79m | 5:43PM4.86m | 6:08AM4.75m | 6:27PM4.84m | 6:54AM4.58m | 7:13PM4.70m | 7:43AM4.30m | 8:03PM4.47m | 8:36AM3.97m | 8:59PM4.17m | 9:39AM3.65m | 10:08PM3.88m | 11:06AM3.42m | ||||||||
Low Tide | 11:35PM-0.09m | 11:58AM-0.05m | 00:23AM-0.16m | 12:45PM0.00m | 1:13AM-0.11m | 1:34PM0.16m | 2:05AM0.05m | 2:25PM0.38m | 3:00AM0.29m | 3:20PM0.62m | 3:58AM0.56m | 4:18PM0.86m | 4:59AM0.78m | 5:21PM1.04m | |||||||
 |  |  |  | |  |  | |  |  | | | | | | | | | | | | |
 | — | 6:31 | — | — | 6:30 | — | — | 6:28 | — | — | 6:28 | — | — | 6:26 | — | — | 6:24 | — | — | 6:24 | — |
 | 9:38 | — | — | 9:39 | — | — | 9:40 | — | — | 9:43 | — | — | 9:44 | — | — | 9:45 | — | — | 9:45 | — | 9:46 |
2 | 1 | — | — | 2 | — | 6 | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 13 | 12 | 13 | 13 | 12 | 13 | 14 | 15 | 15 | 14 | 15 | 16 | 16 | 17 | 23 | 23 | 20 | 25 | 26 | 22 | 25 |
9 | 8 | 9 | 7 | 9 | 10 | 8 | 11 | 10 | 11 | 13 | 13 | 14 | 15 | 22 | 21 | 17 | 23 | 25 | 21 | 25 | |
Swell 1 Height (m) Direction Period (s) | W 7 | W 6 | W 15 | W 13 | W 13 | WSW 12 | W 11 | W 16 | W 15 | W 14 | WSW 10 | WSW 13 | WSW 13 | W 12 | WSW 12 | W 11 | WSW 11 | WSW 11 | WSW 10 | WSW 11 | S 5 |
 kJ | 10 | 39 | 155 | 280 | 324 | 236 | 59 | 5 | 4 | 4 | 363 | 849 | 590 | 347 | 228 | 116 | 153 | 187 | 136 | 187 | 2 |
Swell 2 Height (m) Direction Period (s) | W 15 | W 13 | — | — | — | — | — | — | — | W 18 | WSW 14 | — | — | — | SSE 4 | — | — | — | WSW 12 | S 5 | — |
| kJ | 4 | 13 | — | — | — | — | — | — | — | 6 | 215 | — | — | — | 3 | — | — | — | 83 | 4 | — |
Swell 3 Height (m) Direction Period (s) | — | WSW 16 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | S 5 | — | — |
| kJ | — | 25 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 12 | — | — |
Wind waves Height (m) Direction Period (s) | W 5 | W 6 | W 7 | W 4 | W 4 | — | SW 5 | WSW 8 | WSW 8 | WSW 8 | — | — | — | — | — | SE 3 | SSE 4 | S 4 | — | W 4 | W 10 |
| kJ | 25 | 81 | 44 | 19 | 8 | — | 102 | 412 | 370 | 290 | — | — | — | — | — | 2 | 6 | 20 | — | 7 | 302 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 96 | 3 | 431 | 96 | 96 | 152 | 211 | 404 | 152 | 167 | 152 | 104 | 0 | 0 | 0 | 19 | 64 | 64 | 12 | 19 | 15 |
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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