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Grande Trait surfForecast / Loire Atlantique / France
12 Day Weather and Surf, issued 7 am Wednesday 27 Aug 2025 CEST
Best Forecast Surf Conditions for Grande Trait this week:
The surf forecast for Grande Trait over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Wednesday (Sep 03) at 5AM. The primary swell is predicted to be 1.1m and 10s period. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Grande Trait in the next 12 days are 1.9m 14s and forecast to arrive on Wednesday (Aug 27) 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+) | 5AM (Wed 3rd Sep) | 3.5ft (1.1m) 10s |
| Best Surf | 5AM (Wed 3rd Sep) | 3.5ft (1.1m) 10s |
| Most Powerful | 2PM (Wed 27th Aug) | 6ft (1.9m) 14s |
Table - best surf conditions forecast for Grande Trait over the next 12 days.
Short Range Forecast Moderate rain (total 19mm), heaviest on Thu night. Warm (max 20°C on Wed afternoon, min 16°C on Wed night). Winds increasing (light winds from the W on Wed night, strong winds from the SW by Thu night). | Days 3-6 Weather Summary Heavy rain (total 22mm), heaviest during Sun night. Warm (max 20°C on Sat afternoon, min 16°C on Mon morning). Winds decreasing (strong winds from the SW on Sat afternoon, light winds from the WSW by Sun morning). | ||||||||||||||||||||
Wednesday 27 | Thursday 28 | Friday 29 | Saturday 30 | Sunday 31 | Monday 01 | Tuesday 02 | |||||||||||||||
| AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | |
Rating (10 max) | |||||||||||||||||||||
Swell Height Map |  |  |  |  |  |  |  | ||||||||||||||
| Wave Height (m) & direction (?) | |||||||||||||||||||||
| Period(s) (?) | 15 | 14 | 13 | 12 | 12 | 12 | 8 | 8 | 10 | 10 | 8 | 9 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 10 | 10 |
Wave (?)Graph  | |||||||||||||||||||||
| Energy (?) | 1613 | 2091 | 1660 | 794 | 781 | 887 | 522 | 545 | 540 | 428 | 768 | 929 | 1030 | 1475 | 1152 | 1008 | 883 | 763 | 452 | 553 | 245 |
Wind (km/h) | |||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | on | on | cross | cross- on | cross- on | on | cross- on | cross- on | cross- on | on | on | cross- on | on | cross- on | on | cross- on | cross- on | cross- on | cross- on | cross- on | cross |
High Tide / height (m) | 7:46PM 4.33 | 8:01AM 4.13 | 8:16PM 4.09 | 8:32AM 3.93 | 8:49PM 3.80 | 9:06AM 3.68 | 9:26PM 3.49 | 9:49AM 3.40 | 10:16PM 3.19 | 10:50AM 3.15 | 11:40PM 2.96 | 12:53PM 3.05 | 2:09AM 3.04 | ||||||||
Low Tide / height (m) | 2:13PM 0.41 | 2:34AM 0.53 | 2:49PM 0.67 | 3:09AM 0.83 | 3:27PM 0.98 | 3:47AM 1.16 | 4:10PM 1.29 | 4:33AM 1.47 | 5:06PM 1.57 | 5:35AM 1.70 | 6:19PM 1.72 | 6:55AM 1.76 | 7:43PM 1.66 | ||||||||
Wednesday 27 | Thursday 28 | Friday 29 | Saturday 30 | Sunday 31 | Monday 01 | Tuesday 02 | |||||||||||||||
| Sunrise | 7:20 | - | - | 7:22 | - | - | 7:22 | - | - | 7:24 | - | - | 7:26 | - | - | 7:26 | - | - | 7:28 | - | - |
| Sunset | - | 9:00 | - | - | 8:58 | - | - | 8:55 | - | - | 8:53 | - | - | 8:52 | - | - | 8:50 | - | - | 8:47 | - |
 |  |  |  | | |  | |  | |  | | | | | | |  | | |  | |
Rain (mm) | - | - | 3 | 2 | 4 | 5 | 4 | 1 | - | - | 3 | 1 | 1 | 2 | 7 | 2 | 2 | 4 | 2 | 1 | - |
| Temp. °C | 19 | 20 | 19 | 18 | 19 | 18 | 18 | 18 | 18 | 19 | 20 | 20 | 18 | 18 | 18 | 17 | 18 | 17 | 17 | 18 | 18 |
| Feels °C (?) | 18 | 17 | 17 | 14 | 14 | 14 | 14 | 11 | 14 | 17 | 15 | 17 | 17 | 16 | 15 | 11 | 12 | 12 | 15 | 15 | 15 |
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Live Wave Height (m)
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Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
Recent Eyeball Surf Reports for Loire Atlantique
Wind reports 14 km away suggest it is still onshore at Grande Trait (moderate winds from the SSW at Saint -Nazaire -Montoir). 2.4m 15s groundswell from the W with a 1.0m 15s groundswell from the WSW. 2 swells combining so expect closeout sets.
Actual: 52 min ago
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 12 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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