Grande Trait Surf Forecast

/ Loire Atlantique (9 surf breaks) /

France (410 surf breaks)

Surf Forecasts:

Grande Trait surfForecast / Loire Atlantique / France

12 Day Weather and Surf, issued 7 pm Saturday 18 Oct 2025 CEST

Forecast 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 16.4° C
(Which is normal for this time of year)

Best Forecast Surf Conditions for Grande Trait this week:

The most powerful waves expected at Grande Trait in the next 12 days are 4.0m 13s and forecast to arrive on Thursday (Oct 23) at 8PM. Winds are predicted to be cross-onshore at the time the swell arrives.

Wave Type	Time (CEST) & Date	Wave Height & Period
Next good surf (1 star+)	-	-
Best Surf	-	-
Most Powerful	8PM (Thu 23rd Oct)	13ft (4.0m) 13s

Table - best surf conditions forecast for Grande Trait over the next 12 days.

Updates in hr min s Forecast update imminent

12 Days Hourly

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	Short Range Forecast Moderate rain (total 14mm), heaviest on Sun afternoon. Very mild (max 17°C on Sun afternoon, min 15°C on Sat night). Winds increasing (light winds from the SSE on Sat night, near gales from the WSW by Mon afternoon).										Days 3-6 Weather Summary Heavy rain (total 35mm), heaviest during Tue night. Very mild (max 19°C on Wed night, min 14°C on Thu night). Winds increasing (moderate winds from the WSW on Tue night, gales from the WSW by Thu morning).
		Sunday 19			Monday 20			Tuesday 21			Wednesday 22			Thursday 23			Friday 24			Sat 25
	Night	AM	PM	Night	AM	PM	Night	AM	PM	Night	AM	PM	Night	AM	PM	Night	AM	PM	Night	AM	PM
Rating (10 max)	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0
Swell Height Map See all maps
Wave Height (m) & direction (?)	WSW	WSW	SW	WSW	WSW	WSW	WSW	WSW	WSW	WSW	WSW	WSW	SW	WSW	WSW	WSW	WSW	WSW	WSW	W	W
Period(s) (?)	10	11	6	9	9	11	12	11	10	9	8	9	9	11	12	13	12	12	12	11	11
Wave Graph (?)
kJ (?)	35	40	328	800	1189	3030	1986	1008	591	464	381	591	1065	1897	4206	4298	2922	2287	1757	1060	682
Wind (km/h)	SSE	S	SW	SW	SW	WSW	WSW	W	W	S	WSW	WSW	SW	WSW	WSW	WSW	WSW	WSW	W	W	W
Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy	cross	cross- on	on	on	on	cross- on	cross- on	cross- on	cross- on	cross- on	on	on	on	cross- on	cross- on	on	cross- on	on	cross- on	cross- on	cross- on
High Tide / height (m)	4:23AM 4.05		4:31PM 4.27	4:47AM 4.22		4:56PM 4.38		5:10AM 4.35	5:21PM 4.43		5:34AM 4.44	5:47PM 4.43		6:00AM 4.46	6:15PM 4.37		6:28AM 4.41	6:44PM 4.24		6:57AM 4.28	7:14PM 4.04
Low Tide / height (m)	10:04PM 0.52	10:19AM 0.53		10:41PM 0.35	10:57AM 0.36		11:16PM 0.25	11:32AM 0.26		11:49PM 0.24	12:06PM 0.25		12:21AM 0.31	12:39PM 0.32		12:54AM 0.45	1:13PM 0.47		1:28AM 0.66	1:49PM 0.70

		Sunday 19			Monday 20			Tuesday 21			Wednesday 22			Thursday 23			Friday 24			Sat 25
Sunrise	-	8:32	-	-	8:33	-	-	8:34	-	-	8:36	-	-	8:37	-	-	8:38	-	-	8:41	-
Sunset	-	-	7:15	-	-	7:13	-	-	7:10	-	-	7:09	-	-	7:07	-	-	7:06	-	-	7:04

Rain (mm)	-	-	3	3	1	3	2	1	1	15	5	1	4	6	-	-	2	2	3	-	-
Temp. °C	16	16	17	17	16	16	15	16	16	17	17	18	19	18	16	15	14	14	14	15	15
Feels °C (?)	14	11	10	14	9	7	8	11	11	12	13	13	11	8	8	7	5	6	6	8	9

Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)
Wind Speed (km/h)

Recent Eyeball Surf Reports for Loire Atlantique

Wind Update Cross-off wind 14 km from Grande Trait has become light (light winds from the ESE at Saint -Nazaire -Montoir). Waves should be turning clean at Grande Trait. 0.4m 10s swell from the W with a 0.3m 8s swell from the WSW and a 0.3m 3s local chop from the SSE. 3 swells combining to make bigger set waves.
43 minutes ago Grande Trait

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Actual: 43 min ago

9 km/h

ESE

Clean

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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.