I am looking at doing a trip through this region and the beaches in France next year with my wife. I haven't really done much research besides watching clips. It seems like late summer is a good time for the French beaches but is there a better time to go? Late September seemed nice, less crowded than peak summer months but still nice and warm.
Never go to the beaches in Europe in August. It’s when all the Spanish, Portuguese, French, Italians, take their annual holidays. Everything much better Sept. Oct might get surf but hit/miss with stormy weather.
rent a car and make your way down from France (Hossegor, Biarritz, Anglet) to Spain. San Sebastian is great. The happy hour tapas/pinxchos crawl around the old town is fun. But there’s also plenty of small villages and mom n pop B&Bs throughout the region. Good seafood and food everywhere