When's the ideal time to visit this region? I'm guessing about 2-3 weeks, either in early September or late May...is that about right?
I've flirted with a future trip to Atlantic France and have a very rough initial plan that includes the coast from the Cotentin peninsula (probably starting in Cherbourg) down to La Rochelle or a bit beyond. We would be renting a car and driving, sticking mostly to coastal areas and nearby offshore islands.
It seems there's plenty of lovely places there that won't get completely swamped with crushing crowds of international tourists (so my kinda places). Of course, I'm sure these delightful seaside spots are not unknown to the French, so a visit in August seems like a poor choice given my preferences (I'd expect a bit of French-only overtourism then). I'm wondering about the ideal timing sweet-spot, when the summer crowds of peak-season French tourists have mostly thinned out (or haven't packed in yet), kids are in school, the weather is pleasant and mostly warm, maybe occasionally hot, but the chances of debilitating summer heat-waves are low, and restaurants/shops/attractions are not completely shut down. My guess is right after September 1 or just before June 1.
Last September we went to Corsica (from the 2nd week in September to the first few days of October) and experienced lovely, near-perfect conditions that checked all my boxes very nicely - it was a wonderful trip! Since the west coast of France is not as far south as Corsica (and faces the Atlantic), I'd expect a bit less of the intense Mediterranean heat, and am guessing we would want to go in the first 2-3 weeks of September or maybe the last 2-3 weeks of May? If going in May, I'd be inclined to travel south to north; if going in September, from north to south.
For us, this trip would be in 2027 or beyond, since our dance cards for 2025-2026 are already quite full, and I haven't really "planned" anything beyond gazing over maps and looking at pictures of pretty places. We don't really need "beach time" although beautiful beaches are always nice (no laying around, roasting on lounge chairs for us); I know the water won't be comfy for swimming before peak summer warmth arrives, that's OK.
Is 2-3 weeks a reasonable pace (with a car) for this long stretch of French coastline?
Are my dates and is overall game plan sound, or am I missing some important event or consequence that should sway me to a different plan for this region or an adjustment to my timing? (We might be starting towards the west end of Normandy, but would avoid Normandy/D-Day sights around early June, we've done them and MSM before so would be blowing past them this time).
Thanks for any insights you can share.