summer weather on the Lemovicensis vs Podiensis

[BrianLCrabtree]

Generally speaking, would you say the Vezelay route is cooler than the Le Puy route during summer? Having just completed the Primitivo (fantastic!) and to Muxia and Finisterre, I'm thinking of a much longer route next year, starting in Vezelay or Le Puy, going to SJPP, up to Irun, and the Camino del Norte. I'd like to finish by middle or end of October, which means there is no way to avoid walking during August. I'd like to take typical weather into account as one factor in the choice of starting point, Vezelay vs Le Puy, and would appreciate input from those who have walked both routes. Thanks.