Indeed, when I did my big fast it was in the summer. But now, I must say that generally speaking, I am more comfortable in winter than in the summer. My body is quite adapted to winters, and I have a lot of practice with winters since I live in Canada. Because of this fact and because I want to profit from the summer harvests as much as possible, I might consider some kind of fasting only at the later part of the fall. I will for sure ask advices from people like you, in this forum.
And again my best wished to those embarking on the self-healing journeys.