Hi there, tell do your feet itch or burn? If so it could be a fungal infection, or do you wear trainers, in the warm weather your feet sweat and the skin cannot breathe and this can cause the skin to peel, or do you have dry skin? If so you need to moisturise them over night. It could also be eczema or psoriasis, so Sugarless Sue is absolutely right, get this checked out by your doctor. Dont worry though, it wont be anything serious I am sure, I think its just an annoying problem.
I used to have lots of problems with my feet, but now I moisturise my feet overnight, and during the day I use either footspray or powder to keep them dry, its a good routine to get into.
Love
Karen x