Not that it's directly related... but I once saw a documentary on PBS where they explained how evaporation worked. It's pretty amazing because it's not totally obvious.
It so happens that the sun is a much bigger source of evaporation that wind. The photons give energy to the molecules at the surface which gain a charge which causes them to jump off the surface. Pretty weird stuff I know.
So, if you plan on drying film outdoors, a quiet sunny location is better than a wind swept one