August is an interesting month for Key West / Marquesas Flats fishing, anything can happen.
Tarpon, Bonefish, Permit and almost all of this before lunch....a early start is important.
Early evening is another option especially Tarpon fishing and can be super for Fly Fishing Tarpon with the right low wind velocity conditions.
This is the time of year that Flats Guides get together and take turns poling......before lunch.
Quiet in the Marquesas in August....only a few " Child Guides " around this time of year and it a chance to enjoy the peaceful atol.