I sweat a lot when I exercise. After an hour of running at medium intensity (~150bpm avg HR) in 20°C @ 50% humidity, I am literally drenched in sweat. I can wring my clothes and sweat will pour from it. It's difficult to find clothes that are comfortable to wear for my long trips.
Fair, the other stuff should help though, especially cloths that dry fast. Anything cotton is just going to act like a sponge.