Hold your hand in a relax manner, when the hands are dripping wet, it a normal inclination to tighten your hang on golf club. In its place do the reverse thing. This might reduce the probability of the force by the close club.

You should be ready with the equipments so that if its rain you have no problem .you can bring gloves which are water proof, a jacket for saving you from rain and of course pants to the course. Then no golfers will be worried by the rain.