Tennis in the Winter is not the same as tennis year round. Here are some key recommendations to follow for Winter Tennis Season: COLD Temperature Tennis [35–55 degrees F] Tennis Ball 1. The rubber in the ball hardens as temperatures drop, causing it to feel much firmer (sometimes almost like a rock) depending on the exact temperature and ball type. 2. The bounce decreases significantly, and the ball’s flight path becomes shorter, making rallies slower and timing more difficu