Radwańska began her season at the Shenzhen Open, where she defeated Aleksandra Krunic, Zhang Shuai, Wang Qiang, Anna-Lena Friedsam and Alison Riske (all in straight sets), to win her 18th WTA Title. As a result of her performance she was able to move to fourth in the world rankings. At the Australian Open, Radwańska advanced to the semifinals, losing to Serena Williams. Next, she played at the Qatar Open in Doha, where she defeated Kateryna Bondarenko, Monica Niculescu and Roberta Vinci to reach her fifth semifinal at the tournament. She lost to Carla Suárez Navarro in two sets, but moved up to world No. 3. In the BNP Paribas Ope, she defeated Dominika Cibulková, Monica Niculescu, Jelena Janković and Petra Kvitová. In doing so, she regained her world No. 2 status. She lost a tight match with a second-set tiebreaker to Serena Williams in the semifinals. At the Miami Open she defeated Alizé Cornet and Madison Brengle before losing to Timea Bacsinszky in the fourth round.