Overview: Port Charlotte, FL Port Charlotte, FL, is known for its humid subtropical climate, graced with hot summers and mild winters. Daytime temperatures peak at an average high of 34 °C (92 °F) in July, cooling down to approximately 23 °C (74 °F) in January. The rainy season typically occurs from June to September, contributing significantly to the annual precipitation, while drier months are experienced from October to May. With consistent rainfall patterns, Port Charlotte witnesses a variation in precipitation from 47 mm (1.85 in) during November to 226 mm (8.89 in) in June. When planning your year-round activities, expect comfortable night temperatures ranging from a crisp 11 °C (51 °F) in January to a warmer 23 °C (73 °F) in August.