Buenos Aires experiences a mild climate year-round, with temperatures gradually warming up during the spring months of September and October. By November, highs reach into the mid-30s, setting the stage for a hot and humid summer that peaks in January and February, with temperatures frequently soaring above 35°C. As autumn arrives in March, temperatures begin to moderate, but still remain relatively warm until May, when they start to drop significantly, often dipping below freezing by June and July. The winter months are cool and temperate, with temperatures rarely rising above 20°C. By late summer, the heat returns, ushering in another sweltering season that persists through December.