South Florida Wet Season Facts • On average, South Florida's wet season begins around May 20 and ends around October 13, lasting for about 21 weeks. • Typically, about two-thirds of annual rains fall during the wet season, or approximately 35 inches out of 52 inches. • June is usually South Florida's wettest month. • Since 1932, virtually all wet seasons have produced 2 to 4 feet of rainfall. • The wet season has three general phases: o Memorial Day weekend through July 4 weekend, which are typically the wettest six weeks of the year. o Early July through mid-August, which are hotter and often drier. o Late August through October, which are characterized by highly variable rainfall mainly due to tropical activity and cold fronts.