If there was ever a `` hurricane season '' in the south Atlantic , it would most likely happen during the opposite of the north Atlantic season , from December to May with mid-March being the peak when the oceans are warmest in the Southern Hemisphere . If a `` hurricane season '' were to be demarcated in the South Atlantic , it would most likely be the opposite of the North Atlantic season , from November to the end of April with mid-March being the peak when the oceans are warmest in the Southern Hemisphere .