Recent National Weather Service and model consensus for Miami point to an overnight low near 73–76 °F on May 19, driven by typical mid-May maritime air masses with dew points in the low 70s and light easterly flow that limits nocturnal cooling. This places the 73 °F-or-below bin at the front of trader pricing, consistent with climatological averages where daily minima rise only gradually from 72 °F early in the month toward 76 °F later. The past week’s warm, humid regime—highs repeatedly reaching the upper 80s—has transitioned into an early wet-season pattern featuring scattered coastal showers that can enhance cloud cover and moderate temperature drops. Forecasters continue to monitor short-range guidance for any strengthening onshore breeze or clearer skies that could push the minimum a degree or two lower or higher before resolution.