National Weather Service Miami Rain Chances map for South Florida on Tuesday, September 29, 2026
MIAMI, Florida – The National Weather Service in Miami has a Coastal Flood Advisory in effect until 2 p.m. Tuesday for coastal Miami-Dade, Broward, and Palm Beach counties due to king tides.
A Coastal Flood Statement then takes effect from 2 p.m. Tuesday through Wednesday afternoon.
Minor to moderate coastal flooding is expected along the southeast Florida Atlantic coast near and during high tide today, with isolated minor flooding possible along the Florida Bay shoreline of far south Miami-Dade and mainland Monroe County through Wednesday afternoon.
Heavy rainfall this morning also triggered short-term Flood Advisories for urban flooding in parts of Miami-Dade and Broward counties.
King tides are producing above-average high water levels, with flooding of low-lying coastal roads, parking lots, and parks possible within about 1.5 to 2 hours of high tide. Do not walk or drive through flooded roadways. Saltwater is corrosive and can damage vehicles.
High tide times along the Atlantic coast (times vary slightly by exact location):
Today will be partly sunny with a 50–70% chance of showers and thunderstorms, highs in the mid-80s, and light winds. Rain chances are highest across the metro areas (around 69% in Miami and Fort Lauderdale). Overnight lows will be in the mid-to-upper 70s. Similar shower chances continue Wednesday.
Tuesday through Wednesday
Coastal flooding remains possible around high tide cycles through Wednesday as the king tide period winds down, though impacts should become more isolated and minor after this afternoon. Scattered showers and thunderstorms will continue, with the combination of rain and elevated tides increasing the chance of localized urban flooding in poor-drainage areas. Marine conditions remain relatively light with seas of 1–3 feet.
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