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South Florida's Unique Climate

South Florida has two seasons: the five-month rainy season from June through October, when 70 percent of the year's rain falls, and the seven-month dry season from November through May. Rainfall is the primary source for replenishing groundwater drinking supplies and sustaining natural landscapes.

"No-Name" Storms and Water in Swales

Many people avidly watch for hurricanes, but did you know that a "no-name" storm lasting several hours or days might bring as much flooding as a named tropical system or hurricane? New residents may be alarmed to see standing water in streets or driveway swales. In other states that could be cause for concern, but in our region, it's something you may see after an intense summer shower.

Rainfall Monitoring

The South Florida Water Management District closely monitors weather conditions throughout the year using an extensive rainfall monitoring network. When rain is scarce, we keep water levels stable in canals, wetlands and lakes to prevent saltwater intrusion and protect groundwater supplies. In anticipation of heavy rainfall, we open flood gates and lower water levels in canals.

Check the Weather in Your Neighborhood

On our website, you can check to see how much rain has fallen in your neighborhood or in a neighborhood hundreds of miles away. Watch how rain or lack of rain changes water levels in lakes, canals and waterways throughout the region. You can even check the status of water control gates to see if they are open or closed. This is a tool used by fishing enthusiasts because open gates often bring in fish.


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SFWMD Headquarters: 3301 Gun Club Road, West Palm Beach, Florida 33406
561-686-8800 | 1-800-432-2045 (Florida Only)