Key Biscayne, FL has a tropical climate with warm temperatures year-round and moderate humidity. The average temperature is around 78°F, with summer highs reaching into the mid-90s and winter lows rarely dropping below 60°F. Rainfall is abundant throughout the year, typically coming in short bursts or extended periods of showers. The area also experiences frequent thunderstorms during the wet season from April to October. High winds are common during the dry season, which runs from November through March. All in all, the climate in Key Biscayne is pleasant for outdoor activities and swimming almost any time of year.
Key Biscayne, Florida gets 53 inches of rain, on average, per year. The US average is 38 inches of rain per year.
Key Biscayne averages 0 inches of snow per year. The US average is 28 inches of snow per year.
On average, there are 248 sunny days per year in Key Biscayne. The US average is 205 sunny days.
Key Biscayne gets some kind of precipitation, on average, 125 days per year. Precipitation is rain, snow, sleet, or hail that falls to the ground. In order for precipitation to be counted you have to get at least .01 inches on the ground to measure.
Weather Highlights
Summer High: the July high is around 88 degrees
Winter Low: the January low is 62
Rain: averages 53 inches of rain a year
Snow: averages 0 inches of snow a year