Marathon, FL has a tropical climate year-round with hot and humid summers and mild winters. Temperatures average in the low 80s during summer months, while winter temperatures can drop to around 60 degrees Fahrenheit. Rainfall is abundant during the warmer months, while humidity remains high throughout the year. Despite its humid climate, Marathon's beautiful beaches and coastal waters make it an ideal spot for fishing and other outdoor activities. During the winter months, visitors may even experience a few cold fronts with temperatures plummeting down into the 50s or even 40s for a few days.
Marathon, Florida gets 45 inches of rain, on average, per year. The US average is 38 inches of rain per year.
Marathon averages 0 inches of snow per year. The US average is 28 inches of snow per year.
On average, there are 250 sunny days per year in Marathon. The US average is 205 sunny days.
Marathon gets some kind of precipitation, on average, 99 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 90 degrees
Winter Low: the January low is 63
Rain: averages 45 inches of rain a year
Snow: averages 0 inches of snow a year