Having an idea of the average amount of rainfall can a help a traveler plan when to visit a city. While the average annual rainfall in Miami is 66.04 inches, the monthly average varies by season, with summer seeing the most rain.
Predicting rainfall in Miami is by no means an exact science. While there are averages, they can vary drastically by month. Miami's proximity to the Gulf of Mexico and the Atlantic Ocean is a catalyst for high humidity and above-average rainfall.
Besides June, monthly rainfall is typically lighter in the first half of the year. According to The Weather Channel, the following is the average rainfall for these months: January, 1.88 inches; February, 2.07 inches; March, 2.56 inches; April, 3.36 inches; May, 5.52 inches; and June, 8.54 inches.
The second half of the year is wetter by far, with August being the wettest month of the year. According to the Weather Channel, the following is typical for these months: July, 5.79 inches; August, 8.63 inches; September, 8.38 inches; October, 6.19 inches; November, 3.43 inches; and December, 2.18 inches.
