This post will give you an idea of what the weather should be like in Miami during December. This time of year is a fabulous time to visit with generally comfortable temperatures and just a few rainy days.
December begins with daytime high temperatures that tend to be near 80F (26 C) but will cool down into the mid 70s F (about 24 C) by New Years Eve.
A few of the warmer afternoons, early in the month, can reach into the low to mid 80s F (about 28C) with the all time high temperature for Miami during December at 89 F (31.7 C).
Late night and early morning low temperatures will mostly be in the upper 60s F (20 C) early in the month falling to the mid-60s F (17 C) near the end of the month.
A few of the colder mornings, especially late in December, can dip down into the low 50s F (11 C). The all-time low temperature for Miami during December is 30F (-1C).
Clouds and Rain
December offers a good deal of sunny weather with skies being clear or at least partly sunny on about 21 days this month.
About 7-8 days will see some rainfall, however, only about 1 day, on average, will see significant rainfalls of 0.5 inches (about 13 mm) or more.
Daylight, Wind, and Ocean
Daylight hours are fairly constant through December, averaging a bit over 10.5 hours each day.
Generally, the wind will be gentle to moderate (8-18 mph 13-29 kph) but can briefly be fresh (19-24 mph 30-39 kph).
If you are heading for the beach you can expect ocean temperatures near 79 F (26 C)early in the month and near 77F (25 C) by the end of the month.