Miami, FL weather in December
Expect mild, often humid weather with some rain in Miami in December, with highs near 78°F and lows near 64°F. Rain falls on about 8 days. It is one of the coolest months in Miami.
- Normal high
- 78°F
- Normal low
- 64°F
- Wet days
- 8
- 2.4 in total
- Muggy days
- 13
- dew point 65°F+
How December changes from start to finish
| December 1 | December 31 | |
|---|---|---|
| Normal high | 80°F | 77°F |
| Normal low | 66°F | 62°F |
| Chance of a wet day | 27% | 26% |
| Sunrise / sunset | 6:50 am / 5:29 pm | 7:07 am / 5:40 pm |
| Daylight | 10.7 h | 10.6 h |
Chance of a wet day: average for the first and last 7 days of the month. Times are local clock time (Eastern Time).
A typical December day
- 6 am67°Fdew point 61°F
- 9 am71°Fdew point 62°F
- Noon76°Fdew point 62°F
- 3 pm76°Fdew point 61°F
- 6 pm73°Fdew point 62°F
- 9 pm70°Fdew point 62°F
NOAA hourly normals (local standard time) from Miami Intl Airport (8 mi away); average wind 8 mph; clear or few clouds in 50% of daytime hours, mostly cloudy or overcast in 33%.
What kind of days to expect
- Comfortable dayshigh 65-80°F and dew point under 60°F10 of 31
- Beach dayshigh 80-95°F, under 0.05 in of rain, afternoon wind under 15 mph12 of 31
- Hot dayshigh 90°F or more0 of 31
- Muggy daysdaily mean dew point 65°F or more13 of 31
- Wet daysat least 0.01 in of rain or melted snow8 of 31
- Notable rainat least 0.10 in4 of 31
- Freezing nightslow 32°F or below0 of 31
Average days per December, counted from daily records for each year 1991-2020.
Rain in December
Normal precipitation is 2.4 in; a dry December brings about 0.9 in and a wet one about 3.1 in (25th and 75th percentiles). About 1 day brings half an inch or more, and about 1 an inch or more.
How December varies from year to year
- Warmest December, 1991-20202016: average high 83°F
- Coolest December2010: average high 71°F
- Wettest December2015: 9.8 in
- Driest December1991: 0.2 in
- Highest reading89°F (December 10, 2009)
- Lowest reading36°F (December 14, 2010)
From the station's daily records with NOAA quality flags removed; most recent date shown when a reading repeats.
December compared with November and January
| November | December | January | |
|---|---|---|---|
| Normal high | 81°F | 78°F | 76°F |
| Normal low | 68°F | 64°F | 61°F |
| Wet days | 9 | 8 | 8 |
| Comfortable days | 5 | 10 | 13 |
| Daylight | 10.9 h | 10.6 h | 10.7 h |
Highs change by -3°F from November and -2°F into January.
Nearby alternatives in December
- Cooler: Deltona, FL226 mi · high 72°F · 7 wet days
How Miami ranks in December
- Normal high9th warmest of 378 cities; 2nd of 23 in Florida
- Wet days144th driest of 378
- Comfortable days77th most of 340
What to pack for Miami in December
- A rain jacket or umbrella – rain on about 8 days
- A swimsuit – about 12 beach days
Heating and cooling
December has 26 heating degree days and 219 cooling degree days (base 65°F), 5% of the year's total heating and cooling demand.
Questions
How hot is Miami in December?
The normal high is 78°F and the normal low is 64°F. From 1991 to 2020 the hottest December reading was 89°F (December 10, 2009).
Does it rain a lot in Miami in December?
About 8 days in December have at least 0.01 in of precipitation, and the normal total is 2.4 in. The wettest December in 1991-2020 was in 2015 (9.8 in); the driest was in 1991 (0.2 in).
Is December a good time to visit Miami?
December ranks 4th of 12 months on our comfort score for Miami (58 out of 100). It has about 10 comfortable days. The best months are January, February and March.
Where the numbers come from
- Temperature, rain, frost dates and humidity and wind by hour: Miami Intl Airport (USW00012839), 7.7 mi W of the city center, 29 ft . NOAA normals and daily records, 1991-2020.
- Snowfall and snow depth: Hialeah (USC00083909), 6.5 mi WNW of the city center, 12 ft . NOAA normals and daily records, 1991-2020.
- Cloud cover: Miami Kendall Tamiami Exec Airport (USW00012888), 17 mi WSW of the city center, 10 ft . NOAA normals and daily records, 1991-2020.
- Daily humidity and wind: Miami International Airport (722020-12839), 7.7 mi W of the city center, 5 ft . Hourly observations, 1991-2020.