Miami weather in December
Miami averages 25°C by day and 19°C at night in December, with the sea at 24°C and about 87 mm of rain in the month. That is about 2°C cooler than November.
Day
25°C
Night
19°C
Sea
24°C
Rain
87 mm
Flight from London
9h
What December feels like
December is hot in Miami: proper beach weather.
The sea is 24°C: fine for swimming without a wetsuit.
Expect some rainy spells: about 87 mm falls in the month.
That is 16°C warmer than an average December day in London.
Of the 56 sun destinations we track, Miami is the #30 warmest in December.
Want it warmer in December?
These are hotter than Miami this month for at most an hour and a half more flying:
Miami weather by month
December is highlighted. Compare with November and January, or see the full year in Miami.
| Month | Day | Night | Sea | Rain |
|---|---|---|---|---|
| January | 24°C | 17°C | 22°C | 80 mm |
| February | 25°C | 20°C | 24°C | 63 mm |
| March | 26°C | 20°C | 25°C | 68 mm |
| April | 28°C | 22°C | 26°C | 79 mm |
| May | 29°C | 23°C | 29°C | 157 mm |
| June | 30°C | 25°C | 30°C | 237 mm |
| July | 31°C | 26°C | 32°C | 141 mm |
| August | 31°C | 26°C | 32°C | 164 mm |
| September | 30°C | 25°C | 31°C | 213 mm |
| October | 29°C | 24°C | 28°C | 156 mm |
| November | 27°C | 21°C | 26°C | 99 mm |
| December | 25°C | 19°C | 24°C | 87 mm |
Miami in December: quick answers
Is Miami hot in December?
December is hot in Miami: proper beach weather. Average highs are 25°C and lows 19°C.
Can you swim in Miami in December?
The sea is 24°C: fine for swimming without a wetsuit.
Does it rain in Miami in December?
Expect some rainy spells: about 87 mm falls in the month.
What is the warmest month in Miami?
August, at an average high of 31°C. The coolest is January at 24°C.
How long is the flight to Miami from the UK?
About 9h direct from London, estimated from the 7,105 km distance. Check your airline for exact times.
Still choosing? See where is hot in December for every destination ranked by temperature, sea and flight time.
How we measured this
Averages of every day in December from 2016 to 2025, from the Open-Meteo historical weather archive (ECMWF ERA5 reanalysis). Sea temperature is the 2023 to 2025 average from the Open-Meteo marine archive. Rain is the average monthly total. Reanalysis describes an area about 25 km across, so sheltered resorts can run a degree or two warmer. Flight time is a distance-based estimate from London Heathrow.
Planning Miami in December?
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