Warm in Dec
26°C average high
avg high · 21° at night
25°C+ on 8 in 10 days
Florida, USA
Miami weather in December
Is it warm? Yes. December in Miami is warm: afternoons average 25°C and nights 20°C. Most days (80%) peak between 23°C and 27°C.
Warm · average high
25°C
25°C or more on about six in ten days; 20°C or more on almost every day.
- Average low20°overnight
- Sea24°average, 2023–2025
- Rainy days772 mm in the month
- SkyOften cloudy50% cloud · 27% clear days
How warm it really gets
Every December afternoon from 2011–2025: 465 days. Most (80%) peaked between 23° and 27°.
December, year by year
The average December high in each year. The warmest, 2021, averaged 26°C; the coolest, 2020, 24°C.
Compared with home
Average December highs. Expect rain on about 7 days (72 mm in a typical month).
- Miami25°
- Cork10°
- Dublin9°
- London9°
- Belfast8°
- Manchester8°
- Glasgow7°
Warmer in December, not much further
Flying times are estimates from Dublin; Miami is about 8h 45m.
Hot in Dec
31°C average high
avg high · 22° at night
25°C+ on almost every day
Warm in Dec
26°C average high
avg high · 16° at night
25°C+ on 7 in 10 days
Air: ERA5 reanalysis via Open-Meteo, 2011–2025. Sea: Copernicus Marine analysis via Open-Meteo, 2023–2025. Rainy day = 2 mm or more. Clear day = average cloud cover of 30% or less. These are averages of past weather, not a forecast. Methodology