ERA5 almanac comparison — 8 years of real data
Exuma vs Miami: weather in December
Exuma edges out Miami for sun in December: 37% clear historically versus 28% (8-year ERA5 average, a 9-point gap). Both are viable — Exuma is the safer bet.
Exuma
Bahamas
- Clear days, December
- 37%
- Sample size
- n=248 days
- Avg high
- 78°F
- Early December (1st–15th)
- 40%
- Late December (16th–end)
- 34%
- Rain frequency
- 35% of days
Miami
FL
- Clear days, December
- 28%
- Sample size
- n=248 days
- Avg high
- 77°F
- Early December (1st–15th)
- 35%
- Late December (16th–end)
- 21%
- Rain frequency
- 41% of days
Frequently asked
Is Exuma or Miami warmer in December?
Exuma runs warmer by day in December. Exuma averages highs of 78°F (highs n=248 days); Miami averages highs of 77°F (highs n=248 days) (ERA5 2018–2025). Historical averages, not a forecast.
Does it rain more in Exuma or Miami in December?
Days with measurable rain: Exuma 35%, Miami 41% (n=248 and n=248 days). ERA5 2018–2025; historical, not a forecast.
Which is sunnier in December, Exuma or Miami?
Exuma edges out Miami for sun in December: 37% clear historically versus 28% (8-year ERA5 average, a 9-point gap). Both are viable — Exuma is the safer bet.
Compare Exuma vs Miami in another month
All percentages are historical averages from the ERA5 reanalysis via Open-Meteo, 8 full years (2018–2025). “Clear” means avg high ≥ 72 °F, precipitation < 1 mm, and a non-precipitation weather code. This is history, not a forecast. The live forecast for any destination is on its own page and may differ from the long-run average. Data from Open-Meteo.