ERA5 almanac comparison — 8 years of real data
Aruba vs Charlotte: weather in December
Aruba edges out Charlotte for sun in December: 12% clear historically versus 2% (8-year ERA5 average, a 10-point gap). Both are viable — Aruba is the safer bet.
What you are reading: 8-year historical averages, not a forecast.
Either destination can still surprise you this specific December. For this
week’s actual forecast, each destination links to its live page below.
Aruba
AW
- Clear days, December
- 12%
- Sample size
- n=248 days
- Avg high
- 84°F
- Early December (1st–15th)
- 13%
- Late December (16th–end)
- 12%
Charlotte
NC
- Clear days, December
- 2%
- Sample size
- n=248 days
- Avg high
- 55°F
- Early December (1st–15th)
- 2%
- Late December (16th–end)
- 2%
- Rain frequency
- 30% of days
Compare Aruba vs Charlotte 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 7-day outlook for any destination is on its own page and may differ from the long-run average. Data from Open-Meteo.