ERA5 almanac comparison — 8 years of real data
Mérida vs Outer Banks: weather in December
Mérida is the clear winner for sun in December: 53% of days historically clear versus just 0% in Outer Banks — a 53-point gap across 8 years of ERA5 data. This isn't close.
Mérida
Mexico
- Clear days, December
- 53%
- Sample size
- n=248 days
- Avg high
- 84°F
- Early December (1st–15th)
- 58%
- Late December (16th–end)
- 48%
- Rain frequency
- 21% of days
Outer Banks
NC
- Clear days, December
- 0%
- Sample size
- n=248 days
- Avg high
- 57°F
- Early December (1st–15th)
- 0%
- Late December (16th–end)
- 0%
- Rain frequency
- 27% of days
Frequently asked
Is Mérida or Outer Banks warmer in December?
Mérida runs warmer by day in December. Mérida averages highs of 84°F (highs n=248 days); Outer Banks averages highs of 57°F (highs n=248 days) (ERA5 2018–2025). Historical averages, not a forecast.
Does it rain more in Mérida or Outer Banks in December?
Days with measurable rain: Mérida 21%, Outer Banks 27% (n=248 and n=248 days). ERA5 2018–2025; historical, not a forecast.
Which is sunnier in December, Mérida or Outer Banks?
Mérida is the clear winner for sun in December: 53% of days historically clear versus just 0% in Outer Banks — a 53-point gap across 8 years of ERA5 data. This isn't close.
Compare Mérida vs Outer Banks 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.