ERA5 almanac comparison — 8 years of real data
Cancún vs Orlando: weather in January
Essentially a tie in January: Cancún is 21% clear historically, Orlando is 20% clear (8-year ERA5 average) — within the noise. Avg high 79°F vs 69°F. Cancún also sees measurably more rain than Orlando this month (50% vs 25% of days). Pick based on flight time or price, not weather — the weather won't decide this one for you.
Cancún
MX
- Clear days, January
- 21%
- Sample size
- n=248 days
- Avg high
- 79°F
- Early January (1st–15th)
- 22%
- Late January (16th–end)
- 21%
- Rain frequency
- 50% of days
Orlando
FL
- Clear days, January
- 20%
- Sample size
- n=248 days
- Avg high
- 69°F
- Early January (1st–15th)
- 19%
- Late January (16th–end)
- 20%
- Rain frequency
- 25% of days
Compare Cancún vs Orlando 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.