ERA5 almanac comparison — 8 years of real data
Cancún vs Miami: weather in July
Cancún edges out Miami for sun in July: 11% clear historically versus 6% (8-year ERA5 average, a 5-point gap). Miami also sees measurably more rain than Cancún this month (75% vs 50% of days). Both are viable — Cancún is the safer bet.
Cancún
Mexico
- Clear days, July
- 11%
- Sample size
- n=248 days
- Avg high
- 88°F
- Early July (1st–15th)
- 12%
- Late July (16th–end)
- 10%
- Rain frequency
- 50% of days
Miami
FL
- Clear days, July
- 6%
- Sample size
- n=248 days
- Avg high
- 88°F
- Early July (1st–15th)
- 3%
- Late July (16th–end)
- 8%
- Rain frequency
- 75% of days
Frequently asked
Is Cancún or Miami warmer in July?
Equally warm by day in July. Cancún averages highs of 88°F (highs n=248 days); Miami averages highs of 88°F (highs n=248 days) (ERA5 2018–2025). Historical averages, not a forecast.
Does it rain more in Cancún or Miami in July?
Miami is measurably wetter than Cancún. Days with measurable rain: Cancún 50%, Miami 75% (n=248 and n=248 days). ERA5 2018–2025; historical, not a forecast.
Which is sunnier in July, Cancún or Miami?
Cancún edges out Miami for sun in July: 11% clear historically versus 6% (8-year ERA5 average, a 5-point gap). Miami also sees measurably more rain than Cancún this month (75% vs 50% of days). Both are viable — Cancún is the safer bet.
Compare Cancún 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.