ERA5 almanac comparison — 8 years of real data
Mexico City vs Tucson: weather in August
Tucson is the clear winner for sun in August: 55% of days historically clear versus just 2% in Mexico City — a 53-point gap across 8 years of ERA5 data. Mexico City also sees measurably more rain than Tucson this month (89% vs 24% of days). This isn't close.
Mexico City
Mexico
- Clear days, August
- 2%
- Sample size
- n=248 days
- Avg high
- 73°F
- Early August (1st–15th)
- 1%
- Late August (16th–end)
- 2%
- Rain frequency
- 89% of days
Tucson
AZ
- Clear days, August
- 55%
- Sample size
- n=248 days
- Avg high
- 99°F
- Early August (1st–15th)
- 50%
- Late August (16th–end)
- 59%
- Rain frequency
- 24% of days
Frequently asked
Is Mexico City or Tucson warmer in August?
Tucson runs warmer by day in August. Mexico City averages highs of 73°F (highs n=248 days); Tucson averages highs of 99°F (highs n=248 days) (ERA5 2018–2025). Historical averages, not a forecast.
Does it rain more in Mexico City or Tucson in August?
Mexico City is measurably wetter than Tucson. Days with measurable rain: Mexico City 89%, Tucson 24% (n=248 and n=248 days). ERA5 2018–2025; historical, not a forecast.
Which is sunnier in August, Mexico City or Tucson?
Tucson is the clear winner for sun in August: 55% of days historically clear versus just 2% in Mexico City — a 53-point gap across 8 years of ERA5 data. Mexico City also sees measurably more rain than Tucson this month (89% vs 24% of days). This isn't close.
Compare Mexico City vs Tucson 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.