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SunnyDays

ERA5 almanac comparison — 8 years of real data

Mexico City vs Sedona: weather in October

Sedona is the clear winner for sun in October: 50% of days historically clear versus just 20% in Mexico City — a 30-point gap across 8 years of ERA5 data. Mexico City also sees measurably more rain than Sedona this month (50% vs 16% of days). This isn't close.

What you are reading: 8-year historical averages, not a forecast. Either destination can still surprise you this specific October. For the actual forecast right now, each destination links to its live page below.

Mexico City

Mexico

Clear days, October
20%
Sample size
n=248 days
Avg high
74°F
Early October (1st–15th)
10%
Late October (16th–end)
29%
Rain frequency
50% of days

Sedona

AZ

Clear days, October
50%
Sample size
n=248 days
Avg high
74°F
Early October (1st–15th)
62%
Late October (16th–end)
39%
Rain frequency
16% of days

Frequently asked

Is Mexico City or Sedona warmer in October?

Equally warm by day in October. Mexico City averages highs of 74°F (highs n=248 days); Sedona averages highs of 74°F (highs n=248 days) (ERA5 2018–2025). Historical averages, not a forecast.

Does it rain more in Mexico City or Sedona in October?

Mexico City is measurably wetter than Sedona. Days with measurable rain: Mexico City 50%, Sedona 16% (n=248 and n=248 days). ERA5 2018–2025; historical, not a forecast.

Which is sunnier in October, Mexico City or Sedona?

Sedona is the clear winner for sun in October: 50% of days historically clear versus just 20% in Mexico City — a 30-point gap across 8 years of ERA5 data. Mexico City also sees measurably more rain than Sedona this month (50% vs 16% of days). This isn't close.

Compare Mexico City vs Sedona 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.