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SunnyDays

ERA5 almanac comparison — 8 years of real data

Puerto Vallarta vs Scottsdale Desert Ridge: weather in July

Scottsdale Desert Ridge is the clear winner for sun in July: 76% of days historically clear versus just 10% in Puerto Vallarta — a 66-point gap across 8 years of ERA5 data. Puerto Vallarta also sees measurably more rain than Scottsdale Desert Ridge this month (75% vs 14% 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 July. For this week’s actual forecast, each destination links to its live page below.

Puerto Vallarta

MX

Clear days, July
10%
Sample size
n=248 days
Avg high
88°F
Early July (1st–15th)
12%
Late July (16th–end)
8%
Rain frequency
75% of days

Scottsdale Desert Ridge

AZ

Clear days, July
76%
Sample size
n=248 days
Avg high
105°F
Early July (1st–15th)
83%
Late July (16th–end)
70%
Rain frequency
14% of days

Compare Puerto Vallarta vs Scottsdale Desert Ridge 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.