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SunnyDays

ERA5 almanac comparison — 8 years of real data

Palm Beach Gardens vs Scottsdale: weather in September

Scottsdale is the clear winner for sun in September: 82% of days historically clear versus just 5% in Palm Beach Gardens — a 77-point gap across 8 years of ERA5 data. Palm Beach Gardens also sees measurably more rain than Scottsdale this month (76% vs 10% 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 September. For the actual forecast right now, each destination links to its live page below.

Palm Beach Gardens

FL

Clear days, September
5%
Sample size
n=240 days
Avg high
86°F
Early September (1st–15th)
2%
Late September (16th–end)
8%
Rain frequency
76% of days
See the live forecast →

Scottsdale

AZ

Clear days, September
82%
Sample size
n=240 days
Avg high
100°F
Early September (1st–15th)
83%
Late September (16th–end)
82%
Rain frequency
10% of days
See the live forecast →

Frequently asked

Is Palm Beach Gardens or Scottsdale warmer in September?

Scottsdale runs warmer by day in September. Palm Beach Gardens averages highs of 86°F (highs n=240 days); Scottsdale averages highs of 100°F (highs n=240 days) (ERA5 2018–2025). Historical averages, not a forecast.

Does it rain more in Palm Beach Gardens or Scottsdale in September?

Palm Beach Gardens is measurably wetter than Scottsdale. Days with measurable rain: Palm Beach Gardens 76%, Scottsdale 10% (n=240 and n=240 days). ERA5 2018–2025; historical, not a forecast.

Which is sunnier in September, Palm Beach Gardens or Scottsdale?

Scottsdale is the clear winner for sun in September: 82% of days historically clear versus just 5% in Palm Beach Gardens — a 77-point gap across 8 years of ERA5 data. Palm Beach Gardens also sees measurably more rain than Scottsdale this month (76% vs 10% of days). This isn't close.

Compare Palm Beach Gardens vs Scottsdale 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.