ERA5 almanac comparison — 8 years of real data
Key West vs Panama City Beach: weather in September
Panama City Beach edges out Key West for sun in September: 35% clear historically versus 11% (8-year ERA5 average, a 24-point gap). Key West also sees measurably more rain than Panama City Beach this month (64% vs 46% of days). Both are viable — Panama City Beach is the safer bet.
Key West
FL
- Clear days, September
- 11%
- Sample size
- n=240 days
- Avg high
- 85°F
- Early September (1st–15th)
- 14%
- Late September (16th–end)
- 8%
- Rain frequency
- 64% of days
Panama City Beach
FL
- Clear days, September
- 35%
- Sample size
- n=240 days
- Avg high
- 85°F
- Early September (1st–15th)
- 23%
- Late September (16th–end)
- 47%
- Rain frequency
- 46% of days
Frequently asked
Is Key West or Panama City Beach warmer in September?
Equally warm by day in September. Key West averages highs of 85°F (highs n=240 days); Panama City Beach averages highs of 85°F (highs n=240 days) (ERA5 2018–2025). Historical averages, not a forecast.
Does it rain more in Key West or Panama City Beach in September?
Key West is measurably wetter than Panama City Beach. Days with measurable rain: Key West 64%, Panama City Beach 46% (n=240 and n=240 days). ERA5 2018–2025; historical, not a forecast.
Which is sunnier in September, Key West or Panama City Beach?
Panama City Beach edges out Key West for sun in September: 35% clear historically versus 11% (8-year ERA5 average, a 24-point gap). Key West also sees measurably more rain than Panama City Beach this month (64% vs 46% of days). Both are viable — Panama City Beach is the safer bet.
Compare Key West vs Panama City Beach 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.