ERA5 almanac comparison — 8 years of real data
Austin vs Miami: weather in May
Austin edges out Miami for sun in May: 27% clear historically versus 20% (8-year ERA5 average, a 7-point gap). Both are viable — Austin is the safer bet.
Austin
TX
- Clear days, May
- 27%
- Sample size
- n=248 days
- Avg high
- 87°F
- Early May (1st–15th)
- 32%
- Late May (16th–end)
- 23%
- Rain frequency
- 49% of days
Miami
FL
- Clear days, May
- 20%
- Sample size
- n=248 days
- Avg high
- 85°F
- Early May (1st–15th)
- 23%
- Late May (16th–end)
- 18%
- Rain frequency
- 57% of days
Frequently asked
Is Austin or Miami warmer in May?
Austin runs warmer by day in May. Austin averages highs of 87°F (highs n=248 days); Miami averages highs of 85°F (highs n=248 days) (ERA5 2018–2025). Historical averages, not a forecast.
Does it rain more in Austin or Miami in May?
Days with measurable rain: Austin 49%, Miami 57% (n=248 and n=248 days). ERA5 2018–2025; historical, not a forecast.
Which is sunnier in May, Austin or Miami?
Austin edges out Miami for sun in May: 27% clear historically versus 20% (8-year ERA5 average, a 7-point gap). Both are viable — Austin is the safer bet.
Compare Austin vs Miami 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.