ERA5 almanac comparison — 8 years of real data
Atlanta vs Orlando: weather in May
Essentially a tie in May: Atlanta is 32% clear historically, Orlando is 30% clear (8-year ERA5 average) — within the noise. Avg high 80°F vs 87°F. Pick based on flight time or price, not weather — the weather won't decide this one for you.
Atlanta
GA
- Clear days, May
- 32%
- Sample size
- n=248 days
- Avg high
- 80°F
- Early May (1st–15th)
- 26%
- Late May (16th–end)
- 37%
- Rain frequency
- 43% of days
Orlando
FL
- Clear days, May
- 30%
- Sample size
- n=248 days
- Avg high
- 87°F
- Early May (1st–15th)
- 32%
- Late May (16th–end)
- 29%
- Rain frequency
- 46% of days
Frequently asked
Is Atlanta or Orlando warmer in May?
Orlando runs warmer by day in May. Atlanta averages highs of 80°F (highs n=248 days); Orlando averages highs of 87°F (highs n=248 days) (ERA5 2018–2025). Historical averages, not a forecast.
Does it rain more in Atlanta or Orlando in May?
Days with measurable rain: Atlanta 43%, Orlando 46% (n=248 and n=248 days). ERA5 2018–2025; historical, not a forecast.
Which is sunnier in May, Atlanta or Orlando?
Essentially a tie in May: Atlanta is 32% clear historically, Orlando is 30% clear (8-year ERA5 average) — within the noise. Avg high 80°F vs 87°F. Pick based on flight time or price, not weather — the weather won't decide this one for you.
Compare Atlanta vs Orlando 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.