ERA5 almanac comparison — 8 years of real data
Amelia Island vs Las Vegas: weather in August
Las Vegas is the clear winner for sun in August: 85% of days historically clear versus just 9% in Amelia Island — a 76-point gap across 8 years of ERA5 data. Amelia Island also sees measurably more rain than Las Vegas this month (81% vs 5% 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 August. For this
week’s actual forecast, each destination links to its live page below.
Amelia Island
FL
- Clear days, August
- 9%
- Sample size
- n=248 days
- Avg high
- 86°F
- Early August (1st–15th)
- 8%
- Late August (16th–end)
- 9%
- Rain frequency
- 81% of days
Las Vegas
NV
- Clear days, August
- 85%
- Sample size
- n=248 days
- Avg high
- 104°F
- Early August (1st–15th)
- 82%
- Late August (16th–end)
- 87%
- Rain frequency
- 5% of days
Compare Amelia Island vs Las Vegas 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.