ERA5 almanac comparison — 8 years of real data
Austin vs Puerto Rico: weather in August
Austin is the clear winner for sun in August: 46% of days historically clear versus just 8% in Puerto Rico — a 38-point gap across 8 years of ERA5 data. Puerto Rico also sees measurably more rain than Austin this month (64% vs 28% of days). This isn't close.
Austin
TX
- Clear days, August
- 46%
- Sample size
- n=248 days
- Avg high
- 97°F
- Early August (1st–15th)
- 49%
- Late August (16th–end)
- 43%
- Rain frequency
- 28% of days
Puerto Rico
PR
- Clear days, August
- 8%
- Sample size
- n=248 days
- Avg high
- 88°F
- Early August (1st–15th)
- 11%
- Late August (16th–end)
- 5%
- Rain frequency
- 64% of days
Frequently asked
Is Austin or Puerto Rico warmer in August?
Austin runs warmer by day in August. Austin averages highs of 97°F (highs n=248 days); Puerto Rico averages highs of 88°F (highs n=248 days) (ERA5 2018–2025). Historical averages, not a forecast.
Does it rain more in Austin or Puerto Rico in August?
Puerto Rico is measurably wetter than Austin. Days with measurable rain: Austin 28%, Puerto Rico 64% (n=248 and n=248 days). ERA5 2018–2025; historical, not a forecast.
Which is sunnier in August, Austin or Puerto Rico?
Austin is the clear winner for sun in August: 46% of days historically clear versus just 8% in Puerto Rico — a 38-point gap across 8 years of ERA5 data. Puerto Rico also sees measurably more rain than Austin this month (64% vs 28% of days). This isn't close.
Compare Austin vs Puerto Rico 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.