ERA5 almanac comparison — 8 years of real data
Austin vs Puerto Rico: weather in March
Austin edges out Puerto Rico for sun in March: 26% clear historically versus 15% (8-year ERA5 average, a 11-point gap). Puerto Rico also sees measurably more rain than Austin this month (54% vs 34% of days). Both are viable — Austin is the safer bet.
Austin
TX
- Clear days, March
- 26%
- Sample size
- n=248 days
- Avg high
- 76°F
- Early March (1st–15th)
- 25%
- Late March (16th–end)
- 27%
- Rain frequency
- 34% of days
Puerto Rico
PR
- Clear days, March
- 15%
- Sample size
- n=248 days
- Avg high
- 83°F
- Early March (1st–15th)
- 18%
- Late March (16th–end)
- 13%
- Rain frequency
- 54% of days
Frequently asked
Is Austin or Puerto Rico warmer in March?
Puerto Rico runs warmer by day in March. Austin averages highs of 76°F (highs n=248 days); Puerto Rico averages highs of 83°F (highs n=248 days) (ERA5 2018–2025). Historical averages, not a forecast.
Does it rain more in Austin or Puerto Rico in March?
Puerto Rico is measurably wetter than Austin. Days with measurable rain: Austin 34%, Puerto Rico 54% (n=248 and n=248 days). ERA5 2018–2025; historical, not a forecast.
Which is sunnier in March, Austin or Puerto Rico?
Austin edges out Puerto Rico for sun in March: 26% clear historically versus 15% (8-year ERA5 average, a 11-point gap). Puerto Rico also sees measurably more rain than Austin this month (54% vs 34% of days). Both are viable — Austin is the safer bet.
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.