ERA5 almanac comparison — 8 years of real data
Austin vs San Diego: weather in February
Essentially a tie in February: Austin is 15% clear historically, San Diego is 12% clear (8-year ERA5 average) — within the noise. Avg high 65°F vs 64°F. Austin also sees measurably more rain than San Diego this month (37% vs 21% of days). Pick based on flight time or price, not weather — the weather won't decide this one for you.
Austin
TX
- Clear days, February
- 15%
- Sample size
- n=226 days
- Avg high
- 65°F
- Early February (1st–15th)
- 11%
- Late February (16th–end)
- 20%
- Rain frequency
- 37% of days
San Diego
CA
- Clear days, February
- 12%
- Sample size
- n=226 days
- Avg high
- 64°F
- Early February (1st–15th)
- 14%
- Late February (16th–end)
- 9%
- Rain frequency
- 21% of days
Compare Austin vs San Diego 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.