ERA5 almanac comparison — 8 years of real data
Destin vs Napa: weather in April
Essentially a tie in April: Destin is 38% clear historically, Napa is 42% clear (8-year ERA5 average) — within the noise. Avg high 75°F vs 70°F. Destin also sees measurably more rain than Napa this month (32% vs 14% of days). Pick based on flight time or price, not weather — the weather won't decide this one for you.
Destin
FL
- Clear days, April
- 38%
- Sample size
- n=240 days
- Avg high
- 75°F
- Early April (1st–15th)
- 30%
- Late April (16th–end)
- 47%
- Rain frequency
- 32% of days
Napa
CA
- Clear days, April
- 42%
- Sample size
- n=240 days
- Avg high
- 70°F
- Early April (1st–15th)
- 31%
- Late April (16th–end)
- 52%
- Rain frequency
- 14% of days
Compare Destin vs Napa 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.