ERA5 almanac comparison — 8 years of real data
Mérida vs St. Augustine: weather in April
Mérida edges out St. Augustine for sun in April: 68% clear historically versus 42% (8-year ERA5 average, a 26-point gap). St. Augustine also sees measurably more rain than Mérida this month (31% vs 12% of days). Both are viable — Mérida is the safer bet.
What you are reading: 8-year historical averages, not a forecast.
Either destination can still surprise you this specific April. For this
week’s actual forecast, each destination links to its live page below.
Mérida
MX
- Clear days, April
- 68%
- Sample size
- n=240 days
- Avg high
- 96°F
- Early April (1st–15th)
- 75%
- Late April (16th–end)
- 61%
- Rain frequency
- 12% of days
St. Augustine
FL
- Clear days, April
- 42%
- Sample size
- n=240 days
- Avg high
- 76°F
- Early April (1st–15th)
- 34%
- Late April (16th–end)
- 51%
- Rain frequency
- 31% of days
Compare Mérida vs St. Augustine 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.