ERA5 almanac comparison — 8 years of real data
Birmingham vs Sea Island: weather in April
Sea Island edges out Birmingham for sun in April: 36% clear historically versus 27% (8-year ERA5 average, a 9-point gap). Both are viable — Sea Island is the safer bet.
Birmingham
AL
- Clear days, April
- 27%
- Sample size
- n=240 days
- Avg high
- 72°F
- Early April (1st–15th)
- 22%
- Late April (16th–end)
- 32%
- Rain frequency
- 34% of days
Sea Island
GA
- Clear days, April
- 36%
- Sample size
- n=240 days
- Avg high
- 74°F
- Early April (1st–15th)
- 24%
- Late April (16th–end)
- 49%
- Rain frequency
- 28% of days
Frequently asked
Is Birmingham or Sea Island warmer in April?
Sea Island runs warmer by day in April. Birmingham averages highs of 72°F (highs n=240 days); Sea Island averages highs of 74°F (highs n=240 days) (ERA5 2018–2025). Historical averages, not a forecast.
Does it rain more in Birmingham or Sea Island in April?
Days with measurable rain: Birmingham 34%, Sea Island 28% (n=240 and n=240 days). ERA5 2018–2025; historical, not a forecast.
Which is sunnier in April, Birmingham or Sea Island?
Sea Island edges out Birmingham for sun in April: 36% clear historically versus 27% (8-year ERA5 average, a 9-point gap). Both are viable — Sea Island is the safer bet.
Compare Birmingham vs Sea Island 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.