ERA5 almanac comparison — 8 years of real data
Dallas vs Sea Island: weather in April
Essentially a tie in April: Dallas is 33% clear historically, Sea Island is 36% clear (8-year ERA5 average) — within the noise. Avg high 76°F vs 74°F. Pick based on flight time or price, not weather — the weather won't decide this one for you.
Dallas
TX
- Clear days, April
- 33%
- Sample size
- n=240 days
- Avg high
- 76°F
- Early April (1st–15th)
- 32%
- Late April (16th–end)
- 34%
- 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 Dallas or Sea Island warmer in April?
Dallas runs warmer by day in April. Dallas averages highs of 76°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 Dallas or Sea Island in April?
Days with measurable rain: Dallas 34%, Sea Island 28% (n=240 and n=240 days). ERA5 2018–2025; historical, not a forecast.
Which is sunnier in April, Dallas or Sea Island?
Essentially a tie in April: Dallas is 33% clear historically, Sea Island is 36% clear (8-year ERA5 average) — within the noise. Avg high 76°F vs 74°F. Pick based on flight time or price, not weather — the weather won't decide this one for you.
Compare Dallas 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.