ERA5 almanac comparison — 8 years of real data
Kiawah Island vs St. Augustine: weather in April
Essentially a tie in April: Kiawah Island is 41% clear historically, St. Augustine is 42% clear (8-year ERA5 average) — within the noise. Avg high 74°F vs 76°F. Pick based on flight time or price, not weather — the weather won't decide this one for you.
Kiawah Island
SC
- Clear days, April
- 41%
- Sample size
- n=240 days
- Avg high
- 74°F
- Early April (1st–15th)
- 35%
- Late April (16th–end)
- 47%
- Rain frequency
- 26% 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
Frequently asked
Is Kiawah Island or St. Augustine warmer in April?
St. Augustine runs warmer by day in April. Kiawah Island averages highs of 74°F (highs n=240 days); St. Augustine averages highs of 76°F (highs n=240 days) (ERA5 2018–2025). Historical averages, not a forecast.
Does it rain more in Kiawah Island or St. Augustine in April?
Days with measurable rain: Kiawah Island 26%, St. Augustine 31% (n=240 and n=240 days). ERA5 2018–2025; historical, not a forecast.
Which is sunnier in April, Kiawah Island or St. Augustine?
Essentially a tie in April: Kiawah Island is 41% clear historically, St. Augustine is 42% clear (8-year ERA5 average) — within the noise. Avg high 74°F vs 76°F. Pick based on flight time or price, not weather — the weather won't decide this one for you.
Compare Kiawah Island 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 forecast for any destination is on its own page and may differ from the long-run average. Data from Open-Meteo.