ERA5 almanac comparison — 8 years of real data
30A / Seaside vs St. Augustine: weather in August
30A / Seaside edges out St. Augustine for sun in August: 12% clear historically versus 6% (8-year ERA5 average, a 6-point gap). Both are viable — 30A / Seaside is the safer bet.
30A / Seaside
FL
- Clear days, August
- 12%
- Sample size
- n=248 days
- Avg high
- 87°F
- Early August (1st–15th)
- 9%
- Late August (16th–end)
- 14%
- Rain frequency
- 70% of days
St. Augustine
FL
- Clear days, August
- 6%
- Sample size
- n=248 days
- Avg high
- 86°F
- Early August (1st–15th)
- 6%
- Late August (16th–end)
- 6%
- Rain frequency
- 75% of days
Frequently asked
Is 30A / Seaside or St. Augustine warmer in August?
30A / Seaside runs warmer by day in August. 30A / Seaside averages highs of 87°F (highs n=248 days); St. Augustine averages highs of 86°F (highs n=248 days) (ERA5 2018–2025). Historical averages, not a forecast.
Does it rain more in 30A / Seaside or St. Augustine in August?
Days with measurable rain: 30A / Seaside 70%, St. Augustine 75% (n=248 and n=248 days). ERA5 2018–2025; historical, not a forecast.
Which is sunnier in August, 30A / Seaside or St. Augustine?
30A / Seaside edges out St. Augustine for sun in August: 12% clear historically versus 6% (8-year ERA5 average, a 6-point gap). Both are viable — 30A / Seaside is the safer bet.
Compare 30A / Seaside 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.