ERA5 almanac comparison — 8 years of real data
Bar Harbor vs St. Augustine: weather in August
Bar Harbor is the clear winner for sun in August: 36% of days historically clear versus just 6% in St. Augustine — a 30-point gap across 8 years of ERA5 data. St. Augustine also sees measurably more rain than Bar Harbor this month (75% vs 28% of days). This isn't close.
Bar Harbor
ME
- Clear days, August
- 36%
- Sample size
- n=248 days
- Avg high
- 75°F
- Early August (1st–15th)
- 43%
- Late August (16th–end)
- 29%
- Rain frequency
- 28% 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 Bar Harbor or St. Augustine warmer in August?
St. Augustine runs warmer by day in August. Bar Harbor averages highs of 75°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 Bar Harbor or St. Augustine in August?
St. Augustine is measurably wetter than Bar Harbor. Days with measurable rain: Bar Harbor 28%, St. Augustine 75% (n=248 and n=248 days). ERA5 2018–2025; historical, not a forecast.
Which is sunnier in August, Bar Harbor or St. Augustine?
Bar Harbor is the clear winner for sun in August: 36% of days historically clear versus just 6% in St. Augustine — a 30-point gap across 8 years of ERA5 data. St. Augustine also sees measurably more rain than Bar Harbor this month (75% vs 28% of days). This isn't close.
Compare Bar Harbor 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.