ERA5 almanac comparison — 8 years of real data
Bar Harbor vs St. Augustine: weather in May
St. Augustine is the clear winner for sun in May: 40% of days historically clear versus just 6% in Bar Harbor — a 34-point gap across 8 years of ERA5 data. This isn't close.
Bar Harbor
ME
- Clear days, May
- 6%
- Sample size
- n=248 days
- Avg high
- 60°F
- Early May (1st–15th)
- 3%
- Late May (16th–end)
- 9%
- Rain frequency
- 33% of days
St. Augustine
FL
- Clear days, May
- 40%
- Sample size
- n=248 days
- Avg high
- 82°F
- Early May (1st–15th)
- 42%
- Late May (16th–end)
- 39%
- Rain frequency
- 33% of days
Frequently asked
Is Bar Harbor or St. Augustine warmer in May?
St. Augustine runs warmer by day in May. Bar Harbor averages highs of 60°F (highs n=248 days); St. Augustine averages highs of 82°F (highs n=248 days) (ERA5 2018–2025). Historical averages, not a forecast.
Does it rain more in Bar Harbor or St. Augustine in May?
Days with measurable rain: Bar Harbor 33%, St. Augustine 33% (n=248 and n=248 days). ERA5 2018–2025; historical, not a forecast.
Which is sunnier in May, Bar Harbor or St. Augustine?
St. Augustine is the clear winner for sun in May: 40% of days historically clear versus just 6% in Bar Harbor — a 34-point gap across 8 years of ERA5 data. 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.