ERA5 almanac comparison — 8 years of real data
Bar Harbor vs Hilton Head: weather in August
Bar Harbor edges out Hilton Head for sun in August: 36% clear historically versus 9% (8-year ERA5 average, a 27-point gap). Hilton Head also sees measurably more rain than Bar Harbor this month (66% vs 28% of days). Both are viable — Bar Harbor is the safer bet.
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
Hilton Head
SC
- Clear days, August
- 9%
- Sample size
- n=248 days
- Avg high
- 86°F
- Early August (1st–15th)
- 6%
- Late August (16th–end)
- 12%
- Rain frequency
- 66% of days
Frequently asked
Is Bar Harbor or Hilton Head warmer in August?
Hilton Head runs warmer by day in August. Bar Harbor averages highs of 75°F (highs n=248 days); Hilton Head 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 Hilton Head in August?
Hilton Head is measurably wetter than Bar Harbor. Days with measurable rain: Bar Harbor 28%, Hilton Head 66% (n=248 and n=248 days). ERA5 2018–2025; historical, not a forecast.
Which is sunnier in August, Bar Harbor or Hilton Head?
Bar Harbor edges out Hilton Head for sun in August: 36% clear historically versus 9% (8-year ERA5 average, a 27-point gap). Hilton Head also sees measurably more rain than Bar Harbor this month (66% vs 28% of days). Both are viable — Bar Harbor is the safer bet.
Compare Bar Harbor vs Hilton Head 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.