ERA5 almanac comparison — 8 years of real data
Cayman Islands vs Hilton Head: weather in June
Hilton Head edges out Cayman Islands for sun in June: 20% clear historically versus 4% (8-year ERA5 average, a 16-point gap). Cayman Islands also sees measurably more rain than Hilton Head this month (71% vs 52% of days). Both are viable — Hilton Head is the safer bet.
Cayman Islands
Cayman Islands
- Clear days, June
- 4%
- Sample size
- n=240 days
- Avg high
- 86°F
- Early June (1st–15th)
- 4%
- Late June (16th–end)
- 5%
- Rain frequency
- 71% of days
Hilton Head
SC
- Clear days, June
- 20%
- Sample size
- n=240 days
- Avg high
- 86°F
- Early June (1st–15th)
- 17%
- Late June (16th–end)
- 24%
- Rain frequency
- 52% of days
Frequently asked
Is Cayman Islands or Hilton Head warmer in June?
Equally warm by day in June. Cayman Islands averages highs of 86°F (highs n=240 days); Hilton Head averages highs of 86°F (highs n=240 days) (ERA5 2018–2025). Historical averages, not a forecast.
Does it rain more in Cayman Islands or Hilton Head in June?
Cayman Islands is measurably wetter than Hilton Head. Days with measurable rain: Cayman Islands 71%, Hilton Head 52% (n=240 and n=240 days). ERA5 2018–2025; historical, not a forecast.
Which is sunnier in June, Cayman Islands or Hilton Head?
Hilton Head edges out Cayman Islands for sun in June: 20% clear historically versus 4% (8-year ERA5 average, a 16-point gap). Cayman Islands also sees measurably more rain than Hilton Head this month (71% vs 52% of days). Both are viable — Hilton Head is the safer bet.
Compare Cayman Islands 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.