ERA5 almanac comparison — 8 years of real data
30A / Seaside vs Kiawah Island: weather in June
Kiawah Island edges out 30A / Seaside for sun in June: 22% clear historically versus 16% (8-year ERA5 average, a 6-point gap). Both are viable — Kiawah Island is the safer bet.
30A / Seaside
FL
- Clear days, June
- 16%
- Sample size
- n=240 days
- Avg high
- 86°F
- Early June (1st–15th)
- 16%
- Late June (16th–end)
- 16%
- Rain frequency
- 62% of days
Kiawah Island
SC
- Clear days, June
- 22%
- Sample size
- n=240 days
- Avg high
- 84°F
- Early June (1st–15th)
- 21%
- Late June (16th–end)
- 22%
- Rain frequency
- 54% of days
Frequently asked
Is 30A / Seaside or Kiawah Island warmer in June?
30A / Seaside runs warmer by day in June. 30A / Seaside averages highs of 86°F (highs n=240 days); Kiawah Island averages highs of 84°F (highs n=240 days) (ERA5 2018–2025). Historical averages, not a forecast.
Does it rain more in 30A / Seaside or Kiawah Island in June?
Days with measurable rain: 30A / Seaside 62%, Kiawah Island 54% (n=240 and n=240 days). ERA5 2018–2025; historical, not a forecast.
Which is sunnier in June, 30A / Seaside or Kiawah Island?
Kiawah Island edges out 30A / Seaside for sun in June: 22% clear historically versus 16% (8-year ERA5 average, a 6-point gap). Both are viable — Kiawah Island is the safer bet.
Compare 30A / Seaside vs Kiawah Island 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.