ERA5 almanac comparison — 8 years of real data
Sea Island vs Tampa: weather in July
Sea Island edges out Tampa for sun in July: 14% clear historically versus 2% (8-year ERA5 average, a 12-point gap). Tampa also sees measurably more rain than Sea Island this month (83% vs 64% of days). Both are viable — Sea Island is the safer bet.
What you are reading: 8-year historical averages, not a forecast.
Either destination can still surprise you this specific July. For this
week’s actual forecast, each destination links to its live page below.
Sea Island
GA
- Clear days, July
- 14%
- Sample size
- n=248 days
- Avg high
- 87°F
- Early July (1st–15th)
- 12%
- Late July (16th–end)
- 16%
- Rain frequency
- 64% of days
Tampa
FL
- Clear days, July
- 2%
- Sample size
- n=248 days
- Avg high
- 89°F
- Early July (1st–15th)
- 3%
- Late July (16th–end)
- 1%
- Rain frequency
- 83% of days
Compare Sea Island vs Tampa 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 7-day outlook for any destination is on its own page and may differ from the long-run average. Data from Open-Meteo.