ERA5 almanac comparison — 8 years of real data
30A / Seaside vs Savannah: weather in May
30A / Seaside edges out Savannah for sun in May: 42% clear historically versus 37% (8-year ERA5 average, a 5-point gap). Both are viable — 30A / Seaside is the safer bet.
30A / Seaside
FL
- Clear days, May
- 42%
- Sample size
- n=248 days
- Avg high
- 81°F
- Early May (1st–15th)
- 51%
- Late May (16th–end)
- 34%
- Rain frequency
- 38% of days
Savannah
GA
- Clear days, May
- 37%
- Sample size
- n=248 days
- Avg high
- 84°F
- Early May (1st–15th)
- 42%
- Late May (16th–end)
- 32%
- Rain frequency
- 41% of days
Frequently asked
Is 30A / Seaside or Savannah warmer in May?
Savannah runs warmer by day in May. 30A / Seaside averages highs of 81°F (highs n=248 days); Savannah averages highs of 84°F (highs n=248 days) (ERA5 2018–2025). Historical averages, not a forecast.
Does it rain more in 30A / Seaside or Savannah in May?
Days with measurable rain: 30A / Seaside 38%, Savannah 41% (n=248 and n=248 days). ERA5 2018–2025; historical, not a forecast.
Which is sunnier in May, 30A / Seaside or Savannah?
30A / Seaside edges out Savannah for sun in May: 42% clear historically versus 37% (8-year ERA5 average, a 5-point gap). Both are viable — 30A / Seaside is the safer bet.
Compare 30A / Seaside vs Savannah 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.