ERA5 almanac comparison — 8 years of real data
Nashville vs Newport Beach: weather in October
Newport Beach edges out Nashville for sun in October: 49% clear historically versus 32% (8-year ERA5 average, a 17-point gap). Nashville also sees measurably more rain than Newport Beach this month (31% vs 8% of days). Both are viable — Newport Beach is the safer bet.
What you are reading: 8-year historical averages, not a forecast.
Either destination can still surprise you this specific October. For this
week’s actual forecast, each destination links to its live page below.
Nashville
TN
- Clear days, October
- 32%
- Sample size
- n=248 days
- Avg high
- 73°F
- Early October (1st–15th)
- 43%
- Late October (16th–end)
- 21%
- Rain frequency
- 31% of days
Newport Beach
CA
- Clear days, October
- 49%
- Sample size
- n=248 days
- Avg high
- 73°F
- Early October (1st–15th)
- 53%
- Late October (16th–end)
- 46%
- Rain frequency
- 8% of days
Compare Nashville vs Newport Beach 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.