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SunnyDays

ERA5 almanac comparison — 8 years of real data

Nashville vs Santa Fe: weather in September

Essentially a tie in September: Nashville is 48% clear historically, Santa Fe is 50% clear (8-year ERA5 average) — within the noise. Avg high 83°F vs 76°F. Nashville also sees measurably more rain than Santa Fe this month (32% vs 16% of days). Pick based on flight time or price, not weather — the weather won't decide this one for you.

What you are reading: 8-year historical averages, not a forecast. Either destination can still surprise you this specific September. For this week’s actual forecast, each destination links to its live page below.

Nashville

TN

Clear days, September
48%
Sample size
n=240 days
Avg high
83°F
Early September (1st–15th)
48%
Late September (16th–end)
47%
Rain frequency
32% of days

Santa Fe

NM

Clear days, September
50%
Sample size
n=240 days
Avg high
76°F
Early September (1st–15th)
50%
Late September (16th–end)
50%
Rain frequency
16% of days

Compare Nashville vs Santa Fe 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.