Will I be hot?
Will I be hot in El Paso in September?
Verdict
Yes — Yes, hot.
Highs push 86°F — sun exposure and hydration matter more than layering.
Day vs. night
Day
86°F
Hot
Prioritize shade, hydration, and a brim.
Night
64°F
Comfortable
Comfortable outside without an extra layer.
Why
El Paso in September averages highs of 86°F, lows of 64°F, 5 rainy days.
Prioritize breathable fabrics, sun protection, and hydration over any kind of layering piece.