Will I be cold?
Will I be cold in Mexico City in May?
Verdict
Maybe — Chilly at times.
Lows near 53°F — cool mornings and evenings, comfortable afternoons. Big diurnal swing (25°F) — layers matter more than one warm coat.
Day vs. night
Day
78°F
Warm
Breathable fabrics; sunscreen matters more than a jacket.
Night
53°F
Cool
You'll want a warm layer after sunset — not a heavy coat.
Why
Mexico City in May averages highs of 78°F, lows of 53°F, 10 rainy days.
Layering wins here. A packable puffer plus a base layer handles the cool end without overheating in the middle of the day.
The day-to-night temperature swing is 25°F, which is the real story here — the average number hides how different midday and midnight feel.
See a full outfit plan for chilly evenings →
Mexico City in May outfit ideas from ForecastStyle.