Will I be hot?
Will I be hot in Mexico City in January?
Verdict
Maybe — Warm at times.
Highs around 72°F — comfortable in shade, warm in direct sun. Big diurnal swing (27°F) — cool evenings save the day.
Day vs. night
Day
72°F
Comfortable
A T-shirt and a light overshirt is enough.
Night
45°F
Cold
Cold enough that a hat and gloves become mandatory.
Why
Mexico City in January averages highs of 72°F, lows of 45°F, 3 rainy days.
Bring a light layer for the shade and a hat for the sun — the difference between them can feel like 15°F.
The day-to-night temperature swing is 27°F, which is the real story here — the average number hides how different midday and midnight feel.
See a full outfit plan for warm afternoons →
Mexico City in January outfit ideas from ForecastStyle.