In December, San Miguel de Allende typically sees daytime highs of 20.6°C and overnight lows around 4.0°C. Compared to the annual average high of 24.2°C, December runs -3.6°C.
December in San Miguel de Allende averages a daytime high of 20.6°C and an overnight low of 4.0°C.
December runs -3.6°C compared to San Miguel de Allende's annual average high of 24.2°C, ranking #12 of 12 months by warmth.
Plan for daytime highs near 20.6°C and cooler evenings around 4.0°C.