In December, Cancun typically sees daytime highs of 27.7°C and overnight lows around 19.5°C. Compared to the annual average high of 30.0°C, December runs -2.3°C.
December in Cancun averages a daytime high of 27.7°C and an overnight low of 19.5°C.
December runs -2.3°C compared to Cancun's annual average high of 30.0°C, ranking #11 of 12 months by warmth.
Plan for daytime highs near 27.7°C and cooler evenings around 19.5°C.