In December, Chetumal typically sees daytime highs of 28.7°C and overnight lows around 17.3°C. Compared to the annual average high of 31.3°C, December runs -2.6°C.
December in Chetumal averages a daytime high of 28.7°C and an overnight low of 17.3°C.
December runs -2.6°C compared to Chetumal's annual average high of 31.3°C, ranking #11 of 12 months by warmth.
Plan for daytime highs near 28.7°C and cooler evenings around 17.3°C.