In December, Montero typically sees daytime highs of 31.4°C and overnight lows around 22.1°C. Compared to the annual average high of 29.6°C, December runs +1.8°C.
December in Montero averages a daytime high of 31.4°C and an overnight low of 22.1°C.
December runs +1.8°C compared to Montero's annual average high of 29.6°C, ranking #3 of 12 months by warmth.
Plan for daytime highs near 31.4°C and cooler evenings around 22.1°C.