In December, Sao Joao de Meriti typically sees daytime highs of 28.9°C and overnight lows around 21.8°C. Compared to the annual average high of 27.3°C, December runs +1.5°C.
December in Sao Joao de Meriti averages a daytime high of 28.9°C and an overnight low of 21.8°C.
December runs +1.5°C compared to Sao Joao de Meriti's annual average high of 27.3°C, ranking #4 of 12 months by warmth.
Plan for daytime highs near 28.9°C and cooler evenings around 21.8°C.