In September, Sao Joao de Meriti typically sees daytime highs of 25.9°C and overnight lows around 18.3°C. Compared to the annual average high of 27.3°C, September runs -1.4°C.
September in Sao Joao de Meriti averages a daytime high of 25.9°C and an overnight low of 18.3°C.
September runs -1.4°C compared to Sao Joao de Meriti's annual average high of 27.3°C, ranking #8 of 12 months by warmth.
Plan for daytime highs near 25.9°C and cooler evenings around 18.3°C.