In December, Castanhal typically sees daytime highs of 32.6°C and overnight lows around 22.4°C. Compared to the annual average high of 31.7°C, December runs +0.9°C.
December in Castanhal averages a daytime high of 32.6°C and an overnight low of 22.4°C.
December runs +0.9°C compared to Castanhal's annual average high of 31.7°C, ranking #4 of 12 months by warmth.
Plan for daytime highs near 32.6°C and cooler evenings around 22.4°C.