In August, Castanhal typically sees daytime highs of 31.9°C and overnight lows around 21.2°C. Compared to the annual average high of 31.7°C, August runs +0.3°C.
August in Castanhal averages a daytime high of 31.9°C and an overnight low of 21.2°C.
August runs +0.3°C compared to Castanhal's annual average high of 31.7°C, ranking #5 of 12 months by warmth.
Plan for daytime highs near 31.9°C and cooler evenings around 21.2°C.