In December, Santarem typically sees daytime highs of 31.1°C and overnight lows around 22.4°C. Compared to the annual average high of 30.9°C, December runs +0.2°C.
December in Santarem averages a daytime high of 31.1°C and an overnight low of 22.4°C.
December runs +0.2°C compared to Santarem's annual average high of 30.9°C, ranking #5 of 12 months by warmth.
Plan for daytime highs near 31.1°C and cooler evenings around 22.4°C.