In December, Sullana typically sees daytime highs of 31.3°C and overnight lows around 18.7°C. Compared to the annual average high of 30.3°C, December runs +1.0°C.
December in Sullana averages a daytime high of 31.3°C and an overnight low of 18.7°C.
December runs +1.0°C compared to Sullana's annual average high of 30.3°C, ranking #5 of 12 months by warmth.
Plan for daytime highs near 31.3°C and cooler evenings around 18.7°C.