In December, Gualeguaychu typically sees daytime highs of 29.4°C and overnight lows around 16.2°C. Compared to the annual average high of 23.4°C, December runs +5.9°C.
December in Gualeguaychu averages a daytime high of 29.4°C and an overnight low of 16.2°C.
December runs +5.9°C compared to Gualeguaychu's annual average high of 23.4°C, ranking #3 of 12 months by warmth.
Plan for daytime highs near 29.4°C and cooler evenings around 16.2°C.