In December, Uruguaiana typically sees daytime highs of 31.0°C and overnight lows around 18.4°C. Compared to the annual average high of 25.6°C, December runs +5.5°C.
December in Uruguaiana averages a daytime high of 31.0°C and an overnight low of 18.4°C.
December runs +5.5°C compared to Uruguaiana's annual average high of 25.6°C, ranking #3 of 12 months by warmth.
Plan for daytime highs near 31.0°C and cooler evenings around 18.4°C.