In December, Rio Tercero typically sees daytime highs of 29.3°C and overnight lows around 15.8°C. Compared to the annual average high of 23.8°C, December runs +5.4°C.
December in Rio Tercero averages a daytime high of 29.3°C and an overnight low of 15.8°C.
December runs +5.4°C compared to Rio Tercero's annual average high of 23.8°C, ranking #3 of 12 months by warmth.
Plan for daytime highs near 29.3°C and cooler evenings around 15.8°C.