In December, Olavarria typically sees daytime highs of 27.5°C and overnight lows around 12.1°C. Compared to the annual average high of 21.0°C, December runs +6.5°C.
December in Olavarria averages a daytime high of 27.5°C and an overnight low of 12.1°C.
December runs +6.5°C compared to Olavarria's annual average high of 21.0°C, ranking #3 of 12 months by warmth.
Plan for daytime highs near 27.5°C and cooler evenings around 12.1°C.