In December, Rio Gallegos typically sees daytime highs of 18.0°C and overnight lows around 6.3°C. Compared to the annual average high of 12.4°C, December runs +5.6°C.
December in Rio Gallegos averages a daytime high of 18.0°C and an overnight low of 6.3°C.
December runs +5.6°C compared to Rio Gallegos's annual average high of 12.4°C, ranking #3 of 12 months by warmth.
Plan for daytime highs near 18.0°C and cooler evenings around 6.3°C.