In December, Osorno typically sees daytime highs of 20.1°C and overnight lows around 8.4°C. Compared to the annual average high of 16.0°C, December runs +4.0°C.
December in Osorno averages a daytime high of 20.1°C and an overnight low of 8.4°C.
December runs +4.0°C compared to Osorno's annual average high of 16.0°C, ranking #3 of 12 months by warmth.
Plan for daytime highs near 20.1°C and cooler evenings around 8.4°C.