In September, Osorno typically sees daytime highs of 13.5°C and overnight lows around 3.9°C. Compared to the annual average high of 16.0°C, September runs -2.6°C.
September in Osorno averages a daytime high of 13.5°C and an overnight low of 3.9°C.
September runs -2.6°C compared to Osorno's annual average high of 16.0°C, ranking #8 of 12 months by warmth.
Plan for daytime highs near 13.5°C and cooler evenings around 3.9°C.