In December, Thousand Oaks typically sees daytime highs of 17.6°C and overnight lows around 8.0°C. Compared to the annual average high of 20.7°C, December runs -3.0°C.
December in Thousand Oaks averages a daytime high of 17.6°C and an overnight low of 8.0°C.
December runs -3.0°C compared to Thousand Oaks's annual average high of 20.7°C, ranking #9 of 12 months by warmth.
Plan for daytime highs near 17.6°C and cooler evenings around 8.0°C.