In December, Santa Cruz typically sees daytime highs of 15.1°C and overnight lows around 6.8°C. Compared to the annual average high of 18.1°C, December runs -3.0°C.
December in Santa Cruz averages a daytime high of 15.1°C and an overnight low of 6.8°C.
December runs -3.0°C compared to Santa Cruz's annual average high of 18.1°C, ranking #11 of 12 months by warmth.
Plan for daytime highs near 15.1°C and cooler evenings around 6.8°C.