In October, Santa Clara typically sees daytime highs of 24.0°C and overnight lows around 9.6°C. Compared to the annual average high of 21.3°C, October runs +2.7°C.
October in Santa Clara averages a daytime high of 24.0°C and an overnight low of 9.6°C.
October runs +2.7°C compared to Santa Clara's annual average high of 21.3°C, ranking #5 of 12 months by warmth.
Plan for daytime highs near 24.0°C and cooler evenings around 9.6°C.