In November, Castro Valley typically sees daytime highs of 17.5°C and overnight lows around 7.7°C. Compared to the annual average high of 20.0°C, November runs -2.5°C.
November in Castro Valley averages a daytime high of 17.5°C and an overnight low of 7.7°C.
November runs -2.5°C compared to Castro Valley's annual average high of 20.0°C, ranking #8 of 12 months by warmth.
Plan for daytime highs near 17.5°C and cooler evenings around 7.7°C.