In August, Watsonville typically sees daytime highs of 23.0°C and overnight lows around 11.9°C. Compared to the annual average high of 20.1°C, August runs +2.8°C.
August in Watsonville averages a daytime high of 23.0°C and an overnight low of 11.9°C.
August runs +2.8°C compared to Watsonville's annual average high of 20.1°C, ranking #2 of 12 months by warmth.
Plan for daytime highs near 23.0°C and cooler evenings around 11.9°C.