In October, San Ramon typically sees daytime highs of 23.2°C and overnight lows around 9.8°C. Compared to the annual average high of 20.6°C, October runs +2.6°C.
October in San Ramon averages a daytime high of 23.2°C and an overnight low of 9.8°C.
October runs +2.6°C compared to San Ramon's annual average high of 20.6°C, ranking #5 of 12 months by warmth.
Plan for daytime highs near 23.2°C and cooler evenings around 9.8°C.