In March, San Ramon typically sees daytime highs of 16.7°C and overnight lows around 5.8°C. Compared to the annual average high of 20.6°C, March runs -3.9°C.
March in San Ramon averages a daytime high of 16.7°C and an overnight low of 5.8°C.
March runs -3.9°C compared to San Ramon's annual average high of 20.6°C, ranking #9 of 12 months by warmth.
Plan for daytime highs near 16.7°C and cooler evenings around 5.8°C.