In October, San Rafael typically sees daytime highs of 18.9°C and overnight lows around 10.3°C. Compared to the annual average high of 16.7°C, October runs +2.3°C.
October in San Rafael averages a daytime high of 18.9°C and an overnight low of 10.3°C.
October runs +2.3°C compared to San Rafael's annual average high of 16.7°C, ranking #4 of 12 months by warmth.
Plan for daytime highs near 18.9°C and cooler evenings around 10.3°C.