In March, San Francisco typically sees daytime highs of 16.6°C and overnight lows around 6.7°C. Compared to the annual average high of 19.2°C, March runs -2.6°C.
March in San Francisco averages a daytime high of 16.6°C and an overnight low of 6.7°C.
March runs -2.6°C compared to San Francisco's annual average high of 19.2°C, ranking #9 of 12 months by warmth.
Plan for daytime highs near 16.6°C and cooler evenings around 6.7°C.