In March, San Francisco typically sees daytime highs of 26.9°C and overnight lows around 16.2°C. Compared to the annual average high of 25.2°C, March runs +1.7°C.
March in San Francisco averages a daytime high of 26.9°C and an overnight low of 16.2°C.
March runs +1.7°C compared to San Francisco's annual average high of 25.2°C, ranking #2 of 12 months by warmth.
Plan for daytime highs near 26.9°C and cooler evenings around 16.2°C.