In March, San Francisco typically sees daytime highs of 28.0°C and overnight lows around 15.5°C. Compared to the annual average high of 24.7°C, March runs +3.3°C.
March in San Francisco averages a daytime high of 28.0°C and an overnight low of 15.5°C.
March runs +3.3°C compared to San Francisco's annual average high of 24.7°C, ranking #5 of 12 months by warmth.
Plan for daytime highs near 28.0°C and cooler evenings around 15.5°C.