In May, San Francisco El Alto typically sees daytime highs of 20.1°C and overnight lows around 8.0°C. Compared to the annual average high of 18.8°C, May runs +1.3°C.
May in San Francisco El Alto averages a daytime high of 20.1°C and an overnight low of 8.0°C.
May runs +1.3°C compared to San Francisco El Alto's annual average high of 18.8°C, ranking #2 of 12 months by warmth.
Plan for daytime highs near 20.1°C and cooler evenings around 8.0°C.