Weather Calendar September 2025 San Francisco
Weather Calendar September 2025 San Francisco. With an average ocean temperature of 57.4°f (14.1°c), september is the month with the warmest seawater in. Get the full san francisco september weather outlook:
A calendar showing the dates of the full moon phases in san francisco california, united states for the year 2025, along with the full moon’s name for each month. High/low temperatures, hours of sun and things to do for a perfect vacation!