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In San Francisco, the summers are long, comfortable, arid, and mostly clear and the winters are short, cold, wet, and partly cloudy. Over the course of the year, the temperature typically varies from 45°F to 72°F and is rarely below 39°F or above 83°F.
Currently: 65 °F. Passing clouds. (Weather station: San Francisco International Airport, USA). See more current weather. Annual Weather Averages Near San Francisco. Averages are for San Francisco International Airport, which is 11 miles from San Francisco. Based on weather reports collected during 1992–2021. Showing:
Find out the average weather, temperature, rainfall, and sunshine hours for San Francisco and its surroundings. Learn about the Mediterranean climate with cool summers, the foggy and windy conditions, and the microclimates in different areas.
Find monthly temperature, precipitation and hours of sunshine averages for San Francisco, California. See a climate graph and chart with rainfall, temperatures and normals for San Francisco weather.
San Francisco averages just three days a year when the temperature reaches 90 degrees Fahrenheit, and even fewer over 100 (38 °C). No matter how warm the day, at night the temperature always cools to less than 70 degrees. The city's hottest days usually occur in September and October.
Throughout the year, San Francisco experiences fairly consistent temperatures, with monthly averages hovering between 45.9°F (7.7°C) and 72.5°F (22.5°C). Relative humidity remains quite steady, oscillating around the 70% mark all year round, contributing to a humid and pleasant climate.
average temperature by month San Francisco. On average, the month of September experiences the highest temperature with an average value of 17.1 °C | 62.7 °F. During the month of January, the mean temperature registers at a minimum value of 9.6 °C | 49.2 °F.
