You can visit San Francisco comfortably any time of year; the climate is moderate, except for the occasional chill that accompanies the rolling in of the fog. The temperature seldom drops below 40°F, nor rises to 80°F. It is advisable to pack sweaters, jackets, and clothes for layering because of year round variations in temperature. Include shorts or cool cottons for summer and a bathing suit, as most hotels have a pool. The city can be chilly at any time of the year, especially in summer, when the fog descends and stays for longer periods. Rainfall amount is low year round, but humidity is often high due to the fog. For more information see the San Francisco City Guide.

San Francisco Weather Forecast   Current Conditions at nearby location: San Carlos Airport, CA Updated: 847 PM PDT MON OCT 6 2008 Clear Temp: 62°F Humidity: 77% Wind Speed: NNW 7 MPH Barometer: 30.1 in. Dewpoint: 55°F Heat Index: 62°F Wind Chill: 62°F Civil Twilight: 6:42 AM Sunrise: 7:08 AM Sunset: 6:45 PM Civil Twilight: 7:11 PM