San Francisco County Weather Forecast
San Francisco County weather: 58°F, clear. Hourly forecast, 14-day outlook, UV, air quality and the best time to visit.
Risk assessment for San Francisco County
Derived from the current forecast window - not an official warning.
12 dry days, 0 days above 90°F and humidity at 72%. Hot, dry and windy together is what drives fire spread.
Clear air overhead right now. Aerosol readings cannot separate wildfire smoke from dust, so treat this as a haze signal, not a fire confirmation.
Air quality and pollen in San Francisco County
Air quality: Open-Meteo (CAMS). US AQI scale.
Health and safety today
| Skin and UV | No protection needed for most skin types. |
|---|---|
| General | Conditions are comfortable for most people, including children and older adults, with normal clothing. |
Active alerts for San Francisco County
Coastal Flood Advisory issued October 26 at 8:59PM PDT until October 30 at 5:00PM PDT by NWS San Francisco CA
Issued by NWS San Francisco CA
See the San Francisco County forecast by time range
San Francisco County weather - more answers
Explore San Francisco County
Every topic we hold for this place, and the same topic for the places around it.
Weather for related places
Frequently asked questions
Where is San Francisco County?
San Francisco County is a county in California. Its coordinates are 37.7749, -122.4194. It lies in North America.
What is the weather like in San Francisco County right now?
It is currently 58°F (15°C) with clear. Humidity is 72% and wind is 12 mph.
When is the best time to visit San Francisco County?
May, June, July, August, September and October offer the most comfortable conditions in San Francisco County, which has a Mediterranean climate. January, February and December are usually the hardest months for outdoor plans.
What time zone is San Francisco County in?
San Francisco County observes America/Los_Angeles (UTC-07:00). The local time is 10:39 PM.
How many people live in San Francisco County?
San Francisco County has a population of approximately 810.000.
What is the nearest airport to San Francisco County?
The closest airports are San Francisco International Airport (SFO), 11 mi away.
What are the top things to do in San Francisco County?
Popular options include Alcatraz Island, Golden Gate Bridge, Point Lobos State Natural Reserve, Pinnacles National Park, Julia Pfeiffer Burns State Park and Emerald Bay State Park.
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| Place data | USPOTUS Atlas dataset (us-counties) - coordinates, hierarchy and facts. |
|---|---|
| Forecast and observations | Open-Meteo (ECMWF and national models). |
| Air quality and pollen | Copernicus CAMS via Open-Meteo. US AQI scale. |
| Climate averages | ERA5 reanalysis via the Open-Meteo archive, aggregated over 3 years. |
| Official alerts | US National Weather Service. |
| Method | Scores, comparisons and advice on this page are computed from the inputs above. Distances are straight-line. Nothing is estimated where data is missing - the block is simply not shown. |
Last updated October 26, 2026 at 10:39 PM local time. Live blocks refresh every 15 minutes; climate averages monthly.
