San Francisco County Weather Forecast
San Francisco County weather: 50°F, clear. Hourly forecast, 14-day outlook, UV, air quality and the best time to visit.
Tomorrow in San Francisco County - Thursday, October 29
Next 24 hours
Hour-by-hour temperature, precipitation chance and wind.
Active alerts for San Francisco County
Coastal Flood Advisory issued October 27 at 5:41AM PDT until October 30 at 5:00PM PDT by NWS San Francisco CA
Issued by NWS San Francisco CA
Is today a good day to visit?
Activity scores from 0 to 10 based on temperature, rain, wind, sun and visibility.
What to pack, what to skip
- Layers - the daily swing is 55°F, so mornings feel nothing like afternoons
- If your dates are flexible, avoid January, February and December - historically the least comfortable months here.
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 50°F (10°C) with clear. Humidity is 79% and wind is 6 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 5:17 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.
Related articles
Data sources and methodology
| 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 28, 2026 at 5:17 PM local time. Live blocks refresh every 15 minutes; climate averages monthly.
