San Francisco County Weather Forecast
San Francisco County weather: 64°F, clear sky. Hourly forecast, 14-day outlook, UV, air quality and the best time to visit.
Tomorrow in San Francisco County - Sunday, August 23
Next 24 hours
Hour-by-hour temperature, precipitation chance and wind.
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
- Sunglasses, a brimmed hat and SPF 30+
- 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 64°F (18°C) with clear sky. Humidity is 71% and wind is 16 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 12:10 AM.
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 August 23, 2026 at 12:10 AM local time. Live blocks refresh every 15 minutes; climate averages monthly.
