County in California

San Francisco County 天気 予報

San Francisco County weather: 13°C, 曇り. 時間別 forecast, 14-day outlook, UV, air quality and the best timeからvisit.

☁️ 13°C now🕔 4:10 AM local📅 Best: 5月, 6月, 7月, 8月, 9月 and 10月👥 810.000

Risk assessment for San Francisco County

Derived from the current forecast window - not an official warning.

Fire weather9.5

16 dry days, 0 days above 32°C and humidity at 94%. Hot, dry and windy together is what drives fire spread.

Airborne particulates1.2

晴れ air overhead現在. Aerosol readings cannot separate wildfire smoke from dust, so treat this as a haze signal, not a fire confirmation.

大気質 and pollen in San Francisco County

51
中程度
Unusually sensitive people should limit long outdoor exertion.
PM2.510.6 µg/m³
PM1016.1 µg/m³
Ozone57 µg/m³
NO₂10.8 µg/m³
UV指数0 · 低い
Airborne haze晴れ air

大気質: Open-Meteo (CAMS). US AQI scale.

Health and safety today

Skin and UVNo protection needed for most skin types.
General状況 are comfortable for most people, including children and older adults,、normal clothing.

時間帯別のSan Francisco County 予報を見る

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.

天気 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 北アメリカ.

What is the weather like in San Francisco County現在?

It is currently 13°C (56°F)、曇り. 湿度 is 94% and wind is 8 km/h.

When is the best timeからvisit San Francisco County?

5月, 6月, 7月, 8月, 9月 and 10月 offer the most comfortable conditions in San Francisco County, which has a Mediterranean climate. 1月, 2月 and 12月 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 4:10 AM.

How many people live in San Francisco County?

San Francisco County has a population of approximately 810.000.

What is the nearest airportからSan Francisco County?

The closest airports are San Francisco International Airport (SFO), 17 km away.

What are the top thingsからdo in San Francisco County?

Popular options include Alcatraz Island, Golden Gate Bridge, Point Lobos State Natural Reserve, Pinnacles National Park, 7月ia Pfeiffer Burns State Park and Emerald Bay State Park.

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Data sources and methodology

Place dataUSPOTUS Atlas dataset (us-counties) - coordinates, hierarchy and facts.
予報 and observationsOpen-Meteo (ECMWF and national models).
大気質 and pollenCopernicus CAMS via Open-Meteo. US AQI scale.
気候 averagesERA5 reanalysis via the Open-Meteo archive, aggregated over 3 years.
Official alertsUS National 天気 Service.
MethodScores, 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 9月 20, 2026 at 4:10 AM local time. Live blocks refresh every 15 minutes; climate averages monthly.

Davil Hofile
Written byWriter at USPOTUS

Davil Hofile is a writer at USPOTUS covering breaking news, NFL updates, viral stories, entertainment, pets, and lifestyle. He specializes in transforming complex news into clear, trustworthy, and engaging articles that help readers quickly understand what's happening across the United States. His reporting follows Google's E-E-A-T guidelines, emphasizing accuracy, credible sources, and practical value for readers.

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