The Air District will be holding a virtual webinar on April 10 from 6 -7 PM to provide an overview of the proposed budget for fiscal year (FY) 2025-2026 and proposed fee regulation amendments.
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San Francisco County
Learn about San Francisco County - its climate, potential air pollution concerns, and current air quality. You can also view upcoming Air District events in San Francisco County and read about local efforts to improve air quality.
Latest News
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Point Richmond and North Richmond OdorMarch 27, 2025
The Air District has confirmed the source of the odor to be the West Contra Costa County Landfill's compost operation.
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Air District asks community members to help shape how millions in community funds are spentMarch 25, 2025
The Air District is preparing to distribute over $124 million in funding to support local communities overburdened by air pollution — and we need your input! This funding comes from penalties collected from industry and businesses that violate Air District regulations. Your feedback will help shape how these funds are used to reduce air pollution and improve health outcomes in your community.
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Join Webinar to Explore Careers at the Air DistrictMarch 21, 2025
Join us for a unique opportunity to engage with Air District executives and learn about career opportunities and pathways within the organization!
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March 13, 2025
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Upcoming Events
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Other News Articles
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2/13/2025 MRC Refinery Fire Information
February 13, 2025
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2/1/2025 Air quality advisory for smoke from fire at MRC Refinery in Martinez
February 1, 2025
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1/28/2025 Air District asks public not to light firecrackers and fireworks or burn wood over Lunar New Year holiday
January 28, 2025
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1/22/2025 Air District launches new name and branding
January 22, 2025
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12/30/2024 Air District asks public to not burn wood through the New Year’s holiday
December 30, 2024
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12/19/2024 Spare the Air Alert issued for Friday, December 20. Wood-burning is prohibited.
December 19, 2024
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12/8/2024 Spare the Air Alert issued for today, Sunday, December 8
December 8, 2024
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11/30/2024 Spare the Air Alerts issued for Sunday and Monday due to wood smoke pollution
November 30, 2024
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11/26/2024 Air District asks public to not burn wood over Thanksgiving holiday
November 26, 2024
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11/19/2024 Air District to host Clean Air Talk in San Lorenzo on December 7
November 19, 2024
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11/12/2024 Air District to represent Bay Area at COP29
November 12, 2024
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11/6/2024 Air District releases woodsmoke white paper for public comment
November 6, 2024
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10/31/2024 Air District and CARB fine Valero Refining Co. $82 million for air quality violations
October 31, 2024
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10/25/2024 Air District issues air quality advisory for Friday and Saturday
October 25, 2024
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10/18/2024 Air District issues air quality advisory for Friday
October 18, 2024
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10/17/2024 Air District to host Clean Air Talk in East Palo Alto on November 2
October 17, 2024
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10/17/2024 Air District fines Radius Recycling, formerly Schnitzer Steel, $575,000 for air quality violations
October 17, 2024
San Francisco County rests at the northern end of the San Francisco Peninsula, bounded by San Mateo County in the south, the Pacific Ocean to the west, San Francisco Bay to the east, and the Golden Gate Bridge to the north. Three San Francisco County representatives sit on the Air District’s Board of Directors.
Climate
Because most of San Francisco's landscape is below 200 feet, the marine layer flows across most of the city, creating a cool and windy climate. The southeastern portion of the county, however, tends to be warmer and sunnier, with fewer foggy days. In the winter, average daily temperatures are mild overnight and moderate during the day, while summertime temperatures tend to remain moderate throughout the season. The highest wind speeds are focused along the western coast and generally mild throughout the county. Rainfall averages about 20 inches per year, with the highest amounts reported on the western coast.
Interactive Air Monitoring Stations Map
Air Quality in San Francisco County
Ozone and fine particle pollution, or PM2.5, are the major regional air pollutants of concern in the San Francisco Bay Area. Ozone is primarily a problem in the summer, and fine particle pollution in the winter.
In San Francisco, ozone almost never exceeds health standards and PM2.5 only exceeds the national standard once or twice each year, generally. Being surrounded by water on three sides keeps temperatures within a narrow range, whereby winter low temperatures rarely reach freezing and summer high temperatures stay well below levels where ozone would form and become unhealthy.
Spare the Air Status
Last Updated: 4/21/2017