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Air quality in San Francisco
Air quality index (AQI) and PM2.5 air pollution in San Francisco
625.9K people follow this city
San Francisco Air Quality Map
Real-time San Francisco air pollution map
AIR QUALITY DATA CONTRIBUTORS
210 Contributors
See all
Pollen
What is the pollen count in San Francisco today?
 | Index | None | |
 | Tree pollen | None | |
 | Grass pollen | None | |
 | Weed pollen | None |
Source: tomorrow.io
Weather
What is the current weather in San Francisco?
| Weather | Clear sky |
| Temperature | 66.2°F |
| Humidity | 73% |
| Wind | 8.1 mp/h |
| Pressure | 29.9 Hg |
live aqi city ranking
Real-time USA city ranking
| # | city | US AQI |
|---|---|---|
| 1 |  Klamath, Oregon | 199 |
| 2 | Burns, Oregon | 181 |
| 3 | La Pine, Oregon | 167 |
| 4 | Nampa, Idaho | 161 |
| 5 | Sisters, Oregon | 155 |
| 6 | McCall, Idaho | 151 |
| 7 | Talent, Oregon | 144 |
| 8 | Wellington, Colorado | 133 |
| 9 | Ashland, Oregon | 132 |
| 10 | Westminster, Colorado | 132 |
(local time)
SEE WORLD AQI RANKING
3D animated air pollution map
live San Francisco aqi ranking
Real-time San Francisco air quality ranking
| # | station | US AQI |
|---|---|---|
| 1 | Brannan St | 277 |
| 2 | 23rd Street & 3rd Street | 99 |
| 3 | 1414 Washington Boulevard | 98 |
| 4 | 15th and Noe Street | 59 |
| 5 | Miraloma Park O'Shaughnessy | 59 |
| 6 | Parkmerced-SFSU Bay Conference Center | 59 |
| 7 | 29th Ave and Judah | 55 |
| 8 | 491 Corbett Avenue | 55 |
| 9 | Baker Beach | 55 |
| 10 | Park Hill Avenue | 55 |
(local time)
SEE WORLD AQI RANKING
US AQI
42
live AQI index
Good
Overview
What is the current air quality in San Francisco?
| Air pollution level | Air quality index | Main pollutant |
|---|---|---|
| Good | 42 US AQI | PM2.5 |
| Pollutants | Concentration | |
|---|---|---|
| PM2.5 | 7.6µg/m³ | |
| O3 | 28µg/m³ | |
| NO2 | 20.7µg/m³ | |
| CO | 343.5µg/m³ | |
!
PM2.5
x1.5
PM2.5 concentration in San Francisco is currently 1.5 times the WHO annual air quality guideline value
Health Recommendations
What is the current air quality in San Francisco?
 | Enjoy outdoor activities |
 | Open your windows to bring clean, fresh air indoors GET A MONITOR |
Forecast
San Francisco air quality index (AQI) forecast
| Day | Pollution level | Weather | Temperature | Wind |
|---|---|---|---|---|
| Sunday, Jul 21 | Good 29 AQI US |  | 75.2° 53.6° |  8.9 mp/h |
| Monday, Jul 22 | Good 23 AQI US |  | 73.4° 59° | 8.9 mp/h |
| Tuesday, Jul 23 | Good 38 AQI US |  | 71.6° 60.8° | 11.2 mp/h |
| Today | Good 42 AQI US | 30% | 71.6° 60.8° | 11.2 mp/h |
| Thursday, Jul 25 | Moderate 54 AQI US  | | 68° 55.4° | 8.9 mp/h |
| Friday, Jul 26 | Good 24 AQI US | | 60.8° 53.6° | 15.7 mp/h |
| Saturday, Jul 27 | Good 29 AQI US | 20% | 60.8° 55.4° | 15.7 mp/h |
| Sunday, Jul 28 | Moderate 62 AQI US | 20% | 60.8° 55.4° | 13.4 mp/h |
| Monday, Jul 29 | Moderate 57 AQI US | | 64.4° 57.2° | 11.2 mp/h |
| Tuesday, Jul 30 | Good 45 AQI US | | 62.6° 55.4° | 13.4 mp/h |
Interested in hourly forecast? Get the app
How to best protect from air pollution?
San Francisco air quality data attribution
210Contributors
- California Air Resources Board (CARB)
1 station
2 Government Contributors
- Safer Together San Francisco
1 station
Non-profit organization Contributor
- Pat Conway
1 station
- Aaron Solochek
1 station
- Travis Thompson
1 station
- chono
1 station
- bearklaw
1 station
5 Individual Contributors
202 Anonymous contributors202 stations
202 Anonymous Contributors
5 Data sources
Data validated and calibrated by IQAirWhere is the cleanest air quality in San Francisco?
- Presidio Heights 1
- 35th & Moraga 10
- CEEP at Star 14
- Chenery St 16
- Greenwich and Laguna 16
- McAllister Street 16
- The Little School 16
- Valencia Street 17
- 1728 Diamond Street 19
- Mission District - San Jose Avenue 19
- Parkmerced 19
- Pine Street 19
- Pine Street & California Street 19
- Western Addition 19
- Cortland Avenue 20
- 121 Day Street 22
- Garfield Street 22
- Grenard Terrace 22
- Mountain Lake Park 22
- 16 Seal Rock Dr 23
- 333 Diamond Street 23
- 10th and Fulton Deck 24
- Balboa Street 24
- Outer Sunset 40th & Irving 24
- Waller Street 24
- Portola Street 25
- 4031 21st Street 26
- Castro Duncan Open Space 26
- Clement Street 26
- House Guerrero 26
- Pacific Avenue 26
- Greenwich Street 27
- Lippard Avenue 27
- Mendell & La Salle Ave 27
- Capitol Avenue 28
- Jackson & Walnut 28
- Mid The Page Street 28
- Potrero Hill 18th & Mississippi 28
- Sea Cliff 28
- 34th Avenue & Cabrillo Street 29
- Burlwood Drive 29
- Ingleside Terraces 29
- McAllister 29
- Pacific Heights-GEOHealth_VMT_Basadre 29
- West of Twin Peaks 29
- California Street 30
- 18th and Rhode Island Permaculture Garden 31
- Espirit Park Roof 31
- Lake & 21st Avenue 31
- 8th and Kirkham 32
- Broadway between Hyde and Larkin 32
- McLaren Avenue 32
- Sunnyside Elementary School 32
- Upper Elsie Coyotes 32
- Inner Sunset 33
- Oakdale Avenue 33
- Polk Gulch 33
- 144 Funston Avenue 34
- California College of The Arts 34
- Financial District 34
- Flood Avenue 34
- Lakeview near Margaret 34
- Lombard Street 34
- Mission Bernal Hospital 34
- Potomac Street 34
- Rivoli Street 34
- San Jose Ave and Ocean Ave 35
- 18thAve/TaravalUlloa 36
- 540 Victoria Street 36
- 915 Cayuga Ave 36
- Bernal Heights 2 36
- Bryant & 26h Street Intersection 36
- Cow Hollow 36
- Dolores and 28th 36
- Golden Gate 36
- Silver Terrace 36
- 29th Avenue 37
- 35 Keyes Ave 37
- 847-815 Chenery St 37
- Anza Street 37
- James Lick 37
- Pacheco Street 37
- Pacific Primary 37
- SF Maritime NHP 37
- 12th Ave 38
- 21st & Balboa 38
- 2635 16th Avenue 38
- California Tennis Club 1770 Scott 38
- 3398 Baker Street 39
- Baker St 39
- Congo Street 39
- Forest Side 39
- Green Street 39
- Kirkham Street 39
- Richland near Leese 39
- Stanyan Street 39
- Sunnyside 2 39
- Bay Street 40
- 150 Parker Ave. 41
- 2318 Fillmore Street 41
- 512 College Avenue 41
- 884 Silver Avenue 41
- Banks Street 41
- Highland Avenue 41
- India Basin 41
- Mission District 41
- Noe Valley 41
- St Helena Cooperative Nursery School 41
- Vicksburg Street 41
- 181-47 Dalewood Way 42
- 662 Cayuga Ave 42
- Capp Street Garden 42
- Churchill Park 42
- Mississippi Street 42
- Quarry Road 42
- Quintara Street 2 42
- Anza Vista-the_balbs 43
- Edgehill Open Space Park 43
- Hickory Street 43
- Kensington Way 43
- Mojave Street 43
- Molimo Drive 43
- Page Street 43
- Staples Avenue 43
- 1448 Plymouth Avenue 44
- 1770 McKinnon Avenue 44
- 4362 24th Street 44
- 575 Magellan Avenue 44
- Buchanan and Broadway 44
- CesarChavezDolores 44
- Chenery St 500 block 44
- LH Webster 44
- Santa Rosa Avenue 44
- Sunnyside St 44
- Tennessee Street 44
- Valley Street 44
- West of Twin Peaks 2 44
- Tompkins Avenue 45
- 116 Marietta Drive 46
- 4010 Eureka Valley 46
- 607 Andover Street 46
- Ashbury St 46
- De Haro Blvd 46
- Duboce Triangle 46
- Jersey and Vicksberg II 46
- Martha Avenue 46
- Mid Liberty Street 46
- Noe Valley 2 46
- 19 St Charles Avenue 47
- 215 Connecticut St 47
- 4066 23rd Street 47
- 5235 Diamond Heights Boulevard 47
- 6th and Hugo Street 47
- Bernal Heights 47
- Cole Valley 47
- Filbert Street 47
- Gladys Street 47
- Outer Sunset 4 47
- Pioneer Park 47
- Sunnyside 47
- 3801 21st Street 48
- Cameo Way 48
- Cumberland Street 48
- Diamond Street & Conrad Street 48
- Ingleside 48
- Mission District & Osage Street 48
- Hazelwood at Mangels 49
- Outer Sunset-2340 42nd Ave 49
- 427 Kirkham Street 50
- Downey Street 50
- Safer Together/Bernal 50
- 313 Shotwell Street 51
- Church Street & Liberty Street 51
- Golden Gate Height 51
- Noe Street 2 51
- Ripley Street 51
- Sait Germain Avenue 51
- South Beach Marina Apartments 51
- 15th and Castro St. 52
- 188 S Park St 52
- 28th Street at Diamond (Outside) 52
- Bernal Street 52
- Grand View Avenue 52
- Illinois Street 52
- Laguna Street 52
- Lakeshore 52
- Pacific Heights 2 52
- Southern Heights Avenue 52
- States Street 52
- Telegraph Hill 52
- Wright Street 2 52
- Mission District 2 53
- Scott Street 53
- Shipley Street 53
- Walter Street 53
- 1741-1701 Mason St 54
- 29th Ave and Judah 55
- 491 Corbett Avenue 55
- Baker Beach 55
- Park Hill Avenue 55
- Potrero Hill 2 55
- Rincon Hill 55
- Shore View Ave 55
- 15th and Noe Street 59
- Miraloma Park O'Shaughnessy 59
- Parkmerced-SFSU Bay Conference Center 59
- 1414 Washington Boulevard 98
- 23rd Street & 3rd Street 99
- Brannan St 277
AQI US, Metric