Pollen count and allergy info for San Mateo County
San Mateo County pollen and allergy report • 12:00, Apr 23
Index
Low
Tree
None
Grass
Low
Weed
None
17°
5 km/h
62%Daily allergy forecast
San Mateo County pollen count forecast
Today  13 km/h 18°10° 83% | Friday 18 km/h 90%11°9° 98% | Saturday 20 km/h90%11°8° 95% |
Air pollutants
Air quality in San Mateo County today
AQI⁺
Air quality index
10AQI⁺ US
PM2.5
Fine particles (≤ 2.5 µm)
1.8µg/m³
Learn more about pollen in San Mateo County
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Where is the highest pollen level in California?
- Agoura Hills3
- Albany3
- Alpine3
- Altadena3
- Anaheim3
- Arbuckle3
- Arvin3
- Atascadero3
- Atherton3
- Avenal3
- Avocado Heights3
- Bakersfield3
- Beale Air Force Base3
- Bear Valley Springs3
- Bell3
- Bell Gardens3
- Benbow3
- Bend3
- Berkeley3
- Biggs3
- Bishop3
- Bloomington3
- Bonadelle Ranchos3
- Bonita3
- Boonville3
- Bostonia3
- Bradbury3
- Brea3
- Brooktrails3
- Buena Park3
- Burbank, Los Angeles County3
- Butte Meadows3
- Buttonwillow3
- Cabazon3
- Calabasas3
- Camarillo3
- Cambria3
- Canby3
- Cantua Creek3
- Carlsbad3
- Carpinteria3
- Carson3
- Casa Conejo3
- Casa de Oro-Mount Helix3
- Chico3
- Chino3
- Chino Hills3
- Claremont3
- Clearlake3
- Clearlake Oaks3
- Clearlake Riviera3
- Clovis3
- Coachella3
- Coalinga3
- Cobb3
- Colton3
- Colusa County3
- Commerce3
- Comptche3
- Compton3
- Corcoran3
- Corning3
- Corona3
- Coronita3
- Costa Mesa3
- Coto de Caza3
- Crest3
- Crestline3
- Creston3
- Cudahy3
- Cutler3
- Cuyama3
- Cypress3
- Dana Point3
- Del Aire3
- Del Mar3
- Desert Center3
- Desert View Highlands3
- Diamond Bar3
- Dixon Lane-MeadowCreek3
- Duarte3
- Dunnigan3
- Durham3
- East Los Angeles3
- East Oakdale3
- East Porterville3
- East Rancho Dominguez3
- East Richmond Heights3
- East Whittier3
- Eastvale3
- El Cajon3
- El Cerrito, Contra Costa County3
- El Segundo3
- Emeryville3
- Encinitas3
- Escalon3
- Esparto3
- Eucalyptus Hills3
- Exeter3
- Farmersville3
- Farmington3
- Ferndale3
- Fillmore3
- Florence-Graham3
- Fontana3
- Ford City3
- Fortuna3
- Fresno3
- Fullerton3
- Garberville3
- Garden Grove3
- Garnet3
- Gerber3
- Glendale3
- Glendora3
- Glenn3
- Gold River3
- Grand Terrace3
- Granite Hills3
- Greenacres3
- Grimes3
- Guinda3
- Hacienda Heights3
- Harbison Canyon3
- Hasley Canyon3
- Hermosa Beach3
- Hesperia3
- Hidden Hills3
- Hidden Meadows3
- Hidden Valley Lake3
- Highgrove3
- Holtville3
- Home Garden3
- Hopland3
- Hornbrook3
- Hornitos3
- Huntington Park3
- Huron3
- Hydesville3
- Idlewild3
- Indio3
- Inyo County3
- Jamul3
- Keeler3
- Kelseyville3
- Kensington3
- King City3
- La Cañada Flintridge3
- La Crescenta-Montrose3
- La Cresta3
- La Habra3
- La Habra Heights3
- La Mesa3
- La Mirada3
- La Palma3
- La Presa3
- La Puente3
- La Verne3
- Ladera Ranch3
- Laguna Beach3
- Laguna Niguel3
- Lake Forest3
- Lake Sherwood3
- Lakeport3
- Lakeside, San Diego County3
- Lamont3
- Las Flores, Orange County3
- Lawndale3
- Lemon Cove3
- Lemon Grove3
- Lennox3
- Linda3
- Lindsay3
- Live Oak, Sutter County3
- Long Beach3
- Los Angeles County3
- Los Molinos3
- Lucerne3
- Lynwood3
- Madison3
- Malibu3
- Manhattan Beach3
- Maricopa3
- Marina del Rey3
- Marysville3
- Matheny3
- Maxwell3
- Maywood3
- McFarland3
- Mecca3
- Mendocino County3
- Merced County3
- Mesa3
- Middletown3
- Mira Monte3
- Modjeska3
- Mojave3
- Monrovia3
- Montclair3
- Montebello3
- Montecito3
- Monterey County3
- Monterey Park3
- Monument Hills3
- Moorpark3
- Mountain House3
- Mountain View Acres3
- Needles3
- New Cuyama3
- Newport Beach3
- Nice3
- Norco3
- Nord3
- North Fair Oaks3
- North Lakeport3
- North Tustin3
- Oak Park3
- Oak View3
- Oakdale3
- Oildale3
- Olivehurst3
- Ontario3
- Orange Cove3
- Orinda3
- Orland3
- Orosi3
- Oroville3
- Palmdale3
- Palos Verdes Estates3
- Paramount3
- Parksdale3
- Parkwood3
- Pasadena3
- Paso Robles3
- Patterson Tract3
- Petaluma3
- Philo3
- Pico Rivera3
- Pine Mountain Club3
- Placentia3
- Pomona3
- Porterville3
- Potter Valley3
- Poway3
- Rainbow3
- Rancho Cordova3
- Rancho Cucamonga3
- Rancho Palos Verdes3
- Rancho San Diego3
- Rancho Santa Margarita3
- Rancho Tehama Reserve3
- Red Bluff3
- Redondo Beach3
- Redway3
- Redwood City3
- Redwood Valley3
- Rialto3
- Richgrove3
- Rio Dell3
- Robbins3
- Rosedale3
- Round Valley3
- Rowland Heights3
- San Clemente3
- San Dimas3
- San Fernando3
- San Juan Capistrano3
- San Miguel, San Luis Obispo County3
- Santa Ana3
- Santa Clara County3
- Santa Margarita3
- Santa Monica3
- Santa Rosa Valley3
- Santa Susana3
- Santee3
- Selma3
- Shandon3
- Sierra Madre3
- Signal Hill3
- Simi Valley3
- Smartsville3
- Soda Bay3
- Solana Beach3
- South El Monte3
- South Gate3
- South Pasadena3
- South San Gabriel3
- South San Jose Hills3
- South Taft3
- South Whittier3
- Spring Valley Lake3
- Spring Valley, San Diego County3
- Springville3
- Stallion Springs3
- Stanton3
- Stonyford3
- Strathmore3
- Summerland3
- Sun Village3
- Taft3
- Taft Heights3
- Talmage3
- Tancred3
- Tarpey Village3
- Tehama County3
- Temecula3
- Templeton3
- Terra Bella3
- Thermal3
- Thermalito3
- Thousand Oaks3
- Three Rivers3
- Topanga3
- Toro Canyon3
- Torrance3
- Trabuco Canyon3
- Tracy3
- Tulare County3
- Ukiah3
- Upland3
- Val Verde3
- Valinda3
- Valley Center3
- Vernon3
- Villa Park3
- Vina3
- Visalia3
- Vista3
- Vista Santa Rosa3
- Walnut3
- Walnut Park3
- Weedpatch3
- Weldon3
- West Bishop3
- West Sacramento3
- West Whittier-Los Nietos3
- Westlake Village3
- Westminster3
- Whittier3
- Wilkerson3
- Williams3
- Willits3
- Willowbrook3
- Willows3
- Winter Gardens3
- Woodlake3
- Woodland3
- Yolo County3
- Yorba Linda3
- Yuba City3
- Adelanto2
- Alhambra2
- Alondra Park2
- Alta Sierra, Kern County2
- Alturas2
- Antelope2
- Apple Valley2
- Arcadia2
- Armona2
- Aromas2
- Artesia2
- Auberry2
- August2
- Azusa2
- Baker2
- Baldwin Park2
- Banning2
- Bellflower2
- Bermuda Dunes2
- Beverly Hills2
- Big Pine2
- Bonsall2
- Borrego Springs2
- Calexico2
- California Pines2
- Calipatria2
- Camp Pendleton South2
- Canyon Lake2
- Cartago2
- Caruthers2
- Castaic2
- Castroville2
- Cathedral City2
- Cayucos2
- Cedar Ridge2
- Cerritos2
- Charter Oak2
- Chester2
- Chinese Camp2
- Chula Vista2
- Citrus2
- Coronado2
- Country Club2
- Covina2
- Culver City2
- Del Dios2
- Denair2
- Desert Edge2
- Desert Hot Springs2
- Desert Shores2
- Dorris2
- Downey2
- Dunsmuir2
- East Pasadena2
- East San Gabriel2
- Easton2
- El Monte, Contra Costa County2
- Elverta2
- Escondido2
- Fairbanks Ranch2
- Fairview2
- French Camp2
- Fresno County2
- Gardena2
- Green Valley, Los Angeles County2
- Greenville2
- Hamilton Branch2
- Hanford2
- Hawaiian Gardens2
- Hawthorne2
- Heber2
- Highland2
- Home Gardens2
- Homestead Valley2
- Hoopa2
- Imperial Beach2
- Independence2
- Indian Wells2
- Inglewood2
- Irvine2
- Irwindale2
- Joshua Tree2
- Jurupa Valley2
- Kennedy2
- Kerman2
- Kettleman City2
- Kings2
- Klamath County2
- La Quinta2
- Ladera Heights2
- Lake Almanor Country Club2
- Lake Almanor West2
- Lake Elsinore2
- Lakeland Village2
- Lakewood2
- Las Lomas2
- Lathrop2
- Laton2
- Leona Valley2
- Lincoln Village2
- Littlerock2
- Lockwood, Monterey County2
- Loma Linda2
- Lomita2
- Lone Pine2
- Los Alamitos2
- Los Alamos2
- Los Angeles2
- Lucerne Valley2
- Macdoel2
- Madera Acres2
- Manteca2
- March ARB2
- Marina2
- Mayfair2
- Mayflower Village2
- Meadowbrook2
- Meiners Oaks2
- Mentone2
- Mi-Wuk Village2
- Mineral2
- Moreno Valley2
- Morongo Valley2
- Morro Bay2
- Muscoy2
- National City2
- Newell2
- Niland2
- North El Monte2
- North Highlands2
- North Shore2
- Norwalk2
- Oak Hills2
- Oasis2
- Oceanside2
- Ocotillo2
- Ojai2
- Olancha2
- Old Fig Garden2
- Orange County2
- Pajaro2
- Palm Desert2
- Palm Springs2
- Phelan2
- Piru2
- Poplar-Cotton Center2
- Rancho Mirage2
- Rancho Santa Fe2
- Randsburg2
- Redlands2
- Ridgecrest2
- Rio Linda2
- Rio Vista2
- Riverside2
- Riverside County2
- Rolling Hills Estates2
- Rolling Hills, Los Angeles County2
- Rosamond2
- Rosemead2
- Rossmoor2
- Salton City2
- San Antonio Heights2
- San Diego2
- San Gabriel2
- San Joaquin County2
- San Luis Obispo2
- San Marino2
- San Pasqual2
- Santa Clarita2
- Santa Fe Springs2
- Santa Paula2
- Saticoy2
- Seal Beach2
- Searles Valley2
- Seeley2
- Shafter2
- Sky Valley2
- Somis2
- Stevenson Ranch2
- Stockton2
- Sunnyside2
- Taft Mosswood2
- Temple City2
- Tennant2
- Thousand Palms2
- Trona2
- Tulelake2
- Turlock2
- Tustin2
- Twentynine Palms2
- Ventura2
- View Park-Windsor Hills2
- Vincent2
- Warm Springs2
- Weitchpec2
- West Athens2
- West Carson2
- West Covina2
- West Hollywood2
- West Puente Valley2
- West Rancho Dominguez2
- Westmont2
- Westwood2
- Willow Creek2
- Wofford Heights2
- Woodcrest2
- Woodville2
- Yermo2
- Yucca Valley2
- Acalanes Ridge1
- Acampo1
- Acton1
- Adin1
- Agua Dulce1
- Aguanga1
- Ahwahnee1
- Alameda County1
- Alamo1
- Albion1
- Alhambra Valley1
- Aliso Viejo1
- Allendale1
- Allensworth1
- Alpaugh1
- Alta1
- Alum Rock1
- Amador1
- Amador City1
- American Canyon1
- Amesti1
- Anderson1
- Angels1
- Angwin1
- Antioch1
- Anza1
- Aptos1
- Aptos Hills-Larkin Valley1
- Arcata1
- Arden-Arcade1
- Arnold1
- Arroyo Grande1
- Ashland1
- Atwater1
- Auburn1
- Auburn Lake Trails1
- Avalon1
- Avery1
- Avila Beach1
- Bakersfield Country Club1
- Barstow1
- Bass Lake1
- Bay Point1
- Bayview, Humboldt County1
- Baywood Park1
- Bear Valley, Mariposa County1
- Beaumont1
- Beckwourth1
- Bella Vista1
- Belmont1
- Belvedere1
- Ben Lomond1
- Benicia1
- Benton1
- Berry Creek1
- Bertsch-Oceanview1
- Bethel Island1
- Big Bear City1
- Big Bear Lake1
- Big River1
- Biola1
- Black Point-Green Point1
- Blackhawk1
- Blacklake1
- Blue Lake1
- Blythe1
- Bodega1
- Bodega Bay1
- Bodfish1
- Bolinas1
- Bonny Doon1
- Bootjack1
- Boron1
- Boronda1
- Boulder Creek1
- Boyes Hot Springs1
- Brawley1
- Brentwood1
- Bret Harte1
- Bridgeport1
- Brisbane1
- Broadmoor1
- Brookdale1
- Brooks1
- Buckhorn1
- Bucks Lake1
- Buellton1
- Burlingame1
- Burney1
- Butte1
- Butte Creek Canyon1
- Butte Valley1
- Byron1
- Bystrom1
- Calaveras1
- California City1
- Calimesa1
- Calistoga1
- Callender1
- Calpine1
- Camanche Village1
- Cambrian Park1
- Cameron Park1
- Camino1
- Camino Tassajara1
- Camp Nelson1
- Camp Pendleton Mainside1
- Campbell1
- Campo1
- Camptonville1
- Canyondam1
- Capitola1
- Carmel-by-the-Sea1
- Carmel Valley Village1
- Carmet1
- Carmichael1
- Carnelian Bay1
- Caspar1
- Castle Hill1
- Castro Valley1
- Catheys Valley1
- Cazadero1
- Cedar Flat1
- Centerville, Fresno County1
- Ceres1
- Chalfant1
- Challenge-Brownsville1
- Channel Islands Beach1
- Cherry Valley1
- Cherryland1
- China Lake Acres1
- Chowchilla1
- Chualar1
- Citrus Heights1
- Clay1
- Clayton1
- Clio1
- Clipper Mills1
- Cloverdale1
- Clyde1
- Coarsegold1
- Coffee Creek1
- Cold Springs, Tuolumne County1
- Coleville1
- Colfax1
- Collierville1
- Colma1
- Coloma1
- Columbia1
- Concord1
- Concow1
- Contra Costa Centre1
- Contra Costa County1
- Copperopolis1
- Corralitos1
- Corte Madera1
- Cotati1
- Cottonwood, Shasta County1
- Courtland1
- Covelo1
- Crescent City1
- Crockett1
- Cromberg1
- Crowley Lake1
- Cupertino1
- Cutten1
- Daly City1
- Danville1
- Davenport1
- Davis1
- Day Valley1
- Deer Park1
- Del Monte Forest1
- Del Rey1
- Del Rey Oaks1
- Del Rio1
- Delano1
- Delhi1
- Descanso1
- Diablo1
- Diamond Springs1
- Dillon Beach1
- Dinuba1
- Discovery Bay1
- Dixon1
- Dobbins1
- Dogtown1
- Dollar Point1
- Dorrington1
- Dos Palos1
- Downieville1
- Dublin1
- Dutch Flat1
- Earlimart1
- East Foothills1
- East Hemet1
- East Palo Alto1
- East Quincy1
- East Shore1
- East Sonora1
- Edwards Air Force Base1
- El Centro1
- El Dorado County1
- El Dorado Hills1
- El Granada1
- El Portal1
- El Rio1
- El Sobrante, Contra Costa County1
- El Verano1
- Eldridge1
- Elk Creek1
- Elk Grove1
- Elkhorn1
- Emerald Lake Hills1
- Empire1
- Etna1
- Fair Oaks1
- Fairfax, Marin County1
- Fairfield1
- Fairmead1
- Fallbrook1
- Felton1
- Fetters Hot Springs-Agua Caliente1
- Fiddletown1
- Fieldbrook1
- Fields Landing1
- Firebaugh1
- Fish Camp1
- Florin1
- Folsom1
- Foothill Farms1
- Forest Meadows1
- Forest Ranch1
- Foresta1
- Foresthill1
- Forestville1
- Fort Bragg1
- Fort Irwin1
- Fort Jones1
- Foster City1
- Fountain Valley1
- Fowler1
- Franklin, Sacramento County1
- Frazier Park1
- Freedom1
- Fremont1
- French Gulch1
- French Valley1
- Friant1
- Fruitdale1
- Fruitridge Pocket1
- Fulton1
- Galt1
- Garden Acres1
- Gasquet1
- Georgetown1
- Geyserville1
- Gilroy1
- Glen Ellen1
- Gold Mountain1
- Golden Hills1
- Goleta1
- Gonzales1
- Good Hope1
- Goshen1
- Graeagle1
- Granite Bay1
- Grass Valley1
- Graton1
- Grayson1
- Green Acres1
- Greenfield, Monterey County1
- Greenview1
- Grenada1
- Grizzly Flats1
- Groveland1
- Grover Beach1
- Guadalupe1
- Guerneville1
- Gustine1
- Half Moon Bay1
- Happy Camp1
- Happy Valley1
- Hartland1
- Hartley1
- Hathaway Pines1
- Hayfork1
- Hayward1
- Healdsburg1
- Hemet1
- Herald1
- Hercules1
- Highlands1
- Hillsborough1
- Hilmar-Irwin1
- Hiouchi1
- Hollister1
- Homeland1
- Hughson1
- Humboldt County1
- Humboldt Hill1
- Huntington Beach1
- Idyllwild-Pine Cove1
- Igo1
- Imperial1
- Indianola1
- Interlaken1
- Inverness1
- Inyokern1
- Ione1
- Iron Horse1
- Isla Vista1
- Isleton1
- Ivanhoe1
- Jackson1
- Jamestown1
- Janesville1
- Jenner1
- Johnstonville1
- Johnsville1
- Julian1
- June Lake1
- Kelly Ridge1
- Kentfield1
- Kenwood1
- Kern1
- Kernville1
- Keyes1
- Kings Beach1
- Kingsburg1
- Kirkwood1
- Knightsen1
- La Honda1
- La Riviera1
- La Selva Beach1
- Ladera1
- Lafayette1
- Laguna Hills1
- Laguna Woods1
- Lagunitas-Forest Knolls1
- Lake Arrowhead1
- Lake County1
- Lake Don Pedro1
- Lake Isabella1
- Lake Los Angeles1
- Lake Nacimiento1
- Lake of the Pines1
- Lake San Marcos1
- Lake Shastina1
- Lake Wildwood1
- Lakehead1
- Lakeview1
- Lancaster1
- Larkfield-Wikiup1
- Larkspur1
- Laytonville1
- Le Grand1
- Lebec1
- Lee Vining1
- Leggett1
- Lemoore Station1
- Lenwood1
- Lewiston1
- Lexington Hills1
- Lincoln1
- Linden1
- Little Grass Valley1
- Little River1
- Live Oak CDP1
- Livermore1
- Livingston1
- Lockeford1
- Lodi1
- Loma Mar1
- Loma Rica1
- Lompico1
- Lompoc1
- London1
- Long Barn1
- Loomis1
- Los Altos1
- Los Altos Hills1
- Los Banos1
- Los Berros1
- Los Gatos1
- Los Olivos1
- Los Osos1
- Lost Hills1
- Lower Lake1
- Loyalton1
- Loyola1
- Lucas Valley-Marinwood1
- Madeline1
- Madera County1
- Magalia1
- Mammoth Lakes1
- Manchester1
- Manila1
- Marin City1
- Marin County1
- Mariposa County1
- Markleeville1
- Martell1
- Martinez1
- Mather1
- McArthur1
- McCloud1
- McKinleyville1
- Mead Valley1
- Meadow Vista1
- Mendota1
- Menifee1
- Menlo Park1
- Mesa Verde1
- Mesa Vista1
- Meyers1
- Midpines1
- Midway City1
- Mill Valley1
- Millbrae1
- Millerton1
- Millville1
- Milpitas1
- Minkler1
- Mission Canyon1
- Mission Hills1
- Mission Viejo1
- Modesto1
- Mokelumne Hill1
- Mono1
- Mono Vista1
- Montague1
- Montalvin Manor1
- Montara1
- Monte Rio1
- Monte Sereno1
- Monterey1
- Montgomery Creek1
- Morada1
- Moraga1
- Morgan Hill1
- Moss Beach1
- Mount Hermon1
- Mount Shasta1
- Mountain Gate1
- Mountain Ranch1
- Mountain View, Santa Clara County1
- Muir Beach1
- Murphys1
- Murrieta1
- Myrtletown1
- Napa County1
- Nevada1
- Nevada City1
- Newark1
- Newcastle1
- Newman1
- Nicasio1
- Nipomo1
- North Auburn1
- North Edwards1
- North Fork1
- North Richmond1
- North San Juan1
- Novato1
- Nuevo1
- Oak Run1
- Oakhurst1
- Oakland1
- Oakley1
- Occidental1
- Oceano1
- Old Station1
- Onyx1
- Orangevale1
- Orcutt1
- Oroville East1
- Oxnard1
- Pacheco1
- Pacific Grove1
- Pacifica1
- Palermo1
- Palo Alto1
- Palo Cedro1
- Paradise, Paradise County1
- Paradise Park1
- Parklawn1
- Parkway1
- Parlier1
- Pasatiempo1
- Penn Valley1
- Penngrove1
- Perris1
- Pescadero1
- Phoenix Lake1
- Piedmont1
- Pike1
- Pine Flat1
- Pine Grove1
- Pine Hills1
- Pine Mountain Lake1
- Pine Valley1
- Pinole1
- Piñon Hills1
- Pioneer1
- Pismo Beach1
- Pittsburg1
- Pixley1
- Placer County1
- Placerville1
- Planada1
- Platina1
- Pleasant Hill1
- Pleasanton1
- Pleasure Point1
- Plumas1
- Plumas Lake1
- Plymouth1
- Point Arena1
- Point Reyes Station1
- Pollock Pines1
- Port Hueneme1
- Portola1
- Portola Valley1
- Potrero1
- Prunedale1
- Quincy1
- Rail Road Flat1
- Ramona1
- Rancho Calaveras1
- Rancho Murieta1
- Red Corral1
- Redding1
- Reedley1
- Reliez Valley1
- Richmond1
- Ridgemark1
- Rio del Mar1
- Ripon1
- River Pines1
- Riverbank1
- Riverdale1
- Riverdale Park1
- Rocklin1
- Rodeo1
- Rohnert Park1
- Rollingwood1
- Romoland1
- Rosemont1
- Roseville1
- Ross1
- Rough and Ready1
- Rouse1
- Running Springs1
- Rutherford1
- Sacramento County1
- Salida1
- Salinas1
- San Andreas1
- San Anselmo1
- San Benito County1
- San Bernardino County1
- San Bruno1
- San Carlos1
- San Diego Country Estates1
- San Diego County1
- San Francisco1
- San Jacinto1
- San Jose1
- San Juan Bautista1
- San Leandro1
- San Lorenzo1
- San Marcos1
- San Martin1
- San Mateo1
- San Mateo County1
- San Pablo1
- San Rafael1
- San Ramon1
- Sanger1
- Santa Barbara County1
- Santa Cruz County1
- Santa Maria1
- Santa Rosa1
- Santa Venetia1
- Santa Ynez1
- Saranap1
- Saratoga1
- Sattley1
- Sausalito1
- Scotts Valley1
- Sea Ranch1
- Seacliff1
- Seaside1
- Sebastopol1
- Sereno del Mar1
- Shasta County1
- Shasta Lake1
- Shaver Lake1
- Sheep Ranch1
- Shell Ridge1
- Shelter Cove1
- Sheridan1
- Shingle Springs1
- Shingletown1
- Sierra1
- Sierra City1
- Sierraville1
- Silver Lakes1
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