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Saturday, September 26

September Arts & Culture Fest w/ Live Mural Painting (Downtown San Mateo)
Saturday, September 26 – 11:00 am - Ends at 6:00 pm | Cost: FREE | Downtown San Mateo
September Arts & Culture Fest w/ Live Mural Painting (Downtown San Mateo)
Join us in the heart of Downtown San Mateo for a fun day-long celebration of art, music, dance, poetry, food, and culture! From live bands and dazzling cultural performances to interactive kids’ activities, LIVE mural painting competitions, artists selling original handcrafted artworks, and poetry open ...
Hands-On Family Science Day: Stargazing & Planetarium Shows (San Mateo)
Saturday, September 26 – 11:00 am - Ends at 11:00 pm | Cost: FREE*
*No advance registration is required.
| College of San Mateo
Hands-On Family Science Day: Stargazing & Planetarium Shows (San Mateo)
College of San Mateo’s annual Family Science Day offers hands-on science activities for all ages, including maker projects, walk-in STEM workshops, hourly planetarium shows, solar-telescope viewing, and a firefighter demonstration. The evening program includes NASA scientist Dr. Brian Day’s keynote on lunar activity, followed by ...

Wednesday, September 30

$35 for Locally-Run Independent Internet Service (SF + Bay Area)
Wednesday, September 30 – All Day | Cost: $35*
*$35 per month - Fast Speeds | No contracts | No hidden fees
| All Over the Bay Area
$35 for Locally-Run Independent Internet Service (SF + Bay Area)

Join thousands of Bay Area residents who’ve chosen Monkeybrains for fast internet, honest pricing, and friendly local support. Why choose Monkeybrains? Local Internet. Built Right. Fast Speeds | No contracts | No hidden fees RESIDENTIAL Home internet gets an upgrade. $35/MO Honest pricing Month-to-month No ...Monthly

Friday, October 2

History Museum: Free First Fridays (Redwood City)
Friday, October 2 – All Day | Cost: FREE | San Mateo County History Museum
History Museum: Free First Fridays (Redwood City)

Enjoy free admission from 10 am to 4 pm, every first Friday of the month, at the San Mateo History Museum. Explore the museum housed in the 1910 County Courthouse; listed on the National Register of Historic Places, it features a stained glass dome and mosaic tile floor. The History Museum is ...Monthly

Saturday, October 3

Free Nature Scavenger Hunt: Help Count Birds, Bugs + Species (Palo Alto)
Saturday, October 3 – 9:00 am - Ends at 11:00 am | Cost: FREE*
*RSVP required
| Environmental Volunteers EcoCenter
Free Nature Scavenger Hunt: Help Count Birds, Bugs + Species (Palo Alto)
Join the Environmental Volunteers for a Fall BioBlitz in the Palo Alto Baylands Nature Preserve and Byxbee Park. Fall is a wonderful time for migrating birds! Join us to learn about some of our native and non-native species, become a community scientist and help us collect scientific data. Please ...
Bank of America’s “Museums On Us” Free Museum Weekend (2026)
Bank of America's "Museums On Us" Free Museum Weekend (2026)

Holders of Bank of America, Merrill Lynch, or U. S. Trust cardholders (credit cards and debit cards) get free admission to six Bay Area museums, two Sacramento museums and to more than 225 cultural institutions nationwide, for the first full weekend each month including the de ...Monthly

“Healthy Parks Healthy People”: Monthly Nature Walks | Bay Area
Saturday, October 3 – 10:00 am - Ends at 12:00 pm | Cost: FREE | San Francisco Bay Area
"Healthy Parks Healthy People": Monthly Nature Walks | Bay Area

Enjoy a free, monthly outdoor walk on the first Saturday of every month as part of the “Healthy Parks, Healthy People” program. First Saturday Programs are introductory walking/physical activity programs that occur on the first Saturday of each month throughout the Bay Area. Please note that ...Monthly

Sunday, October 4

Bank of America’s “Museums On Us” Free Museum Weekend (2026)
Bank of America's "Museums On Us" Free Museum Weekend (2026)

Holders of Bank of America, Merrill Lynch, or U. S. Trust cardholders (credit cards and debit cards) get free admission to six Bay Area museums, two Sacramento museums and to more than 225 cultural institutions nationwide, for the first full weekend each month including the de ...Monthly

Thursday, October 8

Comedy Sharks Standup Night | Peninsula
Thursday, October 8 – 7:30 pm - Ends at 9:00 pm | Cost: FREE | Hop Dogma Brewing Company
Comedy Sharks Standup Night | Peninsula

Every month, Comedy Sharks standup night features some of the Bay Area’s best comedians. Come on out and enjoy some laughs with your neighbors, hosted by Phil Griffiths & Hop Dogma Brewing Company. The show starts at 7:30 pm; seating is limited, so be sure to ...Monthly

Sunday, October 11

“Sunday Assembly” Silicon Valley Community Gathering | Mountain View
Sunday, October 11 – 10:30 am - Ends at 12:30 pm | Cost: FREE | Masonic Lodge
"Sunday Assembly" Silicon Valley Community Gathering | Mountain View

“Live Better, Help Often, Wonder More” is the motto for Sunday Assembly Silicon Valley (SASV), an international community movement that celebrates life. The radically inclusive SASV is a secular and service nonprofit that celebrates life, welcomes all people and supports everyone fulfilling their potential. It aims ...Monthly

Monday, October 12

53rd Safeway World Championship Pumpkin Weigh-Off (Half Moon Bay)
Monday, October 12 – 7:00 am - Ends at 11:00 am | Cost: FREE*
*Free to watch online; open to growers of giant competition-sized pumpkins only
| I.D.E.S. Grounds (Half Moon Bay)
53rd Safeway World Championship Pumpkin Weigh-Off (Half Moon Bay)
Will the impressive world heavyweight record of 2,749 pounds set at our 2023 event get squashed by a Volkswagen-sized pumpkin in 2026 in Half Moon Bay? No weigh? Weigh! Bring it on beefy, brawny, burly behemoths! The excitement is building in Pumpkintown as the World’s Greatest Gourd ...

Thursday, October 15

$35 for Locally-Run Independent Internet Service (SF + Bay Area)
Thursday, October 15 – All Day | Cost: $35*
*$35 per month - Fast Speeds | No contracts | No hidden fees
| All Over the Bay Area
$35 for Locally-Run Independent Internet Service (SF + Bay Area)

Join thousands of Bay Area residents who’ve chosen Monkeybrains for fast internet, honest pricing, and friendly local support. Why choose Monkeybrains? Local Internet. Built Right. Fast Speeds | No contracts | No hidden fees RESIDENTIAL Home internet gets an upgrade. $35/MO Honest pricing Month-to-month No ...Monthly

Beats, Brews & Vines Free Downtown Millbrae Festival
Thursday, October 15 – 6:00 pm - Ends at 8:00 pm | Cost: FREE | Downtown Millbrae
Beats, Brews & Vines Free Downtown Millbrae Festival

Spend your summer nights in Downtown Millbrae at Beats, Brews & Vines, a free outdoor concert series featuring live music, local food, and refreshing drinks! Join us every third Thursday from August through October, 6:00–8:00 PM, at Broadway & Hillcrest. 2026 Beats, Brews & Vines ...

Saturday, October 17

54th Annual Half Moon Bay Art & Pumpkin Festival (Oct. 17-18)
Saturday, October 17 – 9:00 am - Ends at 5:00 pm | Cost: FREE*
*Free Admission for All
| Downtown Half Moon Bay
54th Annual Half Moon Bay Art & Pumpkin Festival (Oct. 17-18)

Welcome to the World Pumpkin Capital! The legendary Half Moon Bay Art & Pumpkin Festival returns October 17 & 18, 2026, transforming historic Main Street into the ultimate celebration of autumn, pumpkins, art, food, music and good old fashioned fun. Admission is FREE. The experience ...

Sunday, October 18

54th Annual Half Moon Bay Art & Pumpkin Festival (Oct. 17-18)
Sunday, October 18 – 9:00 am - Ends at 5:00 pm | Cost: FREE*
*Free Admission for All
| Downtown Half Moon Bay
54th Annual Half Moon Bay Art & Pumpkin Festival (Oct. 17-18)

Welcome to the World Pumpkin Capital! The legendary Half Moon Bay Art & Pumpkin Festival returns October 17 & 18, 2026, transforming historic Main Street into the ultimate celebration of autumn, pumpkins, art, food, music and good old fashioned fun. Admission is FREE. The experience ...

Wednesday, October 21

Orionids Meteor Shower: Most Beautiful Shower of 2026
Wednesday, October 21 – 11:59 pm - Ends at 6:00 am | Cost: FREE | San Francisco Bay Area
Orionids Meteor Shower: Most Beautiful Shower of 2026
The Orionids, which peak during mid-October each year, are considered to be one of the most beautiful showers of the year. Orionid meteors are known for their brightness and their speed. These meteors are fast—they travel at about 148,000 mph (66 km/s) into the Earth’s ...

Tuesday, October 27

Free National Parks Day: Muir Woods + Yosemite: Teddy Roosevelt’s Bday 2026
Free National Parks Day: Muir Woods + Yosemite: Teddy Roosevelt's Bday 2026

Sometimes you’ve just got to get away from it all and clear your head with the peace and serenity of a national park. On certain “fee-free” days throughout the year, enjoy free entry to all national parks and monuments, including Muir Woods and Yosemite National Park, and ...

Wednesday, November 4

Friday, November 6

History Museum: Free First Fridays (Redwood City)
Friday, November 6 – All Day | Cost: FREE | San Mateo County History Museum
History Museum: Free First Fridays (Redwood City)

Enjoy free admission from 10 am to 4 pm, every first Friday of the month, at the San Mateo History Museum. Explore the museum housed in the 1910 County Courthouse; listed on the National Register of Historic Places, it features a stained glass dome and mosaic tile floor. The History Museum is ...Monthly

Saturday, November 7

“Healthy Parks Healthy People”: Monthly Nature Walks | Bay Area
Saturday, November 7 – 10:00 am - Ends at 12:00 pm | Cost: FREE | San Francisco Bay Area
"Healthy Parks Healthy People": Monthly Nature Walks | Bay Area

Enjoy a free, monthly outdoor walk on the first Saturday of every month as part of the “Healthy Parks, Healthy People” program. First Saturday Programs are introductory walking/physical activity programs that occur on the first Saturday of each month throughout the Bay Area. Please note that ...Monthly

Bank of America’s “Museums On Us” Free Museum Weekend (2026)
Bank of America's "Museums On Us" Free Museum Weekend (2026)

Holders of Bank of America, Merrill Lynch, or U. S. Trust cardholders (credit cards and debit cards) get free admission to six Bay Area museums, two Sacramento museums and to more than 225 cultural institutions nationwide, for the first full weekend each month including the de ...Monthly

Sunday, November 8

Bank of America’s “Museums On Us” Free Museum Weekend (2026)
Bank of America's "Museums On Us" Free Museum Weekend (2026)

Holders of Bank of America, Merrill Lynch, or U. S. Trust cardholders (credit cards and debit cards) get free admission to six Bay Area museums, two Sacramento museums and to more than 225 cultural institutions nationwide, for the first full weekend each month including the de ...Monthly

“Sunday Assembly” Silicon Valley Community Gathering | Mountain View
Sunday, November 8 – 10:30 am - Ends at 12:30 pm | Cost: FREE | Masonic Lodge
"Sunday Assembly" Silicon Valley Community Gathering | Mountain View

“Live Better, Help Often, Wonder More” is the motto for Sunday Assembly Silicon Valley (SASV), an international community movement that celebrates life. The radically inclusive SASV is a secular and service nonprofit that celebrates life, welcomes all people and supports everyone fulfilling their potential. It aims ...Monthly

2026 North Taurids Meteor Shower Peaks
Sunday, November 8 – 10:00 pm - Ends at 5:00 am | Cost: FREE | San Francisco Bay Area
2026 North Taurids Meteor Shower Peaks

Every year from September to November, the Earth passes through a broad stream of debris associated with Comet Encke. The dust and debris hit Earth’s atmosphere at about 65,000 mph and burn up, creating the Taurid meteor shower. Most years the shower is weak, and ...