Things to Do in San Francisco This Weekend (September 18–20, 2026) - Project SF

Everything on our calendar for this weekend in San Francisco, Friday to Sunday, grouped by day. Every listing is checked against the organizer’s own page before it goes up, and nothing here is paid for. The list updates itself as the weekend changes, so bookmark this page rather than a dated one.

September 18–20, 2026 · 25 events on our calendar · 20 free. Every listing is checked against the organizer's own page before it goes up.

Friday, September 18

San Francisco Greek Food Festival

Sep 18–20 · Annunciation Greek Orthodox Cathedral

Mission DistrictFree entry

From the E: Excelsior Night Market

Fri · 4:30 pm · Ocean Ave & Mission St

San FranciscoFree

Fort Mason Night Market

Fri · 5:00 pm · Fort Mason Center for Arts & Culture

Saturday, September 19

San Francisco Greek Food Festival

Sep 18–20 · Annunciation Greek Orthodox Cathedral

Mission DistrictFree entry

Coastal Cleanup Day at Ocean Beach

Sat · 9:00 am · Ocean Beach

Richmond DistrictFree

Touch a Truck SF

Sat · 9:00 am · Stonestown (old UA Cinema lot)

San Francisco$12

Markets & Pop-ups

Secondhand Saturday at the Sunset Community Mercantile

Sat · 10:00 am · Sunset Community Mercantile

Sunset DistrictFree

City Kids Family Fair

Sat · 10:00 am · 445 Church Street

San FranciscoFree, RSVP required

Muni Heritage Weekend

Sep 19–20 · San Francisco Railway Museum

Financial DistrictFree

Access to Adventure Day

Sat · 11:00 am · Crissy Field Center, Presidio

Chinatown Autumn Moon Festival

Sep 19–20 · Grant Avenue, Chinatown

King of the Streets Lowrider Parade & Car Show

Sat · 12:00 pm · Mission Street

Mission DistrictFree

TideFest at Ocean Beach

Sat · 1:00 pm · Great Highway at Taraval Street

Sunset DistrictFree

Europe in the Park

Sat · 1:00 pm · Peacock Meadow, Golden Gate Park

Golden Gate ParkFree

Glen Park Night Market (Season Finale)

Sat · 3:00 pm · Kern Street, Glen Park

San FranciscoFree

Golden State Valkyries: Fan Appreciation Night

Sat · 6:00 pm · Chase Center

San FranciscoVaries

Observe the Moon Night

Sat · 7:00 pm · Presidio Tunnel Tops (Western Lawn)

Sunday, September 20

San Francisco Greek Food Festival

Sep 18–20 · Annunciation Greek Orthodox Cathedral

Mission DistrictFree entry

Muni Heritage Weekend

Sep 19–20 · San Francisco Railway Museum

Financial DistrictFree

Chinatown Autumn Moon Festival

Sep 19–20 · Grant Avenue, Chinatown

Markets & Pop-ups

35th Annual Fiesta on the Hill

Sun · 10:00 am · Cortland Avenue, Bernal Heights

San FranciscoFree

Markets & Pop-ups

Haight Ashbury Street Fair

Sun · 11:00 am · Haight Street

San FranciscoFree

Golden Gate Park Band: Irish Celebration

Sun · 1:00 pm · Spreckels Temple of Music (Bandshell)

Golden Gate ParkFree

Running all weekend

Exhibitions and runs that are on every day this weekend.

Treasures of the Pharaohs

Now through Jan 31 · de Young Museum

Golden Gate Park$40 adults (kids discounted)

Flower Piano

Now through Sep 20 · San Francisco Botanical Garden

Golden Gate ParkFree–$18 (free for SF residents)

Sunset Fridays at the SF Zoo

Now through Oct 9 · San Francisco Zoo & Gardens

Sunset District$14 (kids 11 & under free)

Ferry Plaza Farmers Market

Now through Dec 31 · Ferry Building Plaza

Financial DistrictFree

Heart of the City Farmers Market

Now through Dec 31 · UN Plaza, Civic Center

Hayes ValleyFree

Free Shakespeare in the Park: Antony and Cleopatra

Sep 19–27 · Sue Bierman Park

Financial DistrictFree

More: free things to do today · the full calendar · events RSS feed

Before you go

Dress for three climates. The west side can be fifteen degrees colder than the Mission on the same afternoon. See San Francisco weather and what to wear.
Take Muni. Weekend street closures are common; Muni, BART or cable car explains which to use.
With children: free things to do with kids and rainy-day ideas.
Two of you: cheap date nights.

Know about something good that is not here? Submit an event. It is free, and we check it before it goes up.