SF Bay Area Earth Day 2026 Events
Earth Day 2026 events across the Bay Area. Free festivals, cleanups & family fun all April.
Earth Day isn't just one day in the Bay Area — it's the entire month of April, and the Bay goes all out. From free festivals at Yerba Buena Gardens in San Francisco to creek cleanups, nature hikes in, volunteer days , and family celebrations, there's something happening in nearly every corner of the Bay Area. Whether you're looking for a low-key afternoon with the kids or want to actually roll up your sleeves and give back, this list has you covered. I've rounded up a few events across all regions so you can find what's closest to you, and maybe even make a whole day of it.
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SAN FRANCISCO
1. Earth Day Festival & Green Business Expo
April 18, 12–3pm | Yerba Buena Gardens | Free (RSVP)
https://www.sfenvironment.org/events/2026-earth-day-festival-green-business-expo
2. SF Botanical Garden Earth Day Celebration
April 19, 11am–3pm | Golden Gate Park | Free w/ admission
https://gggp.org/event/earth-day-celebration/
3. Bernal Heights Earth Day Stroll
April 19, 11am–3pm | Cortland Ave & Bernal Hill | Free
https://sfrecpark.org/1778/Earth-Month-Events
4. Alemany Farm Earth Day on the Green
April 26, 11am–3pm | 700 Alemany Blvd | Free
https://sfrecpark.org/1778/Earth-Month-Events
5. EcoCenter 15th Anniversary Earth Month Block Party
April 26, 10am–1pm | 32 Jennings St | Free
https://sfrecpark.org/1778/Earth-Month-Events
SOUTH BAY / PENINSULA
6. Sunnyvale Earth Day Festival
April 11, 11am–2pm | Sunnyvale Civic Center, 456 W. Olive Ave | Free
https://sunnyvaleclimateaction.org/
7. Palo Alto Earth Day Festival
April 19, 1–4pm | Palo Alto Art Center | Free
https://www.paloalto.gov/Events-Directory/City-Manager/Earth-Day-Festival-2026
8. Mountain View Earth Day Festival
April 18
9. Santana Row Earth Day Celebration
April 19
https://santanarow.com/event/earth-day-celebration-in-partnership-with-open-space-authority/
10. Menlo Park Love Our Earth Festival
April 25
https://www.menlopark.gov/Citywide-calendar/Sustainability-events/20260425-Love-Our-Earth
EAST BAY
11. Golden Gate NRA Spring Days of Service
April 18–26 | Multiple GGNRA locations | Free (pre-registration required)
https://www.parksconservancy.org/volunteer/earth-day-and-spring-days-service-2026
12. Oakland Earth Day
April 18 | Various locations
https://www.oaklandca.gov/Community/Events-Culture/Events/Oakland-Earth-Day
13. Berkeley Earth Day Shoreline Cleanup
April 18, 9–11am | Shorebird Park Nature Center
https://calrecycle.ca.gov/earthday/events/
15. Martinez John Muir Birthday–Earth Day
April 18, 10am–4pm | John Muir National Historic Site | Free
https://calrecycle.ca.gov/earthday/events/
16. Fremont Earth Day Fair
April 18
https://www.fremont.gov/government/departments/environmental-services/events/earth-day
17. Hayward Citywide Cleanup & Community Fair
April 25
https://www.hayward-ca.gov/discover/events/annual-citywide-clean-community-fair-apr-25-2026
18. East Bay Regional Parks District-wide Volunteer Events
April 25 | Multiple park locations
https://www.ebparks.org/we-celebrate/earth-day
** KNOW OF AN AWESOME EARTH DAY CELEBRATION WE MISSED? ADD IT HERE.
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