Join more than 15,000 members in Imperial and San Diego Counties.


Join the Solar RevolutionLearn More

Help Support the San Diego Chapter

It’s never a bad time to donate your car/boat/motorcycle and you may qualify for a 2018 tax deduction!.

Select the San Diego Chapter when you donate.

2018 General Election – November 6

Find our Endorsements Results Here

Fight Plastic Litter: Tell the City Of San Diego to Ban Foam Food Containers and More

Tell Mayor Kevin Faulconer and the San Diego City Council that you want a comprehensive ordinance banning the consumption of expanded polystyrene (EPS; e.g.,“Styrofoam®”) food containers, and other …. Read More

Looking to get active?  Want to help protect our natural world and communities?

Let us help you find your perfect volunteer opportunity.  Just fill out our volunteer form HERE and one of our Coordinators of Volunteers will get right back to you and get you going!


12th Annual Whale Watch Trip

Whale Watching in San Diego

Sunday, January 20, 2019  9:00 AM – 1:00 PM

Adult $55.00      Child (6-13yrs) $30.00

It is the height of the gray whale migration along our coast and this is your opportunity to join with fellow Sierra Club members and friends as we venture out to locate and see whales from afar and up close. Past trips have seen as many as 15 whales. You will also get to see other sea life such as sea lions, harbor seals, dolphins and some seabirds.

More information here.

Visit the Full Activities Calendar

Visit the Full Hiking and Biking Calendar

Get Involved: Join SANDAC

SANDAC (San Diego Activist Citizens) is a group of Sierra Club Volunteers who are looking to prioritze public transportation in the 2019 edition of the Regional Transportation Plan.
Are you interested in volunteering your time to be a part of this program?

Be part of the movement.

Learn More


Make a Year-End Gift for the Earth

As you think about your end of year gifts, please consider a tax-deductible gift to Sierra Club San Diego.

Our goal for 2019 is to have the biggest impact we can for the environment and our programs. Our staff and volunteers strengthen our ability to be the voice for citizens who support a clean and healthy environment.

A tax-deductible conservation investment will enable us to continue to monitor environmental issues, ensure compliance with local, state and federal environmental laws and provide decision makers with information critical to maintaining a healthy environment.

2019 Calendars Are Here!

Desk Calendar
Regular Price $15.95
Member Price $14.35
Order HERE

Wilderness Wall Calendar

Visit the Sierra Club Store for great prices on backpacks, bags, caps, water bottles, travel mugs, coloring books and other great items.

Holiday Gift Guide


Looking for that special gift? Check out the Chapter’s online store where you can find all sorts of great items for everyone in the family show your support for the Sierra Club at the same time.

Join Sierra Club San Diego on an outing – where do you want to go? The choice is yours!