We love your kids but our wedding is an adult swim. We appreciate you making arrangements so that you can celebrate with us.
Short answer, no. San Francisco is easiest to navigate by foot, public transportation and ride share. Parking is limited at all events throughout the weekend. If you are arriving by car, make a longterm parking plan. The SpotHero app makes it easy to search for rates and reserve spots at garages in the neighborhood where you're staying. If you do plan to bring a car, be sure to remove all items from view everywhere you park.
All Bay Area transit systems including Muni, BART and CalTrain use Clipper Cards for fare payments. Use the Public Transportation option in your preferred maps App (ie: Google Maps) to browse your options in real-time. You can purchase on your phone, online and in person. https://www.clippercard.com/ClipperWeb/get.html
In Mid-August, San Francisco can fluctuate from the low 50's to the high 70's. Most of our wedding events will be held outside near the bay, so bring layers! No matter what time of year, you always need a jacket in SF.