Update Monday morning (May 9): Bay Area clouded out.
Sites to watch the transit online
Viewing sites that will have telescopes with quality solar filters:
Auburn - U Skies Astronomy - Local astronomers will be safely showing the transit of Mercury across the sun through their telescopes, which are designed to show the sun, in Auburn, at the American Canyon Overlook, also known as the Auburn Skateboard Park, on Pacific Street, from 6:00 AM until 11:42 AM. The viewing is free. If it rains or is very cloudy the event is canceled. To get to the Overlook, go to downtown Auburn, to the historic Courthouse. One of the roads branching from there is Auburn-Folsom Rd. Take that to the third stoplight (about 1 mile). This is Pacific Ave. Turn left at this stoplight and go about 0.6 miles to the American River Overlook, which is on your right. We set up at the far end of the parking lot. You can find information about all of our astronomy activities and our 2016 star party schedule at: http://donmachholz.com. Like us on Facebook at https://www.facebook.com/uskiesastronomy. Follow us on Twitter at https://twitter.com/uskiesastronomy
Hercules - The Hercules Stargazers will hold a Mercury Transit viewing on Monday, May 9, from 9:30 a.m. to 11:45 a.m. at Foxboro Park, 1025 Canterbury Drive, Hercules. We will meet in the basketball courts behind the building. We have an excellent view to the east and usually clear skies. We will be set up by 9:15 or earlier, and welcome new visitors with solar-filtered scopes, as well as the general public. Take I-80 E to Exit #24 Rodeo, go left at the light, turn right at the next 4-way stop (Canterbury), drive up the hill past the next stop, and the park is a half block more on the left. Park anywhere on the street. Wheelchair accessible. Info: 510-526-5974, or email Dave at email@example.com
Los Altos Hills - Peninsula Astronomical Society (PAS; http://www.pastro.org) will be observing Foothill College Observatory, 12345 El Monte Road, Los Altos Hills, from 8AM until 11:45AM for the transit of Mercury. Maps of the campus can be found at: http://www.foothill.edu/news/maps.php. The Observatory is in the 4000 building (round complex near top of campus map). Maps to the Observatory are also on the Peninsula Astronomical Society (PAS) website - http://www.pastro.org/dnn/Observatory/BigMap.aspx.There will be a Coronado H-alpha telescope, a white-light solar telescope, and several other telescopes. Cloudy or poor weather conditions will cancel this event. Try checking our webcam out on transit morning to see if we are open at: http://www.pastro.org/dnn/Observatory/FoothillWebcam.aspx This event is FREE to the public. Park in Lot 4. A $3 Parking Permit Fee is required by Foothill College available at machines in the parking lots. See also Bay Area Science Festival entry
Oakland - Chabot Space and Science Center, 10000 Skyline Blvd, Oakland, CA 946190; 7:30 AM - 11:30 AM Transit of Mercury viewing. Join us at the Chabot Observatory Deck to view this rare occurrence from our telescope, Leah. Our staff astronomers will be here to guide this exciting experience as we watch the transit all the way to its conclusion. Weather permitting. Website: https://14884.blackbaudhosting.com/14884/Transit-of-Mercury Cost: $5
San Francisco - California Academy of Sciences: A couple of our docents who usually do sunspot-watching have expressed a strong interest in observing the transit from the museum roof, weather-permitting, from opening time (9:30am) to last contact at about 11:45am.
San Jose - San Jose Astronomical Association (SJAA) has an event planned at our basecamp, Houge Park in SJ.
All the details are in the Meetup: http://www.meetup.com/SJ-Astronomy/events/229823946/ also Bay Area Science Festival entry
San Mateo - College of San Mateo (CSM) 1700 W Hillsdale Rd, has two observing sites:
Go here to watch live on-line: