Some other rough percentages:

San Francisco Bay Area: 75 percent

Central Coast: 70 percent

Los Angeles: 62 percent

San Diego: 58 percent

I didn’t get eclipse glasses. What now?

No matter how tempting, it’s a terrible idea to look at the sun without proper protection. Doctors say retinas can be scarred within seconds.

You’ll probably find that vendors, including Best Buy and 7-11, have been cleaned out of their eclipse glasses.

But there are other ways to behold the event.

Stand under a tree, and the gaps between leaves will act like pinhole cameras, casting the sunlight in the shape of crescents. You can create the same effect with your hands or by poking a hole in cardboard.

What about the weather?

Sadly, clouds are expected Monday morning in San Diego and San Francisco.

Anna Schneider, a National Weather Service meteorologist in Monterey, said the best bet for people in that situation would be to get to a higher elevation or go inland.

Dr. Nordgren, the astronomer, raised another tantalizing possibility. The fog could be just the right thickness that the sun becomes visible with the naked eye (with caution of course).

“So there’s a chance that you could actually physically see the crescent in the sky,” he said.

It’s just a partial eclipse. Do I really need to see it?