Provided we're not all underwater at this point, here are a few choice things to do in San Francisco on this rainy day. (Reminder: Be sure to check weather warnings before heading out.)
Few places in the city are as tranquil and poignant as Grace Cathedral. Stop in for a quick prayer (it's nondenominational, so all are welcome) and then walk around the indoor labyrinth while keeping "an open heart and an open mind." It's made for meditation. Don't forget to check out the Keith Haring altarpiece, too.
The Palace Hotel's Garden Court is a nifty place to have tea or lunch, especially during the rain under the stained glass dome. (You know, the one that Michael Douglas fell through in The Game? That one.)
Stay dry on public transit
As soon as a few droplets fall from the sky, your everyday fellow passenger turns into a confused, scared mongrel. (It's not our fault; like Gremlins, we should never get wet.) Be patient and courteous with each other. Also, you won't be able to find a dry seat. It's almost mandatory that at least a half cup of water must be poured onto every seat during a rainfall. (Remember to put your umbrellas on the floor, you heathens!)
Buy a clear umbrella
Sure, you might look like a 12-year-old girl on her way to school, but your mood will be greatly improved with a clear umbrella. Hand to god, it'll forever change your views on umbrella hues. Being able to see what's going on around you will not only help you avoid bumping into passersby, but the skylight effect will cheer you up.
Hear me out. Should you find yourself in the Outer Richmond, head a few more blocks west to the historic Cliff House. The restaurant's floor-to-ceiling windows are perfect for witnessing the Pacific Ocean's wrath during tumultuous storms. [WARNING:Please proceed with caution. We do not recommend going to Ocean Bean during storms.]
The language of cinema is universal... and perfect for crummy weather
Movies were made for rainy days. Especially on the weekdays. Check out any number of films playing today.
House of Air
Bounce around on the 42 trampolines at House of Air. The indoor trampoline park, inside a former airplane hangar in the Presidio, is an excellent way to stay dry while toning your leg muscles.
Or, just stay in and sleep for the rest of the day.