Fog happens a lot in San Francisco.
What causes the fog?Edit
San Francisco is often graced by a type of sea fog identified as "advection fog" which happens when moist air blows over the cool Pacific Ocean. The temperature of the air lowers to the dewpoint, causing fog generation.
The low air pressure and warm air of California's Central Valley lures the fog inland into the San Francisco Bay Area.
What can I do about it?Edit
- Wear layers
- Plan 4-5 days to see the Golden Gate Bridge, as the first several will probably be ruined by fog.