Editing Golden Gate (section)

== Climate ==
[[File:Golden Gate with fog.jpg|thumb|Fog rolls into [[San Francisco Bay]] through the Golden Gate, almost obscuring [[Alcatraz Island]]]]
[[File:Satellite view of fog over the Golden Gate.jpg|thumb|Fog obscures the Golden Gate as it spills into San Francisco Bay in this satellite image]]

The Golden Gate is often shrouded in [[San Francisco fog|coastal fog]], especially during the summer. Heat generated in the [[California Central Valley]] causes air there to rise, creating a low pressure area that pulls in cool, moist air from over the Pacific Ocean. The Golden Gate forms the largest break in the hills of the [[California Coast Ranges|California Coast Range]], allowing a persistent, dense stream of fog to enter the bay there.<ref name="Steele1888">{{cite book|author=James William Steele|title=Rand, McNally & Co.'s New Overland Guide to the Pacific Coast: California, Arizona, New Mexico, Colorado, and Kansas|url=https://archive.org/details/bub_gb_i2koAAAAYAAJ|year=1888|publisher=Rand, McNally|page=[https://archive.org/details/bub_gb_i2koAAAAYAAJ/page/n182 175]}}</ref> Although there is no weather station on Golden Gate proper, the area has a [[mediterranean climate]] ([[Köppen climate classification|Köppen]] ''Csb'') with very narrow temperature fluctuations, cool summers and mild winters. For the nearest weather station see the weatherbox of [[San Francisco#Climate|San Francisco]]. The Golden Gate Bridge being nearer the ocean and at elevation indicate it being cooler during summer days. Nearer the San Francisco urban core, the temperatures resemble the official [[NOAA]] weather station instead.