<P> Together with Beverly Hills and Holmby Hills, Bel Air forms the Platinum Triangle of Los Angeles neighborhoods . </P> <P> Bel Air is situated about 12 miles (19 km) west of Downtown Los Angeles and includes some of the foothills of the Santa Monica Mountains . It lies across Sunset Boulevard from the northern edge of the main campus of the University of California, Los Angeles . At the heart of the community sits the Bel - Air Country Club and the Hotel Bel - Air . </P> <P> Along with Beverly Hills and the Los Angeles community of Brentwood, it is one of the "Three Bs", a wealthy area in the Los Angeles Westside . </P> <P> This region experiences warm and dry summers, with no average monthly temperatures above 71.6 ° F (22.0 ° C). According to the Köppen Climate Classification system, Bel Air has a warm - summer Mediterranean climate, abbreviated "Csb" on climate maps . </P>

Where did the name bel air come from