Winter, from December to March, is a very mild and spring-like season. Sometimes, the Santa Ana winds can spread fires. San Fernando Valley (see San Fernando, Van Nuys, Burbank, Glendale), north-west of the city, being closed between the hills, is even hotter, so much so that the highest records are about 46/47 ☌ (115/117 ☏). The highest recorded temperature was measured on September 27, 2010, with 44.5 ☌ (112 ☏) in the city center and 40.5 ☌ (104.5 ☏) at the airport, which is located on the coast. Heat waves due to this wind occur more often in September, followed by August, July and October. When it blows, the temperature can go above 25 ☌ (77 ☏), and sometimes up to 30 ☌ (86 ☏), in the middle of winter, while it can go above 35 ☌ (95 ☏), and sometimes up to 40 ☌ (104 ☏), from from April to October.

This wind is more likely to occur in autumn and winter, but it can blow all year round. In addition to the possible waves of bad weather, which occur mainly from December to March, a nuisance in the climate of Los Angeles is represented by the Santa Ana, a hot, dry wind from the northeast, which blows for a few days from the deserts of California and Arizona, after passing over the mountains, from which it descends. The city is quite polluted, and pollutants can accumulate in the air especially in the dry season, from May to October. There are, however, different microclimates depending on area, since the city covers a wide surface, it is situated on the coast, but it's also surrounded by hills and mountains. The city has therefore a really pleasant climate, also because it is kissed by the sun most of the year. In fact, the city is located at a lower latitude than the Mediterranean coasts, so it has milder winters on the other hand, it is located on the Pacific coast, along which a cool current flows (ie the California Current) therefore, summer is a bit cooler than in the Mediterranean Sea.

It is similar to the Mediterranean climate but it's even milder. The climate of Los Angeles is subtropical, characterized by very mild, relatively rainy winters and hot, sunny summers. Climate chart - Los Angeles (California) Index

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