Metropolitan City of Cagliari the warmest month with an average temperature of that of about . African anticyclone activity can cause heat waves starting in June. From mid-June to mid-September rain is rare and appears in afternoon storms. The rainy season starts in September, but the first cold days come in December, usually the wettest month. Winds are frequent, especially the mistral and sirocco; in Summer days a marine sirocco breeze ("s'imbattu") lowers the temperature and the humidity. On the surrounding mountains, the climate is very different with plentiful average rainfall, cold winters, and mild warm summers (Csb in the Köppen climate classification). As
AC Sirocco nG AC Sirocco nG The AC Sirocco nG is a Dutch ultralight based upon the 1983 Aviasud Sirocco and produced by AC Light Aircraft of Voorschoten. The aircraft is supplied as a kit for amateur construction or as a complete ready-to-fly-aircraft. The Sirocco nG features a V-strut-braced high-wing, a single-seat open cockpit, fixed tricycle landing gear and a single engine in pusher configuration. The aircraft is made from composites. The nG model, which first flew in May 2009, has an all-new composite wing of shorter span, and an area of , with ailerons that replace the earlier spoilers. The fuselage is