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
Airbus Zephyr to monitor our adversaries for weeks on end, providing critical intelligence for our armed forces." A purchase of two Zephyr-8's was reported in February 2016. The British Ministry of Defence later confirmed the purchase of a third Zephyr 8 platform. The Zephyr 8 will have roughly 24 kg of batteries and a 5 kg payload, and be 30 percent lighter and carry 50 percent more batteries than the Zephyr 7. In August 2016, the MOD confirmed the purchase of a third Zephyr. In addition to Zephyr 8, otherwise known as Zephyr S, full-scale flight testing is scheduled for a twin-tailed