In the lowlands near the coast, summer heat is reduced by cool onshore breezes. Average daily summer temperatures in the coastal cities range from 64 to 82 °F (18 to 28 °C). In the interior, however, daily highs frequently exceed 95 °F (35 °C). In late spring or summer, the sharqī (chergui)—a hot, dusty wind from the Sahara—can sweep over the mountains into the lowlands, even penetrating the coastal cities. Temperatures rise dramatically, often reaching 105 °F (41 °C). If crops have not been harvested, damage can be extensive from the desiccating effects of the sharqī. In winter the marine influence again moderates temperatures in the coastal regions. Average daily winter temperatures range from 46 to 63 °F (8 to 17 °C). Away from the coast, temperatures drop significantly, occasionally dipping below the freezing point.