Djibouti's climate is significantly warmer and has significantly less seasonal variation than the world average. The mean daily maximum temperatures range from 32 to 41 °C (90 to 106 °F), except at high elevations. In Djibouti City, for instance, average afternoon highs range from 28 to 34 °C (82 to 93 °F) in April. But at Airolaf, which ranges from 1,535 to 1,600 m (5,036 to 5,249 ft), maximum temperature is 30 °C (86 °F) in summer and minimum 9 °C (48 °F) in winter. In the uplands ranges from 500 to 800 m (1,640 to 2,624 ft), are comparable and cooler to those on the coast in the hottest months of June until August. December and January is the coolest month with averages low temperatures falling as low as 15 °C (59 °F). Djibouti has either a hot semi-arid climate (BSh) or a hot desert climate (BWh), although temperatures are much moderated at the highest elevations.