Despite its scorching daytime temperatures, the Sahara Desert can experience significant cooling at night. During winter months, nighttime temperatures can drop dramatically, often reaching below-freezing in some areas. In the summer, while still warm, nighttime temperatures are relatively cooler compared to the daytime highs. This temperature fluctuation is due to the desert's low humidity levels, which result in rapid heat loss after sunset. As a result, visitors to the Sahara Desert are advised to be prepared for drastic temperature changes and to bring appropriate clothing and gear for both hot days and chilly nights.