Jordan is at its best from late March to April, when wildflowers coat the countryside in color. Between June and August, daytime temperatures sizzle, making sightseeing tough going. Late September and October herald blue skies aplenty and pleasant temperatures. During December and January, much of Jordan gets bitterly cold, particularly at night. On the plus side, traveling during winter offers the chance, if you’re lucky, to see Petra’s monuments dusted with snow.