January in Umm al-Quwain is the rainiest and the coldest month of the year. In January, the weather in Umm al-Quwain is typically warm. Average daily high temperature in January is about 21 degrees above zero. On average, Umm al-Quwain has 23 sunny, 4 partly cloudy, 3 rainy, and 1 cloudy day in January. The rains are usually moderate. January as well as February, March, April, and November is considered the most comfortable time to visit Umm al-Quwain.