Planning for the weather is a good way to make your trip to Nejran relaxing and enjoyable, especially when you're splurging. The hottest months are usually July and June with an average temp of 88°F, while the coldest months are December and January with an average of 66°F. From January through March, the daytime average is 87°F and the nighttime average is 51°F. Between April and June, temperatures average 99°F during the day and 68°F at night. July through September averages 100°F during the day and 71°F at night. In October-December, the average temperature is 86°F during the day and 51°F at night.