Planning for the weather is a good way to make your trip to Cairo relaxing and enjoyable, especially when you’re splurging. The hottest months are usually July and August with an average temp of 86°F, while the coldest months are January and February with an average of 61°F. From January through March, the daytime average is 77°F and the nighttime average is 50°F. Between April and June, temperatures average 98°F during the day and 60°F at night. July through September averages 101°F during the day and 73°F at night. In October-December, the average temperature is 89°F during the day and 53°F at night.