You can plan your beach trip with this snapshot of the seasons in Aswan: The hottest months are usually August and July with an average temp of 93°F, while the coldest months are January and February with an average of 65°F. From January through March, the daytime average is 86°F and the nighttime average is 51°F. Between April and June, temperatures average 106°F during the day and 68°F at night. July through September averages 106°F during the day and 79°F at night. In October-December, the average temperature is 96°F during the day and 54°F at night.