You can plan your beach trip with this snapshot of year-round temperatures in Luxor: The hottest months are usually August and July with an average temp of 91°F, while the coldest months are January and December with an average of 64°F. From January through March, the daytime average is 85°F and the nighttime average is 49°F. Between April and June, temperatures average 105°F during the day and 66°F at night. July through September averages 106°F during the day and 75°F at night. In October-December, the average temperature is 95°F during the day and 52°F at night.