Aswan in February

October through March offers the only bearable weather – daytime temperatures hover around 25-30°C with cool nights perfect for felucca rides. December and January are peak season when European tour groups descend, so book accommodations early and expect higher prices. April gets uncomfortably hot, and by May you're looking at 40°C+ days that make temple exploring a sweaty ordeal. Summer is brutal – July temperatures can hit 50°C and the desert wind feels like a hair dryer. But here's the thing about shoulder season in March and November: fewer crowds, decent weather, and hotels desperate enough to negotiate rates. The flooding season from July to October historically brought life to the Nile valley, but the High Dam controls that now. Winter nights can actually get chilly, so pack layers if you're visiting December through February.