In all seasons the sun is extremely strong. In the less oppressive months, especially when there is a breeze, it may not be apparent how strong the sun really is. A high factor sun block is recommended all year round.
Hours of sunshine
Some say that it never rains in Luxor. It does rain most years, but usually just once. Even then the rain is fairly brief and it dries out again very quickly. The rainfall can be heavy but it is usually not enough to measure. The official 'average weather' charts show no measured rainfall in any month.
There is some variation in temperature through the year. July and August are the hottest and unbearable for some. English winter months, December to February, are the least oppressive and can even get chilly at night. March and November would suit most people best.
The weather now
Temperatures are measured in the shade. The actual temperature may be much higher in the sun.
The BBC 5 day weather forecast for Luxor will invariably promise sun, but other conditions will vary, such as exactly how hot it is, how windy, the humidity, whether there is cloud and how clear it is.
Updated November 2014
More about the sun
For more about the sun, and how to protect yourself, see the Sun page