Temperatures average between 80 °F (27 °C) and 90 °F (32 °C) in summer, and up to 109 °F (43 °C) on the Red Sea coast. Winter temperatures average between 55 °F (13 °C) and 70 °F (21 °C). A steady wind from the northwest helps lower temperatures near the Mediterranean coast. The Khamaseen is a wind that blows from the south in spring, bringing sand and dust, and sometimes raises the temperature in the desert to more than 100 °F (38 °C).

Prior to the construction of the Aswan Dam, the Nile flooded annually (colloquially The Gift of the Nile) replenishing Egypt's soil. This gave the country consistent harvest throughout the years.

The potential rise in sea levels due to global warming could threaten Egypt's densely populated coastal strip and have grave consequences for the country's economy, agriculture and industry. Combined with growing demographic pressures, a significant rise in sea levels could turn millions of Egyptians into environmental refugees by the end of the century, according to some climate experts.