The Egyptian Meteorological Authority (EMA) predicts hot weather will prevail in most of the country during Wednesday's daylight hours.
Moderately warm weather is also expected to hit the North Coast and South Upper Egypt to experience extremely hot conditions.
Winds will occur occasionally across the country.
There will also be a disruption of maritime navigation in the Red Sea and Gulf of Suez with wind speed reaching 50 to 70 km/hr and wave height ranging from 2.5 to 3.5 meters.
The Mediterranean Sea will experience turbulent waves, ranging between 2.5 and 3 meters in height, with northwest surface winds.
Moderate weather is also expected to prevail in Egypt at nighttime.
The predicted temperatures for the following cities are 31°C in Cairo, 25°C in Alexandria, 22°C in Marsa Matruh, 36°C in Sohag, 39°C in Qena, and 40°C in Aswan.