Egypt's Red Sea cities Hurghada and Safaga suffered a power cut late on Monday due that lasted for an hour, Al-Ahram Arabic news website reported.
Head of the electricity authority in the Red Sea governorate Mohamed Shukri said that the outage was due to an "electrical power disconnection".
On Saturday some Red Sea cities were hit by heavy rains, causing the closure of three main roads.
The hilly area between the Red Sea governorate and the Upper Egyptian governorate of Qena is known for its heavy rainfall at this time of year.
In 2014, Egyptian cities were hit by major power outages during the summer. Such scenes have not occurred this summer.