The statement from the Prime Minister's Office emphasized the nation's commitment to "stand by Greece in combating massive wildfires."
June's heatwave may be incomparable to others - with data compared as far back as the early 1950s.
Readers of The Jerusalem Post have their say.
Heatwaves continue to become longer, more frequent and more extreme as the years progress.
Europe's highest recorded temperature of 48.8C (119.8F), registered in Sicily two years ago, could be exceeded in the coming days.
On Monday, the heat is expected to reach its peak, with temperatures projected to reach 45C (113F) at the Dead Sea.
According to sources from Sheba Medical Center, the prime minister lost consciousness while at home in Caesarea and fell as a result, hitting his head.
Most of the country will experience temperatures ranging from 91-96F (33-36C), although some locations will reach 100-109F (38-43C).
According to the meteorological service, in the coming days are expected to bring extreme heat throughout the country. How can you deal with the heat and keep healthy?
On Thursday, the European Union's Copernicus Climate Change Service said June was the hottest month ever, smashing the previous June record in 2019 by a substantial margin.