Temperatures inland could reach 42°C but the rest of the country is unlikely to break into the 40s.
Temperatures in coast areas could hit 38°C while the mountains will top out at 33°C.
In Dubai, the temperature will reach 37°C and Abu Dhabi will be a touch warmer at 38°C.
Humidity along the coast is forecast to reach 90 per cent while the interior could be at 85 per cent.
The National Centre of Meteorology said Saturday would be fair to partly cloudy over scattered areas with a chance of convective clouds formation by the afternoon.
Temperatures will tend to decrease with light to moderate winds that are freshening at times.
The sea will be rough becoming moderate gradually in the Arabian Gulf and slight to moderate in the Oman Sea.
