Abu Dhabi is forecast to see 43°C and Dubai will top out at 41°C.
Temperatures across the UAE will reach the mid-40s on Sunday.
In Abu Dhabi the maximum is forecast to hit 43°C and Dubai will top out at 41°C.
Along the coast and islands the maximum is likely to be 43°C with 80 per cent humidity, and the mountains are expected to hit 37°C with 60 per cent humidity.
The interior is expected to reach 45°C with up to 75 per cent humidity.