Temperatures across the UAE will reach the mid-40s on Saturday.
In Dubai the temperature should hit 41°C and in Abu Dhabi, the maximum is forecast should reach 43°C.
Along the coast and islands the maximum is likely to be 42°C with 90 per cent humidity, and the mountains are expected to hit 37°C with 70 per cent humidity.
The interior is expected to reach 45°C with up to 85 per cent humidity.
The National Centre of Meteorology said Saturday would be fair to partly cloudy and hazy at times, with a chance of some rainy convective clouds forming Eastward by afternoon.
There will be light to moderate winds, freshening at times with the clouds causing blowing dust and sand.
The night-time humidity will extend into Sunday morning over some coastal and internal areas. The sea will be slight in the Arabian Gulf and the Oman Sea.