More unsettled weather is forecast for the Emirates after two days of heavy rain in Abu Dhabi and Al Ain.
The capital woke up to more light rain on Friday morning, which could continue on and off throughout the day.
The mercury is expected to hit a high of 39°C in Dubai, and 37°C in Abu Dhabi. Temperatures in Fujairah will be cooler, reaching 34°C.
The National Centre of Meteorology posted a video online of rain hammering down on the Dubai - Al Ain road on Friday.
Police in Abu Dhabi have called for motorists to take care.
Winds on the coast could reach 35kph, causing low visibility as dust and sand is swept into the air.
There's also a chance of rain on Saturday, especially eastern and southeastern areas, which could extend to the coast.
Winds reaching 40kph could cause blowing dust and sand, reducing visibility.
Sunday will be significantly cooler. There is also a chance of heavier rain as convective clouds form over the east and south, possibly stretching to the coast.
The unsettled weather will continue into the start of next week, with Tuesday evening set to be particularly humid.
Madrid Open schedule
Men's semi-finals
Novak Djokovic (1) v Dominic Thiem (5) from 6pm
Stefanos Tsitsipas (8) v Rafael Nadal (2) from 11pm
Women's final
Simona Halep (3) v Kiki Bertens (7) from 8.30pm
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If you go
The Flights
Emirates and Etihad fly direct to Johannesburg from Dubai and Abu Dhabi respectively. Economy return tickets cost from Dh2,650, including taxes.
The trip
Worldwide Motorhoming Holidays (worldwidemotorhomingholidays.co.uk) operates fly-drive motorhome holidays in eight destinations, including South Africa. Its 14-day Kruger and the Battlefields itinerary starts from Dh17,500, including campgrounds, excursions, unit hire and flights. Bobo Campers has a range of RVs for hire, including the 4-berth Discoverer 4 from Dh600 per day.
The finalists
Player of the Century, 2001-2020: Cristiano Ronaldo (Juventus), Lionel Messi (Barcelona), Mohamed Salah (Liverpool), Ronaldinho
Coach of the Century, 2001-2020: Pep Guardiola (Manchester City), Jose Mourinho (Tottenham Hotspur), Zinedine Zidane (Real Madrid), Sir Alex Ferguson
Club of the Century, 2001-2020: Al Ahly (Egypt), Bayern Munich (Germany), Barcelona (Spain), Real Madrid (Spain)
Player of the Year: Cristiano Ronaldo, Lionel Messi, Robert Lewandowski (Bayern Munich)
Club of the Year: Bayern Munich, Liverpool, Real Madrid
Coach of the Year: Gian Piero Gasperini (Atalanta), Hans-Dieter Flick (Bayern Munich), Jurgen Klopp (Liverpool)
Agent of the Century, 2001-2020: Giovanni Branchini, Jorge Mendes, Mino Raiola