Forecasters issued a red alert early on Thursday morning to warn of thick fog across most of the country.
The National Centre of Meteorology said the fog would reduce visibility to less than a kilometre and would last until 11am.
Most of Abu Dhabi emirate, eastern Dubai and central Sharjah were expected to experience the fog.
Once this cleared, a fair and partly cloudy day was forecast with an expected rise in temperature over the eastern and northern areas of the country.
Highs of 28°C are expected along the coast with 31°C inland and 21°C in the mountains. Minimum temperatures will drop to 13°C along coastal areas, 9°C inland and 6°C in the mountains.
The temperature increase is expected to continue over the next five days with a chance of rain over the sea and westward islands.
Wind speeds will peak at 30kph and the Sea of Oman and Arabian Gulf will be pleasant for anyone planning a weekend by the beach.
The fog will return by Friday morning but, once this passes, residents and Emiratis can expect a generally warm day with cooling winds.
Saturday may be dusty and partly cloudy, becoming more overcast as the day passes.
Winds will pick up slightly and the Sea of Oman and Arabian Gulf will get a little choppy.