UAE: What will the weather be like in April? NCM explains Wam The NCM explained that the effect of Siberian high pressure will weaken while monsoon depressions will affect the region. The weather authority predicts rapid changes in weather throughout the month. The UAE’s National Centre of Meteorology predicts rapid changes in weather conditions throughout the month of April, with temperatures increasing gradually as the country passes through the spring period. A climate summary report for April which was issued on Thursday by the National Center of Meteorology (NCM) read: “The apparent movement of the sun will continue to move north towards the Cancer orbit, where daytime gradually increases in the northern hemisphere and air temperature increases gradually over most parts of the country.”