Extremely hot weather
Everybody loves summer time. What people usually tend to forget is that the meaning of summer weather varies according to the part of the globe we are referring to. For instance, in Dubai between June and September the average temperature is 40 C (104 F). Imagine four months of extreme hot weather accompanied by humidity and wind, non stop. Winters are not cold either, an average of 24 C (75 F) during the day and 14 C (57 F) at night does not classify as winter season for any European.
Summer in any other continent cannot be compared to middle eastern weather. If you are preparing for visiting or if you are weighing the possibility of moving to Dubai weather should be a factor to be taken into consideration.