December gives the UAE its shortest days — about 10 hours 20 minutes of daylight around the solstice on the 21st, against 13 hours 45 minutes in June — and its most comfortable ones. Highs sit in the middle twenties, nights fall to around 15°C, and what rain the country receives across the year begins arriving during December 2027.
Two days come out of the 31 days of December 2027 for Eid Al Etihad, unless the 2nd and 3rd fall on the weekend — in which case they are absorbed by it and nothing is returned. Commemoration Day on the 1st does not affect the count at all, since it is observed across the country rather than taken off.
December 2027 closes the Gregorian year on the 31st with the outdoor season at its height and the schools still on holiday into the first week of January. January then reopens the calendar with New Year's Day and the closing weeks of the shopping festival.