it kinda gets pretty cold. As DaRuDe said, 8 to 10 degrees. This may sound high, but when it rains or there is a wind, it feels much colder.

I will second DaRuDe, last year, there was a shortage of room heaters in Qatar, people were even willing to pay a premium for a small one.

Better to be prepared than spend sleepless night shivering with the cold. Granted the cold snap does not last long, but who would want to give up their sleep.

Days are pretty warm. Last year, I think, it was about a day or three that was very cold during the day and that was due to heavy rains.