Will I be cold?
Will I be cold in Dubai in September?
Verdict
No — No, comfortable.
Lows stay near 86°F — you won't be reaching for the puffer.
Day vs. night
Day
105°F
Sweltering
Plan indoor hours around the peak of the day.
Night
86°F
Hot
Warm enough that outdoor dinners are the daily plan.
Why
Dubai in September averages highs of 105°F, lows of 86°F, 0 rainy days.
You can pack for the daytime temps and not worry about the evening dip.