September is the month the heat begins to let go, slowly and with little visible evidence at first. Highs fall from around 40°C to the middle thirties across it, the humidity drops with them, and the difference by the last week of September 2026 is enough to notice on the walk from a car park to a door — which is the unit of measurement that matters here.
The 30 days of September 2026 lose nothing to a public holiday, so the count is set entirely by the weekends. It is one of only three months on the UAE calendar of which that is true in every year from 2026 to 2030, and it gives September one of the highest working-day totals of the twelve.
The turn from September into October is the one the whole country waits for. September 2026 hands over the last weeks in which an outdoor plan is a gamble to the month in which such plans become reasonable again, starting with the evenings and working backwards through the day.