In most places, riding season is a loose idea. In the UAE, it's a specific window, and ignoring it doesn't just mean a less comfortable ride, it changes the actual risk of the ride itself.
The window that matters
October through April is the stretch most riders in the UAE actually use, with daytime temperatures generally running between 10°C and 25°C depending on the month and elevation, dropping cooler still at night in December and January. Outside that window, especially July through September, midday heat and hot asphalt make long rides genuinely risky rather than just uncomfortable. Dehydration sets in faster than most riders expect, and tire grip changes on asphalt that's been baking since sunrise.
If you're riding through the hotter months, the practical move is early morning starts and shorter distances, not pushing through the heat of the day on willpower alone.
Jebel Jais
The UAE's highest peak, at 1,934 meters, and consistently around 10°C cooler than Dubai or Abu Dhabi even in summer, which makes it one of the few genuinely rideable options outside the main season if you go early in the day. The road up is well maintained but winding throughout, so it rewards a rider who already knows their bike well rather than a first proper ride.
Jebel Hafeet
A different kind of climb near Al Ain, long and steady rather than tight and technical, with sweeping turns that make it more of an endurance ride than a mountain road. Together with Jebel Jais, it's one of the two most logged climbs on Limitless Miles, and for good reason.
Plan routes and track your climbs on both roads in Live Maps, built around exactly these kinds of rides.