...i can't speak for the riu tequila, but the riu yucatan and riu palace mexico rooms have their own A/C control which can be adjusted by the guest...when the room's patio doors are opened, the A/C shuts off automatically, not a bad idea

...we've never had a problem with A/C day or night...i will say that some nights, the ceiling fan was enough to keep us quite comfortable...i hope you find your room's A/C to be to your liking at the tequila!...