Summer in Dubai tests every apartment — and every electricity bill. When temperatures outside climb well into the forties, your air conditioning works almost around the clock, and cooling becomes the largest part of your home energy use. The good news is that most flats have room for improvement. A few setting changes, basic maintenance, and smarter habits can keep your home comfortable without your DEWA bill climbing quite so high.
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Why Cooling Dominates Your Bill
In a typical Dubai apartment, air conditioning is by far the biggest load in the hotter months. That is why bills rise so sharply from around May onwards, even if nothing else changes. Every degree lower on the thermostat makes the system work harder for longer, and a unit straining to cool a sun-baked, poorly sealed room will run almost continuously. Small improvements to how you cool — and how well your flat keeps cool air in — matter far more than unplugging the odd phone charger.
Start With the Thermostat
DEWA commonly advises setting the thermostat to around 24 degrees Celsius as a balance between comfort and efficiency, and it is a sensible starting point for most homes. If you have been living at 20 or 21 degrees, you may be surprised how quickly you adapt to a slightly warmer setting — especially if you adjust in stages over a few days rather than all at once.
A few thermostat habits help:
- Set one steady temperature instead of repeatedly turning the AC down when you feel warm and up when you feel cold
- When you go out for a few hours, raise the setting a little rather than switching the system off completely, so it does not have to work at full power to cool a heated flat later
- Use the timer or schedule functions if your thermostat has them, so the flat is cool when you wake up or return from work
- Close doors to unused rooms if your system allows them to be cooled less
Health needs come first, particularly for young children, older family members, and pets. The aim is simply to avoid paying to over-cool rooms beyond what anyone needs.
Keep Heat Out and Cool Air In
The cheapest cooling is the heat that never gets inside. Blackout curtains or good blinds on sun-facing windows make a noticeable difference, particularly on west-facing glass. Keep them closed during the hottest part of the day in rooms you are not using, and open them in the evening.
Sealing gaps matters too. Check around your front door, balcony doors, and windows for draughts of hot air — in Dubai, a leak lets heat in rather than out. Simple draught excluders and door seals can reduce that inflow of warm air. If you rent and find a damaged seal or a window that will not shut properly, report it to your landlord or building maintenance; fixing it is usually straightforward.
Use Fans to Feel Cooler
A ceiling or standing fan does not lower the room temperature, but moving air makes you feel cooler, so the thermostat can sit a degree or so higher without you noticing. Fans use far less electricity than air conditioning, so running one in the room you are in — and switching it off when you leave — is an easy win. At night, a fan can make a 24-degree setting feel perfectly comfortable for sleeping.
Service the AC and Know Who Bills Your Cooling
A poorly maintained unit cools badly and costs more to run. Filters clogged with dust restrict airflow, so clean or replace them regularly. An annual professional service — checking refrigerant, coils, drainage, and fans — is money well spent, and in many rental contracts servicing is the tenant’s responsibility, so check your agreement. If a room never gets cool or a vent blows warm air, report it early rather than compensating by lowering the thermostat.
Finally, know how your building charges for cooling. In some apartments, chilled water for the AC is billed separately by a district cooling or chiller provider, while DEWA covers your other electricity and water. In others, everything runs through DEWA. The distinction matters when you compare bills or move home: a flat that looks cheap on rent can carry a separate chiller charge. Whatever your setup, shifting heavy appliance use — laundry, dishwashing, ironing — to cooler or off-peak times where practical, and applying the habits above, will keep summer far more manageable.
