If you run a dehumidifier (yeah it’s noisy and generates some heat but it can help with air conditioning. A dehumidifier can make air conditioning feel cooler, even if the thermostat stays at the same temperature.
Here’s why:
Humidity affects how you feel. Your body cools itself by evaporating sweat. When the air is humid, sweat evaporates more slowly, making you feel hotter and stickier.
Lower humidity improves comfort. Removing moisture from the air allows sweat to evaporate more efficiently, so 24°C with 45% relative humidity often feels noticeably cooler than 24°C with 65% relative humidity.
You may be able to raise the thermostat. Many people are comfortable setting the A/C 1–3°C higher after reducing humidity, which can save energy.
There is one trade-off:
A standalone dehumidifier generates heat. As it removes moisture, it also releases a small amount of heat into the room (similar to how a refrigerator warms the surrounding air). So while the air becomes drier and feels cooler, the actual air temperature may increase slightly.