DIY

How to Lower Up to 7°C Indoors Without Air Conditioning: 9 Natural Cooling Tricks

Summers are getting hotter, and not everyone has air conditioning at home. The good news? You can lower your indoor temperature by up to 7°C using simple, natural, and cost-effective tricks. Here’s a practical guide to help you stay cool and comfortable during the heatwave.

1. Close shutters and curtains early

Before 9 a.m., shut your blinds and curtains to block the sun’s heat from entering. This helps maintain a cooler indoor temperature.

Experts recommend doing this between 6 and 7 a.m. to prevent early morning heat buildup.
Use blackout curtains or thick fabrics to increase insulation.
Don’t forget east-facing windows that get sunlight early.

2. Ventilate during the coolest hours

Open windows early in the morning and late at night when the outside air is cooler.

Create cross ventilation by opening windows on opposite sides of the house.
If you live in an apartment, slightly open the entrance door to encourage airflow.
This helps flush out heat trapped inside your walls and furniture.

3. Hang a damp sheet in front of a window

Drape a wet cloth or sheet in front of an open window. The evaporation cools the incoming air naturally.

For better results, place a fan behind the sheet to blow fresh, humid air inside.

4. Moisten curtains or hang wet towels

Spray your curtains with water or hang wet towels indoors to cool the air through evaporation.

This DIY technique is budget-friendly and effective when used with airflow.

5. Switch off unused electrical devices

Devices like TVs, computers, and lamps emit heat while on. Unplug anything you don’t need.

Reducing electricity use also cuts down on indoor heat buildup.

6. Decorate with houseplants

Plants like aloe vera, peace lily, and areca palm release moisture and cool the air naturally.

They also improve indoor air quality and filter sunlight when placed near windows.

7. Use temporary insulation

For sun-exposed homes, temporary insulation can block a lot of heat.

Try reflective films, foil blankets, or thick cardboard on windows facing south.
These solutions can block up to 90% of external heat.

8. Spray water into the air or on skin

Use a mister or spray bottle to cool down your skin or lightly humidify the room.

Works best with airflow or fans for a refreshing effect.

9. Cool your body directly

Keep yourself comfortable during a heatwave with these body-focused tips:

Rinse your wrists, neck, and ankles with cool water.
Use a wet towel on your forehead or take a lukewarm shower or foot bath.
Drink water regularly to stay hydrated and cool from within.

By combining these smart and natural techniques, you can make your living space significantly cooler without turning on the air conditioning. Save energy, stay safe, and enjoy a fresher summer at home!