Opening windows at night was a common practice in the past when air conditioners and fans were not widely available or affordable. There are several reasons why people would open their windows during nighttime:
Ventilation: Opening windows allowed for natural airflow and ventilation. In the absence of mechanical cooling devices, it was essential to maximize natural ventilation to bring in fresh air and expel hot air and odors from the interior spaces. This was particularly important during warm nights when the air outside might have been cooler than the indoor temperature.
Cool Night Air: Many regions experience a drop in temperature at night, especially in areas with lower humidity. Opening windows allowed people to take advantage of this cooler air, creating a natural breeze that helped to cool down the indoor environment.
Natural Cooling: By opening windows strategically, people could create cross-ventilation by allowing air to flow from one side of the house to the other. This technique enhanced the cooling effect as the air passing through carried away heat and helped maintain a more comfortable temperature indoors.
Indoor Air Quality: Opening windows at night was an effective way to improve indoor air quality. It allowed for the removal of stale air, moisture, and indoor pollutants such as smoke, dust, and cooking odors. Fresh air from outside helped to create a healthier living environment.
Connection with Nature: Opening windows provided a sense of connection with the outside world, allowing people to enjoy the sounds and smells of nature. It offered a way to bring a bit of the outdoors inside and create a more pleasant living environment.
It's important to note that the specific practices and preferences regarding window opening may have varied depending on cultural norms, climate, and individual preferences. Opening windows at night was a practical and natural way to manage indoor temperature and air quality before the widespread availability of modern cooling technologies.