Weather is changing every day. The temperature is rising. Heat alert has been issued across the country. In most countries of the world, including Southeast Asia, severe weather is declared when the temperature rises above 40 degrees Celsius. When the temperature exceeds 32 degrees Celsius and the humidity exceeds 30 degrees Celsius, it is declared hazardous weather.

According to meteorologists, the average temperature of Bangladesh in April is 33 degrees Celsius. But it stays between 35 and 37 degrees Celsius for a week.

On Saturday (April 20), the highest temperature in the country was 42.6 degrees Celsius in Jessore. And the temperature in Dhaka has crossed 40 degrees Celsius. The average temperature across the country was above 36 degrees Celsius.

Meteorologist today. Omar Farooq said that the temperature may decrease slightly on April 24 to 25. However, the temperature will rise again on April 27 and 28. Heat wave may continue across the country during the first week of May. And there may be danger of extreme heat and humidity till July-August.

In this regard, researcher and professor of University Technology Malaysia Shamsuddin Shahid told the media that people's suffering and danger cannot be understood only by the intensity of temperature during summer in Bangladesh. A heat wave, i.e. temperature not exceeding 36 degrees Celsius, can create dangerous weather anywhere. If the temperature is between 30 and 35 degrees Celsius and the humidity is above 40 percent and there is little air flow, there can be danger of overheating. The danger of extreme heat is being created in Bangladesh throughout the month of April.

The Meteorological Department published a research report titled 'Bangladesh Climate Change Impact' last February. It said April temperatures have risen rapidly to dangerous levels in the past 60 years. More than half of the country is experiencing heatwave for most of this month. In other years, this time is accompanied by several gales, gales, and rains for several days. It reduces the temperature to some extent. This time there is no rain and wind. For four days, the maximum temperature in 70 percent of the country crossed 35 degrees Celsius. And on Saturday, the maximum temperature in at least 12 districts of the country was more than 40 degrees Celsius.

According to the Meteorological Department, the humidity or water vapor content of the air in April is 75 percent; But for most of this month it was between 85 and 90 percent. Yesterday, air humidity in Dhaka was 89 percent.

In most countries of the world, including East Asia, severe weather is declared when the temperature rises above 40 degrees Celsius. And when the temperature exceeds 32 degrees Celsius and humidity exceeds 30, it is declared as hazardous weather. According to a 2022 study published by the Bangladesh Meteorological Department, the heat wave is the highest in the month of April. According to the report titled 'An Analysis of Summer Heat Wave in Bangladesh', Rajshahi, Khulna, Dhaka and Barisal divisions have the highest temperatures.

According to research, the human body is not able to adapt to extreme heat. In addition to the increase in various diseases, the risk of death is also increasing. The high temperatures are creating shortages of drinking water and electricity in the city. Apart from this reducing crop production and creating drought conditions. The extreme heat is also contributing to human temper tantrums and social unrest.