The temperature in the country has exceeded 40 degrees Celsius. The highest temperature recorded today was 40.2 degrees Celsius in Patuakhali's Khepupara upazila. Muhammad Abul Kalam Mallik, Meteorologist at Bangladesh Meteorological Department confirmed this information on Monday (April 15) afternoon. The country's highest temperature was recorded in Rangamati at 40 degree Celsius on Sunday (14 April). He said the highest temperature recorded today was 40.2 degrees Celsius at Khepupara. In Khepupara, the temperature has increased by 1.2 degrees Celsius in a span of one day. Khepupara recorded a maximum temperature of 39 degrees Celsius on Sunday. The maximum temperature in Rangamati on Sunday was 40 degrees Celsius. He also said that the temperature in the capital Dhaka has also increased today. The maximum temperature in Dhaka was recorded at 37.6 degrees Celsius today. Which was 37.5 degrees Celsius yesterday. According to the BMD, Day temperature may remain nearly unchanged and night temperature may rise slightly over the country in the next 24 hours from 9:00am today.

The lowest temperature of the season was recorded in Panchagarh’s Tetulia at 5.8C at 6am on Friday (Jan 26). Earlier on Jan 23, the lowest temperature of the season was recorded at 6.6C in Chuadanga and Sirajganj.   Public life is disrupted by the shivering cold, further intensified by dense fog and the freezing northern air. Vehicles are moving with headlights on.     Rokonuzzaman, an observer of the Tentulia weather observatory center, told Somoy that the country’s lowest temperature was recorded at 6am in Tetulia. The same temperature was recorded at 9am. According to the sources of the Meteorological Department, 2018 has been the coldest in recent years. On Jan 8 of that year, the temperature dropped to 2.6C in Panchagarh's Tentulia, which is the lowest temperature recorded in the history of Bangladesh.     However, the lowest temperature recorded in Dinajpur was 3.8C in 1996.   Besides, in 2019, a temperature of 4.9C was recorded in Tentulia, 4.5C was recorded in Jashore on Jan 12, 2011, and 5C was recorded in Kurigram in 2017.  

The minimum temperature in Dhaka was recorded at 12.1 degrees Celsius (°C) in a weather forecast issued at 9 am on Monday, which is the lowest temperature in Dhaka in the current winter season. Meteorologist Md Omar Faruq confirmed the matter. Meanwhile, a mild cold wave is sweeping over Rangpur and Rajshahi divisions and the districts of Jashore, Kushtia, Chuadanga, Tangail, Madaripur, and Kishoreganj and it may continue, the Bangladesh Meteorological Department (BMD) said in a forecast for the next 72 hours commencing at 9am today. The lowest temperature – 8.1 degrees Celsius – was recorded in Badalgachi upazila of Naogaon and Dinajpur, while the highest temperature – 27.6 degrees Celsius – was recorded in Teknaf upazila of Cox’s Bazar, according to the Met office.   The Met Office says a Ridge of sub-continental high extends up to West Bengal and adjoining areas. Due to this, the seasonal low lies over South Bay. In such a situation, the weather may remain dry with a partly cloudy sky from 9 am today for the next 24 hours. During this period, moderate to dense fog may occur over the country from midnight to morning and it may continue till noon at places. Besides, due to dense fog, there may be disruption in air navigation, inland river transport and road communication. The night temperature may fall by (1-2)°C and the day temperature may fall slightly over the country for the next 24 hours.  At present, a mild cold wave is sweeping over Jashore, Kushtia, Chuadanga, Tangail, Madaripur and Kishoreganj districts along with Rangpur and Rajshahi divisions and it may continue.

Sreemangal in Moulvibazar has experienced today's (Jan 16) lowest temperature at 9.7 degrees Celsius, indicating a mild cold wave impacting several regions across Bangladesh. The Bangladesh Meteorological Department (BMD) anticipates this cold wave to persist. According to meteorological standards, temperatures ranging from 8 to 10 degrees Celsius signify a mild cold wave, 6 to 8 degrees Celsius a moderate one, and below 6 degrees Celsius a severe cold wave. The weather bulletin highlighted the contrasting temperatures across the country, with Sreemangal witnessing the lowest, while Cox's Bazar reported the highest at 24.5 degrees Celsius. Moreover, moderate to thick fog is expected to envelop the country from midnight to morning, possibly extending until noon in some areas. This foggy condition is likely to disrupt air navigation, inland river transport, and road communication temporarily. The weather forecast suggests dry conditions with temporary partly cloudy skies across the country, with no significant change in night and day temperatures expected. The cold wave's impact is palpable among the populace, with Dhaka residents and others feeling winter's bite more acutely in recent days. The northern regions are experiencing even harsher conditions, where the intense cold has significantly hampered daily activities. Vulnerable groups, particularly day laborers, children, and the elderly, are the most affected by the severe cold.  

At first glance, the news published by the EU's Copernicus Climate Change Service (C3S) is disturbing: On July 31, 2023, the average temperature of the global ocean surface was exactly 20.9648 degrees Celsius (69.73664 degrees Fahrenheit), above the previous record set in 2016. However, compared to 2016, this is only an extremely small increase of exactly 0.0188 degrees. Back then, the highest value was 20.95 degrees Celsius (if rounded up). So is the new temperature record actually just much ado about nothing? Unfortunately not because it fits in with the general trend this year — a trend that is consistently pointing upwards. World's oceans getting warmer and warmer  Since April, the global average daily surface temperature of the Earth's oceans (excluding the polar regions) has remained at record levels, which is simply far too warm for the time of year. For example, according to Copernicus analyses, daily average maritime temperatures had already reached 20.94 degrees Celsius on July 19. In addition, record surface water temperatures have persisted in the North Atlantic. In June, they averaged 0.91 degrees Celsius, the warmest of any Copernicus record for that period. And according to data from the US National Oceanographic and Atmospheric Administration (NOAA), preliminary measurements show the sea surface in the North Atlantic actually reached an all-time high temperature of 24.9 degrees Celsius during the last week of July this year. NOAA scientist Xungang Yin told the AFP news agency that sea surface temperatures are expected to "continue to rise in August." Normally, the North Atlantic reaches its maximum temperature in early September, according to the NOAA. Highest category of heatwave in the North Atlantic  In June, the North Atlantic was already experiencing a maritime heatwave of the highest category, explained Samantha Burgess of C3S in an interview with DW. One can assume that this will lead to a further large-scale fish deaths. There was also a risk of more storms forming in the North Atlantic, she added. "The ocean has absorbed 90% of the excess heat from extra greenhouse gases in the atmosphere," Burgess told DW. "The ocean is the proverbial enormous sponge that soaks up this extra heat when it gets hotter than what we have seen in the past." This situation is extreme. "We've seen maritime heatwaves before, but this is very persistent and spread out over a large surface area" in the North Atlantic, Karina von Schuckmann of the Mercator Ocean International research center told AFP. Record temperatures in the Mediterranean Sea  Water temperatures in the Mediterranean Sea also broke records this year. For example, Spanish researchers reported at the end of July that the daily mean sea surface temperature was 28.71 degrees Celsius. The Mediterranean region, which experienced record heatwaves in July, has long been considered a climate change hotspot. "Temperatures in the ocean are an absolute master switch," said Thorsten Reusch, a biologist at the Geomar Helmholtz Centre for Ocean Research. The smallest changes could shake up the global climate system. "What we are seeing now is beyond any previously recorded water temperatures. That is definitely remarkable and alarming." The high ocean surface temperatures also coincide with the development of El Nino conditions, a period of warmer-than-average sea surface temperature values in the tropical Pacific. This naturally occurring climate pattern, which began on July 4 according to the World Meteorological Organization (WMO), results in a higher likelihood of extreme heat in many regions and in the ocean. A taste of what's to come In general, this year's July was accompanied by extremes and records. According to UN figures, it is most likely the hottest month since weather records began and probably has seen temperatures "unprecedented" for thousands of years.   In particular, parts of Europe, Asia and North America were hit by heatwaves and devastating wildfires. These extreme weather occurances were simply a taste of what is to come for the world's climate, warned the WMO and the EU's C3S observation program. "Man-made emissions are ultimately the main cause of this temperature rise," says Carlo Buontempo, director of C3S. Science has shown that weather extremes such as heatwaves are increasing in intensity and frequency as a result of global climate change. The Earth has already warmed by about 1.2 degrees Celsius since the beginning of the industrial age.  The Paris climate agreement aims to limit warming to well below two degrees, but preferably to 1.5 degrees. As it stands now, however, the Earth is heading for a dangerous warming of about four degrees.

The maximum temperature recorded in Dhaka today 40.4 degrees Celsius, the highest since 1965. After 1965, it has been the hottest day in Dhaka on saturday, April 15. Bangladesh Meteorological Department said, "Today the maximum temperature recorded in Dhaka 40.4 degrees Celsius, which is the highest since 1965. A temperature of 42 degrees Celsius was recorded that year." The highest temperature recorded in the capital yesterday was 40.2 degrees Celsius, which was last recorded 9 years ago on April 14, 2014. Today the highest temperature in the country recorded at Chuadanga at 42.2 degrees.

The country's lowest temperature today dropped to the season's lowest of 6.1 degrees Celsius at Tentulia, exposing the poor, elderly people and children to intense misery there as elsewhere across the northern region. The sky remained covered behind thick layers of fog and clouds amid blowing cooler winds causing bone-chilling cold forcing people to remain indoors and farm-labourers could not go to crop fields to conduct their normal works till noon.   As the visibility range reduced to the minimum due to the reasons, vehicular traffic remained affected forcing drivers to drive vehicles putting head-lights on to avert accidents on the roads and highways.   The Met Office sources said the mercury level sharply dropped to 6.1 degrees Celsius at Tentulia against yesterday's lowest of 8.3 degrees Celsius in the last 24 hours ending at 9 am today, further deteriorating the weather.   Besides, the minimum temperatures recorded today were 11 degrees Celsius at Rangpur, 9 degrees Celsius at Dinajpur, 8.8 degrees at Saidpur, 8.7 degrees Celsius at Dimla and 9.8 degrees Celsius at Rajarhat monitoring points in the region.   However, the situation marked a little improvement with the appearance of the sun at noon in most areas of the region penetrating thick layers of fog and clouds.     Divisional Director (Health) Dr. Md. Habibur Rahman said doctors continued to treat a higher number of people with cough, fever, asthma and other cold-related diseases at the health facilities in the region today like in recent days.   "We have adequate stock of medicines in hospitals and other health facilities and special steps were taken at the government-run health facilities to treat cold-related patients, including babies and children," he added.   Officials at hospitals, upazila health complexes and community clinics said the number of patients with cough, fever; asthma and other cold- related diseases continued increasing today like in the previous few days.   Additional Divisional Commissioner (General) Md. Abu Jafar told BSS that distribution of warm clothes continues in full swing to cold-stricken people in all eight districts of Rangpur division.   "The government has sanctioned huge blankets for distribution to cold-hit people of Nilphamari, Rangpur, Kurigram, Gaibandha, Lalmonirhat, Dinajpur, Thakurgaon and Panchagarh districts in the region," he said.   Besides, the government has allocated money for all eight districts in the division to purchase warm clothes locally and distribute those among cold-hit people.   Meanwhile, different voluntary, professional, sociocultural and charitable organizations, trade bodies and other institutions are extending their hands in distributing warm clothes to cold-stricken people to mitigate their sufferings in the region.   Additional Director of the Department of Agricultural Extension for Rangpur region Agriculturist Mohammad Shah Alam said the sweeping cold wave might affect normal growth of different Rabi crop plants if the situation further deteriorates.   "Field level agriculture officers are extending assistance to farmers in taking proper care of Rabi crop plants and Boro rice seedlings to save those from cold injuries in Rangpur region," he added.   Reports reaching here from remote and char villages in Kurigram, Dinajpur, Thakurgaon, Panchagarh, Lalmonirhat, Gaibandha, Rangpur and Nilphamari districts said that normal life remained severely affected till noon today.

Cold wave sweeping over the country. After several days of severe winter, the capital Dhaka has seen the sun shining since yesterday, but the severity has not yet subsided in most of the country's districts. On Tuesday, January 10 the lowest temperature of the country has come down to 6.9 degrees in Panchagarh, which is also the lowest this season. The destitute people of many district have suffered. Moderate cold wave sweeping over Panchagarh, the northern district of the country. With wind, Drizzling rain is falling. Meteorologist Abdul Hamid Mia said, "The lowest temperature in the country is in Panchagarh. 6.9 degree Celsius was recorded there. Yesterday the temperature in Panchagarh was 7 degrees Celsius. Apart from this, the temperature was recorded at 7.9 degrees Celsius in Dinajpur and 8 degrees Celsius in Rajarhat of Rangpur.

The humble honeybee can control temperature in astounding ways – from keeping the hive cool through heat waves to cooking their enemies alive.Hornets can be vicious. Some like nothing more than smashing their way into a beehive, decapitating its inhabitants and leaving the colony in ruins. But the hornet that dares attack a Japanese honeybee colony might get more than it bargained for. As the hornet hones in, a defensive army swarms the attacker. Hundreds of bees buzz so furiously, the temperature at the heart of their dense mass rises to 46 degrees Celsius (about 115 degrees Fahrenheit). When the swarm dissipates, it leaves behind a dead hornet cooked alive by its would-be prey. The hot defensive bee ball is a high-stakes tactic a few soldier bees usually lose their lives along with the hornet and not common to all species of bee. But its principles of working together for the good of the colony, and skillfully controlling temperature, are echoed in beehives around the world. A temperature-controlled superorganism Unlike mammals, insects can’t regulate their own body temperature. But working together, the beehive acts like superorganism with a steady internal warmth. To raise their young, honeybees need to keep their home within a cosy 33 to 36 degrees Celsius. Luckily, bees can sense temperature changes of just a quarter of a degree. And they have a knack for insulated architecture that any environmentally minded homeowner might aspire to. They carefully select sheltered sites to build their hives, and use propolis made from resins gathered from plants to plug holes and keep out drafts and moisture. The brood chamber itself is encased in layers of pollen, honey and wax. And if that isn’t enough, adult bees huddle their fuzzy bodies together to keep one other, and their young, warm. Keeping cool in a warming world Insulation keeps warmth out as well as in, and during heat waves, bees also proactively work to keep the colony cool gathering water, which they distribute in droplets throughout the hive, and fanning air through its chambers with their wings. The climate crisis is taking its toll on bees, and causing some populations to fall out of sync with the flowering plants they depend on for food. But researchers are looking into whether their impressive thermoregulation abilities might help bees survive in a warming world.

The meteorological department has forecasted that the ongoing drizzle may continue till Wednesday with interruption across the country. As a result temperature may fall and cold wave may increase. The night temperature may fall starting from Thursday when the rain is over. At that time cold wave in different parts of the country may prevail. Light rain was experienced in different regions including the capital on Monday. For that reason the temperature has fallen and cold wave increases. Met office in its forecast for next 24 hours said that light rain or drizzle may come down in different areas of Barishal, Chattogram, Sylhet, Rajshahi, Rangpur and Mymensingh division. As well as moderate fog may appear in some parts of the country. According to the met office notification, in the past 24 hours seven millimeters rain was experienced in Dhaka and Kumarkhali. Besides, slight rain was experienced in Rangpur, Rajarhat, Sylhet, Cox’s Bazar and Tangail. AH