As winter deepens across Bangladesh, a distinct drop in temperatures is being observed nationwide. 

The Bangladesh Meteorological Department (BMD) forecast cooler days and nights, with temperatures expected to decline further in the coming weeks.

In its latest 72-hour forecast issued Tuesday night, the BMD said that nighttime temperatures are likely to fall by 1–2°C, while daytime temperatures could also experience a slight decline. 

The weather is expected to remain mostly dry, with light to moderate fog in some areas during the late night and early morning hours.

Winter in Bangladesh unlikely to begin before January: Meteorologist

A seasonal low-pressure system over the South Bay of Bengal and its extension into the northeastern Bay has contributed to these conditions, marking the transition into a more typical winter pattern. 

The five-day extended outlook suggests temperatures may dip even further, intensifying the chill across the country.

December: A Time of Mild Yet Distinctive Winters

December heralds a shift in Bangladesh's climate, characterised by dry conditions, cooler nights, and pleasant days.

According to international weather monitoring agencies, the average daytime highs in most regions range between 25°C and 27°C, while nighttime lows fall to around 14°C to 17°C. 

Cities like Dhaka, Chattogram, and Sylhet experience low humidity levels and abundant sunshine, making the weather conducive to outdoor activities and travel.

Dhaka’s air quality 7th worst this morning

Dhaka: Daytime temperatures typically hover between 16°C and 26°C, with little to no rainfall.

Chattogram: The coastal city enjoys mild winter weather, with temperatures ranging from 17.5°C to 25°C.

Sylhet: Known for its hilly terrain, Sylhet experiences cooler conditions, with lows reaching 13°C.

Historical Context and Cultural Significance

Winter in Bangladesh is a season of festivities and agricultural activities.

Farmers utilise this time to cultivate crops like rice and vegetables under favourable  conditions. 

Cities and rural areas alike embrace the cooler weather, with fairs, weddings, and outdoor events in full swing.

But, the chillier nights and potential fog can pose challenges for vulnerable communities, particularly in northern districts, where temperatures tend to be lower. 

Travellers are advised to exercise caution during early morning hours when visibility may be reduced due to fog.

Light rains likely in Khulna, Barishal, Chattogram divisions

Advisory for Residents and Visitors

The BMD recommends light jackets for evenings and early mornings and staying updated on weather conditions, especially for those traveling long distances. 

International visitors are encouraged to explore Bangladesh during this period, with key destinations like Cox’s Bazar, the Sundarbans, and tea gardens in Sylhet offering an ideal blend of pleasant weather and scenic beauty.

As the winter chill intensifies, Bangladesh prepares to embrace a season of natural beauty, cultural celebrations, and a much-anticipated respite from the heat.