DHAKA, Jan 7, 2026 (BSS) - The country experienced its lowest temperature of the season today as the mercury fell to 6.7 degrees Celsius at Badalgachhi in Naogaon, according to the Bangladesh Meteorological Department (BMD).

The Met Office said a mild to moderate cold wave is sweeping over Rajshahi, Rangpur, Khulna and Barishal divisions, along with several districts including Tangail, Faridpur, Madaripur, Gopalganj, Kishoreganj, Manikganj, Narsingdi, Narayanganj, Netrokona, Moulvibazar, Lakshmipur and Cumilla. 

The cold wave has now swelled across 32 districts and may continue.

In sharp contrast, Teknaf in Cox's Bazar recorded the country's highest temperature today at 26.5 degrees Celsius, underscoring the wide variation between the northern and southern regions.

The BMD forecast, effective from 9am today for the next 24 hours, said weather may remain dry with partly cloudy skies. 

Moderate to thick fog is likely to occur from midnight to morning and may persist till noon in some places.

Night temperatures are expected to remain nearly unchanged, while daytime temperatures may rise slightly.

Met statistics showed that the lowest temperature has steadily declined over the past three days - from 7.5 degrees Celsius on Monday to 7.0 degrees Celsius on Tuesday in Rajshahi, before dropping further to 6.7 degrees Celsius today in Naogaon.

In Dhaka, the temperature fell by about two degrees Celsius compared to yesterday, though dense fog was absent in many areas.

According to BMD classification, a mild cold wave occurs when the minimum temperature ranges between 8.1 and 10 degrees Celsius, a moderate cold wave between 6.1 and 8 degrees Celsius, and a severe cold wave between 4.1 and 6 degrees Celsius. Temperatures below 4 degrees Celsius are considered a very severe cold wave.

The long-range forecast issued earlier by BMD this month predicted at least five cold waves in January, including one severe cold wave.

In Dhaka, today's sunset will be at 5:28 pm and tomorrow's sunrise at 6:43 am.