Climate and monthly weather forecast

Flag of Bangladesh
Flag of Bangladesh

The climate of Bangladesh

Lying largely on the tropic of Cancer, Bangladesh is ensconced by India on three sides and has a southern coastline on the Bay of Bengal. Its geography is predominantly a low-lying delta plane, one of the largest in the world, made by the confluence of the Ganges, Brahmaputra, and Meghna rivers. The Köppen Climate Classification categorizes Bangladesh as having an 'Aw', or Tropical Savanna Climate, characterized by high temperatures year-round, with an average of 18°C (64.4°F) or higher each month. Rainfall is copious, especially in the monsoon season between June and October, but the country experiences a relatively dry winter period from November to February. Temperatures typically range from 20°C (68°F) to 30°C (86°F) throughout the year, with slight variations between seasons.

The best time to visit Bangladesh

The optimal time to visit Bangladesh is typically between November and February, during the dry winter months. During this time, the country experiences lower temperatures and less rainfall, providing a more comfortable and less humid climate for outdoor activities. Daytime temperatures usually hover around a pleasant 20°C (68°F) to 25°C (77°F). With the diminished precipitation, road travel becomes easier, and many of the country's festivals, including the grand celebration of Bengali New Year, are held in this period.

The worst time to visit Bangladesh

Visiting Bangladesh during the monsoon season, from June to October, may present challenges due to heavy rainfall and possible flooding, especially in the low-lying delta regions. Torrential rain can make traveling difficult, with disruptions in road, rail, and air travel. Temperatures during this season are typically high, averaging between 25°C (77°F) to 30°C (86°F), and the humidity can reach up to 85%, adding to the discomfort.

Spring weather in Bangladesh

In Bangladesh, spring, known as Basanta, spans from mid-February to mid-April. It is a brief but beautiful season, when temperatures range from 20°C (68°F) to 30°C (86°F), and the landscape is adorned with a myriad of colors from flowering plants and trees. However, the end of spring, in April and May, sees the advent of the pre-monsoon season, characterized by sporadic, heavy thunderstorms and high temperatures that can exceed 30°C (86°F).

Summer weather in Bangladesh

Summer in Bangladesh coincides with the monsoon season, running from June to October. The country receives around 80% of its annual rainfall during this period. Daily temperatures typically sit between 25°C (77°F) to 30°C (86°F), but can occasionally climb higher. The heavy precipitation and high temperatures lead to high humidity levels, often reaching up to 85%.

Autumn weather in Bangladesh

Autumn, from October to mid-November, is a brief transition season in Bangladesh. With the monsoon rains easing, the country's landscape turns green and lush. The weather during this period is warm and humid, with temperatures ranging from 25°C (77°F) to 30°C (86°F).

Winter weather in Bangladesh

Winter in Bangladesh, from mid-November to February, is the driest season of the year. Daytime temperatures range from 20°C (68°F) to 25°C (77°F), dropping to 10°C (50°F) to 12°C (53.6°F) at night, which can feel quite chilly to residents. Despite the lower temperatures, the bright winter sun makes this an attractive time for visitors. The countryside is abundant with seasonal flowers and bountiful harvests during this period.

Weather in January

January is the coldest month of the year in Bangladesh. The entire country experiences a notable drop in temperatures compared to December, with average daytime temperatures ranging from 18°C (64.4°F) to 22°C (71.6°F). At night, the temperature can dip down to a chilly 10°C (50°F), especially in the northwest regions such as Rajshahi and Rangpur. Weather in January »

Weather in February

As the final month of winter, February in Bangladesh sees a slight increase in temperature compared to January, signaling the transition towards the warmer months. Daytime temperatures across the country start to rise, usually ranging from 20°C (68°F) to 26°C (78.8°F). Weather in February »

Weather in March

March marks the onset of spring, known as Basanta, in Bangladesh. It is characterized by an increase in temperatures, with daytime averages between 25°C (77°F) to 30°C (86°F) across the country. At night, temperatures typically hover around 20°C (68°F), providing relief from the heat of the day. Weather in March »

Weather in April

April in Bangladesh signals the arrival of the pre-monsoon season and sees a significant rise in temperature across the country. Average daytime temperatures typically hover between 30°C (86°F) to 35°C (95°F), making it one of the warmest months of the year. Weather in April »

Weather in May

May is characterized by hot and humid conditions in Bangladesh as it marks the end of the pre-monsoon season. Average daytime temperatures can reach highs between 32°C (89.6°F) and 38°C (100.4°F), and nighttime temperatures seldom fall below 25°C (77°F). Weather in May »

Weather in June

June marks the onset of the monsoon season in Bangladesh, where the weather is dominated by high humidity and heavy rainfall. Daytime temperatures generally range between 30°C (86°F) to 35°C (95°F), while nighttime temperatures hover around 27°C (80.6°F). Weather in June »

Weather in July

July is the peak of the monsoon season in Bangladesh, characterized by persistent heavy rainfall, high humidity, and warm temperatures. Daytime temperatures typically hover between 29°C (84.2°F) and 34°C (93.2°F), while at night, they drop to 26°C (78.8°F). Weather in July »

Weather in August

August continues the trend of the monsoon season in Bangladesh, with high humidity, warm temperatures, and significant rainfall. Average daytime temperatures generally hover between 29°C (84.2°F) to 33°C (91.4°F), while nighttime temperatures range around 26°C (78.8°F). Weather in August »

Weather in September

September signifies the gradual withdrawal of the monsoon season in Bangladesh. While the country still experiences heavy rainfall, there is a significant reduction compared to the peak monsoon months of July and August. Average daytime temperatures generally range from 29°C (84.2°F) to 33°C (91.4°F), with nighttime temperatures around 26°C (78.8°F). Weather in September »

Weather in October

October marks the transition from the monsoon season to autumn in Bangladesh, bringing a noticeable decrease in rainfall and a slight drop in temperature. Average daytime temperatures generally range from 28°C (82.4°F) to 32°C (89.6°F), while nighttime temperatures fall to 24°C (75.2°F). Weather in October »

Weather in November

November in Bangladesh heralds the onset of the dry winter season, characterized by significantly reduced rainfall and cooler temperatures. Average daytime temperatures range from 25°C (77°F) to 30°C (86°F), while nighttime temperatures drop to 20°C (68°F), offering a relief from the warm days. Weather in November »

Weather in December

December in Bangladesh represents the peak of the dry winter season, with the country experiencing its lowest rainfall and coolest temperatures of the year. Average daytime temperatures typically range from 22°C (71.6°F) to 27°C (80.6°F), offering a pleasant respite from the heat. Weather in December »


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