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The climate of Bangladesh
Bangladesh is a country located in Asia. The entire country has a tropical monsoon climate (type Am according to the Köppen climate classification). The monsoon climate in Bangladesh affects the way people live and work here. Heavy rainfall during the wet season during the period from May till October causes large areas of Bangladesh to flood. Not only does all the rainwater that falls on the land end up in Bangladesh via the river deltas; this also goes for the billions of liters of water that fall in the Himalayas. The monsoon period is responsible for a lot of damage and casualties on the one hand; on the other hand it makes the land very fertile.

 

Climate information on cities and regions in Bangladesh
The climate information given on this page is only brief. Specific information on weather and climate can be found on the pages per region or city. The following climate information is available for Bangladesh:

Chittagong
Dhaka
Khulna
Rajshahi
Rangpur
Saidpur
Sylhet
 

Rainy season
Officially the monsoon is from June till August with the months of May and September as a transition period. During the monsoon more than 500 millimeters of rain can be recorded per month locally. Rain usually falls in the form of showers that can last for several hours. The biggest chance of rain is during the afternoon and the early evening. After this skies will clear rapidly. The large amount of precipitation in combination with temperatures between 30-37 degrees Celsius are responsible for high humidity figures. During this period it may feel very muggy in Bangladesh. During the summer humidity figures are well over 80 percent; during the winter humidity figures usually are between 70-75 percent. The rainy period ends in October. After this the weather is very stable and mostly sunny. Especially during the relatively cold months of November, December and January skies are often bright blue and rain is scarce.

Temperatures
Where temperatures are concerned Bangladesh also has two seasons: the slightly colder winter with maximum temperatures between 22-29 degrees Celsius and minimum temperatures between 8-19 degrees Celsius. Temperatures depend on your location in relation to the sea and the height in relation to sea level. During spring temperatures rapidly rise to 34-37 degrees Celsius. After this the monsoon starts and the heat is being moderated. During the summer differences in temperatures between day and night are the smallest. During the day temperatures will be between 31-34 degrees Celsius, during the night temperatures will drop just below 30 degrees Celsius.

Hurricanes
The biggest natural disasters that hit Bangladesh are floods and mud slides. These intense floods happen because Bangladesh is situated just south of India which is one of the wettest regions in the world. The city of Cherrapunji is situated just north of the border with Bangladesh. About 12,000 millimeters of annual rain is recorded here which makes it one of the wettest places on earth. The rain that falls here all flows toward Bangladesh. Another danger is that of hurricanes. Bangladesh is situated in a region with hurricane activity from May till December. Sometimes a tropical storm hits Bangladesh with all its consequences.

 

Climate figures
Throughout Bangladesh several climate zones and temperatures can be found. The data in the table below are an average for the capital of Dhaka and cannot be seen as an average for the entire country. Please visit the individual pages for climate information on other places and regions in Bangladesh.

average
 maximum
temperature (°C)

average
minimum

temperature (°C)
average
hours of sunshine

per
day
average days with precipitation
per month
average
mm
precipitation
per month
average
sea
temperature (°C)
January 26 13 9 1 n/a
February 29 16 8 2 n/a
March 33 22 7 3 n/a
April 36 25 7 6 n/a
May 35 28 6 10 n/a
June 34 28 3 15 n/a
July 33 27 2 15 n/a
August 32 27 2 15 n/a
September 32 26 3 11 n/a
October 32 25 6 6 n/a
November 29 19 8 1 n/a
December 27 15 8 1 n/a
= 0-5 mm ● = 6-30 mm ● = 31-60 mm ● = 61-100 mm ● = 101-200 mm ● = over 200 mm

More climate information
Climate tables are useful but they don’t give an overall picture of the climate and possible weather conditions during a period of time. How high the chances are of hot or cold weather or hurricanes can often not be found in these tables. This is why we offer extra climate information per month. The information below is an average for the capital of Dhaka. Please visit the individual pages for climate information on other places and regions in Bangladesh.
 

chance of
(very) hot

weather

chance of
(very) cool
weather
chance of
long-term

precipitation
chance of
hurricanes
(cyclones)
chance of
sunny days

UV-index

January
February
March
April
May
June
July
August
September
October
November
December
click here for the explanation of the symbols

 

Disclaimer
The information at this site was carefully composed from climate data collected by meteorological services, meteorological offices, climate experts and other sources. “More climate info” is based on statistics, climate data and personal experience. No rights can be derived from this site. Weather has no memory and gives no guaranties. Nothing is as changeable and unpredictable as the weather. The authors of this site feel in no way responsible for any damages caused by misinterpretation or other circumstances that may influence your holiday or trip to a certain destination. We provide information, it’s up to the reader to use it to it’s benefit.

 

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