Why Bangladesh Has Six Seasons Instead Of Four

Why Bangladesh Has Six Seasons Instead Of Four

Most people experience four seasons: winter, spring, summer, and fall/autumn. However, those four don't extend to every place on earth. Because of the equatorial location of the tropics, that zone only experiences two seasons: wet and dry. Areas near the Indian Ocean, meanwhile, generally experience three seasons: winter, summer, and monsoon. For various reasons including agriculture, commerce, and cultural tradition, Bangladesh divides these three seasons into six: summer (grisma, in Bengali), monsoon (barsa), autumn (sharat), late autumn (hemanta), winter (shit), and spring (basanta).

The Bengali year begins with summer. This occurs from the equivalent of mid-April to mid-June, when the weather is hot and dry with the occasional violent storm. Monsoon season traditionally spreads from mid-June to mid-August, and brings with it up to 85% of the year's total rainfall. A gradual decrease in temperature and humidity characterizes autumn, from mid-August to mid-October, then things get even cooler from mid-October to mid-December during late autumn. Mid-December to mid-February brings winter, the coolest and perhaps most pleasant season in Bangladesh, with average temperatures of 11–20ºC (52–68ºF). Finally, spring takes place from mid-February to mid-April, when warm breezes pick up and periodic thunderstorms punctuate the afternoons. Learn more about the seasons in the videos below.

Bangladesh: The Land Of Six Seasons

Explore the six seasons of Bangladesh and how they're changing over time.

What Does Global Warming Do To Monsoon Season?

Find out what a monsoon is and how it's affected by our warming planet.

What Causes Seasons?

It's not how close Earth is to the sun.


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