ArtsAutosBooksBusinessEducationEntertainmentFamilyFashionFoodGamesGenderHealthHolidaysHomeHubPagesPersonal FinancePetsPoliticsReligionSportsTechnologyTravel

Visit Bangladesh

Updated on January 6, 2012

Bangladesh, lying in the subtropical monsoon region to the south of the Himalayas, experiences three major seasons.

Only winter, from December to March, is relatively undisturbed. Cool, stable north-easterlies give warm, dry days and cool nights, with thick fog commonly developing at night over the waterways.

Even in January mean daily temperatures rarely fall below 15°C. At the end of March the situation changes, and from April to June torrential thunderstorms, known locally as Nor'westers, bring very heavy rainfall. These storms occur when high-level troughs in the westerly jet stream, located south of the Himalayas between 9,000 to 12,000 meters up, coincide with depressions moving in from the east-south-east over the Bay of Bengal.

The rains frequently arrive well before the wind reversal commonly associated with the first appearance of the monsoons. These storms and their accompanying rainfall release latent heat on a sufficient scale to be a significant trigger mechanism in the monsoon wind reversal which affects the whole of the Indian subcontinent.

The third major season is that of the monsoon itself. The succession of events which leads to the bursting of the monsoon is highly complex.

In early June, the high-level westerly jet stream shifts to the north of the Himalayas and the Tibetan Plateau. While for most of the year a semi-permanent trough lies over Bengal, this now breaks into two parts, one centered on the Pamirs and the other on Szechwan (Sichuan) further east. Simultaneously, the equatorial westerlies deepen, and it is with this air stream that the cyclones which bring most of Bangladesh's rainfall come.

Climate throughout the country is fairly uniform, with minor modifications being found in the eastern and southeastern uplands.

High humidity (over 75%) is characteristic throughout the year, and both annual and diurnal temperature ranges are generally very small. Summer maxima rarely go above 36°C and minimum temperatures, even in the Hill Tracts, generally remain above 10°C. During the monsoon period the diurnal range of temperature is about 6°C. Rainfall shows a decline from east to west, but even the districts of Rajshahi and Kushtia in the extreme west receive over 1,500 mm per annum. Only in the extreme northeast and southeast do rainfall totals exceed 3,000 mm. Most of the rainfall comes between April and November, and towards the end of the monsoon period severe cyclonic storms commonly develop.

The extensive low-lying areas of the delta are repeatedly endangered by the consequent catastrophic flooding, as occurred in December 1970.

At the apex of the Bay of Bengal, the Bangladesh delta is subject not only to floods from overflowing rivers, but from storm surges which may raise the sea level by as much as 10 feet.

Although the swampy Sundarbans in the southwest are sparsely inhabited and therefore suffer relatively little, the islands in the mouth of the Ganges to the east are settled much more densely, and therefore suffer far more severe damage.


    0 of 8192 characters used
    Post Comment

    No comments yet.


    This website uses cookies

    As a user in the EEA, your approval is needed on a few things. To provide a better website experience, uses cookies (and other similar technologies) and may collect, process, and share personal data. Please choose which areas of our service you consent to our doing so.

    For more information on managing or withdrawing consents and how we handle data, visit our Privacy Policy at:

    Show Details
    HubPages Device IDThis is used to identify particular browsers or devices when the access the service, and is used for security reasons.
    LoginThis is necessary to sign in to the HubPages Service.
    Google RecaptchaThis is used to prevent bots and spam. (Privacy Policy)
    AkismetThis is used to detect comment spam. (Privacy Policy)
    HubPages Google AnalyticsThis is used to provide data on traffic to our website, all personally identifyable data is anonymized. (Privacy Policy)
    HubPages Traffic PixelThis is used to collect data on traffic to articles and other pages on our site. Unless you are signed in to a HubPages account, all personally identifiable information is anonymized.
    Amazon Web ServicesThis is a cloud services platform that we used to host our service. (Privacy Policy)
    CloudflareThis is a cloud CDN service that we use to efficiently deliver files required for our service to operate such as javascript, cascading style sheets, images, and videos. (Privacy Policy)
    Google Hosted LibrariesJavascript software libraries such as jQuery are loaded at endpoints on the or domains, for performance and efficiency reasons. (Privacy Policy)
    Google Custom SearchThis is feature allows you to search the site. (Privacy Policy)
    Google MapsSome articles have Google Maps embedded in them. (Privacy Policy)
    Google ChartsThis is used to display charts and graphs on articles and the author center. (Privacy Policy)
    Google AdSense Host APIThis service allows you to sign up for or associate a Google AdSense account with HubPages, so that you can earn money from ads on your articles. No data is shared unless you engage with this feature. (Privacy Policy)
    Google YouTubeSome articles have YouTube videos embedded in them. (Privacy Policy)
    VimeoSome articles have Vimeo videos embedded in them. (Privacy Policy)
    PaypalThis is used for a registered author who enrolls in the HubPages Earnings program and requests to be paid via PayPal. No data is shared with Paypal unless you engage with this feature. (Privacy Policy)
    Facebook LoginYou can use this to streamline signing up for, or signing in to your Hubpages account. No data is shared with Facebook unless you engage with this feature. (Privacy Policy)
    MavenThis supports the Maven widget and search functionality. (Privacy Policy)
    Google AdSenseThis is an ad network. (Privacy Policy)
    Google DoubleClickGoogle provides ad serving technology and runs an ad network. (Privacy Policy)
    Index ExchangeThis is an ad network. (Privacy Policy)
    SovrnThis is an ad network. (Privacy Policy)
    Facebook AdsThis is an ad network. (Privacy Policy)
    Amazon Unified Ad MarketplaceThis is an ad network. (Privacy Policy)
    AppNexusThis is an ad network. (Privacy Policy)
    OpenxThis is an ad network. (Privacy Policy)
    Rubicon ProjectThis is an ad network. (Privacy Policy)
    TripleLiftThis is an ad network. (Privacy Policy)
    Say MediaWe partner with Say Media to deliver ad campaigns on our sites. (Privacy Policy)
    Remarketing PixelsWe may use remarketing pixels from advertising networks such as Google AdWords, Bing Ads, and Facebook in order to advertise the HubPages Service to people that have visited our sites.
    Conversion Tracking PixelsWe may use conversion tracking pixels from advertising networks such as Google AdWords, Bing Ads, and Facebook in order to identify when an advertisement has successfully resulted in the desired action, such as signing up for the HubPages Service or publishing an article on the HubPages Service.
    Author Google AnalyticsThis is used to provide traffic data and reports to the authors of articles on the HubPages Service. (Privacy Policy)
    ComscoreComScore is a media measurement and analytics company providing marketing data and analytics to enterprises, media and advertising agencies, and publishers. Non-consent will result in ComScore only processing obfuscated personal data. (Privacy Policy)
    Amazon Tracking PixelSome articles display amazon products as part of the Amazon Affiliate program, this pixel provides traffic statistics for those products (Privacy Policy)