The climate in the Republic of Bangladesh inherent tropical with warm and and sunny winter season which lasts from November until February. It's characterized by a short spring - from March to May, and a long season of rains which goes from June to October. About 80% of all these rains are falling from May to mid-October. As a result, rain over the entire Ganga and Brahmaputra valley leads to submergence of wide areas.

The duration of the dry season here is from November to March. For this country the time of monsoon ends in October. Sometimes the rain can last until November because of an overdue cyclone, what is more likely for the southeastern part of the country.

Weather and Climate

Spring in Bangladesh

From the end of February until the end of March it's very hot in Bangladesh and constant humidity additionally exhausts. Maximal heat point is going to be in April. This season is also characterized by stormy northwest winds, which, among other things, brings showers of hail. As a rule, these unusual thunderstorms may occur in the afternoon and sometimes continue at night.

At this time of year the country celebrates:

• Independence Day of the Republic of Bangladesh from Pakistan - March 26;
• Bengali New Year - April 14-15.

Climate of the Spring Months

March Max average t°: +31.5 °C (89 °F) Min average t°: +15 °C (59 °F) Sundial in the day: 10.5 hours Rainy days: 2 days Precipitation: 42 mm (1.7")

April Max average t°: +35 °C (96 °F) Min average t°: +20.5 °C (69 °F) Sundial in the day: 9.5 hours Rainy days: 8 days Precipitation: 162 mm (6.4")

May Max average t°: +36 °C (97 °F) Min average t°: +24 °C (76 °F) Sundial in the day: 9 hours Rainy days: 12 days Precipitation: 227 mm (8.9")

(Dhaka)

Summer in Bangladesh

In June a monsoon usually begins in Bangladesh. Rainfall especially abundant in July, continuing until September - October. The rainiest area - southeast (Chittagong). At the same time, the southwestern regions (for example - Jessur) can be called arid. Air humidity during this period is extremely high everywhere.

During this period, there're no state holidays which are celebrated in the country.

Climate of the Summer Months

June Max average t°: +34.5 °C (94 °F) Min average t°: +26 °C (78 °F) Sundial in the day: 8 hours Rainy days: 13 days Precipitation: 195 mm (7.7")

July Max average t°: +32.5 °C (91 °F) Min average t°: +25.5 °C (77 °F) Sundial in the day: 6 hours Rainy days: 15 days Precipitation: 234 mm (9.2")

August Max average t°: +32 °C (90 °F) Min average t°: +26 °C (78 °F) Sundial in the day: 6.5 hours Rainy days: 14 days Precipitation: 213 mm (8.4")

(Dhaka)

Autumn in Bangladesh

The spill of two great rivers often provokes floods this season. The results are overflowed roads and flooded houses. The end of monsoon rains (October) is marked by approaching of strong winds. Usually, cyclones happen in October - and sometimes they lasts until November. Although November is a hot month more often, but not to the extreme. The average maximum air temperature this period is 30 °C (86 °F), and mostly sunny weather.

At this time of the year, in November, Nabanna is celebrated - the state harvest festival.

Climate of the Autumn Months

September Max average t°: +32 °C (89 °F) Min average t°: +25 °C (77 °F) Sundial in the day: 7 hours Rainy days: 12 days Precipitation: 179 mm (7.0")

October Max average t°: +31.5 °C (88 °F) Min average t°: +21.5 °C (71 °F) Sundial in the day: 9 hours Rainy days: 6 days Precipitation: 100 mm (3.9")

November Max average t°: +28 °C (83 °F) Min average t°: +14 °C (57 °F) Sundial in the day: 10 hours Rainy days: 1 day Precipitation: 20 mm (0.8")

(Dhaka)

Winter in Bangladesh

For winter season, which begins in December, lukewarm sunny days and chilly nights are more common. In cities like Saidpur and Rangpur in the far north the minimum temperature in January (the coldest month) is 11 °C (52 °F) and the maximum - around 23 °C (73 °F).

February 21 is the Memorial Day of Heroes, which marked the beginning of independence in the Republic of Bangladesh.

Climate of the Winter Months

December Max average t°: +24 °C (76 °F) Min average t°: +10 °C (50 °F) Sundial in the day: 10 hours Rainy days: 0 days Precipitation: 9 mm (0.35")

January Max average t°: +23 °C (73 °F) Min average t°: +9 °C (48 °F) Sundial in the day: 10 hours Rainy days: 0 days Precipitation: 3 mm (0.1")

February Max average t°: +25 °C (78 °F) Min average t°: +10.5 °C (51 °F) Sundial in the day: 10.5 hours Rainy days: 0 days Precipitation: 5 mm (0.2")

(Dhaka)