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Bangladesh
has a tropical monsoon-type climate, with a hot and rainy summer and a
pronounced dry season in the cooler months. January is the coolest month
of the year, with temperatures averaging near 26 deg C (78 d F), and April
the warmest month, with temperatures ranging between 33 deg and 36 deg
C (91 deg F and 96 deg F). The climate is one of the wettest in the world;
most places receive more than 1,525 mm (60 in) of rain a year, and areas
near the hills receive 5,080 mm (200 in). Most rain falls during the monsoon
(June-September) and little during the dry season (November-February).
Average Temperature and Rainfall
| |
Jan |
Feb |
Mar |
Apr |
May |
Jun |
Jul |
Aug |
Sep |
Oct |
Nov |
Dec |
| Max. Temp
(°C) |
25.4 |
28.1 |
32.3 |
34.2 |
33.4 |
31.7 |
31.1 |
31.3 |
31.6 |
31.0 |
28.9 |
26.1 |
| Min. Temp
(°C) |
12.3 |
14.0 |
19.0 |
23.1 |
24.5 |
25.5 |
25.7 |
25.8 |
25.5 |
23.5 |
18.5 |
13.7 |
| Rainfall
(mm) |
07.0 |
19.8 |
40.7 |
110.7 |
257.5 |
460.9 |
517.6 |
431.9 |
289.9 |
184.2 |
35.0 |
09.4 |
Cyclones

Satellite Image of the April 1991 Cyclone |
The coastal districts of Bangladesh, particularly those
flanking the Meghna estuary, are susceptible to serious damage from
cyclones, which cause major losses of life and property. In the early
summer (April and May) and late in the monsoon season (September to
November) storms of very high intensity often occure. They may create
winds with speed of 100-150 miles per hour piling up the waters of
Bay of Bengal to crests as high as 20 feet that crash with tremendous
force onto the coastal areas and offshore islands. Since the early
18th century, when records were first kept, more than one million
people have been killed in such storms --815,000 of them in three
storm occuring in 1737, 1876 and 1970. Severe storms also occured
in May 1985 and April 1991. Lesser hazards in the region are hailstorms,
particularly in March and April, and tornadoes. |
Floods
Bangladesh is one of the most flood-prone countries in the world. Essentially,
it's the flood plain where two huge rivers--the Ganges and the Brahmaputra--carry
spring snowmelt from the towering Himalayan Mountains to the sea. When
the rivers flood, so does Bangladesh.
Impact of Sea-level rise
Bangladesh being mostly formed of the Gangetic delta, will be impacted
severely if sea-levels rise as a result of the greenhouse effect. Read
about the potential impact on bangladesh.
Weather
You can also find out the current weather conditions in Bangladesh. |