Codestin Geography | Climate Zones Map

Bangladesh’s climate is influenced by its subtropical monsoon environment, leading to regional variations in temperature, rainfall, and humidity. These variations have led to the classification of the country into distinct climatic zones.​Banglapedia

Climatic Zones of Bangladesh:

1. South-Eastern Zone (A): Encompassing the Chittagong sub-region and areas extending from the southwestern Sundarbans to the south of Comilla, this zone experiences heavy rainfall (usually over 2,540 mm annually) and a narrow temperature range, with mean temperatures rarely exceeding 32°C or dropping below 13°C. ​Banglapedia
2. North-Eastern Zone (B): Covering most of eastern and southern Sylhet and a strip south of the Meghalaya Plateau, this zone has mean maximum temperatures rarely above 32°C and mean minimums around 10°C or lower. It is characterized by high humidity, appreciable winter rainfall, and frequent fog during winter months. ​Banglapedia
3. Northern Part of the Northern Region (C): This zone includes areas like Panchagarh and is distinguished by its unique climatic conditions within the northern regions of Bangladesh. ​ResearchGate
4. North-Western Region (D): Comprising areas such as Rajshahi, this region is known for being one of the hottest and driest parts of the country. ​Banglapedia
5. Western Zone (E): This area, including greater Rajshahi and parts of adjacent districts, is the driest in Bangladesh, with annual rainfall generally below 1,500 mm. Summers are notably hot and dry, with mean maximum temperatures exceeding 35°C and summer humidity dropping below 50%. ​Banglapedia
6. South-Western Region (F): Including areas like Jessore, this region has its own distinct climatic characteristics within the southwestern part of the country. ​ResearchGate
7. South-Central Zone (G): This transitory zone, which includes areas like Dhaka, experiences abundant rainfall (over 1,900 mm annually) and serves as a transition between the southeastern, northwestern, and southwestern zones. It is also where many severe hailstorms, nor’westers, and tornadoes are recorded. ​Banglapedia

Köppen-Geiger Climate Classification:

According to the Köppen-Geiger system, Bangladesh’s climate is predominantly classified as tropical monsoon (Am) and humid subtropical with a dry winter (Cwa). The central and southern regions typically fall under the tropical climate category, characterized by all months having average temperatures above 18°C and a distinct dry season in winter. In contrast, the northern mountainous areas are classified as temperate with dry winters, where the warmest month averages above 22°C. ​Climate Change Portal+2Weather Online+2ResearchGate+2

Visual Resources:

For detailed visual representations of Bangladesh’s climatic zones, you can refer to the following resources:

• Climate Zone Map of Bangladesh: This map provides a comprehensive overview of the country’s climatic zones, highlighting regional variations in climate. ​
• Climatic Zones According to Köppen-Geiger Classification: This map illustrates the Köppen-Geiger climate classifications across Bangladesh, offering insights into the spatial distribution of different climate types. ​ResearchGate

These resources offer valuable insights into the diverse climatic regions of Bangladesh, aiding in understanding the country’s weather patterns and environmental conditions.