Bangladesh Weather by Month

Bangladesh is located in South Asia, bordered by India to the west, north, and east, Myanmar to the southeast, and the Bay of Bengal to the south. It occupies an area of approximately 147,570 square kilometers, making it one of the most densely populated countries in the world. The landscape of Bangladesh is dominated by flat alluvial plains formed by the confluence of three major river systems: the Ganges (Padma), Brahmaputra (Jamuna), and Meghna. These rivers are critical to the country’s agriculture, economy, and daily life, but they also contribute to seasonal flooding, which is a common occurrence.

The country’s climate is primarily tropical, influenced by the monsoon winds, with three main seasons: the hot and humid summer (March to June), the monsoon season (June to October), and the cooler winter (November to February). Rainfall is abundant, especially during the monsoon months, and temperatures remain warm throughout the year. Given its geographical location and low elevation, Bangladesh is highly vulnerable to climate change, sea-level rise, and tropical cyclones.

Bangladesh Weather by Month

January

General Overview

• Average temperature: 12-26°C (54-79°F)
• Rainfall: Minimal, dry season

January is one of the coolest months in Bangladesh, as it falls during the country’s winter season. The weather is generally dry, with clear skies and cool mornings and evenings. Temperatures are mild during the day, making it a comfortable time to explore both urban and rural areas. Northern regions tend to experience lower temperatures compared to the southern coastal areas.

Regional Differences

• Northern Bangladesh (Rangpur, Rajshahi): Cooler, with temperatures between 12-22°C (54-72°F)
• Central Bangladesh (Dhaka): Mild, with temperatures ranging from 14-25°C (57-77°F)
• Southern Bangladesh (Chittagong, Cox’s Bazar): Warmer, with temperatures between 15-26°C (59-79°F)

January is an ideal month for travel in Bangladesh due to its mild weather, clear skies, and minimal rainfall. Outdoor activities, cultural exploration, and beach visits are all favorable during this time.

February

General Overview

• Average temperature: 15-29°C (59-84°F)
• Rainfall: Dry season continues with minimal rain

February is still part of Bangladesh’s dry season, but temperatures begin to rise slightly compared to January. The weather remains pleasant, with warm days and cool nights. Humidity levels remain low, making it one of the most comfortable months of the year for travel and outdoor activities.

Regional Differences

• Northern Bangladesh: Mild and dry, with temperatures between 15-26°C (59-79°F)
• Central Bangladesh: Pleasant, with temperatures around 16-28°C (61-82°F)
• Southern Bangladesh: Warm, with temperatures between 17-29°C (63-84°F)

February is a popular month for tourists, as the dry and mild conditions allow for comfortable sightseeing, trekking in hill areas, and beach vacations.

March

General Overview

• Average temperature: 20-33°C (68-91°F)
• Rainfall: Slight increase in rainfall, but still relatively dry

March marks the beginning of the hot season in Bangladesh, with rising temperatures and the start of occasional pre-monsoon rains, particularly toward the end of the month. The weather remains dry for the most part, but humidity starts to increase. Daytime temperatures can become quite warm, especially in the central and southern parts of the country.

Regional Differences

• Northern Bangladesh: Warmer, with temperatures between 18-32°C (64-90°F)
• Central Bangladesh: Hot, with temperatures around 20-33°C (68-91°F)
• Southern Bangladesh: Warm and more humid, with temperatures between 22-33°C (72-91°F)

March is a transitional month, with warmer weather making beach visits and exploring the countryside pleasant, though the increasing heat may be uncomfortable for some.

April

General Overview

• Average temperature: 24-36°C (75-97°F)
• Rainfall: Pre-monsoon rain showers, particularly in the south and hill regions

April is one of the hottest months in Bangladesh, with daytime temperatures often exceeding 35°C (95°F) in many parts of the country. Pre-monsoon rains increase, especially in the southern and hilly areas. Humidity levels also rise, making the weather feel hotter than it is. The rains are sporadic but can be heavy at times.

Regional Differences

• Northern Bangladesh: Very hot, with temperatures between 22-35°C (72-95°F)
• Central Bangladesh: Hot and humid, with temperatures around 24-36°C (75-97°F)
• Southern Bangladesh: Hot with increasing rain, temperatures between 25-36°C (77-97°F)

April is the beginning of Bangladesh’s more challenging weather for travel, with high temperatures and increasing humidity. However, the coastal areas and hill regions, such as Bandarban and Sylhet, can offer relief with cooler, rainier conditions.

May

General Overview

• Average temperature: 26-37°C (79-99°F)
• Rainfall: Significant pre-monsoon rainfall, particularly in southern and eastern regions

May is the peak of the pre-monsoon season in Bangladesh. Temperatures remain high, often surpassing 37°C (99°F), and rainfall becomes more frequent, especially in the southern and eastern parts of the country. The humidity is also high, creating uncomfortable conditions in many areas. The rains bring some relief from the heat, but they can be heavy, leading to localized flooding.

Regional Differences

• Northern Bangladesh: Very hot, with temperatures between 24-36°C (75-97°F)
• Central Bangladesh: Hot and humid, with temperatures around 26-37°C (79-99°F)
• Southern Bangladesh: Frequent rain, with temperatures between 27-36°C (81-97°F)

May is a challenging month for travel, especially in low-lying areas prone to flooding. Coastal and hilly areas provide cooler alternatives, though rain is frequent.

June

General Overview

• Average temperature: 26-34°C (79-93°F)
• Rainfall: Beginning of the monsoon season, heavy and frequent rain

June marks the onset of the monsoon season in Bangladesh. Heavy rain showers become frequent and widespread, particularly in the southern and eastern regions. Temperatures remain warm but drop slightly due to the rain. The increased rainfall can lead to flooding in low-lying areas and cities, and travel can be disrupted in some parts of the country.

Regional Differences

• Northern Bangladesh: Warm with rain, temperatures between 25-33°C (77-91°F)
• Central Bangladesh: Wet and humid, with temperatures around 26-34°C (79-93°F)
• Southern Bangladesh: Heavy rain and humid, temperatures between 26-34°C (79-93°F)

June is not an ideal time for travel due to the heavy rains and potential for flooding. However, the lush greenery brought by the rains can be a beautiful sight, particularly in the hill tracts and countryside.

July

General Overview

• Average temperature: 25-33°C (77-91°F)
• Rainfall: Peak of the monsoon season, with frequent heavy rains

July is one of the wettest months in Bangladesh, with continuous heavy rains throughout the country. The monsoon rains are intense, often leading to flooding, particularly in the low-lying areas along the rivers. Temperatures remain warm, but the humidity levels are very high, making the weather feel oppressive.

Regional Differences

• Northern Bangladesh: Rainy and warm, with temperatures between 25-32°C (77-90°F)
• Central Bangladesh: Heavy rain and humid, with temperatures around 25-33°C (77-91°F)
• Southern Bangladesh: Very wet, with temperatures between 26-33°C (79-91°F)

July is not recommended for travel due to the widespread rains, flooding, and potential for travel disruptions. However, the monsoon season brings a dramatic transformation to the landscape, making it lush and vibrant.

August

General Overview

• Average temperature: 25-33°C (77-91°F)
• Rainfall: Monsoon continues, with heavy rains across the country

August is still part of the peak monsoon season, with heavy rains continuing to fall across much of Bangladesh. Flooding remains a concern, especially in low-lying areas near rivers and coastal regions. Temperatures remain warm but somewhat lower than the hot season, though the high humidity can make it feel uncomfortable.

Regional Differences

• Northern Bangladesh: Warm and rainy, with temperatures between 25-32°C (77-90°F)
• Central Bangladesh: Wet and humid, with temperatures around 25-33°C (77-91°F)
• Southern Bangladesh: Very wet and humid, with temperatures between 26-33°C (79-91°F)

August is similar to July in terms of travel challenges, with heavy rainfall and the possibility of flooding making travel difficult. However, it’s an ideal time to experience the beauty of Bangladesh’s green landscapes.

September

General Overview

• Average temperature: 25-33°C (77-91°F)
• Rainfall: End of the monsoon season, with decreasing rainfall

September is the tail end of the monsoon season in Bangladesh. Rainfall begins to decrease, though heavy showers are still common. Floodwaters may take time to recede in some areas, but the overall weather improves toward the end of the month. Temperatures remain warm, and the humidity is still high.

Regional Differences

• Northern Bangladesh: Warm with decreasing rain, temperatures between 25-32°C (77-90°F)
• Central Bangladesh: Warm and wet, with temperatures around 25-33°C (77-91°F)
• Southern Bangladesh: Decreasing rain, with temperatures between 26-33°C (79-91°F)

September offers a transition out of the monsoon season, and while travel is still difficult in some areas, it’s a good time to experience Bangladesh’s lush post-monsoon greenery.

October

General Overview

• Average temperature: 24-32°C (75-90°F)
• Rainfall: End of the monsoon season, occasional rain

October marks the end of the rainy season in Bangladesh. Rainfall decreases significantly, but occasional showers still occur. The weather begins to cool slightly, especially in the evenings and mornings, though daytime temperatures remain warm. The humidity starts to drop, making the weather more comfortable.

Regional Differences

• Northern Bangladesh: Warm with occasional rain, temperatures between 24-31°C (75-88°F)
• Central Bangladesh: Warm and humid, with temperatures around 25-32°C (77-90°F)
• Southern Bangladesh: Warm with occasional showers, temperatures between 25-32°C (77-90°F)

October is a good month for travel, as the rains have mostly subsided and the weather becomes more comfortable for outdoor activities and sightseeing.

November

General Overview

• Average temperature: 18-29°C (64-84°F)
• Rainfall: Dry season begins, minimal rainfall

November is the start of the cool, dry season in Bangladesh. Temperatures drop, especially in the northern regions, and humidity levels decrease. The weather is pleasant, with clear skies and mild temperatures, making it an ideal time for travel and outdoor activities across the country.

Regional Differences

• Northern Bangladesh: Cool and dry, with temperatures between 18-26°C (64-79°F)
• Central Bangladesh: Mild and dry, with temperatures around 20-29°C (68-84°F)
• Southern Bangladesh: Warm and dry, with temperatures between 21-30°C (70-86°F)

November is one of the best months to visit Bangladesh, with comfortable temperatures and little to no rain, perfect for exploring cities, rural areas, and natural attractions.

December

General Overview

• Average temperature: 12-26°C (54-79°F)
• Rainfall: Dry and cool, no significant rainfall

December is one of the coolest months in Bangladesh, with temperatures dropping significantly, especially in the northern regions. The weather is dry, and skies are clear, making it a perfect time for travel and outdoor activities. The southern regions remain warmer, but overall, the climate is comfortable across the country.

Regional Differences

• Northern Bangladesh: Cool and dry, with temperatures between 12-23°C (54-73°F)
• Central Bangladesh: Mild and dry, with temperatures around 14-25°C (57-77°F)
• Southern Bangladesh: Warm and dry, with temperatures between 16-26°C (61-79°F)

December is an excellent month for travel, as the weather is cool, dry, and comfortable, making it ideal for sightseeing, trekking, and beach activities in Cox’s Bazar.

Summary of Bangladesh’s Climate by Region

Northern Bangladesh (Rangpur, Rajshahi)

• Best months: November to February (cool and dry)
• Hottest months: March to May (very hot, with temperatures over 35°C/95°F)

Central Bangladesh (Dhaka, Sylhet)

• Best months: November to February (mild and dry)
• Rainy season: June to September (heavy rains and high humidity)

Southern Bangladesh (Chittagong, Cox’s Bazar)

• Best months: November to February (warm and dry)
• Monsoon season: June to September (heavy rains, occasional flooding)

Bangladesh’s climate is characterized by a tropical monsoon system with distinct dry and wet seasons. The best time to visit the country is between November and February, when temperatures are cooler, humidity is lower, and there is little to no rainfall. The summer months bring extreme heat, while the monsoon season (June to September) is marked by heavy rains and potential flooding, making travel more challenging. However, each season offers unique experiences for visitors, from the verdant monsoon landscapes to the pleasant, cool winter weather.