Last updated: January 18, 2025
Dhaka, Bangladesh, exhibits a tropical wet and dry climate classified under the Köppen-Geiger Aw category. Throughout the year, the city experiences significant temperature fluctuations, with a minimum of 8°C (46°F) in February, an average of 26°C (79°F), and peak temperatures soaring to 39°C (103°F) in April. This climatic profile not only shapes the urban landscape and lifestyle of Dhaka's residents but also influences agricultural practices and economic activities in the region.
Dhaka, Bangladesh, experiences a distinct seasonal temperature pattern characterized by warm winters and hot summers. In January and February, the temperatures are relatively mild, with minimums around 8°C (46°F) and averages reaching 21°C (70°F) in February. As spring progresses into March and April, the heat intensifies, with maximums peaking at 39°C (103°F) in April, signaling the onset of the hot season. May continues this trend, maintaining high temperatures before the monsoon rains arrive in June, when the minimums rise to 23°C (74°F) but averages remain steady. Throughout July and August, the temperatures stabilize, with maximums hovering around 38°C (100°F) amidst the humid conditions. As the year transitions to autumn, temperatures gradually cool, with notable drops in November and December, bringing minimums to 9°C (49°F) and marking the return of cooler, more comfortable weather.
In the region, Sonargaon experiences a minimum temperature of 9°C (48°F) in January, rising to a maximum of 38°C (101°F) in April, as detailed in the monthly temperatures in Sonargaon. Narayanganj shows a slightly warmer minimum of 10°C (50°F) in January, peaking at 38°C (100°F) in April, according to the monthly temperatures in Narayanganj. Similarly, Dhaka shares the same January minimum of 9°C (48°F) and reaches a high of 38°C (101°F) in April, as noted in the monthly temperatures in Dhaka.
Dhaka, Bangladesh, experiences a pronounced precipitation pattern that is tightly linked to its tropical climate. The year begins dry, with only 3 mm (0.1 in) of rain in January, followed by a slight increase to 9 mm (0.3 in) in February. As the temperatures rise in March, rainfall begins to intensify, reaching 43 mm (1.7 in), but it is in April that the city encounters significant precipitation, accumulating 201 mm (7.9 in) over approximately 15 days. May continues this trend, often marking the onset of the monsoon season with 276 mm (10.9 in) of rainfall, contributing to a humid atmosphere.
The monsoon months of June through September bring the highest rainfall, peaking at 400 mm (15.7 in) in June, followed by substantial amounts in July (330 mm) and August (252 mm). September sees a gradual decline in precipitation, although rainfall remains significant at 226 mm. October marks the tapering off of the monsoon, with rainfall decreasing to 175 mm (6.9 in). The year closes with much drier conditions in November and December, where rainfall reduces sharply to 30 mm (1.2 in) and 52 mm (2.0 in), respectively, as the city transitions back into a drier season.
In Dhaka, Bangladesh, the duration of sunshine showcases a clear seasonal trend that aligns with the region's tropical climate. Beginning with winter, January offers 238 hours of sunshine, gradually increasing to 282 hours in February as the days lengthen. March marks a notable rise with 325 hours of sunlight, reaching the peak of the dry season. Although April experiences a slight decrease to 313 hours, May maintains good sunlight levels at 314 hours, indicating that the city enjoys considerable daylight as it transitions into the monsoon period.
As the monsoon arrives in June, sunshine hours drop significantly to 264 hours, with July and August following closely with 263 hours and 283 hours, respectively. Despite the persistent rainfalls characteristic of these months, Dhaka still benefits from a fair amount of sunshine. As the year progresses into the post-monsoon season, conditions begin to improve, with September seeing 276 hours of sunlight, and October reaching 290 hours. The year ends with November and December retaining a healthy 286 hours and 278 hours of sunshine respectively, illustrating that while the summer months may dominate in total hours, the city experiences substantial daylight throughout the year.
The UV Index in Dhaka, Bangladesh, exhibits a marked seasonal variation, reflecting the intense solar radiation that the region experiences, particularly during the summer months. Starting in January, the UV Index registers at 6, categorized as high, indicating a burn time of 25 minutes. As February approaches, there is a significant increase to 8, categorized as very high, and by March, the UV exposure escalates to 9. April sees a further rise to 10, highlighting the increasing intensity of sunlight as the city moves towards the peak of the pre-monsoon heat, where the risk of skin damage is heightened.
As the monsoon season sets in, the UV Index remains alarmingly high, with values peaking at 13 from May to August, classified as extreme. During this period, the burn time diminishes to just 10 minutes, underscoring the crucial need for sun protection. Even as the monsoon gradually subsides in September and October, the UV values remain elevated at 12 and 11, respectively. The year rounds off with November reverting to a moderate 8, while December returns to 6, reflecting a decrease in overall sun exposure. It is essential for residents and visitors to be mindful of these fluctuations throughout the year to effectively manage sun safety and minimize UV-related health risks.
UV Risk Categories
In Dhaka, Bangladesh, daylight duration shows a clear progression throughout the year, influenced by the region's tropical climate. January begins with about 10 hours of daylight, gradually increasing to 11 hours in February as the days start to brighten. March marks a significant uptick, offering 12 hours of daylight, and this duration sustains through April. The trend continues to rise in May, reaching 13 hours, which is maintained through June and July, providing ample sunlight during the warm months.
As the year progresses, daylight hours begin to taper off. In August, the duration decreases to 12 hours, and September continues to offer a similar amount as the monsoon season winds down. October sees a further reduction to 11 hours, paving the way for the return of shorter days in November and December, which both see just 10 hours of daylight. Overall, this pattern reflects the natural rhythm of daylight hours in Dhaka, with the longest days occurring during the midsummer months, while the winter months experience a return to shorter daylight durations.
Dhaka, Bangladesh experiences a tropical monsoon climate characterized by high temperatures and substantial rainfall, particularly from April to September. January temperatures range from a minimum of 9°C (48°F) to a maximum of 29°C (85°F), while June typically sees heavier rainfall, averaging 403 mm (15.9 in). The city enjoys abundant sunshine, especially in March with 325 hours, but this declines during the monsoon months. For more details, visit Dhaka climate.
Narayanganj, Bangladesh experiences a tropical climate with distinct wet and dry seasons. Temperatures range from a cool 10°C (50°F) in January to a hot 38°C (100°F) in April, with averages peaking around 29°C (85°F) during the summer months. The monsoon season from June to September brings significant rainfall, with June receiving the highest at 382 mm (15.1 in). The region enjoys ample sunshine, particularly from February to May, averaging over 300 hours per month. For more details, visit Narayanganj climate.
The climate in Sonargaon, Bangladesh, is characterized by distinct seasonal variations, with warm to hot temperatures throughout the year. January starts with cooler temperatures, ranging from a minimum of 9°C (48°F) to a maximum of 29°C (85°F), while April and May experience peak heat, with maximums reaching up to 38°C (101°F). The region sees significant rainfall during the monsoon months, particularly in June, which records up to 403 mm (15.9 in) of precipitation. Despite the rain, sunshine is abundant, especially in March and May, with over 300 hours of sun each month. For more detailed information, visit Sonargaon climate.
Tangail, Bangladesh experiences a tropical climate characterized by distinct wet and dry seasons. Temperatures range from a chilly 8°C (46°F) in January to a warm 38°C (101°F) in April, with the humidity peaking during the monsoon months of June to September, where precipitation can exceed 300 mm. The region enjoys ample sunshine, peaking at 329 hours in March. Rainfall is heaviest from May to July, significantly impacting the environment and agriculture. For more detailed information, visit Tangail climate.
The climate in Tungipara, Bangladesh is characterized by significant temperature variations throughout the year, with January temperatures ranging from a cool 9°C (48°F) to a warm 30°C (86°F). The hottest months are April and May, experiencing maximum temperatures of 38°C (101°F) and 38°C (100°F), respectively. Precipitation increases markedly from March, peaking during the monsoon months of June and July with over 360 mm (14.2 in) of rain. The region enjoys substantial sunshine, especially in March and May, with around 320 hours of sunlight. For more details, visit Tungipara climate.
In summary, the climate of Dhaka, Bangladesh, is characterized by its tropical nature, marked by distinct seasonal variations in temperature, precipitation, sunlight, UV Index, and daylight duration. The city experiences warm winters and sweltering summers, with ample rainfall during the monsoon months, while sunshine hours peak in the dry season. The UV Index indicates significant solar exposure, particularly during mid-year, necessitating sun protection for residents and visitors alike. Additionally, daylight duration fluctuates throughout the year, with longer days in summer and shorter days in winter. Understanding these climatic patterns is essential for urban planning, agricultural practices, and public health initiatives, ensuring that the vibrant city of Dhaka can effectively navigate its seasonal challenges.