Last updated: August 21, 2025
Experience the vibrant September weather of Dhaka, Bangladesh, where temperatures soar to a maximum of 37°C (98°F), while the average settles at a balmy 29°C (85°F), and rarely dips below 25°C (77°F). This month is characterized by significant rainfall, with an impressive 223 mm (8.8 in) spread over 24 days, leading to a humidity level of 82% that envelops the city in a warm embrace. Whether you're exploring the bustling streets or enjoying the lush landscapes, September presents a unique blend of tropical heat and refreshing showers, making it an exciting time to experience Dhaka's dynamic climate.
In September, Dhaka experiences a transitional phase in its climate as the monsoon season begins to ebb. The temperatures are quite warm, with minimums around 25°C (77°F) and maximums reaching up to 37°C (98°F), creating a consistent average of 29°C (85°F). This month showcases a slight decline in rainfall from the preceding months, yet the humidity lingers, often making the heat feel more intense. As the city moves toward October, the shift in temperatures and weather patterns becomes palpable, paving the way for cooler days ahead. Overall, September stands out as a month of significant warmth amidst the gradual transition to a more temperate climate.
September in Dhaka marks a significant transition in the monsoon season, as the city experiences a substantial precipitation total of 223 mm (8.8 in) over 24 days of rain. This downpour is a slight decrease from the heavier rains in previous months like June and July, which recorded 403 mm and 323 mm respectively. However, September’s rain still plays a crucial role in sustaining the lush greenery that characterizes the city. With the monsoon winding down, the frequency of rainy days can be contrasted with earlier months, where nearly every day was drenched. As the month progresses, the rainfall begins to taper off, setting the stage for a gradual transition into the drier months ahead while leaving behind a rejuvenated landscape.
In September, Dhaka experiences a significant rise in humidity, reaching 82%, making it one of the most humid months of the year. This trend follows a gradual increase from a more comfortable 41% in March, with levels steadily climbing as the summer progresses, spiking to 81% in July and 78% in August. The transition into September marks a peak in humidity that can be quite stifling, often leaving residents feeling the heavy embrace of the monsoon season. As October approaches, humidity levels begin to decrease slightly, hinting at the shift towards drier months ahead, yet September's sweltering atmosphere serves as a reminder of the region's tropical climate.
In September, Dhaka experiences a UV Index of 12, classified as extreme, with a burn time of just 10 minutes. This month marks a slight decrease from the peak of 13 seen in the previous four months, but the intensity remains significantly high. It's part of a broader trend where the UV levels surge from the moderate exposure in January, escalating through various phases of intensity into the summer months. As the rainfall begins to taper off, September still demands cautious sun protection. As the year progresses toward October, the UV Index begins to slowly decline but remains within the extreme range. To stay updated on UV levels and ensure skin safety, check out the latest information at Dhaka UV Index.
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September in Dhaka, Bangladesh, welcomes a gentle transition from the sweltering summer months, boasting an impressive 279 hours of sunshine. This marks a slight decline from the sun-drenched days of August, which recorded 287 hours, yet it still contributes to the city’s vibrant atmosphere. As the year progresses, sunlight begins to moderate, with the sunny profile peaking in March at 325 hours before gradually tapering off. While September’s hours are less than the summer peak, they remain significantly bright compared to the winter months, promising a delightful balance of warmth and ease as the landscape prepares for the cooler days ahead. This trend of gradually diminishing sunlight reminds us of the seasonal rhythms that define life in Dhaka, making every sunlit moment in September truly cherished.
As September rolls into Dhaka, Bangladesh, the likelihood of sunny weather takes a noticeable dip, with an estimated 15% chance of sunshine. This shift is part of a larger trend that sees the sunniest months of the year concentrated in the early part, from January to April, where chances soar above 70%. By May, the sunshine begins to wane, leading into the monsoon season characterized by dramatically lower probabilities of clear skies, particularly in June and July. After the heavy rains of the summer, September's weather remains predominantly overcast, offering only fleeting moments of sunshine as the region transitions into more stable conditions in October. Thus, while September marks a departure from the sun-drenched days of earlier months, it serves as a transitional phase before brighter days return.
As September unfolds in Dhaka, Bangladesh, the city enjoys about 12 hours of daylight, maintaining the steady pattern established through the summer months of June to August. This consistent daylight duration comes after a gradual increase from January's 10 hours, peaking at an impressive 13 hours in May and June. As the city transitions into autumn, daylight begins its slow descent, hinting at the shorter days of October and November ahead. September serves as a gentle bridge, offering a perfect balance of sunlight as the lush greenery of monsoon gives way to the drier season, creating a harmonious backdrop for daily life in the vibrant capital.
As September arrives in Dhaka, the average wind speed settles at 2.1 m/s (5 mph), reflecting a gentle shift in the city's climatic rhythm. Following the notable uptick in wind during the earlier monsoon months of June and July, which recorded peaks of 3.5 m/s (8 mph) and 3.2 m/s (7 mph) respectively, September marks a gradual decline to levels seen earlier in the year. This return to more moderate breezes offers a refreshing respite as the city transitions from the wet season, setting the stage for the drier, calmer months ahead. Notably, September's winds echo those of February and March, reminding us of the seasonal cycles that define life in this vibrant metropolis.
Weather in Dhaka varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Dhaka, focusing on differences in temperature, rainfall, humidity, and UV levels.
September and January present striking contrasts in weather. September boasts high temperatures averaging around 29°C (85°F), with daily maximums reaching up to 37°C (98°F), alongside heavy rainfall of 223 mm spread over 24 days and high humidity at 82%. In stark contrast, January features a much cooler climate, with average temperatures around 18°C (65°F), and daytime highs topping out at 29°C (85°F). Noteworthy is the dry spell in January, with only 3 mm of precipitation over the month and virtually no rainy days, resulting in a much lower humidity level of 57%. To learn more about January weather specifics, you can visit Dhaka weather in January.
September and February present strikingly different weather conditions. In September, temperatures are warm, with a minimum of 25°C (77°F) and an average of 29°C (85°F), reaching a maximum of 37°C (98°F). This month is also characterized by high humidity at 82% and significant rainfall, totaling 223 mm (8.8 in) over 24 days. In contrast, February is much cooler, with temperatures ranging from a minimum of 9°C (48°F) to an average of 21°C (70°F) and occasional highs up to 34°C (93°F). Precipitation is minimal during this month, only 9 mm (0.4 in) over just one day, and humidity drops to 50%. For a deeper dive into February's weather specifics, check out Dhaka weather in February.
September and March present strikingly different weather conditions. In September, temperatures range from a minimum of 25°C (77°F) to a maximum of 37°C (98°F), with a high average of 29°C (85°F). Additionally, September is characterized by significant rainfall, receiving about 223 mm (8.8 in) over 24 days, resulting in a humid atmosphere with an average humidity of 82%. In contrast, March enjoys a milder climate, with temperatures ranging from a minimum of 13°C (56°F) to a maximum of 36°C (97°F) and an average of 26°C (79°F). The precipitation in March is considerably lower, at 41 mm (1.6 in) over just 7 days, leading to a much drier environment with a humidity level of 41%. For more details on March weather, visit Dhaka weather in March.
September and April in Dhaka display notable differences in weather patterns. September is characterized by higher humidity levels at 82%, with average temperatures around 29°C (85°F), while April tends to be drier, with humidity dropping to 45% and similar average temperatures of 28°C (83°F). Although April can reach a maximum of 38°C (101°F), September's maximum temperature often hovers around 37°C (98°F). Precipitation is also a factor to consider; September experiences more rainfall at 223 mm (8.8 in) over 24 days, compared to April's 206 mm (8.1 in) over just 15 days. For detailed insights, you can visit Dhaka weather in April.
In comparing the weather of September and May, both months share a similar average high temperature of 29°C (84°F), with maximum temperatures soaring up to 37°C (98°F). However, September tends to be slightly warmer, with minimum temperatures averaging 25°C (77°F) compared to May's 20°C (68°F). Precipitation is more prominent in May, with 266 mm (10.5 in) over 21 days, while September experiences 223 mm (8.8 in) across 24 days, indicating that rainfall is frequent yet less intense during September. Additionally, the humidity in September averages around 82%, making it feel more oppressive than May’s lower average of 69%. For more detailed information on May weather, you can visit Dhaka weather in May.
When comparing the weather in September to that of June, we can see some notable differences. Both months have a similar average temperature of around 29°C (85°F), but September experiences slightly higher maximum temperatures, reaching up to 37°C (98°F), compared to June's peak of 36°C (97°F). Humidity levels in September are notably higher at 82%, while June has a somewhat more comfortable humidity of 72%. However, September sees significantly more precipitation, with 223 mm (8.8 in) over 24 days, compared to June’s 403 mm (15.9 in) over 27 days. For more in-depth details about June weather in Dhaka, you can check Dhaka weather in June.
In comparing the weather of September and July, we find that both months have similar temperature ranges, with minimums at 25°C (77°F), averages around 29°C (85°F), and maximums nearing 37°C (98°F) in September and 99°F in July. However, July tends to be wetter, receiving 323 mm (12.7 in) of precipitation over 28 days, while September sees slightly less rain with 223 mm (8.8 in) across 24 days. Humidity levels are quite comparable, with September at 82% and July at 81%. For more detailed insights, you can check out Dhaka weather in July.
In comparing the weather of September to August, both months maintain similar average temperatures around 29°C (85°F), but September sees slightly higher maximum temperatures, reaching up to 37°C (98°F) compared to August's maximum of 36°C (97°F). However, September experiences a decrease in overall precipitation, with 223 mm (8.8 in) over 24 days, while August has a higher total of 252 mm (9.9 in) across 28 days. Additionally, humidity in September is slightly higher at 82% compared to August's 78%. For more detailed information on the weather during August, you can visit Dhaka weather in August.
In September, the weather is characterized by higher temperatures, with a minimum of 25°C (77°F) and an average of 29°C (85°F), peaking at a scorching 37°C (98°F). The month sees significant rainfall, totaling 223 mm (8.8 in) over 24 days, coupled with high humidity at 82%. In contrast, October brings slightly cooler conditions, with a minimum temperature of 20°C (69°F) and an average of 28°C (83°F). The maximum temperature remains similar at 36°C (98°F). Rainfall decreases to 179 mm (7.1 in) over just 15 days, and humidity also drops to 78%. For more details, you can explore Dhaka weather in October.
September and November exhibit stark contrasts in weather patterns. In September, temperatures soar with a minimum of 25°C (77°F) and can peak at a scorching 37°C (98°F), accompanied by high humidity levels of 82%. This month also sees significant rainfall, averaging 223 mm (8.8 in) over 24 days, creating a sultry atmosphere. In contrast, November brings a refreshing change with cooler temperatures ranging from a minimum of 15°C (59°F) to a maximum of 33°C (91°F). The month is much drier, with only 28 mm (1.1 in) of precipitation spread across just 2 days and a reduction in humidity to 68%. For more detailed information about November weather, you can visit Dhaka weather in November.
In September, Dhaka experiences a hot and humid climate, with average temperatures ranging from a minimum of 25°C (77°F) to a maximum of 37°C (98°F). The month is marked by significant rainfall, averaging 223 mm (8.8 in) over 24 days, and high humidity levels at 82%. In contrast, December brings a much cooler and drier environment, with temperatures ranging from a low of 10°C (50°F) to a high of 30°C (87°F). Precipitation drops significantly to just 55 mm (2.2 in) over only 2 days, and humidity decreases to 64%. This stark difference highlights the transition from the sweltering, wet conditions of September to the pleasantly cool and dry weather typical of December. For more details, check out Dhaka weather in December.
As September unfolds in Dhaka, the weather transitions into a hot and humid phase, characterized by a notable increase in precipitation. With high humidity levels reaching 82%, the city experiences frequent downpours across approximately 24 days of the month, contributing to a significant rainfall total. Comparatively, this makes September one of the wettest months of the year, often marked by swinging temperatures that oscillate from a scorching maximum of 37°C to a comforting minimum of 25°C. This combination of heat and rain differentiates September from the drier, cooler months that precede it, creating a unique climate that can be both challenging and invigorating. For detailed insights into weather patterns, visit Dhaka Climate.