Last updated: August 21, 2025
In September, Sonargaon, Bangladesh experiences a warm and humid climate, with maximum temperatures reaching up to 37°C (98°F) and an average of 29°C (85°F). The month sees a considerable amount of rainfall, totaling 223 mm (8.8 in) over 24 precipitation days, contributing to the area's lush greenery. With humidity levels hovering around 82%, the atmosphere is notably muggy, making for a distinctive tropical experience. Visitors should brace for frequent showers while enjoying the vibrant beauty that this seasonal weather nurtures.
In September, temperatures in Sonargaon, Bangladesh begin to reflect the transition from the sweltering summer to the cooler months ahead. With a minimum of 25°C (77°F) and a maximum soaring to 37°C (98°F), the month maintains a warm atmosphere, while the average remains stable at 29°C (85°F). This steady warmth is characteristic of the late monsoon season, creating a balmy environment perfect for exploring the region's rich heritage. As the month progresses, particularly hot days are often accompanied by refreshing rains, providing a welcome respite from the heat and setting the stage for the more temperate months to follow. Overall, September serves as a vibrant bridge in Sonargaon’s climatic journey.
In September, Sonargaon experiences a notable transition as the monsoon season lingers, contributing to 223 mm (8.8 in) of rainfall over 24 days. This amount, while slightly lower than the deluges of previous months, still signifies a substantial presence of moisture in the atmosphere, sustaining the lush landscapes characteristic of this region. The rainfall begins to taper off, marking a trend towards drier conditions in October. This gradual decrease in both precipitation and rainy days reflects the cyclical nature of Sonargaon's climate, as it prepares for the upcoming months with substantially lower precipitation levels. The persistent rain in September continues to replenish water sources and nourish the soil, ensuring the area remains vibrant as it transitions towards the cooler, drier autumn period ahead.
In Sonargaon, Bangladesh, September marks a notable peak in humidity, reaching 82%, which is part of a broader trend of increasing moisture throughout the monsoon season. As the year progresses from the relatively dry months of January and February, where humidity hovers around 57% and 50% respectively, the air becomes increasingly saturated, culminating in the highest levels recorded in September. This month, along with July and August, showcases the intense humidity that characterizes the region's tropical climate, making it feel particularly heavy and damp. As October approaches, humidity remains elevated at 78%, hinting at the lingering effects of the rainy season before gradually subsiding into the drier months ahead. The ebb and flow of humidity levels throughout the year not only shape local weather patterns but also influence daily life in this vibrant locale.
As the month of September unfolds in Sonargaon, Bangladesh, residents and visitors alike should be prepared for an extreme UV Index of 12, which translates to a rapid burn time of just 10 minutes under the sun. This level of UV exposure, while slightly lower than the peak seen in the summer months of June through August, still emphasizes the need for vigilant sun protection. Notably, as the year progresses, the UV Index tends to peak during the hotter months, with March to August displaying values of 9 or above. By October, the UV Index remains high at 11, indicating that although the sweltering summer may be shifting, the potential for harmful sun exposure persists. Staying informed about these trends is crucial for maintaining skin health—discover more about the UV Index in the region at Sonargaon UV Index.
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In Sonargaon, Bangladesh, the arrival of September marks a transition into autumn, showcasing a delightful balance in sunlight hours. With an impressive 279 hours of sunshine, September stands as a stone's throw away from the brighter days of April and May, which are the sunniest months with 315 and 317 hours, respectively. Following a somewhat cloudy summer, where June and July dipped below the 270-hour mark, September emerges as a refreshing return to decent light. This pattern hints at a consistent trend where late summer and early fall reassure residents and visitors alike that the warm embrace of the sun remains ever-present, as it gently wanes toward the end of the year.
In Sonargaon, Bangladesh, September marks a notable shift in weather patterns, with the likelihood of sunny days dipping to a modest 15%. This decline follows a stark contrast to the sun-soaked months of January and February, which enjoy chances of sunshine at 84% and 85%, respectively. As summer transitions into the monsoon season, the sunshine probability tumbles, particularly in June and July where it plummets to a mere 12% and 4%. By September, while the chance for clear skies remains limited, it does offer a glimpse of respite after the heavy rains of the preceding months. This sets the stage for October's resurgence, where sunny weather climbs back to 53%, hinting at a gradual return of the golden rays as the year winds down.
As the month of September arrives in Sonargaon, Bangladesh, daylight lingers for approximately 12 hours, mirroring the longer days of late spring and summer. The gradual increase in daylight hours from January's 10 hours to May's peak of 13 hours signifies the approach of the vibrant monsoon season, allowing for abundant natural light. This extended daylight begins to wane in October, dropping back to 11 hours, signaling the transition into shorter days as the year progresses toward winter. Overall, September offers a harmonious blend of warm, sunny days, perfectly encapsulating the tail end of the lush rainy season, before the gradual retreat of daylight in the months ahead.
As September arrives in Sonargaon, Bangladesh, the gentle caress of the wind shifts to an average speed of 2.1 m/s (5 mph), echoing the transitional essence of early autumn. Following a mild summer where winds peaked in June at 3.5 m/s (8 mph), the breeze starts to calm, reminiscent of the vibrant monsoon season that precedes it. With a consistent trend of decreasing wind speeds from June to September, this month signifies a return to a more serene atmosphere, inviting residents to embrace the settling air and soothe their senses. As we look ahead to October, expect a further softening, with average wind speeds dipping slightly to 1.8 m/s (4 mph), heralding the gentle embrace of fall in this historic region.
Weather in Sonargaon varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Sonargaon, focusing on differences in temperature, rainfall, humidity, and UV levels.
September and January present two starkly contrasting weather patterns. In September, temperatures soar with a minimum of 25°C (77°F) and an average of 29°C (85°F), reaching highs of up to 37°C (98°F). This month is also marked by significant rainfall, with 223 mm (8.8 in) of precipitation occurring over 24 days and high humidity at 82%. In contrast, January offers a much cooler climate, featuring a minimum temperature of 9°C (48°F) and an average of 18°C (65°F), with maximums reaching 29°C (85°F). Rainfall is virtually nonexistent in January, with only 3 mm (0.1 in) recorded over no rainy days and humidity dropping to 57%. For a more detailed look at January conditions, you can check out Sonargaon weather in January.
In September, the weather is marked by significantly higher temperatures, with minimums of 25°C (77°F) and averages reaching 29°C (85°F), peaking at 37°C (98°F). This month is characterized by high humidity at 82% and frequent rainfall, with 223 mm (8.8 in) of precipitation over 24 days. In contrast, February offers a much milder climate, featuring minimum temperatures of 9°C (48°F) and average highs of 21°C (70°F), with a maximum of 34°C (93°F). Precipitation in February is minimal, with only 9 mm (0.4 in) recorded over just 1 day, and humidity levels drop to a more comfortable 50%. For a more detailed look at February weather specifics, check Sonargaon weather in February.
When comparing the weather in September and March, a stark contrast emerges. September boasts higher temperatures, with averages around 29°C (85°F) and a maximum reaching 37°C (98°F), while March offers a milder average of 26°C (79°F), with a peak of 36°C (97°F). Additionally, September is characterized by its high humidity at 82% and significant rainfall, accumulating 223 mm (8.8 in) over 24 days, making it a much wetter month. In contrast, March experiences far less precipitation, with only 41 mm (1.6 in) across 7 days and humidity levels dropping to 41%. For a detailed look at March weather, you can visit Sonargaon weather in March.
In September, the weather is characterized by warmer temperatures, with daily averages around 29°C (85°F) and maximums reaching up to 37°C (98°F). The month experiences significant rainfall, accumulating 223 mm (8.8 inches) across 24 days, coupled with high humidity levels averaging 82%. In contrast, April offers milder conditions, with minimum temperatures of 18°C (65°F) and an average of 28°C (83°F), although it can peak at a scorching 38°C (101°F). Precipitation is lower in April, totaling 206 mm (8.1 inches) over just 15 days, and humidity drops to a more comfortable 45%. For a detailed look at April's conditions, check out Sonargaon weather in April.
In comparing the weather conditions of September and May, both months showcase a similar average temperature of around 29°C (84°F), with maximums reaching up to 37°C (98°F). However, September tends to be slightly warmer at a minimum of 25°C (77°F), compared to May's 20°C (68°F). Rainfall is more pronounced in May, with total precipitation of 266 mm (10.5 in) over 21 days, while September experiences 223 mm (8.8 in) spread across 24 days. Additionally, September has a higher humidity level of 82%, contrasted with May's more comfortable 69%. For more detailed insights, check out Sonargaon weather in May.
September and June share similar average temperatures, both around 29°C (85°F), but they differ significantly in precipitation and humidity levels. September has slightly higher maximum temperatures reaching up to 37°C (98°F) compared to June's 36°C (97°F). However, June experiences more rainfall, with 403 mm (15.9 in) over approximately 27 days, while September sees 223 mm (8.8 in) across 24 days. Additionally, September is more humid at 82%, in contrast to June's 72% humidity. For a more detailed look at June weather, you can check Sonargaon weather in June.
In comparing the weather between September and July, both months experience similar temperature ranges, with minimum temperatures around 25°C (77°F) and average temperatures of 29°C (85°F). However, July tends to be slightly warmer, peaking at a maximum of 37°C (99°F) compared to September's 37°C (98°F). Precipitation is notably higher in July, with 323 mm (12.7 in) falling over 28 days, while September sees 223 mm (8.8 in) of rainfall over 24 days. Humidity levels are quite comparable, with July at 81% and September at 82%. For a detailed look at July's weather, you can check Sonargaon weather in July.
In comparing the weather between September and August, we see both similarities and differences. Both months feature an average temperature of 29°C (85°F); however, September experiences slightly cooler nights with a minimum temperature of 25°C (77°F) compared to August's 26°C (79°F). In terms of precipitation, September has a total of 223 mm (8.8 in) over 24 days, while August sees a higher total of 252 mm (9.9 in) across 28 days. Additionally, September's humidity is marginally higher at 82%, compared to August's 78%. For more detailed insights, you can check the Sonargaon weather in August.
September and October exhibit noticeable differences in weather patterns. In September, the temperature ranges from a minimum of 25°C (77°F) to a maximum of 37°C (98°F), with an average of 29°C (85°F). The month is marked by high humidity at 82% and substantial precipitation, totaling 223 mm (8.8 in) over 24 days. In contrast, October sees slightly cooler temperatures, with a minimum of 20°C (69°F) and a maximum of 36°C (98°F), averaging 28°C (83°F). The precipitation decreases to 179 mm (7.1 in) over just 15 days, and humidity falls to 78%. For more detailed weather insights, you can check Sonargaon weather in October.
September and November weather exhibit significant differences in temperature and precipitation patterns. In September, the temperatures are markedly warmer, with a minimum of 25°C (77°F) and an average of 29°C (85°F), reaching a maximum of 37°C (98°F). The month is also characterized by high humidity at 82% and substantial rainfall, accumulating 223 mm (8.8 in) over 24 days. In contrast, November experiences a cooler climate, with minimum temperatures dropping to 15°C (59°F) and an average of 24°C (75°F), peaking at 33°C (91°F). Additionally, November sees much less precipitation, only 28 mm (1.1 in) over just 2 days, and lower humidity at 68%. For more detailed information, you can check out Sonargaon weather in November.
In September, the weather is characterized by high temperatures, with a minimum of 25°C (77°F) and an average of 29°C (85°F), reaching a maximum of 37°C (98°F). The month also experiences significant rainfall, totaling 223 mm (8.8 in) over 24 days, contributing to a high humidity level of 82%. In contrast, December offers a much cooler climate, with temperatures ranging from a minimum of 10°C (50°F) to an average of 20°C (67°F), peaking at 30°C (87°F). The precipitation drops significantly to just 55 mm (2.2 in) over only 2 days, and the humidity decreases to 64%. This shift in weather makes December a much drier and more comfortable month compared to the humid and rainy conditions of September. For more details, you can check the Sonargaon weather in December.
As September arrives in Sonargaon, the weather showcases a notable shift, embracing the final throes of the monsoon season. With average temperatures hovering around 29°C (85°F), days can still feel intense with peak highs reaching 37°C (98°F). However, it's the high humidity levels at 82% and nearly continuous rainfall—224 mm over 24 days—that set this month apart from the dryer, hotter months preceding it. This combination creates a humid, tropical atmosphere that can be both refreshing and challenging. By understanding these distinctive climatic features, visitors and residents alike can better prepare for their September adventures. For more insights on weather patterns throughout the year, check out Sonargaon Climate.