Last updated: August 21, 2025
In September, the weather in Khulna, Bangladesh reveals a mix of warmth and humidity, with maximum temperatures soaring up to 36°C (96°F) and an average of around 29°C (85°F), while the minimum dips to 25°C (77°F). This month is characterized by high humidity levels reaching approximately 86%, creating a muggy atmosphere. Rainfall plays a significant role, with an impressive 233 mm (9.2 in) of precipitation spread over 26 days, making September one of the wetter months in Khulna. The combination of heat and frequent rains shapes a unique tropical experience for residents and visitors alike.
In September, Khulna, Bangladesh, experiences warm and humid conditions as the monsoon begins to wane. The temperatures are characterized by a minimum of 25°C (77°F) and an average of 29°C (85°F), peaking at a maximum of 36°C (96°F). This month signifies a slight dip in the extreme heat compared to the peak summer months, yet it remains consistently warm, hovering around the high twenties. Humidity levels are still elevated, making the atmosphere feel lively and vibrant, as the region transitions into the drier autumn months ahead. Overall, September serves as a bridge, melding the remnants of summer warmth with the promise of cooler days to come.
September in Khulna, Bangladesh marks a significant transition in the monsoon season, with an impressive 233 mm (9.2 in) of rainfall spread over 26 days. This substantial precipitation, while lower than the preceding months of July (356 mm) and August (300 mm), continues the trend of abundant rain that characterizes the region during the monsoon. As the month progresses, the frequency of rainfall begins to taper off, paving the way for October's decline to 154 mm. The consistent rainfall throughout these months not only supports agricultural activities but also highlights the pivotal role of the monsoon in sustaining Khulna's environment. Overall, September's weather serves as a reminder of the powerful monsoon dynamics at play, balancing both the lush greenery and the challenges of heavy rains.
In September, Khulna, Bangladesh, experiences a significant boost in humidity, maintaining an elevated level of 86% that mirrors the preceding month of August. This sustained humidity is part of a clear trend observed from the start of the year, where levels dip to a low of 30% in April before gradually climbing higher as the monsoon season approaches. After a brief respite in early spring, the humidity surges dramatically in the summer months, peaking in July and August, making September feel perpetually warm and sticky. As the year transitions into October, humidity begins to slide down, but September clearly stands out as one of the most humid months of the year, creating a lively backdrop for the lush greenery and vibrant life that characterize the region.
In September, Khulna experiences a notable UV Index of 12, categorizing it as an extreme exposure risk with a burn time of just 10 minutes. This trend follows a summer that has been dominated by high to extreme UV levels, peaking at 14 in August. While there is a slight decrease from the summer months, September still requires vigilance when it comes to sun protection. It's crucial to remain aware of the potential for harm, as the intensity of UV radiation remains significant. By observing these trends, residents and visitors can better prepare for outdoor activities during this time. For more detailed information on UV levels throughout the year, check out Khulna UV Index.
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In September, Khulna enjoys a delightful balance of sunshine, recording 275 hours of bright daylight. This marks a slight dip from the sun-drenched highs of late spring, where May boasts a robust 333 hours. As the region transitions into autumn, September's sunlight is still commendable, particularly when compared to earlier months like January and February, which feature significantly fewer hours of sunshine. The overall trend reveals that while the summer months deliver the most intense sunlight, September offers a comfortable and inviting atmosphere, making it a lovely time to experience Khulna's vibrant landscapes under the sun's gentle embrace.
In Khulna, Bangladesh, the likelihood of sunny weather experiences a significant decline as the year progresses, particularly during the monsoon months. Starting with an impressive 86% chance of sunshine in January, the probability gradually decreases, hitting a low of just 10% in September. This descent is marked by a stark contrast between the relatively sunny early months and the sultry monsoon, where July and August plummet to a mere 5% and 6% respectively. As September arrives, the lingering rain clouds dominate the skyline, offering little respite from the wet conditions. Fortunately, the trend begins to reverse in October, when the chance of sun rises to 49%, hinting at a welcome return to clearer skies as the region transitions into the drier months.
In September, Khulna, Bangladesh, experiences 12 hours of daylight, maintaining a balance as the sun sets on the warmer months. This month serves as a transition point, following the peak light of May through July, when daylight extended to a generous 13 hours. As autumn approaches, the hours gradually decrease, mirroring the slight dip seen in October and November. This seasonal shift not only marks a gradual retreat from summer’s long days but also signifies the start of a cooler period, where the dance between light and darkness continues its cyclical rhythm, embracing the rich changes of the future months.
As September unfolds in Khulna, Bangladesh, the average wind speed settles at a gentle 2.5 m/s (6 mph), a slight dip from the previous months of summer. This marks a transition from the breezy conditions of June and July, where winds peaked at around 3.2 m/s (7 mph), offering a refreshing respite from the heat. Notably, the winds begin to calm as the region progresses towards the cooler months, with October and November forecasted to experience even lighter breezes around 1.9 m/s (4 mph). September's winds, while lower than the summer's heights, still provide a comforting supplement to the balmy climate, hinting at the gradual shift towards the tranquil days of autumn.
Weather in Khulna varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Khulna, focusing on differences in temperature, rainfall, humidity, and UV levels.
In September, the weather is characterized by high temperatures, with minimums around 25°C (77°F) and averaging 29°C (85°F), peaking at a sweltering 36°C (96°F). This month sees a significant amount of rainfall—233 mm (9.2 in) spread over 26 days—coupled with high humidity levels at 86%. In contrast, January offers a much cooler climate, with temperatures ranging from a minimum of 10°C (50°F) to a maximum of 30°C (86°F) and an average of 18°C (65°F). Rainfall is minimal in January, totaling just 4 mm (0.2 in) over only 1 day, and the humidity drops significantly to 55%. For a detailed look at the January weather in Khulna, visit Khulna weather in January.
In September, the weather is characterized by warm temperatures, with a minimum of 25°C (77°F) and an average of 29°C (85°F), reaching a maximum of 36°C (96°F). This month is also quite rainy, accumulating 233 mm (9.2 in) of precipitation over 26 days, accompanied by high humidity at 86%. In contrast, February offers a much cooler climate with minimum temperatures around 10°C (50°F) and an average of 22°C (71°F), peaking at 34°C (93°F). The month sees minimal precipitation, only about 8 mm (0.3 in) on just 1 day, and lower humidity levels at 45%. For a more detailed look at February weather in Khulna, you can visit Khulna weather in February.
In comparing the weather between September and March, there are notable contrasts in temperature, precipitation, and humidity. September experiences a warm climate with average temperatures around 29°C (85°F) and highs reaching up to 36°C (96°F). However, it also brings significant rainfall, with 233 mm (9.2 in) of precipitation over 26 days and high humidity at 86%. In contrast, March offers a much drier environment, with an average temperature of 26°C (80°F) and minimal rainfall of just 37 mm (1.5 in) over 5 days, accompanied by a much lower humidity of 32%. This shift highlights March as a more comfortable month with clearer skies. For more details about the weather in March, you can visit Khulna weather in March.
In September, the weather is characterized by consistently high temperatures, with a minimum of 25°C (77°F) and an average of 29°C (85°F), peaking at 36°C (96°F). This month experiences significant rainfall, totaling 233 mm (9.2 in) over 26 days, combined with high humidity levels at 86%. Conversely, April sees a slightly cooler minimum temperature of 21°C (70°F) and a higher maximum of 39°C (102°F), but with much less precipitation—106 mm (4.2 in) over just 12 days and a much lower humidity at 30%. Overall, while both months share similar average temperatures, September is marked by wet and humid conditions, whereas April is hot and dry. For more specific details, you can refer to Khulna weather in April.
In comparing the weather patterns of September and May, we can see distinct differences in temperature and humidity levels. September enjoys a minimum temperature of 25°C (77°F) and averages around 29°C (85°F), with a maximum reaching 36°C (96°F). This month is characterized by high humidity at 86% and substantial rainfall, accumulating 233 mm (9.2 in) over 26 days. In contrast, May presents slightly milder conditions with a minimum of 22°C (72°F), an average of 30°C (86°F), and a peak of 38°C (101°F). Despite the higher maximum temperatures, May experiences lower humidity at 56% and significantly less rainfall, totaling 163 mm (6.4 in) over just 15 days. For more detailed information on the weather conditions during this month, you can visit Khulna weather in May.
September and June present contrasting weather patterns, with both months experiencing relatively high temperatures. In September, temperatures range from a minimum of 25°C (77°F) to a maximum of 36°C (96°F), with an average of 29°C (85°F). This month, however, is marked by significant rainfall, receiving 233 mm (9.2 in) over 26 days, coupled with high humidity at 86%. In contrast, June boasts slightly higher average temperatures, starting from a minimum of 25°C (78°F) and reaching as high as 38°C (101°F), averaging at 30°C (86°F). Notably, June sees more rainfall than September, with total precipitation of 355 mm (14.0 in) over 25 days, but the humidity remains lower at 60%. For a detailed look at June's weather, refer to Khulna weather in June.
When comparing the weather in September and July, we find that both months have similar average temperatures, fluctuating around 29°C (85°F) with maximum temperatures reaching up to 36°C (96°F in September and 98°F in July). However, July experiences higher rainfall, totaling 356 mm (14.0 in), occurring over 29 days, while September sees slightly less precipitation at 233 mm (9.2 in) over 26 days. Additionally, humidity levels are quite high in both months, but September is marginally more humid at 86%, compared to July's 84%. For a detailed look at July weather, you can visit Khulna weather in July.
In comparing the weather between August and September, both months exhibit similar average temperatures, with September recording a minimum of 25°C (77°F) and a maximum of 36°C (96°F), which is just slightly lower than August’s minimum of 26°C (79°F). However, September sees reduced precipitation, amounting to 233 mm (9.2 in) over 26 days compared to August's higher total of 300 mm (11.8 in) across 30 days. Interestingly, the humidity remains consistent in both months at 86%, indicating that while September is drier, it retains a similarly humid atmosphere. For more detailed information, you can explore Khulna weather in August.
In comparing the weather between September and October, September is characterized by slightly warmer temperatures, with minimums around 25°C (77°F) and an average of 29°C (85°F), while October sees a decrease in the minimum temperature to 20°C (68°F) and an average of 28°C (83°F). Both months share the same maximum temperature of 36°C (96°F), indicating a consistent peak heat. However, October brings a marked reduction in precipitation, dropping from 233 mm (9.2 in) over 26 rainy days in September to 154 mm (6.1 in) across only 14 days in October, along with a slight decline in humidity from 86% to 83%. For more detailed information, visit Khulna weather in October.
September and November present contrasting weather conditions. In September, temperatures range from a comfortable minimum of 25°C (77°F) to a scorching maximum of 36°C (96°F), with an average of 29°C (85°F). The month is characterized by high humidity at 86% and significant precipitation, averaging 233 mm (9.2 in) over 26 days. In stark contrast, November brings cooler temperatures, with a minimum of 15°C (59°F) and a maximum of 33°C (91°F), averaging 24°C (76°F). Additionally, November experiences much less rainfall, totaling just 63 mm (2.5 in) across only 3 days, and lower humidity at 73%. For more detailed information, you can check Khulna 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), peaking at 36°C (96°F). This month is also quite rainy, with 233 mm (9.2 in) of precipitation spread over 26 days, contributing to a high humidity level of 86%. In contrast, December brings a much cooler climate, with temperatures dropping to a minimum of 11°C (52°F) and averaging around 20°C (68°F), reaching a maximum of 30°C (86°F). Rainfall is significantly lighter in December, with only 48 mm (1.9 in) and precipitation occurring on just 2 days, resulting in lower humidity at 69%. These contrasting weather patterns highlight the shift from the humid, rainy conditions of September to the cooler, drier atmosphere of December. For more detailed information, you can check Khulna weather in December.
September in Khulna presents a distinct weather profile, marked by high humidity levels and frequent rainfall, distinguishing it from the drier months preceding it. With temperatures peaking at 36°C, the day can feel intense, yet the average sits comfortably at 29°C. However, the substantial 233 mm of precipitation over 26 days creates a lush, vibrant landscape that contrasts sharply with the more arid conditions earlier in the season. This month serves as a transition, with the oppressive heat tempered by the invigorating monsoon rains, leading to a unique atmospheric experience. For a more detailed overview of what to expect throughout the year, check out Khulna Climate.