Last updated: August 21, 2025
In Rajshahi, Bangladesh, September showcases a dynamic climate characterized by a maximum temperature reaching 36°C (97°F) and an average of 29°C (85°F), providing a warm backdrop for the month. Despite the high temperatures, evenings cool down to a minimum of 24°C (76°F), creating a comfortable atmosphere. This month is also notable for its generous rainfall, with 221 mm (8.7 in) of precipitation spread over 25 days, contributing to an impressive 90% humidity level. The interplay of heat and frequent showers paints a vivid picture of vibrant weather patterns typical of this region during September.
In September, Rajshahi experiences a transition towards the cooler temperatures of autumn while still holding onto the warmth of summer. The minimum temperature hovers at a comfortable 24°C (76°F), providing a pleasant start to the day, while the average temperature lingers around 29°C (85°F), offering a moderate heat during the afternoons. With highs reaching up to 36°C (97°F), it's clear that the remnants of summer are still present, but the overall trend shows a gradual decline in temperature compared to the sweltering months of July and August. As the month unfolds, residents can enjoy warm, tropical days and slightly cooler nights, setting the stage for the welcoming shift into October's more temperate climate.
In September, Rajshahi experiences a significant 221 mm (8.7 in) of precipitation, marking a slight decline from the previous month's substantial rainfall. This month stands out with 25 rainy days, contributing to the increasingly wet atmosphere typical of the late monsoon season. The precipitation trend is notably high from May to July, peaking in July with 312 mm (12.3 in), although September’s totals still reflect the lingering effects of the monsoon. As the month progresses, the rainfall begins to taper off, hinting at the transition into the drier months that follow. This cyclical pattern underscores the region's reliance on monsoon rains for agricultural prosperity, as the abundant September showers prepare the ground for the coming harvest season.
In September, Rajshahi experiences a notable shift in humidity, maintaining a high level of 90%, consistent with the intense moisture found during the preceding summer months. This marks a transition from the relatively lower humidity of earlier months, such as the 35% recorded in April and the 48% in March. As the region moves into autumn, humidity levels remain elevated, closely mirroring the humidity seen in August and July, which are typically the wettest months of the year. Following this humid peak, there is a gradual decline in humidity through the fall months, underscoring the region's shift from the sweltering summer heat to the more temperate conditions of winter. Overall, September serves as a bridge between the oppressive humidity of summer and the slightly drier atmosphere that follows.
In September, the UV Index in Rajshahi, Bangladesh, reaches an extreme level of 12, indicating a significant risk of harm from unprotected sun exposure. As the monsoon season transitions to drier conditions, the UV radiation remains notably high, requiring vigilance with just 10 minutes of burn time. This trend of elevated UV levels continues from the intense summer months of July and August, where similar extreme values were recorded. Interestingly, this pattern suggests a consistent challenge for outdoor activities as the region deals with potent sunlight through the later summer and into the early fall. For those planning to enjoy the outdoors, protective measures are essential to withstand the high UV levels. For more details, you can check out the comprehensive guide at Rajshahi UV Index.
UV Risk Categories
September in Rajshahi, Bangladesh, enjoys 274 hours of sunshine, marking a gentle decline from the high of 331 hours in March and a stable yet lighter atmosphere compared to the summer peak. This month continues the trend of ample sunlight seen throughout the earlier months, with the city basking in warmth as it transitions into the cooler seasons. Despite September's slight reduction in sunshine hours, it remains vibrant and welcoming, nestled between the summer's cheerful expanse and the approaching fall. The consistent range from earlier months indicates Rajshahi's unique charm, where sunshine lingers delightfully, setting the stage for a golden October ahead.
In Rajshahi, Bangladesh, the likelihood of sunny weather experiences a dramatic shift as the seasons change. **With a robust 87% chance of sun in January, the months of February through April hold onto a high probability, gradually declining to 73% in April. However, this sunny disposition takes a plunge during the summer, with May dropping to 45%, and a striking 7% chance in July and 6% in August. As September arrives, there’s a modest recovery to 22%, offering a glimpse of sun after the monsoon. The trend continues upward in October, climbing to 60%, and stabilizing with 75% in November. Therefore, while September may not be the sunniest month, it signals a transition towards clearer skies.
As September rolls into Rajshahi, Bangladesh, the daylight duration settles at 12 hours, maintaining the balance observed in the preceding months of April and August. This month marks a subtle transition, as daylight hours have peaked during the summer months of May, June, and July, each boasting 13 hours of sunlit skies. Following this high, September's slight decrease reflects the gradual onset of autumn, with daylight beginning to wane as the year progresses toward its end. The charming symmetry of daylight hours throughout the year highlights a rhythmic dance of sunlight, where the lushness of summer gradually gives way to the softer, shorter days of fall.
As September arrives in Rajshahi, Bangladesh, the air carries a gentle breeze, with an average wind speed of 2.4 m/s (5 mph). This marks a slight dip from the stronger gusts of the earlier summer months, where winds peaked at 2.9 m/s (6 mph) in June. Interestingly, September's wind speed mirrors that of May and August, suggesting a stabilizing trend as the region transitions into the cooler months. The diminishing wind speeds in October and November will soon herald the calmness of winter, emphasizing the cyclical nature of Rajshahi's climate. As the September winds blow softly, they invite locals to enjoy the lingering warmth before the cooler seasons set in.
Weather in Rajshahi varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Rajshahi, focusing on differences in temperature, rainfall, humidity, and UV levels.
September and January offer contrasting weather conditions. September experiences much warmer temperatures, with averages around 29°C (85°F) and highs reaching up to 36°C (97°F), while January's temperatures are significantly cooler, averaging 17°C (63°F) with a maximum of 29°C (85°F). Additionally, September is marked by high humidity at 90% and substantial rainfall of 221 mm (8.7 inches) over 25 days, creating a very humid atmosphere. In stark contrast, January sees minimal precipitation of just 4 mm (0.2 inches) and only about one rainy day, along with a lower humidity level of 74%. For more insights on January weather, check out Rajshahi weather in January.
September and February present strikingly contrasting weather patterns. In September, temperatures range from a minimum of 24°C (76°F) to a maximum of 36°C (97°F), with an average of 29°C (85°F). The month is marked by significant rainfall, accumulating 221 mm (8.7 in) over 25 days and high humidity at 90%. In contrast, February experiences much cooler conditions, with temperatures varying from a low of 8°C (47°F) to a high of 33°C (92°F), averaging around 20°C (69°F). The precipitation is minimal, totaling just 15 mm (0.6 in) over only 2 days, and the humidity drops to a comfortable 65%. For more detailed information on February weather, visit Rajshahi weather in February.
September and March present contrasting weather patterns. In September, temperatures are generally warmer, with a minimum of 24°C (76°F) and an average of 29°C (85°F), peaking at a scorching 36°C (97°F). The month is also characterized by high humidity levels at 90% and significant rainfall totaling 221 mm (8.7 in) spread over 25 days. In contrast, March offers a more temperate climate with a minimum temperature of 13°C (55°F) and an average of 26°C (78°F), reaching a maximum of 37°C (98°F). Rainfall in March is minimal, with only 21 mm (0.8 in) occurring over just 5 days, accompanied by a much lower humidity of 48%. For more detailed insights into March weather specifics, visit Rajshahi weather in March.
September and April present contrasting weather patterns. September experiences higher humidity at 90% and more frequent rainfall, with 221 mm of precipitation spread over 25 days. The temperatures range from a minimum of 24°C (76°F) to a maximum of 36°C (97°F), creating a warm atmosphere. In contrast, April boasts lower humidity at 35% and significantly less rainfall, totaling 110 mm over just 13 days. Its temperature range is slightly cooler, with minimums of 17°C (63°F) and maximums soaring to 40°C (105°F). For more detailed information, visit Rajshahi weather in April.
In comparing the weather of September and May, both months exhibit warm temperatures, with September recording a minimum of 24°C (76°F) and an average of 29°C (85°F), while May has a slightly lower minimum of 20°C (68°F) but a higher maximum of 39°C (103°F). September experiences higher humidity at 90%, which contributes to a more muggy atmosphere, while May's humidity is significantly lower at 65%. Precipitation is fairly similar, with September seeing 221 mm (8.7 in) over 25 days and May having 234 mm (9.2 in) over just 20 days. For a closer look at May's weather specifics, you can visit Rajshahi weather in May.
In comparing the weather of September and June, we see some notable differences. September has slightly higher humidity at 90% compared to June's 83%, contributing to a more muggy environment. The average temperature in September is a bit lower at 29°C (85°F), while June averages at 30°C (86°F), with June also reaching higher maximum temperatures of 38°C (101°F) compared to September's 36°C (97°F). However, September experiences more rainfall, with 221 mm (8.7 in) over 25 days, compared to June's 271 mm (10.7 in) over 24 days. For more detailed information on June's weather, you can check Rajshahi weather in June.
The weather in September and July exhibits some similarities but notable differences. In September, temperatures range from a minimum of 24°C (76°F) to a maximum of 36°C (97°F), with an average temperature of 29°C (85°F). The month experiences significant rainfall, totaling 221 mm (8.7 in) over 25 days, resulting in high humidity levels around 90%. In contrast, July sees slightly higher temperatures, with a minimum of 25°C (77°F) and a maximum reaching 37°C (99°F), maintaining the same average of 29°C (85°F). However, July is rainier, amassing 312 mm (12.3 in) of precipitation over 27 days, creating even higher humidity at 91%. For those interested in more details, check out Rajshahi weather in July.
In comparing the weather between August and September, we see that September experiences slightly cooler temperatures with a minimum of 24°C (76°F) compared to August's minimum of 26°C (79°F). Both months share the same maximum temperature of 36°C (97°F), but August has a higher average temperature of 30°C (86°F) versus September's 29°C (85°F). Additionally, September sees reduced precipitation, with 221 mm (8.7 in) over 25 days, while August records 271 mm (10.7 in) across 27 days. Both months have a high humidity level of 90%, contributing to a sticky atmosphere throughout. For more detailed information on August weather, check out Rajshahi weather in August.
September and October exhibit notable differences in weather patterns. September typically experiences slightly warmer temperatures, with an average of 29°C (85°F) and daily highs reaching up to 36°C (97°F), compared to October’s average of 28°C (82°F). Additionally, September sees more significant rainfall, totaling 221 mm (8.7 in) across 25 days, while October receives just 127 mm (5.0 in) over 13 days. Despite this decrease in precipitation, both months maintain high humidity levels, hovering around 90% in September and slightly lower at 89% in October. For more detailed information, you can check Rajshahi weather in October.
September and November present contrasting weather conditions. In September, the temperatures soar with a minimum of 24°C (76°F) and can reach highs of up to 36°C (97°F), accompanied by high humidity at 90%. Additionally, this month experiences significant rainfall, totaling 221 mm (8.7 in) over 25 days. In stark contrast, November offers a much cooler climate, with minimums dropping to 14°C (57°F) and an average temperature of 23°C (75°F), peaking at 34°C (93°F). Precipitation is minimal in November, totaling just 5 mm (0.2 in) over a single day, and humidity remains slightly lower at 88%. For more details, check out Rajshahi weather in November.
In September, the weather is characterized by high temperatures, with minimums around 24°C (76°F) and average highs reaching up to 36°C (97°F). The month experiences substantial rainfall, totaling 221 mm (8.7 in) over 25 days, and a high humidity level of 90%. In contrast, December brings much cooler conditions, with temperatures ranging from a minimum of 10°C (50°F) to an average of 19°C (67°F) and maximums of 29°C (85°F). Precipitation in December is significantly lower, at just 16 mm (0.6 in) across only 2 days, and humidity reduces slightly to 87%. For more detailed information about December weather, you can visit Rajshahi weather in December.
As September arrives in Rajshahi, the weather takes on a distinct personality, characterized by high humidity and frequent rainfall that sets it apart from the drier months of the year. The average temperature hovers comfortably around 29°C (85°F), but occasional peaks can soar as high as 36°C (97°F), creating a steamy atmosphere. With over 200 mm of precipitation spread across 25 days, lush greenery flourishes, marking this month as one of the wettest. The persistent humidity lingering at 90% can be quite overwhelming, leading to a palpable shift in the overall climate experience. For a deeper understanding of how September aligns with the broader Rajshahi climate, check out Rajshahi Climate.