Last updated: August 21, 2025
Experience the vibrant September weather in Bandarban, Bangladesh, where the landscape is adorned by a mix of tropical warmth and lush greenery. Maximum temperatures can soar to a sizzling 35°C (96°F), while the average temperature hovers around a comfortable 27°C (82°F), providing a pleasant escape from the heat. With a minimum temperature of 23°C (74°F), nights remain pleasantly mild. However, be prepared for the monsoon season, as the region experiences significant rainfall with a total of 267 mm (10.5 in) over 27 days. The humidity lingers at a high 82%, enhancing the lushness of this breathtaking hill district. Embrace the unique charm of Bandarban this September!
In September, Bandarban, Bangladesh experiences a warm yet comfortable climate, with temperatures ranging from a minimum of 23°C (74°F) to a maximum of 35°C (96°F). This month sees a slight drop in average temperatures compared to the peak summer months, settling around 27°C (82°F). The consistent warmth continues from August, marked by a prevalent humidity and occasional rain, setting the stage for the lush landscapes that define this region. Overall, September's climate reflects a transition towards the cooler months ahead, providing a pleasant escape for those seeking both adventure and tranquility in the heart of nature.
In September, Bandarban, Bangladesh experiences a significant amount of rainfall, with precipitation reaching 267 mm (10.5 in) over approximately 27 days. This month marks a gradual decrease from the rainiest months of June and July, which recorded an extraordinary 485 mm and 419 mm respectively. However, September's rainfall still makes it one of the wetter months of the year, as the monsoon lingers. The pattern of frequent rain indicates the region's reliance on these monsoonal showers, vital for agricultural sustainability. As the rainy season transitions into the drier months of October and November, the precipitation amount sees a notable decline, hinting at the shift in weather dynamics that shapes the lush landscapes of Bandarban.
In September, Bandarban experiences a significant rise in humidity, peaking at 82%, which marks the height of the monsoon season. This increase follows a trend seen from May onward, where humidity levels gradually climbed from 69% to the current high. The transition from the drier months of January to April, with humidity dropping to an arid 41% in March, sharply contrasts the late summer and early autumn months, illustrating the region’s shift from dryness to a lush, wet atmosphere. Post-September, humidity remains elevated through October but begins a slow decline, hinting at the onset of a dryer season ahead, with seasonal patterns showcasing the enchanting variability of Bandarban’s climate.
In September, Bandarban experiences a UV Index of 13, placing it firmly within the extreme exposure category, meaning that sun protection is crucial as burn time is a mere 10 minutes. This month continues the trend of increased UV levels from May through October, where the index often peaks at extreme levels. Interestingly, the intensity remains consistent, as July and August also reported a UV Index of 14 and 13 respectively. Heading into October, the UV Index slightly decreases to 11, but vigilance is still necessary. As the year progresses, from the high rates in the summer months to the notable dip in December, Bandarban's UV levels reflect the diverse climatic conditions of this region. For further details on daily UV levels and safety precautions, visit the Bandarban UV Index.
UV Risk Categories
As September dawns in Bandarban, Bangladesh, the region basks in 266 hours of sunshine, marking a transition from the monsoon-drenched months of July and August, which saw lower sunlight totals of 244 and 255 hours, respectively. This slight increase hints at an encouraging return to brighter days, following the summer's heavy rains. Interestingly, this month's sunshine is part of a broader upward trend established earlier in the year, where the glorious sunlight peaks towards May, boasting 347 hours. Following this peak, the hours gradually decrease, but September still shines brighter than the summer months. As the days grow shorter and autumn approaches, the comforting warmth of the sun lingers in the hills, inviting both locals and visitors to embrace the vibrant landscapes under a softer, sun-kissed sky.
September in Bandarban, Bangladesh, sees a notable dip in sunny weather, with only a 14% chance of clear skies. This follows the dramatic rainy months of June, July, and August, where conditions shift sharply, plunging the likelihood of sun to a mere 3% to 7%. In contrast, the year begins with a high probability of sunny days, peaking in January and February, which boast chances of 90% and 91%, respectively. As the monsoon gives way to fall, October offers a modest improvement at 38%, hinting at the transition towards clearer days. Overall, while September’s weather can be unpredictable, the promise of sunnier days is just around the corner as the year progresses.
As the month of September unfolds in Bandarban, Bangladesh, daylight hovers at about 12 hours, reflecting a steady decline from the peak brightness of the preceding months. With an increase in daylight to 13 hours in both May and June, followed by a gradual tapering through the summer, September marks a transition towards shorter days. This harmonious cycle is a testament to the region's climate, where the abundant daylight in the earlier months gives way to cooler, shorter days as autumn approaches. The rhythm of daylight not only emphasizes the natural beauty of Bandarban but also influences local life, encouraging outdoor activities while the sun graces the sky. As October approaches, residents anticipate the gradual dimming, looking forward to the unique charm each shorter day brings.
As September arrives in Bandarban, Bangladesh, a noticeable shift in the wind patterns can be observed. With an average wind speed of 1.5 m/s (3 mph), September marks the lowest point in the annual wind cycle, following a summer of relatively stronger breezes peaking in June and July, which both average about 2.7 m/s (6 mph). This gentle wind creates a serene atmosphere, making it an idyllic time for nature lovers to explore the lush landscapes and rolling hills without the rush of gusty conditions. As the month transitions into the cooler autumn days of October, where the wind dips even further to 1.3 m/s (3 mph), the tranquil climate invites reflection and relaxation amidst the breathtaking scenery.
Weather in Bandarban varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Bandarban, focusing on differences in temperature, rainfall, humidity, and UV levels.
The weather in September is characterized by high temperatures and significant humidity, with minimums around 23°C (74°F) and average highs reaching up to 35°C (96°F). This month experiences considerable rainfall, averaging 267 mm (10.5 in) over 27 days, resulting in a humid atmosphere with 82% humidity. In stark contrast, January boasts much cooler temperatures, with minimums dropping to 9°C (49°F) and average highs around 32°C (90°F). Precipitation in January is minimal, totaling just 8 mm (0.3 in) over only 1 day, and the humidity level is lower at 57%. For more specific details about January weather, you can check out Bandarban weather in January.
September and February present stark contrasts in weather patterns. September boasts warm temperatures, with a minimum of 23°C (74°F) and an average of 27°C (82°F), peaking at a scorching 35°C (96°F). However, it is also characterized by high rainfall, totaling 267 mm (10.5 in) over 27 days, and an elevated humidity level of 82%, making the atmosphere feel quite humid and sticky. In contrast, February enjoys milder temperatures, with a minimum of 9°C (48°F) and an average of 21°C (71°F), while still reaching up to 35°C (96°F). Remarkably, it experiences almost no rainfall, with only 4 mm (0.1 in) recorded, leading to a much drier climate and a lower humidity level of 50%. For a closer look at the unique conditions of February, visit Bandarban weather in February.
September and March exhibit distinct weather patterns that reflect the transition between seasons. In September, temperatures range from a mild 23°C (74°F) to a maximum of 35°C (96°F), accompanied by high humidity at 82% and significant rainfall totaling 267 mm (10.5 in) over 27 days. This creates a wet and humid atmosphere typical of the monsoon season. In contrast, March presents a warmer average temperature of 26°C (79°F), with highs reaching up to 39°C (103°F), but with much lower humidity at 41% and minimal precipitation of just 35 mm (1.4 in) over 2 days. This results in a drier and hotter climate as the region moves into spring. For more details on March weather, you can visit Bandarban weather in March.
The weather in September is characterized by higher humidity and more frequent rainfall, with an average temperature of 27°C (82°F) and up to 267 mm of precipitation spread over 27 days. In contrast, April experiences significantly higher maximum temperatures, reaching up to 41°C (106°F), while remaining relatively dry with only 38 mm of precipitation over 6 days. This results in a much lower humidity level of 45% in April, making it feel less oppressive compared to the humidity of September. For more details about April conditions, you can check Bandarban weather in April.
When comparing the weather in September and May, we see some distinct differences. September tends to have slightly higher average temperatures, with a minimum of 23°C (74°F) and a maximum of 35°C (96°F), while May offers a minimum of 21°C (70°F) and a notably higher maximum of 39°C (103°F). However, September is characterized by significantly more precipitation, with 267 mm (10.5 in) over 27 days compared to May's 109 mm (4.3 in) over just 14 days. Additionally, the humidity levels are higher in September at 82%, compared to 69% in May. For a more detailed view of May weather, you can check Bandarban weather in May.
In comparing the weather of September and June, we see that both months feature similar temperature ranges, with minimums around 23°C (73-74°F) and maximums peaking at 35°C (96°F). However, average temperatures are slightly higher in June at 28°C (82°F) compared to September’s average of 27°C (82°F). Notably, June is significantly wetter, with 485 mm (19.1 in) of precipitation over 28 days, while September receives 267 mm (10.5 in) over 27 days, indicating that June is the rainier month. Furthermore, humidity levels are higher in September at 82%, compared to 72% humidity in June. For more specific insights into June weather patterns, you can explore Bandarban weather in June.
In comparing the weather between July and September, both months present similar temperature ranges, with minimums around 23°C (73°F to 74°F), average temperatures of approximately 27°C (81°F to 82°F), and maximums reaching up to 35°C (96°F). However, July experiences significantly more rainfall, with 419 mm (16.5 in) over 29 days, compared to September's 267 mm (10.5 in) over 27 days. The humidity levels are slightly higher in September at 82%, while July maintains a close level at 81%. For more details on July's climate, you can check Bandarban weather in July.
In comparing the weather of September and August, we see that both months have similar average temperatures, with September registering a minimum of 23°C and an average of 27°C, slightly cooler than August's minimum of 24°C and average of 28°C. However, September experiences more rainfall, with 267 mm compared to August's 284 mm, despite having slightly fewer rainy days—27 for September versus 29 for August. Humidity remains high in both months, with September at 82% and August at 78%. For a more detailed look at the weather patterns in August, you can refer to Bandarban weather in August.
In September, the weather tends to be quite warm with temperatures ranging from a minimum of 23°C (74°F) to a maximum of 35°C (96°F) and an average of 27°C (82°F). This month also sees significant rainfall, with 267 mm (10.5 in) of precipitation spread over 27 days, resulting in a high humidity level of 82%. In contrast, October brings slightly cooler temperatures, with a minimum of 19°C (67°F) and a similar maximum of 35°C (95°F), maintaining an average of 27°C (81°F). The rainfall decreases to 184 mm (7.3 in) over 19 days, and humidity drops to 78%. For more detailed insights, you can refer to the Bandarban weather in October.
September and November present a distinct contrast in weather patterns. In September, temperatures are predominantly warmer, with a minimum of 23°C (74°F) and an average of 27°C (82°F), peaking at a sweltering 35°C (96°F). This month also experiences high humidity at 82% and significant rainfall, totaling 267 mm (10.5 inches) over 27 days. In contrast, November sees cooler temperatures, with a minimum of 15°C (59°F) and an average of 24°C (76°F), reaching a maximum of 33°C (92°F). Additionally, November is much drier, with only 34 mm (1.4 inches) of precipitation over just 4 days and a reduced humidity of 68%. For those planning to visit, further details can be found in the link: Bandarban weather in November.
September and December present a notable contrast in weather conditions. September features warmer temperatures with a minimum of 23°C (74°F) and an average of 27°C (82°F), peaking at 35°C (96°F). Additionally, this month is characterized by high humidity at 82% and significant precipitation, with 267 mm (10.5 in) falling over 27 days. In contrast, December enjoys cooler temperatures—ranging from a minimum of 11°C (52°F) to a maximum of 32°C (89°F)—and a much drier climate, with only 23 mm (0.9 in) of rain over just 2 days and lower humidity at 64%. For more details, you can refer to Bandarban weather in December.
In September, Bandarban experiences a distinct shift in weather characterized by high humidity and frequent rainfall, setting it apart from the drier months. With average temperatures hovering around 27°C (82°F), it feels quite warm, while the 267 mm of precipitation over an impressive 27 days transforms the landscape into a lush, green paradise. This combination of warmth and moisture creates a vibrant atmosphere, making it an appealing time for those who appreciate the region's natural beauty, despite the likelihood of rain. For a deeper understanding of the climate dynamics throughout the year, be sure to check out Bandarban Climate.