Last updated: August 21, 2025
September in Hosur, India presents a mild and humid climate, with temperatures peaking at a comfortable 30°C (87°F) and averaging around 24°C (76°F). The month witnesses a noticeable drop to a minimum of 19°C (66°F), providing cooler evenings. With 161 mm (6.3 in) of rainfall spread over 19 days, the lush greenery is rejuvenated, while the air feels notably humid at 79%. Overall, September offers a blend of warmth and refreshing rain, making it an inviting time for both residents and visitors alike.
In September, temperatures in Hosur, India begin to transition into the cooler months, offering a pleasant reprieve from the preceding summer heat. With a minimum temperature of 19°C (66°F) and an average hovering around 24°C (76°F), the region remains remarkably comfortable. The maximum temperature reaches around 30°C (87°F), gradually cooling from the heights of summer. This month marks a subtle shift; while the days are still warm, the evenings invite a fresher breeze, hinting at the arrival of autumn. As the weather becomes increasingly moderate, September sets the stage for the cooler, more enjoyable months ahead.
September in Hosur, India, marks a significant surge in precipitation, with 161 mm (6.3 in) of rainfall recorded over 19 days. This increase is part of the region's monsoonal rhythm, as the month follows a series of build-ups in the preceding months—particularly May, June, July, and August, which also experienced substantial rainfall. September stands out as a peak, just shy of the following month, October, which sees a similar total of 165 mm (6.5 in) but over an extended duration of 21 days. The trend illustrates how the monsoon infuses vitality into Hosur’s landscape, where the rain, though frequent, is welcomed, nurturing the lush surroundings and supporting local agriculture. Transitioning from the drier months at the start of the year, September truly encapsulates the essence of the monsoon season.
As September rolls into Hosur, India, residents experience a noticeable rise in humidity, reaching 79%. This marks a peak after the summer months, where humidity levels previously hovered between 51% and 72%. Following a warm and wet August, September's moisture in the air signals the transition towards heavier monsoon effects. Observing the trends throughout the year, humidity progressively increases from January’s 73%, dipping to a low of 50% in April, before gradually climbing again. This continued rise culminates in the autumn months, with October and November presenting even higher humidity levels at 88% and 89% respectively. Overall, September acts as a pivotal threshold, heralding the onset of a humid period that shapes Hosur's climatic character as the year draws to a close.
In Hosur, India, September marks the continuation of an extreme UV Index, peaking at 14, consistent with the trend observed from June through August. This relentless intensity highlights a significant risk, with a mere 10 minutes of unprotected sun exposure capable of causing skin burns. Following a summer of elevated UV levels, the autumn months do not bring much relief, as October maintains a UV Index of 12. For anyone planning outdoor activities in September, it’s crucial to stay vigilant and protect your skin by using sunscreen and wearing appropriate clothing. For more information on UV levels throughout the year, visit Hosur UV Index.
UV Risk Categories
September in Hosur, India, embraces a delightful balance of sunshine, offering 280 hours of bright rays that echo the earlier summer months. After a peak in March with 346 hours of sunlight, the sunshine hours gradually taper off in the subsequent months, with August marking a dip to 254 hours. However, September maintains a steady warmth, paving the way for the mild transition into October, which sees a slight uptick to 290 hours. This subtle resurgence hints at a lingering summer, creating a harmonious backdrop for outdoor activities before the colder months settle in. Overall, the trend showcases a year of ample sunshine, with September standing out as a refreshing bridge between the vibrant summer and the crisp fall.
In Hosur, India, the likelihood of sunny weather in September is notably low, with just a 10% chance of sunshine. This trend follows a steep decline in sunny days through the monsoon months, where July and August see probabilities plummet to 7% and 11%, respectively. The fresh beginning of the monsoon in June further compounds the greyness, leading up to September, which often remains overcast and wet. As the city transitions into October, the chance of sun begins to rise slightly to 13%, hinting at the gradual return of clearer skies. Overall, September stands out as one of the gloomiest months in Hosur, making it a time to embrace the rain rather than the rays.
In Hosur, India, September marks a continuation of the consistent daylight trend seen throughout the year, basking in 12 hours of daylight. Following a steady pattern from March through September, the daylight duration remains stable, providing ample time for outdoor activities and agricultural pursuits. This month seamlessly transitions from the preceding summer months, contributing to the lively atmosphere of the region. As October approaches, a gradual decrease to 11 hours of daylight signals the onset of autumn, yet September's bright days serve as a reminder of the vibrant energy that the longer daylight hours bring.
As September rolls in, Hosur experiences a gentle breeze with an average wind speed of 4.0 m/s (9 mph). This slight dip from July’s peak of 5.0 m/s reflects the transition from the more vigorous winds of the earlier monsoon months, yet it maintains a pleasant freshness, making the evenings feel particularly inviting. Comparatively, the spring months have lower averages, hovering around 2.6 to 3.1 m/s, while the mid-year surge showcases how the wind ebbs and flows throughout the year. Overall, September's breezy charm sets the stage for a gradual return to calmer winds as the year winds down, hinting at the serene changes that await in the coming months.
Weather in Hosur varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Hosur, focusing on differences in temperature, rainfall, humidity, and UV levels.
September and January present distinctly different weather patterns. In September, temperatures range from a minimum of 19°C (66°F) to a maximum of 30°C (87°F), with an average of 24°C (76°F). The month is notably wet, with 161 mm (6.3 in) of precipitation over 19 days and a humidity level of 79%. In contrast, January showcases milder temperatures, with a minimum of 13°C (55°F) and a maximum of 31°C (88°F), alongside a lower average of 22°C (71°F). Precipitation is minimal during this month, totaling just 16 mm (0.6 in) over 2 days, and the humidity drops to 73%. For more detailed information, you can check Hosur weather in January.
September weather is characterized by warmer temperatures, with average highs reaching up to 30°C (87°F) and notable humidity levels at 79%. It is also a wetter month, receiving significant rainfall of 161 mm (6.3 in) over 19 days. In contrast, February experiences milder conditions, with average temperatures ranging from a minimum of 14°C (57°F) to a maximum of 33°C (92°F) and much lower precipitation of only 11 mm (0.4 in) on just 1 day, coupled with a reduced humidity level of 64%. For more detailed insights into February weather specifically, you can refer to Hosur weather in February.
September and March present notable differences in weather patterns. In September, temperatures range from a minimum of 19°C (66°F) to a maximum of 30°C (87°F), with an average of 24°C (76°F). This month is characterized by significant rainfall, with total precipitation reaching 161 mm (6.3 in) over 19 rainy days and a humidity level of 79%. In contrast, March experiences slightly warmer temperatures, with a minimum of 16°C (62°F) and a maximum reaching 35°C (96°F), averaging 26°C (79°F). Notably, March enjoys much drier conditions, with only 13 mm (0.5 in) of rainfall over just 2 days and a lower humidity level of 51%. For more detailed information about March weather, you can check Hosur weather in March.
When comparing September and April weather, notable differences emerge. September features a milder temperature range, with a minimum of 19°C (66°F) and an average of 24°C (76°F), peaking at 30°C (87°F). However, it experiences significant rainfall, averaging 161 mm (6.3 in) over 19 days, leading to a high humidity level of 79%. In contrast, April showcases a hotter climate, with temperatures starting at a minimum of 20°C (68°F), an average of 28°C (82°F), and soaring to a maximum of 36°C (98°F). Precipitation is sparse in April, totaling only 41 mm (1.6 in) over just 4 days, which corresponds with a lower humidity of 50%. For more details on the weather in April, you can visit Hosur weather in April.
In comparing the weather of September and May, we see distinct differences in temperature and precipitation. September experiences a mild range, with average temperatures from 19°C (66°F) to a maximum of 30°C (87°F), while May boasts higher averages, starting at a minimum of 20°C (68°F) and peaking at 36°C (97°F). One notable aspect is the increase in rainfall in September, with 161 mm (6.3 in) over 19 days compared to May's 129 mm (5.1 in) over 15 days. Additionally, September has a higher humidity level of 79%, whereas May is generally drier with a humidity of 62%. For further details, you can check Hosur weather in May.
In comparing the weather conditions of September and June, we see distinct differences. June typically experiences a warmer atmosphere with an average temperature of 25°C (77°F) and maximum highs reaching 33°C (91°F). In contrast, September has a slightly cooler average temperature of 24°C (76°F) and maximums peaking at 30°C (87°F). Additionally, September is characterized by heavier rainfall, accumulating 161 mm (6.3 in) over 19 days, while June witnesses less precipitation at 104 mm (4.1 in) over the same number of days. Humidity levels are also higher in September at 79%, compared to 68% in June, contributing to a more muggy feel as summer transitions into autumn. For more detailed information, visit Hosur weather in June.
In comparing the weather between July and September, we can observe some notable differences. July tends to be slightly warmer, with minimum temperatures averaging around 20°C (68°F) and maximums reaching up to 32°C (89°F). In contrast, September's temperature range is a bit cooler, with minimums around 19°C (66°F) and maximums peaking at 30°C (87°F). Additionally, September experiences significantly higher precipitation, averaging 161 mm (6.3 in) over 19 days, while July sees less rainfall at 111 mm (4.4 in) across the same number of days. Furthermore, humidity levels in September are notably higher at 79%, compared to July's lower humidity of 59%. For more detailed information on July weather, you can visit Hosur weather in July.
In August, the weather tends to be slightly warmer with a minimum temperature of 20°C (68°F) and a maximum of 31°C (88°F), while September sees a minimum of 19°C (66°F) and a peak of 30°C (87°F). Both months maintain an average temperature of around 24°C (75°F in August and 76°F in September). However, September experiences significantly more precipitation, with 161 mm (6.3 in) over 19 days, compared to August's 113 mm (4.5 in) during the same number of days. Additionally, September's humidity is higher at 79%, compared to August's 72%. For more details on August's weather patterns, check Hosur weather in August.
In September, the weather features a comfortable average temperature of 24°C (76°F), with daytime highs reaching up to 30°C (87°F) and a relatively high humidity level of 79%. September also experiences significant rainfall, accumulating 161 mm (6.3 in) over 19 days. In contrast, October sees a slight drop in minimum temperatures to 16°C (61°F) while maintaining the same average of 24°C (75°F). The maximum temperature rises modestly to 31°C (88°F), and the month is marked by increased humidity at 88%. Rainfall also increases slightly to 165 mm (6.5 in), occurring over 21 days. For more detailed weather information, you can check Hosur weather in October.
September and November exhibit contrasting yet similar weather patterns. In September, temperatures range from a minimum of 19°C (66°F) to a maximum of 30°C (87°F), with an average of 24°C (76°F). The month is marked by significant rainfall, averaging 161 mm (6.3 in) over 19 days, and a humidity level of 79%. In contrast, November sees slightly cooler temperatures, with a minimum of 15°C (60°F) and an average of 23°C (73°F), while still reaching a maximum of 30°C (87°F). Rainfall decreases to 125 mm (4.9 in) spread across 13 days, and humidity rises to 89%. For more detailed information, you can visit Hosur weather in November.
In September, the weather is notably warmer, with average temperatures reaching 24°C (76°F) and highs of 30°C (87°F). This month is also characterized by significant rainfall, totaling 161 mm (6.3 inches) spread over 19 days, combined with a humidity level of 79%. In contrast, December experiences cooler temperatures, with an average of 22°C (71°F) and a maximum of 29°C (85°F). Rainfall is much lighter, amounting to only 36 mm (1.4 inches) over just 6 days, while humidity slightly increases to 85%. For more specific details, you can check Hosur weather in December.
In September, Hosur experiences a notable shift in weather, characterized by increased humidity and the highest rainfall of the year, making it distinctly wetter than the preceding months. With temperatures averaging around 24°C, the climate remains mild, but the frequent downpours can often bring a refreshing break from the lingering heat of summer. This month sees about 19 days of rain, significantly influencing outdoor activities and the local landscape. As the region transitions into the monsoon season, you can expect lush greenery to emerge, creating a unique and vibrant environment. For a more detailed understanding of what to expect, check out Hosur Climate.