Last updated: August 21, 2025
September in Vandalur, India, ushers in a blend of warmth and moisture, characterized by maximum temperatures reaching up to 36°C (97°F) and an average of 29°C (85°F). The nights offer a brief respite with a minimum temperature of 24°C (76°F). This month sees a significant amount of rainfall, accumulating to 143 mm (5.6 in), spread over 19 days, contributing to a humidity level that hovers around 79%. The climatic conditions create a lush atmosphere, making September a vibrant time for both nature enthusiasts and those experiencing the picturesque landscapes of Vandalur.
In September, Vandalur experiences a transition in temperatures that signals the shift from the heavy monsoon season. With minimums averaging around 24°C (76°F) and averages settling at 29°C (85°F), the climate remains warm yet slightly cooler than the peak summer months. The maximum temperature reaches 36°C (97°F), providing a reprieve from the intense heat of May and June. Overall, September serves as a gentle reminder of the approaching fall, as temperatures begin to gradually decrease, inviting a more comfortable and pleasant atmosphere for both locals and visitors alike.
September stands out in Vandalur, India, as a pivotal month for precipitation, showcasing a significant increase with 143 mm (5.6 in) of rainfall recorded over 19 days. This is a natural progression from the preceding months of August, which brought 141 mm (5.5 in), and reflects the region's transition into the heart of the monsoon season. As the monsoon intensifies, September contributes to the overall trend of increasing rainfall from the dry beginning of the year, where January recorded only 28 mm (1.1 in). The gradual escalation in both precipitation amounts and rainy days highlights the climatic shift, setting the stage for October, which typically witnesses even heavier downpours. Thus, September not only marks a peak in rainfall but also heralds the approach of the wetter months ahead.
As summer fades into fall, September in Vandalur, India, experiences a notable rise in humidity, reaching 79%. This spike follows the relatively humid days of August, which recorded 72%, and sets the stage for the even wetter months ahead. Throughout the year, humidity levels exhibit a distinct trend, with the lowest point at 50% in both April and March, gradually climbing to a peak in the latter part of the year. With October and November expected to soar to 88% and 89%, respectively, it becomes clear that September acts as a transitional month, ushering in the lush, green vibrancy that characterizes the region's post-monsoon atmosphere.
As September arrives in Vandalur, India, residents and visitors can expect a consistently high UV Index of 13, placing it firmly in the extreme exposure category with a burn time of just 10 minutes. This trend of elevated UV radiation began in February and has remained unchanged throughout the summer months, peaking during April and July. With September maintaining this intensity, it's crucial for everyone to exercise caution and protect their skin while enjoying outdoor activities. As the UV Index starts to gradually decrease in October, the importance of awareness and sun safety remains pertinent. For more detailed information, visit Vandalur UV Index.
UV Risk Categories
September in Vandalur, India, brings a gentle decline in sunshine, with 292 hours brightening the month. Following the peak summer months, where sunlight reached its zenith in May at 351 hours, the transition into autumn is marked by a gradual reduction in daylight. Despite the decrease, September still enjoys ample sunshine, though it’s a noticeable shift from the lush brightness of earlier months. This pattern mirrors the subtle ebb of summer warmth as the year progresses, leading into October's 303 hours, which hints at a slight resurgence before the winter months approach. Overall, the sunshine trend showcases Vandalur's vibrant climate, oscillating gracefully between the extremes of summer's brilliance and winter's retreat.
In Vandalur, India, September marks a significant dip in sunny weather, boasting only a 13% chance of sun. As the monsoon season reaches its peak, this month contrasts sharply with the earlier months of the year where sunshine is more prevalent. February and March stand out with chances exceeding 67%, showcasing the region's brighter potential during the pre-monsoon phase. Conversely, the months that follow September, particularly October and November, gradually see an improvement, hinting at a transition away from the monsoon gloom. Overall, September's 13% likelihood of sunshine underscores the heightened rainfall characteristic of this period, a stark reminder to locals and travelers alike to prepare for overcast skies rather than bask in the sun.
As September rolls into Vandalur, India, the daylight duration remains steady at 12 hours, mirroring the trend established since March. This consistency highlights a transitional phase in the region's climate, where abundant daylight supports the lush growth of flora prevalent in this period. Following a series of months with extended daylight, October will bring a slight decline, dropping back to 11 hours. This cyclical pattern not only reflects the changing seasons but also provides a beautiful backdrop for the vibrant life and activities in this enchanting locale.
In September, Vandalur experiences a gentle average wind speed of 2.6 m/s (6 mph), maintaining a consistent breeze that echoes the calming transitions of the seasonal shift. This month marks the return to typical wind patterns seen in the prior months, complementing the tail end of the monsoon season. From June through August, wind speeds hovered around the 3.1 to 3.3 m/s (7 mph) range, suggesting a lively atmospheric dance, while September’s stability reaffirms a smooth transition toward the quieter autumn months. As the temperatures begin to cool, the winds remain soft yet persistent, reminding us of the balanced rhythm that Vandalur enjoys throughout the year.
Weather in Vandalur varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Vandalur, focusing on differences in temperature, rainfall, humidity, and UV levels.
In September, the weather tends to be quite hot and humid, with average temperatures reaching 29°C (85°F) and highs climbing up to 36°C (97°F). The month also sees significant rainfall, with precipitation totaling 143 mm (5.6 in) over 19 days, contributing to a humidity level of 79%. In contrast, January offers a more pleasant climate, with average temperatures around 25°C (78°F) and maximums reaching 32°C (90°F). The month is much drier, with only 28 mm (1.1 in) of precipitation over just 4 days and a slightly lower humidity of 73%. For more detailed insights, you can check Vandalur weather in January.
September weather is characterized by higher temperatures, with minimums around 24°C (76°F) and average highs reaching 36°C (97°F). Additionally, this month sees significant rainfall, totaling 143 mm (5.6 in) over 19 days, contributing to a humidity level of 79%. In contrast, February presents milder conditions, with temperatures ranging from a minimum of 18°C (64°F) to a maximum of 34°C (94°F) and an average of 26°C (79°F). Notably, February experiences very little precipitation, with just 6 mm (0.3 in) and no rainy days, resulting in a lower humidity level of 64%. For more details, you can check Vandalur weather in February.
September weather is characterized by higher humidity and more precipitation, with average temperatures around 29°C (85°F) and significant rainfall of 143 mm (5.6 in) over approximately 19 days. In contrast, March offers a drier climate with only 6 mm (0.3 in) of rain and a much lower humidity level of 51%. While both months maintain an average temperature of 29°C (84°F), March can peak at a scorching 38°C (101°F), making it hotter than September's maximum of 36°C (97°F). For more details on March weather in Vandalur, check out Vandalur weather in March.
In comparing the weather of September and April, notable differences emerge. September experiences a warmer range with average temperatures around 29°C (85°F) but is significantly more humid at 79%, accompanied by substantial rainfall totaling 143 mm (5.6 in) over 19 days. In contrast, April boasts a higher average temperature of 31°C (88°F), reaching maximums of up to 40°C (104°F), but it typically enjoys much drier conditions with only 10 mm (0.4 in) of precipitation falling over just 3 days and a lower humidity level of 50%. For a detailed overview of April's climate in Vandalur, you can check Vandalur weather in April.
In comparing the weather of September and May, notable differences emerge. September sees average temperatures ranging from a minimum of 24°C (76°F) to a maximum of 36°C (97°F), accompanied by higher humidity at 79% and substantial precipitation of 143 mm (5.6 in) over 19 days. In contrast, May is typically hotter with average temperatures between 25°C (77°F) and a peak of 42°C (108°F). It experiences significantly lower rainfall with only 19 mm (0.7 in) over just 4 days and a humidity level of 62%. For more specific insights into the weather conditions during May, visit Vandalur weather in May.
In comparing the weather of September and June, September presents a slightly milder climate with average temperatures ranging from a minimum of 24°C (76°F) to a maximum of 36°C (97°F), while June experiences warmer conditions with temperatures between 26°C (78°F) and a peak of 41°C (106°F). Despite June boasting higher average temperatures, it has less precipitation at 80 mm (3.1 in) over 14 days compared to September’s 143 mm (5.6 in) spread over 19 days, making September a rainier month. Furthermore, September's humidity stands at 79%, which is noticeably higher than June's 68%, adding to the discomfort of the heat during the latter month. For a detailed look at June weather, you can check Vandalur weather in June.
When comparing the weather in September and July, it's clear that both months are characterized by warm temperatures, but with some noteworthy differences. September typically presents a slightly lower minimum temperature of 24°C (76°F) and an average of 29°C (85°F), while July, with its higher minimum of 25°C (77°F), has a warmer average of 31°C (88°F) and can reach maximum temperatures as high as 40°C (103°F). In terms of precipitation, September sees more rainfall with 143 mm (5.6 in) spread over 19 days, compared to July’s 130 mm (5.1 in) over 17 days. Additionally, September's humidity level is significantly higher at 79%, making the air feel more oppressively humid than July's 59%. For a more detailed look at July weather, you can check this link: Vandalur weather in July.
In comparing the weather between August and September, we see that September is slightly cooler, with average temperatures ranging from a minimum of 24°C (76°F) to a maximum of 36°C (97°F), compared to August's range of 25°C (78°F) to 38°C (101°F). Both months have similar precipitation levels, with September receiving 143 mm (5.6 in) over 19 days and August slightly less at 141 mm (5.5 in) over 20 days. Notably, September also has a higher humidity level at 79%, compared to August's 72%, making September feel more muggy despite the overall drop in temperature. If you'd like to explore more about August's weather, you can check out Vandalur weather in August.
September and October present a transition in weather patterns, with both months featuring warm temperatures but notable differences in precipitation and humidity. In September, the minimum temperature is slightly higher at 24°C (76°F), with an average of 29°C (85°F) and a maximum reaching 36°C (97°F). However, October sees a slight drop in the average temperature to 28°C (83°F) and a minimum of 23°C (73°F).
Rainfall increases in October, with total precipitation reaching 170 mm (6.7 in) over 21 days compared to 143 mm (5.6 in) over 19 days in September. Additionally, October experiences higher humidity at 88% compared to September's 79%. This shift in conditions makes October feel more muggy and wet. For more detailed weather information, you can visit Vandalur weather in October.
In comparing the weather of September and November, it's clear that November experiences slightly cooler temperatures, with a minimum of 21°C (71°F) and an average of 27°C (80°F), compared to September's minimum of 24°C (76°F) and average of 29°C (85°F). November also sees a higher level of humidity, reaching 89%, up from September's 79%, contributing to a more muggy feel. Additionally, November has significantly more rainfall, with 284 mm (11.2 in) of precipitation over 20 days, compared to September's 143 mm (5.6 in) spread over 19 days. For a detailed look at the weather patterns specific to Vandalur, you can visit this link: Vandalur weather in November.
In September, the weather is notably warmer, with average temperatures reaching 29°C (85°F) and maximum highs soaring up to 36°C (97°F). This month is characterized by higher humidity at 79% and substantial rainfall, with 143 mm (5.6 in) spread over 19 days. In contrast, December brings cooler temperatures, with an average of 26°C (78°F) and maximums of 32°C (90°F). Precipitation in December is reduced to 86 mm (3.4 in) over just 9 days, and humidity rises slightly to 85%. For more details, check out Vandalur weather in December.
As September rolls in, Vandalur experiences a unique weather pattern characterized by warm temperatures and increased humidity. With the maximums peaking at 36°C and an average of 29°C, this month stands out with its sweltering heat, particularly in comparison to the cooler months preceding it. However, it's also marked by significant rainfall, accumulating over 143 mm across about 19 days, setting the stage for a refreshing contrast to the dry summer. This combination of warmth and moisture creates a lush atmosphere, making September a pivotal time in Vandalur’s yearly climate cycle. For more detailed insights, explore Vandalur Climate.