Last updated: August 21, 2025
In September, Delhi experiences a dynamic weather pattern marked by warm temperatures and significant humidity. With a maximum temperature reaching up to 38°C (100°F) and an average of 29°C (85°F), the month offers a transitional climate as the monsoon season begins to wane. Minimum temperatures dip to a comfortable 21°C (70°F), providing a reprieve during the evenings. However, the city also grapples with substantial precipitation, totaling 147 mm (5.8 in) over 13 rainy days. Coupled with a high humidity level of 87%, September in Delhi is characterized by a blend of heat and refreshing rainfall, creating a unique atmosphere that prepares the region for the upcoming autumn.
September in Delhi marks a transition from the oppressive heat of summer to the more temperate conditions of autumn. With minimum temperatures around 21°C (70°F) and averages rising to 29°C (85°F), this month offers a welcome reprieve, especially as the maximums drop to a more bearable 38°C (100°F). This shift is noticeable compared to the sweltering heights of August, where temperatures often hover around 25°C (77°F) at night and peak at 37°C (99°F) during the day. As the monsoon begins to wane, the city's atmosphere becomes refreshingly vibrant, setting the stage for cooler days ahead in October. Overall, September serves as a pivotal month, blending the remnants of summer heat with the promise of autumn's embrace.
In September, Delhi experiences a notable transition in its precipitation patterns, receiving 147 mm (5.8 in) of rainfall over 13 days. This marks a decline from the intense monsoonal downpours of July and August, which bring 209 mm (8.2 in) and 175 mm (6.9 in) respectively. September's rainfall, while significantly less than the preceding months, still plays a crucial role in replenishing the city’s water resources, showcasing the lingering effects of the monsoon. As the month progresses into October, precipitation drops sharply to just 18 mm (0.7 in), signaling the end of the rainy season and a shift towards drier weather. This gradual decrease reinforces a clear seasonal trend in Delhi's climate, where September acts as a bridge between the heavy rains of summer and the drier autumn months.
As the summer heat gives way to the monsoon season, September in Delhi sees humidity levels remain high at 87%, just slightly lower than the peak of 89% in August. This surge follows the trend of increasing humidity during the monsoon months of July and August, where the city experiences a significant shift from the drier conditions of the earlier months. Notably, even as September transitions towards October, the humidity remains elevated at 84%, indicating the lingering effects of the monsoon. This fluctuation highlights how Delhi's climate shifts dramatically from the dry 24% in April to the muggy conditions of late monsoon, creating a vibrant yet challenging atmosphere for residents and visitors alike.
As September unfolds in Delhi, the UV Index remains notably high at 9, categorizing it as very high. This reflects a slight decrease from the extreme levels experienced in the preceding months of July and August, which both had a UV Index of 12. Despite this dip, the burn time for unprotected skin still stands at just 15 minutes, urging residents and visitors alike to prioritize sun safety. The trend shows a typical pattern in Delhi's climate, where the summer months witness soaring UV levels, tapering off as the year progresses. As you plan your outdoor activities this September, remember to stay informed and protect your skin — for more detailed insights, check out the Delhi UV Index.
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As the sweltering summer gives way to the gentle embrace of autumn, September in Delhi reveals its delightful charm with 305 hours of sunshine. This month maintains a comfortable brightness, slightly less than May's peak of 364 hours but still basking in the warmth that follows the monsoon. Following a gradual decline from April's 344 hours, September marks a transition where the city enjoys a balance of sunshine and relief, setting the stage for the vibrant festivities ahead. With the days gradually shortening, the city's ambiance shifts, showcasing a more mellow yet inviting light that enhances its cultural kaleidoscope.
As summer wanes and the monsoon retreats, September in Delhi presents a shift in weather patterns. With a 47% chance of sunny days, this month marks a noticeable dip in sunshine compared to the preceding months. After enjoying higher probabilities of sun in the earlier part of the year—peaking in February with an impressive 86%—September’s likelihood is significantly lower, reflecting the lingering effects of rainfall from the monsoon season. While the sun might not shine as brightly, it paves the way for drier and sunnier October, which boasts a robust 89% chance of bright skies. Embracing the transitional nature of September, residents can expect a blend of cloudy days and emerging sunshine as the city gradually warms into autumn.
In Delhi, the transition into September marks a subtle shift in daylight, with the sun gifting the city approximately 12 hours of light. This change signals the gradual retreat from the summer's long, bright days. Beginning the year with 10 hours in January, daylight gradually increases through the spring, peaking at 13 hours during the vibrant summer months of May, June, July, and August. As fall approaches, September experiences a slight decline in daylight, foreshadowing the shorter days ahead, which settle at 11 hours in October and further decrease to 10 hours by November and December. This pattern not only highlights the rhythmic dance of seasons but also offers a glimpse into the shifting moods of the capital as it transitions from the sweltering heat of summer to the cooler embrace of autumn.
As September unfolds in Delhi, the gentle whisper of the wind, averaging 2.3 m/s (5 mph), hints at the transition from the sultry grip of summer to the cooler embraces of autumn. Following a slight decline from the peak winds of 3.0 m/s (7 mph) experienced in April, September maintains a soft breeze reminiscent of the preceding months. This consistent yet mild wind speed does little to disrupt the city's rhythm, instead offering a welcome reprieve as it stirs up the dust and announces the end of monsoon season. As the air begins to shift, Delhiites can enjoy the subtle freshness that September brings, paving the way for the vibrant changes of the months ahead.
Weather in Delhi varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Delhi, focusing on differences in temperature, rainfall, humidity, and UV levels.
September is characterized by significantly higher temperatures, with an average of 29°C (85°F) and maximums soaring to 38°C (100°F), while January's temperatures remain much cooler, averaging 13°C (56°F) with a maximum of 26°C (79°F). Additionally, September experiences considerable precipitation, totaling 147 mm (5.8 in) over 13 days, which creates a humid environment with 87% humidity. In stark contrast, January sees much less rainfall, with only 42 mm (1.7 in) over just 3 days and a lower humidity of 53%. For more insights into Delhi's January weather, you can explore Delhi weather in January.
September and February present contrasting weather patterns in terms of temperature, precipitation, and humidity. In September, the temperatures range from a minimum of 21°C (70°F) to a scorching maximum of 38°C (100°F), accompanied by high humidity at 87% and significant rainfall totaling 147 mm (5.8 in) over 13 days. In stark contrast, February experiences much cooler temperatures, with a minimum of 5°C (42°F) and an average of 17°C (62°F), peaking at 32°C (90°F). Additionally, February is drier, with only 34 mm (1.3 in) of precipitation falling over just 2 days, and the humidity dropping to a more comfortable 46%. For a more detailed look at Delhi's weather in February, you can visit Delhi weather in February.
In September, the weather is characterized by high temperatures, with a minimum of 21°C (70°F) and an average of 29°C (85°F), reaching a maximum of 38°C (100°F). This month also sees significant rainfall, with 147 mm (5.8 in) of precipitation spread over 13 days and high humidity levels at 87%. In contrast, March features much cooler temperatures, with a minimum of 8°C (47°F), an average of 22°C (73°F), and a peak of 39°C (102°F). Precipitation is minimal in March, totaling only 34 mm (1.3 in) over 5 days, accompanied by a much lower humidity of 33%. For a detailed look at March weather in Delhi, you can check Delhi weather in March.
When comparing the weather of September and April, it's clear that both months experience high average temperatures of 29°C (85°F). However, September tends to be much more humid, with levels reaching 87% and experiencing significant rainfall, totaling 147 mm over 13 days. In contrast, April is characterized by lower humidity at 24% and minimal precipitation, receiving only 15 mm over just 3 days. The maximum temperature in April can soar up to 44°C (111°F), showcasing a greater potential for heat extremes compared to September. For a detailed look at April's weather in Delhi, visit Delhi weather in April.
September and May present contrasting weather patterns. In September, temperatures range from a minimum of 21°C (70°F) to a maximum of 38°C (100°F), with an average temperature of 29°C (85°F). This month also experiences significant rainfall, totaling 147 mm (5.8 in) over 13 days, contributing to a high humidity level of 87%. In comparison, May sees slightly lower minimum temperatures at 20°C (69°F) and can reach a scorching maximum of 45°C (113°F), with an average of 32°C (90°F). Rainfall in May is minimal, with only 32 mm (1.3 in) occurring over just 5 days and humidity dropping to 27%. For more details, visit Delhi weather in May.
When comparing the weather in September and June, notable differences emerge. September typically features a minimum temperature of 21°C (70°F) and an average of 29°C (85°F), with maximums reaching up to 38°C (100°F). In contrast, June experiences slightly warmer conditions with a minimum of 22°C (71°F), an average of 33°C (91°F), and scorching highs that can soar to 45°C (112°F). Additionally, September tends to be wetter, recording about 147 mm (5.8 in) of precipitation over 13 days, while June sees much less rainfall at 50 mm (2.0 in) over just 8 days. Humidity levels also vary significantly, as September holds a high humidity average of 87%, compared to the much lower 31% in June. For more detailed insights, check out Delhi weather in June.
In comparing September and July, September offers slightly cooler temperatures, with a minimum of 21°C (70°F) and an average of 29°C (85°F), while July experiences higher temperatures, ranging from a minimum of 25°C (76°F) to an average of 31°C (88°F). Additionally, September boasts a maximum of 38°C (100°F), whereas July can reach as high as 42°C (109°F). Regarding precipitation, July is wetter, with 209 mm (8.2 in) of rainfall over 20 days, compared to September's 147 mm (5.8 in) over 13 days. Interestingly, humidity levels differ as well, with September being more humid at 87% compared to July's 70%. For more information on July weather specifics, you can refer to Delhi weather in July.
In September, the weather remains warm with a minimum temperature of 21°C (70°F) and an average of 29°C (85°F), peaking at 38°C (100°F). Precipitation decreases slightly to 147 mm (5.8 in) over 13 days and humidity averages around 87%. In comparison, August is notably warmer at night with a minimum temperature of 25°C (77°F) and an average of 30°C (86°F), but it experiences slightly less sunshine with maximums of 37°C (99°F). Precipitation in August is higher, totaling 175 mm (6.9 in) across 20 days, and humidity is marginally higher at 89%. For a detailed look at the fluctuations in August, visit Delhi weather in August.
September's weather in the region is characterized by high temperatures, with a minimum of 21°C (70°F) and an average of 29°C (85°F), peaking at a scorching 38°C (100°F). This month is also marked by significant precipitation, totaling 147 mm (5.8 in), falling on 13 days, and accompanied by high humidity levels at 87%. In contrast, October brings a notable shift, featuring cooler temperatures with a minimum of 13°C (56°F) and an average of 26°C (78°F), while the maximum temperature is 36°C (97°F). Precipitation drops dramatically to just 18 mm (0.7 in) over only 2 days, and humidity remains relatively high at 84%. For more detailed insights, visit Delhi weather in October.
In September, the weather is characterized by high temperatures, with minimums around 21°C (70°F) and averages reaching up to 29°C (85°F), peaking at a scorching 38°C (100°F). The month also experiences significant rainfall, totaling 147 mm (5.8 in) over 13 days, coupled with high humidity levels of 87%. Conversely, November brings a notable shift in climate, with temperatures dropping to a minimum of 8°C (48°F), averaging around 20°C (67°F), and a maximum of 32°C (89°F). Precipitation is minimal in November, seeing only 11 mm (0.4 in) over just 1 day, and humidity decreases slightly to 81%. For additional details on November weather in the region, you can visit Delhi weather in November.
September and December present a stark contrast in weather conditions. In September, temperatures soar with a minimum of 21°C (70°F) and an average high of 29°C (85°F), occasionally reaching a sweltering 38°C (100°F). This month also experiences significant rainfall, totaling 147 mm (5.8 in) over 13 days, accompanied by high humidity levels at 87%. In contrast, December offers a much cooler climate, featuring a minimum temperature of 4°C (39°F) and an average of 14°C (58°F), with highs reaching 27°C (81°F). Precipitation is minimal, with just 9 mm (0.3 in) falling over only 1 day, and humidity decreasing to 76%. For more detailed information, you can check out Delhi weather in December.
As September unfolds in Delhi, the city transitions from the sweltering grip of summer to a more temperate atmosphere. With a combination of high humidity and frequent rain showers, this month offers a refreshing change, making it distinctly different from the hotter months that precede it. The average temperatures, while still warm, are moderated by the increased cloud cover and rainfall, resulting in a more comfortable environment for residents and visitors alike. While the city sees about 13 days of rain, the lush greenery and cooler evenings create an inviting landscape. For those looking to understand how this month fits into the broader spectrum of weather in the capital, more insights can be found at Delhi Climate.