Last updated: August 21, 2025
In September, Lucknow, India, experiences a dynamic weather pattern characterized by maximum temperatures soaring up to 37°C (98°F) and an average of 29°C (85°F), providing a warm backdrop for the month. The evenings bring some relief with minimum temperatures dipping to a comfortable 23°C (74°F). However, this warmth comes with a significant amount of precipitation, totaling 201 mm (7.9 in) over 18 days, contributing to the area's lush greenery. The humidity peaks at a sweltering 90%, creating a balmy atmosphere that underscores the tropical monsoon season. Visitors and residents alike should prepare for both sunny spells and unexpected showers as nature unfolds its vibrant tapestry during this transitional time of year.
September in Lucknow marks a transition towards the more temperate months of the year, as the summer heat begins to wane. With temperatures ranging from a minimum of 23°C (74°F) to a maximum of 37°C (98°F), residents and visitors can enjoy a warm yet more manageable climate. The average temperature holds steady around 29°C (85°F), making it a pleasant time for outdoor activities and exploring the city's rich heritage. As the monsoon season closes, humidity tends to linger, but the cooler evenings provide a refreshing contrast to the daytime warmth, inviting everyone to experience the beauty of Lucknow during this vibrant period.
September marks a significant transition in Lucknow's climate with precipitation levels reaching 201 mm (7.9 in) over 18 rainy days. This substantial rainfall follows the preceding months of intense downpours, especially July and August, which see the highest totals of the year at 353 mm (13.9 in) and 302 mm (11.9 in) respectively. As the monsoon gradually wanes, September holds onto a considerable share of moisture, acting as a bridge to the drier months ahead. The rainfall not only nourishes the lush landscape but also indicates a trend of heavy precipitation during the monsoon season, gradually tapering off as the year progresses towards October and November, which experience a stark drop in both rainfall and rainy days.
As summer transitions to autumn in Lucknow, September brings a notable spike in humidity, registering at an impressive 90%. This month follows the peak of the monsoon season, where July and August showcase some of the highest humidity levels, climbing to 87% and 91%, respectively. After the relatively drier months of April and May, which dip to around 36% and 37%, the air becomes heavy with moisture, creating a lush, vibrant atmosphere. The decreasing humidity trend begins in October, retreating to 87%, but September's dampness serves as a reminder of the monsoon's lingering embrace, paving the way for the cooler, crisper months ahead.
As September arrives in Lucknow, the UV Index remains high at 10, indicating a very high exposure category with a burn time of just 15 minutes. This month marks a slight decrease from the extreme levels experienced in July and August, where the UV Index peaked at 12. Nonetheless, it's essential to remain cautious, as September still demands vigilant sun protection practices. The trend throughout the summer shows a pattern of increasingly intense sun exposure, starting from a moderate 5 in January to this peak month. As we transition into the cooler months ahead, the Index will gradually fall, but for now, enjoy the sunshine while prioritizing your skin's safety. For more detailed insights, check the full report on Lucknow UV Index.
UV Risk Categories
As September unfolds in Lucknow, the city enjoys a delightful 290 hours of sunshine, marking a gentle transition from the monsoon's end to the embrace of autumn. This month, while slightly lower than the sun-soaked highs of May at 364 hours, reflects a stable pattern of abundant light following the peak summer months. April and May stand out as the sunniest, but the gradual decline in sunshine hours towards the year-end indicates the shifting seasons. Interestingly, September's sunshine is notably higher than the drearier July and August, making it an inviting time for locals and visitors alike to experience the vibrant charm of the city basked in golden light. As autumn approaches, the balance of daylight hours suggests a pleasant climate, setting the stage for vibrant cultural festivities in the months ahead.
As summer transitions into autumn, September in Lucknow, India, brings a moderate 32% chance of sunny weather. This marks a noticeable increase from the sunniest months of the year, like January through April, which boast probabilities ranging from 75% to 89%. However, it is a stark contrast to the drizzly monsoon season, where chances plummet to as low as 12% in August and 15% in July. While September may still be clouded by residual monsoon effects, the slight uptick in sunny days offers a glimpse of the brighter October ahead, which enjoys a consistent 83% chance of sunshine. This transition period hints at a more temperate climate, making it an intriguing time for those eager to experience a shift from the intense rains to clearer skies.
As September arrives in Lucknow, India, the daylight starts to wane from the summer's peak, offering a balanced 12 hours of light each day. Following the sun-drenched months of May through August, where daylight consistently reached 13 hours, September represents a gentle transition into the shorter days of autumn. This month marks a noticeable shift, echoing the rhythmic ebb and flow of daylight throughout the year. After September, October and November usher in even shorter days, with just 11 hours and 10 hours respectively. Overall, Lucknow's daylight duration reflects a captivating cycle, highlighting the gradual decrease in daylight hours as we move towards the cooler months.
As September unfolds in Lucknow, India, the city experiences a refreshing uptick in its average wind speed, reaching 3.3 m/s (7 mph), the highest point of the year. This gentle breeze brings relief from the summer heat, accentuating the gradual transition into the cooler autumn months. In contrast to the more stable wind patterns seen in the earlier months—peaking at 2.9 m/s during the spring and summer months—the September winds invigorate the atmosphere, hinting at the changing seasons ahead. Following this spirited gust of September, a notable decline is observed in October and November, where winds drop back to a more tranquil pace, settling at 2.0 m/s and 1.9 m/s, respectively. This seasonal rhythm not only marks a shift in weather but invites residents to embrace the outdoor charm of Lucknow as nature prepares for its cooler embrace.
Weather in Lucknow varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Lucknow, focusing on differences in temperature, rainfall, humidity, and UV levels.
September weather is characterized by high temperatures, with minimums around 23°C (74°F) and average highs reaching 37°C (98°F), making it notably warm and humid, with a humidity level of 90%. In contrast, January features much cooler temperatures, with a minimum of 3°C (38°F) and an average of 14°C (58°F), making it feel significantly crisper and more manageable. Additionally, precipitation in September is abundant, totaling 201 mm (7.9 in) over 18 days, while January sees minimal rainfall of just 25 mm (1.0 in) across only 2 days, contributing to a drier atmosphere. For more detailed information, you can visit Lucknow weather in January.
September and February present quite contrasting weather conditions. In September, the temperatures are notably high, with a minimum of 23°C (74°F) and average reaching up to 29°C (85°F), peaking at 37°C (98°F). This month is characterized by significant rainfall, with precipitation totaling 201 mm (7.9 in) over 18 days, accompanied by a high humidity level of 90%. In stark contrast, February boasts cooler temperatures, with a minimum of 7°C (44°F) and an average of 18°C (65°F), and a maximum that reaches 33°C (91°F). This month experiences much less rainfall, accumulating only 17 mm (0.7 in) over just 2 days, along with a significantly lower humidity level of 63%. For a detailed look at February weather, check this link: Lucknow weather in February.
September and March present distinctly different weather patterns. In September, temperatures range from a minimum of 23°C (74°F) to a scorching maximum of 37°C (98°F), accompanied by high humidity levels of 90% and considerable rainfall of 201 mm (7.9 in) over 18 days. This month tends to be muggy and wet. Conversely, March experiences milder temperatures, with a minimum of 10°C (50°F) and a pleasant average of 24°C (76°F), peaking at 40°C (105°F). Precipitation is minimal in March, with only 19 mm (0.7 in) over just 2 days, and humidity drops significantly to 53%. For a detailed look at weather specifics, check out Lucknow weather in March.
In comparing the weather of September and April, notable differences emerge. September tends to be quite warm, with temperatures ranging from a minimum of 23°C (74°F) to a maximum of 37°C (98°F) and an average temperature of 29°C (85°F). This month also experiences significant rainfall, totaling 201 mm (7.9 in) across 18 days, coupled with high humidity levels of 90%. In contrast, April is markedly hotter, featuring a minimum temperature of 17°C (63°F) and soaring to a maximum of 44°C (111°F), with an average of 30°C (87°F). However, it is much drier, receiving only 10 mm (0.4 in) of precipitation over just 3 days, and the humidity is relatively low at 36%. For more detailed insights, you can check Lucknow weather in April.
September and May present contrasting weather patterns. In September, temperatures range from a minimum of 23°C (74°F) to a maximum of 37°C (98°F), with an average of 29°C (85°F), and the month is characterized by high humidity at 90%. Additionally, September experiences significant rainfall, totaling 201 mm (7.9 in) over 18 days. In contrast, May is much hotter, with temperatures fluctuating from 21°C (70°F) to a scorching 45°C (113°F), averaging 32°C (91°F). The precipitation in May is minimal, with only 32 mm (1.2 in) over just 5 days, and humidity levels are considerably lower at 37%. For more detailed information, you can check Lucknow weather in May.
When comparing the weather in September and June, a few notable differences emerge. In June, temperatures soar with averages reaching 32°C (91°F) and maximums peaking at 44°C (112°F), making it significantly hotter than September, where the average temperature is a more moderate 29°C (85°F) with maximums of 37°C (98°F). Additionally, June experiences lower humidity at 56% compared to September's high humidity of 90%, which can make the latter feel much more oppressive. Precipitation is also more pronounced in September, totaling 201 mm (7.9 in) over 18 days, while June has only 96 mm (3.8 in) spread over 12 days. For more detailed information on June weather, you can check Lucknow weather in June.
When comparing the weather in September and July, September tends to be slightly cooler, with average temperatures ranging from a minimum of 23°C (74°F) to a maximum of 37°C (98°F), while July is warmer, showcasing a minimum of 24°C (76°F) and a peak of 39°C (102°F). Additionally, September experiences significant rainfall with 201 mm (7.9 in) over 18 days, whereas July has even higher precipitation levels at 353 mm (13.9 in) across 24 days. Humidity remains high in both months, with September at 90% and July slightly lower at 87%. For a more detailed insight, you can check Lucknow weather in July.
In comparing the weather of September to August, we see some notable differences. September generally has slightly cooler temperatures, with a minimum of 23°C (74°F) and a maximum of 37°C (98°F), while August features a higher minimum of 25°C (77°F) and a maximum of 36°C (97°F). Precipitation is also reduced in September, totaling 201 mm (7.9 in) over 18 days, compared to August's much wetter conditions with 302 mm (11.9 in) over 27 days. Humidity levels remain high in both months, with September at 90% and August at 91%. For more detailed information on August weather patterns, you can visit Lucknow weather in August.
In September, the weather is characterized by high temperatures, with a minimum of 23°C (74°F) and an average of 29°C (85°F), frequently reaching up to 37°C (98°F). This month experiences considerable precipitation, with 201 mm (7.9 in) of rain over 18 days and high humidity levels at 90%. In contrast, October brings cooler temperatures, with a minimum of 16°C (60°F) and an average of 27°C (81°F), while the maximum temperature remains similar at 36°C (98°F). Notably, October sees a significant drop in rainfall to just 14 mm (0.6 in) over only 2 days, and humidity decreases slightly to 87%. For more details, check Lucknow weather in October.
September and November present strikingly different weather patterns. In September, temperatures range from a minimum of 23°C (74°F) to a scorching maximum of 37°C (98°F), with an average of 29°C (85°F). This month also experiences significant rainfall, totaling 201 mm (7.9 in) over 18 days, accompanied by high humidity at 90%. In contrast, November showcases a much cooler climate, with temperatures dropping to a minimum of 10°C (49°F) and peaking at 33°C (91°F), averaging 21°C (70°F). Remarkably, November sees almost no precipitation, with only 2 mm (0.1 in) recorded across the month, and the humidity is slightly lower at 85%. For more details on November weather, visit Lucknow weather in November.
September and December exhibit strikingly different weather patterns. In September, temperatures range from a minimum of 23°C (74°F) to a scorching maximum of 37°C (98°F), with an average temperature of 29°C (85°F). The month is characterized by significant rainfall, totaling 201 mm (7.9 in) over 18 days, and high humidity levels at 90%. In contrast, December experiences a much cooler climate, with temperatures dropping to a minimum of 4°C (39°F) and maxing out at 29°C (84°F), resulting in an average temperature of 16°C (60°F). Additionally, December is dry, with only 11 mm (0.4 in) of precipitation occurring over 0 days and a lower humidity level of 82%. For more detailed information on December weather, visit Lucknow weather in December.
As September unfolds in Lucknow, the weather sees a notable transition from the intense heat of summer to a more tempered climate. With average temperatures settling around a comfortable 29°C and humidity levels soaring to 90%, the city experiences a lingering summer feel, albeit with refreshing rain that accompanies this month. The 201 mm of precipitation over 18 days transforms the landscape, bringing much-needed relief from the sweltering heat that peaks at a maximum of 37°C. This month stands out as a time of rejuvenation, where the monsoon's essence combines with the remnants of warmth, making it a uniquely dynamic period in the year. To explore more about how the climate affects a visit to the city, check out Lucknow Climate.