September Weather in Mannargudi, India

Last updated: August 21, 2025

September in Mannargudi, India greets residents with a mix of warmth and moisture, characterized by a maximum temperature soaring to 38°C (101°F) and an average settling at 30°C (86°F). As the month progresses, the weather cools slightly, dipping to a minimum of 24°C (76°F), offering some respite from the heat. This period also witnesses significant rainfall, with 143 mm (5.6 in) of precipitation spread over 19 days, resulting in a humidity level of 76%. The result is a lush, vibrant landscape that underscores the region's dynamic climate during this transitional month.

September Temperature in Mannargudi

In Mannargudi, India, September ushers in a slight relief from the intense summer heat, with temperatures ranging from a minimum of 24°C (76°F) to a comfortable average of 30°C (86°F), peaking at 38°C (101°F). This month reflects a gradual cooling trend, as the average temperature dips about 2°C from the scorching highs of the preceding months. While the heat persists, the transition into autumn begins to take shape, promising a more pleasant environment for locals and visitors alike. As the days remain warm, the nights cool down just enough to offer a refreshing respite, setting the stage for the cooler months ahead.

September Weather in Mannargudi: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Mannargudi, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Mannargudi, September typically has an average temperature of {2}°C ({3}°F), with highs reaching up to {4}°C ({5}°F) and lows dropping to around {6}°C ({7}°F).
JanFebMarAprMayJunJulAugSepOctNovDec788083878990888785848179
Data source: Temperature data for Mannargudi generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

September Precipitation in Mannargudi

In September, Mannargudi experiences a significant uptick in precipitation, with 143 mm (5.6 in) of rainfall spread across 19 days. This surge marks the height of the monsoon season in the region, following a steady increase from the previous months. As the rain continues to intensify from August's 104 mm, September's rainfall sets the stage for an even more substantial downpour in October, which averages 181 mm (7.1 in). The increase in rainy days reflects the region's transition into a wetter climate, contributing to the lush landscapes characteristic of this time of year. This pattern highlights the vital role September plays in replenishing local water resources before the monsoon tapers off later in the year.

September Precipitation Trends in Mannargudi

The chart displays monthly precipitation patterns in Mannargudi, with values for each month alongside September’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how September’s conditions compare to those of other months. In Mannargudi, September typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec6692123365682104143181290152
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Mannargudi

In Mannargudi, India, the month of September ushers in a noticeable rise in humidity, reaching 76%—the highest level recorded since January. This increase marks a continuation of the seasonal trend, as humidity levels begin to climb from the drier months of March to May. After June's mild rise, September's humidity serves as a precursor to the lush monsoon season that follows, where October and November see even higher averages of 87% and 88%, respectively. This pattern suggests a shift from the relatively dry summer to the more saturated conditions of the later months, highlighting Mannargudi's transition into its humid monsoon climate.

September Average Humidity in Mannargudi

This chart illustrates the average monthly humidity levels in Mannargudi, with September’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In September, average humidity in Mannargudi is approximately {2}%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec72%62%57%56%64%71%64%69%76%87%88%83%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Mannargudi

In September, Mannargudi experiences a UV Index of 13, categorized as extreme, with a burn time of just 10 minutes. This month continues the trend of high UV levels that have been prevalent since April, where the index peaked at 15. With values consistently between 12 and 14 from February through August, September's UV index sees a slight decline but remains significantly high, indicating the importance of sun protection. As we transition into October, the UV index drops to 11, signaling a gradual shift toward lower exposure risk. For more information on how to stay safe under the sun, visit Mannargudi UV Index.

Maximum UV Index Levels in Mannargudi for September

The chart shows the monthly maximum UV Index (UVI) for Mannargudi in September, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In September, the maximum UV index in Mannargudi typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec10121315121213141311109
Data source: Mannargudi September UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

September Sunshine in Mannargudi

September in Mannargudi, India, radiates with a robust 304 hours of sunshine, making it a delightful transition from the summer months. As the year unfolds, one can observe a captivating trend: the sunniest months, spanning from March to May, boast over 340 hours of sunlight, peaking in March at 346 hours. Following a slight dip in August to 309 hours, September holds steady, offering a pleasant blend of warmth and light. While the days begin to shorten in the following months, October still maintains a commendable 307 hours. Overall, the sunshine hours reflect a dynamic climate, inviting residents and visitors alike to enjoy the vibrant tapestry of Mannargudi’s weather.

Monthly Sunshine Duration in Mannargudi: September Highlighted

The September sunshine duration represents the total number of hours Mannargudi experiences direct sunlight during the month of September, excluding cloudy or obstructed periods. This chart compares the sunshine duration of September with the other months of the year.
JanFebMarAprMayJunJulAugSepOctNovDec263h310h346h343h348h330h329h309h304h307h257h297h
Data source: Mannargudi September Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Mannargudi During September

When considering the likelihood of sunny weather in September in Mannargudi, India, it's notable that the chance of sun dips to 20%—a stark contrast to the lighter, clearer skies found earlier in the year. Following the peak sunny months of February and March at 64%, and the warmer temperatures of April at 53%, the summer months take a significant downturn. From June to August, the probability of sunshine plummets, with August hitting its lowest at just 11%. As September rolls in, the sun makes a modest return but remains overshadowed by the monsoon's lingering effects. This trend indicates that while September isn't the sunniest month, it holds a slight glimmer of hope for sunny days as the region transitions out of the heavy rains.

Percentage of Sunny Days in September in Mannargudi

The chart illustrates the percentage of sunny days in Mannargudi throughout the year, with September highlighted. It highlights the variation in sunshine across each month and provides an overview of the typical frequency of sunny days, offering insights into how often Mannargudi experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec26%64%64%53%26%20%18%11%20%18%5%50%
Data source: Mannargudi September chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Mannargudi in September

In Mannargudi, India, the daylight duration showcases a consistent pattern throughout the year. Starting with 11 hours in January and February, the days gradually lengthen as spring approaches. By March, daylight increases to 12 hours, a trend that continues through the summer months of April, May, June, July, and August, highlighting the region's ample sunlight during this period. Interestingly, September also maintains this 12-hour daylight, before a gentle decline resumes in October, bringing daylight back down to 11 hours by the end of the year. This rhythmic cycle of daylight reflects the climatic transitions, offering a vibrant and predictable timeline for the residents and visitors alike.

Average Daylight Hours in Mannargudi for September

The chart illustrates the variation in daylight duration in Mannargudi throughout the year, with September highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec11h 33m11h 46m12h 3m12h 21m12h 36m12h 43m12h 40m12h 26m12h 9m11h 52m11h 37m11h 29m
Data source: Mannargudi daylight hours, calculated by summing the hours between sunrise and sunset for each day.

September Winds in Mannargudi

As September unfolds in Mannargudi, India, the average wind speed gently decreases to 2.8 m/s (6 mph), reflecting a calm transition into the autumn season. This month follows a summer of slightly brisker breezes, peaking at 3.5 m/s (8 mph) in both June and July. The steady winds of spring, averaging close to 3.0 m/s (7 mph), give way to the softer whispers of September, indicative of the region’s subtle shift towards cooler temperatures. With the decrease in wind speed, residents and visitors alike can enjoy the tranquil ambiance that accompanies this time of year, making it ideal for leisurely strolls and outdoor gatherings. As the winds slow, they usher in a more serene atmosphere, perfect for immersing oneself in the natural beauty that Mannargudi has to offer.

Average September Wind Speed in Mannargudi

The chart displays monthly wind speed patterns in Mannargudi, with values for each month shown alongside September's data, which is highlighted for easy comparison. It illustrates the average wind speed, offering insights into how September's wind conditions compare to the rest of the year.
JanFebMarAprMayJunJulAugSepOctNovDec3.03.02.52.53.23.53.53.22.8 m/s2.42.52.9
Data source: Mannargudi September wind data, generated using information from the Copernicus Climate Change Service.

How September Weather in Mannargudi Compares to Other Months

Weather in Mannargudi varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Mannargudi, focusing on differences in temperature, rainfall, humidity, and UV levels.

In September, the weather is significantly warmer and more humid compared to January, with temperatures ranging from a minimum of 24°C (76°F) to a maximum of 38°C (101°F) and an average of 30°C (86°F). The month also experiences considerable rainfall, with 143 mm (5.6 in) of precipitation over 19 days, resulting in a humidity level of 76%. In contrast, January features milder temperatures, with a minimum of 19°C (67°F) and a maximum of 32°C (89°F), averaging 26°C (79°F). This month sees less precipitation at 66 mm (2.6 in) across just 7 days and a lower humidity level of 72%. For more detailed information, you can visit Mannargudi weather in January.

September and February present contrasting weather patterns. In September, temperatures range from a minimum of 24°C (76°F) to a maximum of 38°C (101°F), with an average of 30°C (86°F). This month also sees significant rainfall, totaling 143 mm (5.6 in) over 19 days, accompanied by a high humidity level of 76%. In stark contrast, February experiences milder temperatures, with a minimum of 19°C (67°F) and a maximum of 34°C (93°F), averaging at 26°C (80°F). Precipitation is minimal in February, with just 8 mm (0.3 in) recorded over 3 days, and the humidity drops to a more comfortable 62%. For a detailed look at February weather, check out Mannargudi weather in February.

In September, the weather can be quite warm and humid, with minimum temperatures around 24°C (76°F) and average highs reaching 30°C (86°F). This month experiences significant rainfall, averaging 143 mm (5.6 in) over 19 days, resulting in a humidity level of 76%. In contrast, March offers slightly cooler temperatures, with a minimum of 21°C (69°F) and an average of 29°C (84°F), while still reaching a maximum of 38°C (100°F). Precipitation is considerably less in March, totaling only 21 mm (0.8 in) over just 4 days, and the humidity decreases to 57%. For more detailed information about the weather conditions in March, you can visit Mannargudi weather in March.

In September, the weather is characterized by a substantial amount of rainfall, receiving an average of 143 mm over 19 days, alongside a high humidity of 76%. Temperatures range from a minimum of 24°C (76°F) to a maximum of 38°C (101°F), creating a warm, yet often sticky atmosphere. In contrast, April sees slightly higher average temperatures, with a range of 24°C (76°F) to 39°C (102°F), but experiences significantly less rainfall, accumulating only 22 mm over just 5 days. The humidity drops to 56%, providing a drier and more comfortable feel compared to September. For more detailed insights into April weather, visit Mannargudi weather in April.

In comparing the weather between September and May, September tends to be slightly cooler, with average temperatures ranging from a minimum of 24°C (76°F) to a maximum of 38°C (101°F), while May features higher temperatures, with averages between 26°C (78°F) and 39°C (103°F). Additionally, September experiences significantly more precipitation, receiving 143 mm (5.6 in) over 19 days, in contrast to May's 36 mm (1.4 in) spread over just 10 days. Humidity levels in September are also higher at 76%, compared to 64% in May, making May feel less muggy. For more insights into the conditions during this month, you can explore Mannargudi weather in May.

In comparing the weather of September and June, we notice some distinct differences. September experiences slightly lower minimum and average temperatures, with a range from 24°C (76°F) to a maximum of 38°C (101°F), while June boasts a higher minimum of 26°C (78°F) and averages 32°C (90°F), peaking at a sweltering 41°C (105°F). Additionally, September tends to be wetter, with a significant precipitation of 143 mm (5.6 in) over 19 days, contrasted with June’s 56 mm (2.2 in) over only 13 days. Humidity remains higher in September at 76%, compared to June's 71%, contributing to a more oppressive feel during the month. For more details, you can check Mannargudi weather in June.

In comparing the weather of September and July, it’s evident that both months experience high temperatures, but September is slightly cooler with an average temperature of 30°C (86°F) compared to July’s 31°C (89°F). July also sees a higher maximum temperature, reaching up to 40°C (104°F), while September peaks at 38°C (101°F). Additionally, September is much wetter, with 143 mm (5.6 in) of precipitation over 19 days, compared to July’s 82 mm (3.2 in) over 17 days. Humidity levels are also higher in September at 76%, compared to 64% in July, making September feel muggier. For a more detailed look at July weather, you can visit Mannargudi weather in July.

In comparing the weather of September to August, we see that September experiences a slightly lower average temperature of 30°C (86°F) compared to August's 31°C (87°F), with both months having consistent minimums and maximums. Interestingly, September has higher precipitation levels at 143 mm (5.6 in) over 19 days, compared to August's 104 mm (4.1 in) over 18 days, resulting in a wetter month. Additionally, September's humidity is noticeably higher at 76%, while August's humidity sits at a more comfortable 69%. For more detailed insights on August weather, you can refer to Mannargudi weather in August.

In comparing the weather of September and October, we see a slight decrease in average temperatures, with September averaging 30°C (86°F) compared to October's 29°C (84°F). Both months start with warm minimum temperatures around 24°C (75°F), but October experiences more rainfall, with 181 mm (7.1 in) over 22 days compared to September's 143 mm (5.6 in) over 19 days. Additionally, October tends to be more humid, with humidity levels rising to 87%, up from September's 76%. For more detailed information on the conditions in October, you can visit Mannargudi weather in October.

In September, Mannargudi experiences warmer temperatures with an average high of 30°C (86°F) and occasional peaks reaching up to 38°C (101°F). The month is characterized by considerable humidity at 76% and 143 mm (5.6 in) of rainfall spread over 19 days. In contrast, November sees a drop in average temperatures to 27°C (81°F), with a maximum of 34°C (94°F), while the humidity rises to 88%. Rainfall significantly increases during November, totaling 290 mm (11.4 in) over 24 days, making it the wetter month. For a closer look at the weather specifics in this month, you can visit Mannargudi weather in November.

In September, the weather is typically hotter, with minimum temperatures around 24°C (76°F) and maximums reaching up to 38°C (101°F). Average temperatures hover around 30°C (86°F), and the month experiences considerable rainfall, totaling 143 mm (5.6 in) over approximately 19 days, accompanied by a humidity level of 76%.

In contrast, December brings cooler conditions, with minimum temperatures decreasing to about 20°C (68°F) and maximums around 32°C (91°F). The average temperature drops to 26°C (79°F), while precipitation slightly increases to 152 mm (6.0 in) over 15 days, with humidity rising to 83%. For a detailed look at December weather, you can refer to Mannargudi weather in December.

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Conclusion: What to Expect From September Weather in Mannargudi

As September ushers in the monsoon season, Mannargudi's weather undergoes a notable transformation. With a significant increase in humidity and frequent rainfall, this month stands apart from the drier summer months, leading to a refreshing, albeit wet, atmosphere. Average temperatures hover comfortably around 30°C, providing a respite from the oppressive heat of prior months, even as maximum highs can still reach a sweltering 38°C. With nearly 19 days of rain and a total precipitation of 143 mm, this month is ideal for nurturing the lush landscapes of the region. To explore more about the seasonal patterns that define this vibrant area, visit Mannargudi Climate.