Last updated: August 21, 2025
In September, Tiruchirappalli experiences a blend of warmth and humidity, with maximum temperatures peaking at 39°C (102°F) and an average of 30°C (86°F). The minimum temperature can dip to a comfortable 24°C (76°F), providing a respite from the heat. This month also brings considerable rainfall, with a total of 127 mm (5.0 in) over 18 days, resulting in a high humidity level of 76%. As the monsoon season sets in, expect a mix of hot days and refreshing showers, characterizing the vibrant climate of this bustling city.
In September, Tiruchirappalli experiences a transitional climate, marking the tail end of the sweltering summer months. With minimum temperatures around 24°C (76°F) and an average of 30°C (86°F), the heat remains palpable, yet there’s a slight drop from the peak summer highs. The maximum temperature eases to 39°C (102°F), hinting at a gradual shift as the monsoon starts to recede. This month typically brings a respite from the relentless heat of summer, creating a more bearable environment for both residents and visitors alike. Overall, September represents a blend of warmth and humidity, setting the stage for the cooler months just around the corner.
In Tiruchirappalli, India, September marks a significant shift in precipitation patterns, as the city receives a notable 127 mm (5.0 in) of rain over 18 days. This substantial increase from the preceding months showcases the onset of the monsoon season, following August's 81 mm (3.2 in), where rain begins to intensify. The trend continues into October, with precipitation climbing further to 143 mm (5.6 in), culminating in even heavier rainfall by November, when 212 mm (8.4 in) falls over 21 days. This pattern highlights a clear escalation in rainfall as the months progress, transforming September into a pivotal transitional period of increased moisture for the region.
September in Tiruchirappalli, India, marks a noticeable shift in humidity levels, with the average reaching 76%—a significant increase from the preceding months. After a relatively dry spell in March and April, which saw humidity dip to 57% and 56% respectively, the atmosphere begins to thicken in anticipation of the monsoon's end. Following the trend of rising humidity observed from June onwards, September stands out as a pivotal moment, where the lushness of the environment becomes palpable, hinting at the approaching October peak of 87%. This increase not only enhances the sensation of warmth but also contributes to the region's vibrant post-monsoon landscape, setting the stage for the humidity levels to persist well into the latter months of the year.
In September, Tiruchirappalli continues to experience an extreme UV Index of 13, maintaining the high intensity seen throughout the summer months. As with the previous several months, the burn time for unprotected skin is a mere 10 minutes, emphasizing the need for effective sun protection strategies. This trend of consistently high UV levels, peaking in April with a UV Index of 15, showcases the region's relentless sun exposure during this period. As the year progresses into the cooler months, there is a slight decrease to 12 in October and subsequently to 11 in November, yet the risks remain substantial throughout. For more detailed information on sun safety in this southern Indian city, check the Tiruchirappalli UV Index.
UV Risk Categories
September in Tiruchirappalli, India, greets locals and visitors with a warm embrace of sunshine, showcasing 298 hours of bright daylight. This marks a slight dip from the previous months, yet the sun remains a constant companion as it gradually shifts from the peak summer days of May and June, which basked in over 340 hours of sunlight. The trend reveals a subtle transition toward the cooler months, yet September still holds on to a generous amount of sunshine compared to the declining hours in October and November. As the year progresses, the city balances warmth with the promise of the fall season, creating a perfect backdrop for outdoor adventures and vibrant festivities.
In Tiruchirappalli, India, the likelihood of sunny weather in September tends to be relatively low, at just 19%. This trend is consistent with the preceding months, where the chance of sunlight plummets during the monsoon season, culminating in August's lowest prediction of merely 10%. As the year progresses, the chances of sunshine begin to recover, notably in February and December, where figures rise to 67% and 56%, respectively. Overall, September stands out as a transitional month, where the lingering effects of the rainy season continue to influence weather patterns, leaving locals and visitors alike yearning for brighter days ahead.
In Tiruchirappalli, India, the patterns of daylight duration throughout the year reveal a captivating trend. The year begins with a consistent 11 hours of daylight in January and February, gradually increasing to 12 hours by March. This 12-hour span remains steady from March through August, highlighting the region’s relatively stable daylight during the warmer months. As September rolls in, the daylight duration holds firm at 12 hours, before transitioning back to 11 hours in October. This subtle shift signals the approach of shorter days as the year winds down, creating a rhythmic cycle that reflects the interplay between the seasons and the sun’s journey across the sky.
September in Tiruchirappalli brings a refreshing shift in wind patterns, with an average speed of 2.9 m/s (7 mph). This marks a slight uptick from the summer months, suggesting the onset of transitional breezes as the region moves toward the cooler autumn. Notably, September's winds hold steady, paralleling the gentle gusts seen in May. While the summer months of June and July peak with invigorating winds averaging over 4 m/s, they gradually taper off, leading into the milder conditions typical of fall. As the year progresses, the winds in Tiruchirappalli fluctuate gently, but September’s breezes offer a delightful reminder of the changing seasons, blending the warmth of summer with the cool anticipation of autumn.
Weather in Tiruchirappalli varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Tiruchirappalli, focusing on differences in temperature, rainfall, humidity, and UV levels.
September and January present markedly different weather conditions. In September, temperatures reach a minimum of 24°C (76°F) and can soar to a maximum of 39°C (102°F), with an average temperature of 30°C (86°F). This month experiences significant rainfall, with about 127 mm (5.0 in) of precipitation over 18 days, accompanied by high humidity at 76%. In contrast, January is cooler, featuring a minimum temperature of 19°C (66°F), an average of 26°C (79°F), and a maximum of 35°C (95°F). Precipitation drops dramatically to 41 mm (1.6 in) over just 4 days, and humidity levels decrease slightly to 72%. For more detailed information, you can visit Tiruchirappalli weather in January.
When comparing the weather between September and February, a stark contrast emerges. September experiences substantially higher temperatures, with a minimum of 24°C (76°F) and an average of 30°C (86°F), reaching a maximum of 39°C (102°F). This month also sees significant precipitation, averaging 127 mm (5.0 in) over 18 days, coupled with a high humidity level of 76%. In contrast, February boasts milder temperatures, with a minimum of 18°C (64°F) and an average of 27°C (81°F), peaking at 37°C (99°F). Furthermore, February is characterized by much lower precipitation, receiving only 4 mm (0.2 in) over just 1 day, and a reduced humidity level of 62%. For more detailed insights on the weather in February, you can check Tiruchirappalli weather in February.
In September, the weather is characterized by high humidity at 76% and significant rainfall, with 127 mm of precipitation over 18 days. The temperatures range from a minimum of 24°C (76°F) to a maximum of 39°C (102°F), with an average of 30°C (86°F). In contrast, March experiences slightly cooler minimum temperatures of 20°C (69°F) and a maximum of 40°C (104°F), while maintaining the same average of 30°C (86°F). However, March is considerably drier, with only 16 mm of precipitation over just 3 days and a lower humidity level of 57%. For more detailed information, visit Tiruchirappalli weather in March.
In comparing the weather of September and April, we observe notable differences in temperature, precipitation, and humidity. September typically sees temperatures ranging from a minimum of 24°C (76°F) to a maximum of 39°C (102°F) with an average of 30°C (86°F). This month experiences significant rainfall, with 127 mm (5.0 in) spread over 18 days and a high humidity level of 76%. In contrast, April features slightly higher temperatures, with a minimum of 24°C (75°F) and a maximum of 41°C (107°F), averaging 32°C (90°F). Precipitation is considerably lower in April, totaling just 16 mm (0.6 in) over 4 days, and the humidity is also reduced at 56%. For a deeper look into the weather specifics during this time, check out Tiruchirappalli weather in April.
In comparing the weather between September and May, September tends to have slightly cooler temperatures, with an average high of 30°C (86°F) compared to May's higher average of 32°C (91°F). However, May can reach scorching maximum temperatures of 42°C (108°F), exceeding September's peak of 39°C (102°F). Additionally, September experiences more precipitation, with 127 mm (5.0 in) falling over 18 days, while May sees significantly less rain at 42 mm (1.7 in) across 10 days. Humidity levels also differ, with September being more humid at 76%, compared to May's 64%. For more detailed information, you can check Tiruchirappalli weather in May.
In comparing the weather of September and June, September tends to be slightly cooler with average temperatures ranging from a minimum of 24°C (76°F) to a maximum of 39°C (102°F), while June sees higher averages with a minimum of 26°C (78°F) and a maximum of 42°C (107°F). June experiences less rainfall, with only 50 mm (2.0 in) over 9 days compared to September's 127 mm (5.0 in) over 18 days. Additionally, the humidity in September is higher at 76%, whereas June has a more moderate humidity level of 71%. For a more detailed look at June conditions, you can visit Tiruchirappalli weather in June.
When comparing the weather in September and July, we see some notable differences. In September, temperatures range from a minimum of 24°C (76°F) to a maximum of 39°C (102°F), with an average of 30°C (86°F). The month also sees increased precipitation, averaging 127 mm (5.0 in) over 18 days, contributing to higher humidity levels of 76%. In contrast, July is slightly warmer, with temperatures ranging from a minimum of 25°C (77°F) to a maximum of 40°C (104°F) and an average of 31°C (89°F). However, July experiences less rainfall, totaling 61 mm (2.4 in) over only 12 days, and a lower humidity level of 64%. For more details on July weather, you can visit Tiruchirappalli weather in July.
In comparing the weather between August and September, it is evident that September tends to be slightly cooler, with average temperatures reaching 30°C (86°F) compared to August's average of 31°C (88°F). Although both months have the same minimum temperature of 24°C (76°F), September registers a slightly lower maximum temperature of 39°C (102°F), compared to August's peak of 40°C (105°F). Additionally, September experiences higher precipitation levels at 127 mm (5.0 in) over 18 days, while August sees 81 mm (3.2 in) over 13 days, indicating that September is wetter and more humid with a humidity level of 76% compared to August's 69%. For a more detailed look at August's conditions, you can refer to Tiruchirappalli weather in August.
September and October showcase a gradual transition in weather patterns. In September, temperatures range from a minimum of 24°C (76°F) to a maximum of 39°C (102°F), with an average of 30°C (86°F). The month experiences about 127 mm (5.0 in) of precipitation over 18 days and maintains a humidity level of 76%. In contrast, October sees slightly cooler temperatures, with a minimum of 23°C (74°F) and a maximum of 38°C (101°F), averaging 29°C (85°F). However, it experiences more rainfall, totaling 143 mm (5.6 in) across 20 days, with humidity increasing to 87%. For more detailed insights into the climate, you can check Tiruchirappalli weather in October.
In September, the weather features warm temperatures with a minimum of 24°C (76°F) and average highs reaching 30°C (86°F), peaking at 39°C (102°F). However, this month is also marked by significant rainfall, with total precipitation of 127 mm (5.0 in) spread over 18 days and a humidity level of 76%. In contrast, November brings slightly cooler conditions, with temperatures ranging from a minimum of 22°C (72°F) to an average of 27°C (81°F), and maximums reaching 37°C (99°F). Interestingly, November is wetter, experiencing 212 mm (8.4 in) of precipitation over 21 days and a higher humidity of 88%. For further details on what to expect during November in Tiruchirappalli, visit Tiruchirappalli weather in November.
In September, weather in Tiruchirappalli is typically warmer, with temperatures ranging from a minimum of 24°C (76°F) to a maximum of 39°C (102°F), and an average temperature of 30°C (86°F). This month experiences significant rainfall, with 127 mm (5.0 in) spread over 18 days, contributing to a humidity level of 76%. In contrast, December offers a milder climate, with temperatures ranging from a minimum of 20°C (68°F) to a maximum of 33°C (91°F) and an average of 26°C (79°F). Decembers are generally drier, receiving only 112 mm (4.4 in) of precipitation across 10 days and slightly higher humidity at 83%. For more detailed information, you can check Tiruchirappalli weather in December.
September in Tiruchirappalli marks a significant transition, when the sweltering summer heat begins to wane. With average temperatures hovering around 30°C, this month offers a reprieve from the peak heat experienced in previous months, though maximum temperatures can still reach as high as 39°C. What sets September apart is the increased humidity, averaging 76%, which can make the air feel warmer. This month also sees a marked rise in precipitation, with 18 rainy days contributing to a total of 127 mm of rainfall—a welcome relief for the region as it prepares for the upcoming season. If you're looking for more insights into the weather patterns throughout the year, visit Tiruchirappalli Climate.