Last updated: August 21, 2025
In September, Thiruvananthapuram experiences a tropical climate characterized by warm temperatures and abundant rainfall. The maximum temperature reaches around 30°C (87°F), while the average hovers at a comfortable 26°C (80°F), with a minimum of 24°C (75°F). This month witnesses significant precipitation, with a total of 236 mm (9.3 in) spread across 24 days, contributing to a humidity level of 85%. The frequent rains not only create a lush green landscape but also add a refreshing charm to the city’s atmosphere, making September a uniquely vibrant time in Thiruvananthapuram.
In September, Thiruvananthapuram experiences a blend of tropical warmth and moderate humidity, with minimum temperatures settling comfortably at 24°C (75°F) and maximums reaching around 30°C (87°F). The average temperature holds steady at 26°C (80°F), reflecting a continuation of the mild climate observed in the preceding months of August and July. As the monsoon season begins to wane, September marks a subtle transition towards more consistent weather patterns. This month stands out for its gentle warmth, paralleling the temperatures seen in October, suggesting a stable climatic phase before the cooler months approach. Overall, visitors can expect pleasant conditions that invite exploration and outdoor activities amidst the lush greenery of this vibrant city.
September in Thiruvananthapuram sees a significant amount of rainfall, with a total precipitation of 236 mm (9.3 in) spread over 24 days. This month maintains the monsoon's strong grip, showcasing a steady pattern as the rain continues from the preceding months of August, which recorded an even higher rainfall of 262 mm (10.3 in). The transition into October is also noteworthy, as precipitation ramps up further to 330 mm (13.0 in), indicating a peak in monsoon activity. Overall, September exemplifies the lush, vibrant climate of Thiruvananthapuram, where the rains are both a blessing and a defining characteristic of its weather patterns.
As September rolls into Thiruvananthapuram, the humidity remains notably high at 85%, slightly dipping from the peak of 87% experienced in August. This month marks the tail end of the monsoon season, where humidity levels have been steadily climbing since June's 83%. The warm embrace of the tropics is palpable throughout these late months, with humidity levels remaining well above 80% from April onward. Overall, a discernible trend shows the city experiencing a gradual rise in humidity from the relatively drier months of January (70%) and February (64%) to the lush, humid conditions of late summer. As nature transitions, residents can expect a mix of warmth and moisture as they step into the vibrant landscape of September.
In September, Thiruvananthapuram continues to experience an extreme UV Index of 14, closely following the trends set in the summer months. This level of UV radiation means that even short exposure can lead to skin damage, with a burn time of just 10 minutes. The UV Index remains consistently high throughout the year in this region, peaking in April at 15, while September’s figures mirror the intensity of the preceding months. As the monsoon recedes, the sun's rays remain potent, reminding residents and visitors alike to take necessary precautions. For detailed insights on UV exposure, check out the Thiruvananthapuram UV Index.
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As September unfolds in Thiruvananthapuram, the city enjoys 320 hours of sunshine, marking a continuation of its relatively bright weather pattern throughout the year. This month stands as a bridge between the vibrant summer months and the onset of the cooler season, showing a slight dip from the peak sunshine recorded in March (344 hours) and April (333 hours). The consistent sunshine in September hints at a resilient tropical charm, nestled between the lingering warmth of summer and the arrival of monsoon retreats, with the rainfall gradually diminishing. Following the vibrant energy of February and March, September still offers a commendable amount of sun, ensuring that the outdoors remain inviting for locals and travelers alike. With sunshine hours remaining above 300, the city's welcoming atmosphere continues to shine brightly, making it an ideal destination for those seeking both warmth and light.
In Thiruvananthapuram, India, the likelihood of sunny weather experiences a significant fluctuation throughout the year. While the first half of the year sees a promising start in February with a sunny chance of 62%, this number steadily declines as the monsoon sets in, hitting a low of only 6% in August. As September arrives, the chance of sunshine rebounds slightly to 17%, offering a glimmer of hope amidst the lingering rains. However, this uptick remains modest when compared to the sunnier months earlier in the year, like January and December, which boast 31% and 63% chances, respectively. Overall, September indicates a transitional phase, where any sunny spells can be seen as a refreshing reprieve from the extended rainy season.
In Thiruvananthapuram, India, the daylight duration showcases a distinct rhythm throughout the year, peaking during the warmer months. September maintains this trend, offering 12 hours of daylight, much like the preceding months of April through August. This consistency in daylight hours highlights the region's relatively stable climate and extended evenings as the year begins to transition into its cooler months. As the days start to shorten in October, dropping to 11 hours, it marks a gradual shift towards the twilight of winter, reminding us of the cyclical nature of time and light in this tropical paradise.
As September arrives in Thiruvananthapuram, the winds begin to settle into a rhythm that reflects the transition of seasons. With an average wind speed of 4.5 m/s (10 mph), September shares a similar breeze to the previous months, bridging the bustling energy of the monsoon and the calmer air of the approaching autumn. Following a peak in wind speed during the rainy months of July and August, September offers a gentle yet invigorating flow that invites both local residents and travelers to venture outdoors. This consistency in wind speed suggests a balanced climatic transition, giving way to a refreshing experience before the winds decrease as the year draws to a close.
Weather in Thiruvananthapuram varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Thiruvananthapuram, focusing on differences in temperature, rainfall, humidity, and UV levels.
When comparing the weather in September and January, September experiences warmer overall temperatures, with a minimum of 24°C (75°F) and maximum of 30°C (87°F). In contrast, January sees slightly cooler temperatures, with a minimum of 21°C (71°F) and a maximum of 31°C (89°F), while maintaining an average of 26°C (80°F) in both months. September is also marked by significantly higher precipitation, recording 236 mm (9.3 in) over 24 days, whereas January has only 50 mm (2.0 in) spread across just 6 days, making it a much drier month. Additionally, the humidity levels in September are noticeably higher at 85%, compared to January's 70%. For more detailed information, you can explore Thiruvananthapuram weather in January.
In September, the weather is characterized by consistently warm temperatures with a minimum of 24°C (75°F) and an average of 26°C (80°F), reaching a maximum of 30°C (87°F). However, this month experiences significant rainfall, with 236 mm (9.3 in) of precipitation spread over 24 days, leading to a high humidity level of 85%. In contrast, February offers a slightly cooler minimum temperature of 22°C (71°F) but an average of 27°C (81°F), and peaks at a maximum of 32°C (90°F). The month is much drier, with only 27 mm (1.1 in) of precipitation over just 5 days and a lower humidity of 64%. For more detailed insights, you can check Thiruvananthapuram weather in February.
In September, the weather tends to be warmer and more humid, with average temperatures ranging from a minimum of 24°C (75°F) to a maximum of 30°C (87°F). This month also sees significant rainfall, with 236 mm (9.3 in) of precipitation over 24 days, resulting in a high humidity level of 85%. In contrast, March offers slightly cooler temperatures, with a minimum of 23°C (74°F) and a maximum of 32°C (90°F), while also being drier, receiving only 124 mm (4.9 in) of rain over 20 days and a humidity level of 66%. For more detailed information on March weather conditions, visit Thiruvananthapuram weather in March.
In September, Thiruvananthapuram experiences a warm and humid climate, with temperatures ranging from a minimum of 24°C (75°F) to a maximum of 30°C (87°F) and an average temperature of 26°C (80°F). The month is characterized by significant rainfall, totaling 236 mm (9.3 in) over 24 days, contributing to an elevated humidity level of 85%. In contrast, April brings slightly warmer conditions, with temperatures spanning from 24°C (76°F) to 32°C (89°F) and an average of 28°C (82°F). This month sees less precipitation, amounting to 180 mm (7.1 in) over 26 days, and lower humidity at 71%. For a more detailed overview, check Thiruvananthapuram weather in April.
In comparing the weather conditions of September and May, both months showcase warm temperatures, with September exhibiting a minimum of 24°C (75°F), an average of 26°C (80°F), and a maximum of 30°C (87°F). In contrast, May presents slightly higher temperatures, with a minimum of 24°C (76°F), an average of 27°C (82°F), and a maximum of 32°C (90°F). Precipitation levels are notably distinct, as September receives 236 mm (9.3 in) over 24 days, while May experiences heavier rainfall at 325 mm (12.8 in) over 28 days. Additionally, humidity levels are higher in September at 85%, compared to May’s 77%. For a closer look at weather specifics, you can check Thiruvananthapuram weather in May.
In comparing the weather of September and June, both months exhibit warm temperatures, with minimums around 24°C (75°F) and maximums peaking at 30°C (87°F). However, June has a slightly higher average temperature of 27°C (80°F) compared to September's average of 26°C (80°F). Precipitation is more pronounced in June, with 288 mm (11.3 in) over 29 days, compared to September's 236 mm (9.3 in) over 24 days, contributing to the slightly higher humidity levels in June at 83% versus September's 85%. For a detailed overview of the weather during this month, you can refer to Thiruvananthapuram weather in June.
In comparing the weather of September and July, both months exhibit similar temperature patterns, with minimum temperatures at 24°C (75°F), average temperatures around 26°C (80°F), and maximums close to 30°C (86-87°F). However, September tends to be wetter, receiving 236 mm (9.3 in) of rainfall over 24 days compared to July's 195 mm (7.7 in) during the same number of days. Humidity levels are also slightly higher in September at 85% compared to July's 86%. For a deeper insight into July’s conditions, you can check Thiruvananthapuram weather in July.
In comparing the weather between September and August, we can see that both months exhibit similar temperature ranges, with September slightly warmer at a minimum of 24°C (75°F) compared to August's 23°C (74°F). The average temperatures remain consistent, around 26°C (79°F to 80°F), while maximum temperatures reach the same peak of 30°C (87°F) in both months. However, September experiences a decrease in precipitation, with 236 mm (9.3 in) over 24 days, compared to August's 262 mm (10.3 in) and the same number of rainy days. Humidity is slightly lower in September at 85%, compared to August's 87%. For a more detailed look at August conditions, please visit Thiruvananthapuram weather in August.
Both September and October in Thiruvananthapuram feature similar temperature ranges, with minimums around 24°C (75°F), averages of 26°C (80°F), and maximums reaching 30°C (87°F). However, October experiences a significant increase in precipitation, measuring 330 mm (13.0 in) over 28 days, compared to September's 236 mm (9.3 in) across 24 days. Despite the slightly lower humidity in October at 84%, the weather remains humid and often wet, making it a continuation of the monsoon season. For more details, you can check Thiruvananthapuram weather in October.
In comparing the weather between September and November, both months exhibit relatively warm temperatures, with September seeing a minimum of 24°C (75°F) and an average of 26°C (80°F), while November records a slightly lower minimum of 22°C (72°F) but a higher maximum of 31°C (88°F). September tends to be wetter, with a total precipitation of 236 mm (9.3 in) over 24 days, compared to November’s 300 mm (11.8 in) over 23 days. Humidity levels are also similar, with September at 85% and November slightly lower at 83%. For more detailed information, you can check the Thiruvananthapuram weather in November.
In September, the weather tends to be warm and humid, with average temperatures around 26°C (80°F) and a maximum of 30°C (87°F). The month experiences significant rainfall, averaging 236 mm (9.3 in) over 24 days, contributing to a high humidity level of 85%. In contrast, December remains pleasantly warm but slightly cooler, with average temperatures at 27°C (80°F) and a high of 31°C (88°F). Rainfall is considerably less, at 111 mm (4.4 in) over just 13 days, and humidity dips to 80%. For a detailed look at December's weather in Thiruvananthapuram, refer to Thiruvananthapuram weather in December.
As September unfolds in Thiruvananthapuram, the transition from the sweltering summer months becomes evident. The average temperatures remain comfortably warm, hovering around 26°C (80°F), while humidity levels soar to 85%, creating a lush, tropical ambiance. However, what truly sets September apart is its noteworthy precipitation, with around 236 mm (9.3 in) of rain gracing the city across approximately 24 days. This monsoon burst not only rejuvenates the landscape but also brings a refreshing change from the drier preceding months. For a deeper dive into the city's weather patterns, explore Thiruvananthapuram Climate.