September Weather in Poonamalle, India

Last updated: August 23, 2025

In Poonamalle, India, the average temperature in September hovers around 29°C (85°F). Expect a comfortable minimum of 24°C (76°F), while the mercury can rise to a sizzling 36°C (97°F). However, brace for 143 mm (5.6 in) of precipitation over 19 days, and don't forget the humidity, which averages a tropical 79%.

September Temperature in Poonamalle

In September, in Poonamalle, the average temperature is 29°C (85°F). The maximum can reach 36°C (97°F), while the minimum can be as low as 24°C (76°F). It’s a great time to visit Poonamalle if you enjoy warm weather and outdoor activities.

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

The chart illustrates September temperature patterns in Poonamalle, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Poonamalle, September typically has an average temperature of 29°C (85°F), with highs reaching up to 36°C (97°F) and lows dropping to around 24°C (76°F).

Data source: Temperature data for Poonamalle generated using information from the Copernicus Climate Change Service.

September Precipitation in Poonamalle

In Poonamalle in September, the total precipitation amount is 143 mm (5.6 in) spread over 19 days.

September Precipitation Trends in Poonamalle

The chart displays monthly precipitation patterns in Poonamalle, 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 Poonamalle, September typically receives around 143 mm (5.6 inches) of precipitation spread over approximately 19 days.

Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.

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Millimeters (mm) Inches (in)

September Humidity in Poonamalle

In Poonamalle in September, humidity is 79%. With an average temperature of 29°C (85°F), this humidity feels like a heavy blanket wrapping around you, making travel feel sticky and exhausting.

September Average Humidity in Poonamalle

This chart illustrates the average monthly humidity levels in Poonamalle, 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 Poonamalle is approximately 79%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Poonamalle

In Poonamalle in September, the maximum UV index reaches 13, which corresponds to an extreme Exposure Category. With a time to burn of just 10 minutes, it's crucial to take protective measures. For detailed information, you can check the Hourly UV Index in Poonamalle.

Maximum UV Index Levels in Poonamalle for September

The chart shows the monthly maximum UV Index (UVI) for Poonamalle 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 Poonamalle typically reaches 13, which falls under the extreme exposure category.

Data source: Poonamalle 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.

How September Weather in Poonamalle Compares to Other Months

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

This table compares monthly weather conditions in Poonamalle, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	25°C (78°F)	28 mm (1.1 inches)	73%	very high
February Weather	26°C (79°F)	6 mm (0.3 inches)	64%	extreme
March Weather	29°C (84°F)	6 mm (0.3 inches)	51%	extreme
April Weather	31°C (88°F)	10 mm (0.4 inches)	50%	extreme
May Weather	32°C (90°F)	19 mm (0.7 inches)	62%	extreme
June Weather	32°C (90°F)	80 mm (3.1 inches)	68%	extreme
July Weather	31°C (88°F)	130 mm (5.1 inches)	59%	extreme
August Weather	30°C (86°F)	141 mm (5.5 inches)	72%	extreme
September Weather	29°C (85°F)	143 mm (5.6 inches)	79%	extreme
October Weather	28°C (83°F)	170 mm (6.7 inches)	88%	extreme
November Weather	27°C (80°F)	284 mm (11.2 inches)	89%	very high
December Weather	26°C (78°F)	86 mm (3.4 inches)	85%	very high