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September Weather in Keelakarai, India

Last updated: August 23, 2025

In Keelakarai, India, the average temperature in September hovers around 29°C (85°F), making it a warm destination to visit. Expect minimums of 25°C (78°F) and maximums reaching up to 34°C (93°F). Rainfall is typical during this time, with an average precipitation of 55 mm (2.2 in) spread over 13 days. Humidity levels are high, averaging around 86%, contributing to a lush, tropical feel.

September Temperature in Keelakarai

In September in Keelakarai, the average temperature is 29°C (85°F). The maximum can reach 34°C (93°F), and the minimum can be as low as 25°C (78°F). This makes Keelakarai an ideal destination for warm-weather activities and travel during this time.

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

The chart illustrates September temperature patterns in Keelakarai, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Keelakarai, September typically has an average temperature of 29°C (85°F), with highs reaching up to 34°C (93°F) and lows dropping to around 25°C (78°F).
JanFebMarAprMayJunJulAugSepOctNovDec798083868787868584838179
Data source: Temperature data for Keelakarai generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

September Precipitation in Keelakarai

In Keelakarai in September, the precipitation amount is 55 mm (2.2 in) spread over 13 days.

September Precipitation Trends in Keelakarai

The chart displays monthly precipitation patterns in Keelakarai, 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 Keelakarai, September typically receives around 55 mm (2.2 inches) of precipitation spread over approximately 13 days.
JanFebMarAprMayJunJulAugSepOctNovDec851329414428294555192324199
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Keelakarai

In Keelakarai in September, humidity is 86%. With an average temperature of 29°C (85°F), this humidity feels like walking through a warm, enveloping blanket, making travel feel heavy and sticky as the air clings to your skin.

September Average Humidity in Keelakarai

This chart illustrates the average monthly humidity levels in Keelakarai, 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 Keelakarai is approximately 86%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec76%69%69%69%76%82%83%87%86%86%86%85%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Keelakarai

In Keelakarai in September, the maximum UV index is 14, which corresponds to an extreme Exposure Category. The time to burn is just 10 minutes, so it's crucial to take precautions. For the detailed hourly UV index in Keelakarai, you can check here.

Maximum UV Index Levels in Keelakarai for September

The chart shows the monthly maximum UV Index (UVI) for Keelakarai 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 Keelakarai typically reaches 14, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec111314141312121314121110
Data source: Keelakarai 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 Keelakarai Compares to Other Months

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

This table compares monthly weather conditions in Keelakarai, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather26°C (79°F)85 mm (3.3 inches)76%extreme
February Weather27°C (80°F)13 mm (0.5 inches)69%extreme
March Weather28°C (83°F)29 mm (1.2 inches)69%extreme
April Weather30°C (86°F)41 mm (1.6 inches)69%extreme
May Weather30°C (87°F)44 mm (1.7 inches)76%extreme
June Weather30°C (87°F)28 mm (1.1 inches)82%extreme
July Weather30°C (86°F)29 mm (1.1 inches)83%extreme
August Weather29°C (85°F)45 mm (1.8 inches)87%extreme
September Weather29°C (85°F)55 mm (2.2 inches)86%extreme
October Weather28°C (83°F)192 mm (7.5 inches)86%extreme
November Weather27°C (81°F)324 mm (12.8 inches)86%extreme
December Weather26°C (80°F)199 mm (7.8 inches)85%very high

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