October weather forecast
Poonamallee, India

The first month of the post-monsoon autumn, October, is still a tropical month in Poonamallee, India, with an average temperature fluctuating between 26.2°C (79.2°F) and 31.9°C (89.4°F).

Temperature

October's arrival registers an average high-temperature of a still hot 31.9°C (89.4°F), closely aligning with the temperature of the previous month. Throughout the month of October, the nighttime temperature dips to an average of 26.2°C (79.2°F).

Heat index

During October, the heat index is appraised at a blisteringly hot 41°C (105.8°F). Implement heightened safety measures - risk of heat exhaustion and heat cramps is increased. Prolonged activity may result in heatstroke.
It is essential to grasp that the heat index's numbers are for shade and light wind settings. Exposure to unobstructed sunshine could lead to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'apparent temperature', binds temperature metrics with humidity values to give a sense of the actual warmth. The influence of weather can be personal, changing with an individual's body mass, height, and level of physical exertion. Be mindful that being in direct sunlight might mean feeling hotter, with the heat index rising by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to children. Children often fail to recognize the requirement to rest and rehydrate. Thirst, being a late symptom of dehydration, underlines the importance of maintaining hydration, especially during ongoing physical activities.
Evaporation of sweat is the main factor behind the cooling effect of perspiration in the human body. When the air holds a significant amount of moisture, the efficiency of the evaporation process is decreased, preventing the body from cooling down efficiently, leading to the sensation of overheating. Excessive heat gain, when not shed effectively by the body, can result in increasing body temperatures and related hazards.

Humidity

In Poonamallee, the average relative humidity in October is 72%.

Rainfall

In Poonamallee, in October, during 21.9 rainfall days, 142mm (5.59") of precipitation is typically accumulated. In Poonamallee, during the entire year, the rain falls for 154.8 days and collects up to 735mm (28.94") of precipitation.

Daylight

The average length of the day in October in Poonamallee is 11h and 50min.
On the first day of October, sunrise is at 5:58 am and sunset at 5:59 pm. On the last day of the month, sunrise is at 6:03 am and sunset at 5:43 pm IST.

Sunshine

The average sunshine in October in Poonamallee is 7.6h.

UV index

The months with the lowest UV index in Poonamallee, India, are January, October through December, with an average maximum UV index of 6. A UV Index of 6 to 7 symbolizes a high health risk from unprotected exposure to Sun's UV rays for the ordinary person.
Note: The maximum UV index of 6 during October translates into these guidelines:
Elude overexposure. Fair-skinned people could get burnt in less than 20 minutes. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. Employ a hat with a wide brim for robust protection, cutting UV exposure by half.