September weather forecast
Mettur, India

September, the last month of the rainy (monsoon) season in Mettur, is also a hot month, with an average temperature ranging between max 32°C (89.6°F) and min 22.2°C (72°F).

Temperature

The arrival of September sees an average high-temperature of a still hot 32°C (89.6°F), hardly diverging from August's 32.3°C (90.1°F). Mettur experiences an average temperature drop to a pleasant 22.2°C (72°F) during September nights.

Heat index

In September, the heat index is calculated to be a scorching 40°C (104°F). More protective measures are required - heat exhaustion and heat cramps are likely. Heatstroke may follow lengthy activity.
When assessing, remember that heat index measurements are for light winds and shaded spots. Exposing to direct sunshine may enhance heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', comes about by integrating the temperature readings with the humidity levels. The effect of weather is individual, with a variety of people experiencing it differently due to distinctions in body mass, height, and level of activity. Consider that direct sun exposure can intensify the felt heat, adding potentially 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are especially crucial for babies and toddlers. Children typically face more danger than adults as their sweat production is usually lower. Additionally, the bigger skin surface compared to their small size and the increased heat due to their activeness exacerbate the risk.
Perspiration is essential for the human body; it facilitates cooling through the process of sweat evaporation. With an abundance of moisture present in the air, the process of evaporation becomes less effective, and the body fails to cool down as it should, leading to the sensation of overheating. As the body accumulates more heat than it can release, body temperature goes up, increasing the risk of heat-related health issues.

Humidity

The average relative humidity in September in Mettur is 70%.

Rainfall

In Mettur, in September, during 22.2 rainfall days, 92mm (3.62") of precipitation is typically accumulated. In Mettur, during the entire year, the rain falls for 181.8 days and collects up to 755mm (29.72") of precipitation.

Daylight

In September, the average length of the day is 12h and 11min.
On the first day of September in Mettur, sunrise is at 6:08 am and sunset at 6:28 pm. On the last day of the month, sunrise is at 6:07 am and sunset at 6:09 pm IST.

Sunshine

In Mettur, the average sunshine in September is 8.9h.

UV index

The average daily maximum UV index in September in Mettur is 7. A UV Index reading of 6 to 7 represents a high health risk from exposure to the Sun's UV rays for the average person.
Note: In September, the average maximum UV index of 7 translates into the following recommendations:
Exercise precautions and adapt sun safety practices. Defence against skin and eye affliction is paramount. Avoid direct Sun exposure from 10 a.m. to 4 p.m., a period when UV radiation is most intense, and remember that not all shade structures provide full protection. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear.