September weather forecast
Nacharam, India

The last month of the rainy (monsoon) season, September, is another warm month in Nacharam, India, with an average temperature fluctuating between 22°C (71.6°F) and 29.2°C (84.6°F).

Temperature

With the start of September, Nacharam measures an average high-temperature of a still moderately hot 29.2°C (84.6°F), not significantly differing from August's 28.8°C (83.8°F). September nights are marked by an average temperature drop to a pleasant 22°C (71.6°F).

Heat index

September's mean heat index is evaluated at a fiery hot 35°C (95°F). Greater preventive actions are needed, heat exhaustion and heat cramps are likely. Persistent activity could provoke heatstroke.
Factoring in the heat index, values are geared towards shaded areas with light breezes. 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 'apparent temperature', stands as a testimony to how temperature and humidity combine to impact our sense of warmth. The impact of weather is individual, with diverse individuals experiencing it differently due to variations in body mass, height, and activity levels. It is noteworthy that being in direct sunlight can enhance the weather's impact, raising the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are essentially critical for children. Young ones often underestimate the need for rest and rehydration. Thirst appears late in dehydration - hence, it is important to keep hydrated, particularly during prolonged physical activities.
When it comes to cooling down, the human body's primary method is through perspiration, making use of sweat evaporation to eliminate excess heat. Under conditions of increased relative humidity, the evaporation rate lessens, causing the body to retain more heat than under less humid conditions. The body faces dehydration threats when its cooling efforts are outpaced by excessive heat gain.

Humidity

In September, the average relative humidity is 79%.

Rainfall

In September, in Nacharam, the rain falls for 20.2 days. Throughout September, 100mm (3.94") of precipitation is accumulated. Throughout the year, there are 126.7 rainfall days, and 652mm (25.67") of precipitation is accumulated.

Daylight

The average length of the day in September is 12h and 14min.
On the first day of the month, sunrise is at 6:01 am and sunset at 6:29 pm. On the last day of September, in Nacharam, sunrise is at 6:06 am and sunset at 6:05 pm IST.

Sunshine

The average sunshine in September is 7.7h.

UV index

The months with the lowest UV index in Nacharam are January, July through December, with an average maximum UV index of 6. A UV Index estimate of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV rays for ordinary individuals.
Note: In September, the maximum UV index of 6 translates into these guidelines:
Avoid overexposure. Fair-skinned individuals can burn in under 20 minutes. Stay in the shade and limit direct sun exposure between 10 a.m. and 4 p.m., when UV radiation is at its strongest. Remember, however, that not all shade structures provide full sun protection. Stay sun-safe with clothing that is both closely woven and worn loosely.