September weather forecastVaniyambalam, India

Weather in September

September, the last month of the rainy (monsoon) season in Vaniyambalam, is also a moderately hot month, with an average temperature ranging between min 21.5°C (70.7°F) and max 29.5°C (85.1°F).

Temperature

September registers an average high-temperature of a still warm 29.5°C (85.1°F), slightly varied from August's 28.4°C (83.1°F). During the month of September, Vaniyambalam experiences a steady low-temperature average of 21.5°C (70.7°F).

Heat index

September's mean heat index is calculated to be a torrid 37°C (98.6°F). Implement additional preventive actions, heat cramps and heat exhaustion are potential hazards. Heatstroke could follow prolonged activity.
Heat index evaluations are typically in the context of light winds and shaded environments. When exposed to the direct sun, the heat index may augment by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', marries air temperature and humidity to produce a value illustrating perceived warmth. The influence of weather is personal, differing among individuals based on variations in body mass, stature, and the degree of physical exertion. Realize that direct exposure to sunlight can augment the felt heat, leading to a potential increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Children often miss understanding the importance of rest and rehydration. Thirst usually appears late during dehydration - therefore, maintaining hydration, particularly during long physical activities, is essential.
Humans rely on perspiration as a cooling mechanism, wherein the evaporating sweat counteracts excessive warmth. An increase in relative humidity hinders the body's normal cooling function by reducing evaporation, thereby decreasing the rate of body cooling and enhancing the sense of warmth. When the heat gained surpasses the body's cooling capacity, temperatures rise, signaling potential health concerns.

Humidity

The average relative humidity in September is 83%.

Rainfall

In Vaniyambalam, during September, the rain falls for 23 days and regularly aggregates up to 125mm (4.92") of precipitation. Throughout the year, there are 240 rainfall days, and 1446mm (56.93") of precipitation is accumulated.

Daylight

In September, the average length of the day is 12h and 11min.
On the first day of the month, sunrise is at 6:14 am and sunset at 6:34 pm. On the last day of September, in Vaniyambalam, India, sunrise is at 6:13 am and sunset at 6:15 pm IST.

Sunshine

In Vaniyambalam, India, the average sunshine in September is 7.7h.

UV index

May through December, with an average maximum UV index of 6, are months with the lowest UV index. A UV Index value of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV radiation for the ordinary person.
Note: The UV index of 6 in September translates into these instructions:
Take precautions and adopt sun safety practices. Protection against sunburn is obliged. 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. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days.