September weather forecast
Chengannur, India

The last month of the rainy (monsoon) season, September, is another warm month in Chengannur, India, with temperature in the range of an average high of 29.9°C (85.8°F) and an average low of 23.7°C (74.7°F).

Temperature

The advent of September observes an average high-temperature of a still moderately hot 29.9°C (85.8°F), nearly identical to August's 29.2°C (84.6°F). Nighttime temperatures hover around an average low of 23.7°C (74.7°F) in September.

Heat index

The average heat index in September is computed to be a sweltering 38°C (100.4°F). Take greater precautions, heat exhaustion and heat cramps may be expected. Heatstroke could result from lengthy activity.
When considering the heat index, it's pivotal to note it is for shade and mild wind conditions. Heat index values have the potential to be boosted by 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'feels like' or 'real feel', combines air temperature and relative humidity to represent a human perceived temperature equivalent. This effect is personal, shaped by the individual's physical activity and heat sensitivity, influenced by factors including wind, clothing, and metabolic variances. Understand that direct sun rays can influence the weather's impact, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical to babies and toddlers. Young kids are often more at risk than adults as they tend to perspire less. Besides, their skin surface is larger relative to their small bodies, and their increased heat output from their active lifestyle compounds their risk.
The human body keeps its cool primarily through perspiration, as this process enables sweat to evaporate, taking away the excess heat. In situations of high air temperature combined with high humidity (significant heat index), the body's ability to perspire is reduced, heightening the sense of warmth. Exceeding the body's heat disposal threshold results in a rise in body temperature and potential thermal disorders.

Humidity

In Chengannur, India, the average relative humidity in September is 81%.

Rainfall

In Chengannur, during September, the rain falls for 21.5 days and regularly aggregates up to 135mm (5.31") of precipitation. In Chengannur, during the entire year, the rain falls for 245.5 days and collects up to 1652mm (65.04") of precipitation.

Daylight

In Chengannur, India, the average length of the day in September is 12h and 11min.
On the first day of September, sunrise is at 6:14 am and sunset at 6:32 pm. On the last day of the month, sunrise is at 6:11 am and sunset at 6:14 pm IST.

Sunshine

The average sunshine in September in Chengannur is 7.6h.

UV index

The months with the highest UV index in Chengannur are January through May, September through December, with an average maximum UV index of 7. A UV Index estimate of 6 to 7 represents a high health hazard from unprotected exposure to Sun's UV rays for average individuals.
Note: The UV index of 7 during September translates into the following guidance:
Stick with precautions and abide by sun safety procedures. Evading sunburn is essential. From 10 a.m. to 4 p.m., when UV radiation is at its strongest, limit direct exposure to the Sun and note that shade structures may not provide full sun protection. Safeguard your eyes, ears, and face from sun rays with the aid of a wide-brim hat.