September weather forecast
Sion, India

September, the last month of the rainy (monsoon) season in Sion, is also a moderately hot month, with an average temperature fluctuating between 25.4°C (77.7°F) and 29.2°C (84.6°F).

Temperature

With the onset of September, Sion's average high-temperature clocks in at a still warm 29.2°C (84.6°F), showing a minor fluctuation from the previous month. In Sion, September is characterized by an average low-temperature of 25.4°C (77.7°F), indicating a minor drop from daytime highs.

Heat index

The heat index in September is calculated to be a fiery hot 36°C (96.8°F). Preventive measures are required to mitigate the risk of heat cramps and heat exhaustion. Continuous activity may precipitate heatstroke.
Heat index details are generally centered around shaded locations and a mild breeze. Direct sunshine exposure could raise heat index values by as much as 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'felt air temperature', quantifies the warmth felt when relative humidity is considered. This effect tends to be personal, with the weather perception differing among individuals due to variations in body mass, height, and exertion. By being directly under the sun, it's possible for the felt temperature to increase by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular importance for children. Typically, young kids are at a higher risk than adults since they sweat less. Also, the larger skin surface in proportion to their small bodies and the heightened heat production due to their active nature adds to their vulnerability.
In high temperatures, perspiration kicks in, allowing the human body to cool down through the evaporation of sweat. Elevated relative humidity diminishes evaporation, thereby reducing the body's ability to shed heat and creating a feeling of being too warm. The body faces dehydration threats when its cooling efforts are outpaced by excessive heat gain.

Humidity

In Sion, the average relative humidity in September is 82%.

Rainfall

In Sion, India, during September, the rain falls for 22.3 days and regularly aggregates up to 176mm (6.93") of precipitation. In Sion, India, during the entire year, the rain falls for 133.4 days and collects up to 1524mm (60") of precipitation.

Daylight

In Sion, the average length of the day in September is 12h and 15min.
On the first day of September in Sion, sunrise is at 6:23 am and sunset at 6:53 pm. On the last day of the month, sunrise is at 6:29 am and sunset at 6:27 pm IST.

Sunshine

In September, the average sunshine in Sion, India, is 7.6h.

UV index

The average daily maximum UV index in September in Sion 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 ordinary person.
Note: In September, a daily UV index of 7 turns into the following recommendations:
Persist in precautions and follow sun safety policies. Keeping sunburn at bay is imperative. The time between 10 a.m. and 4 p.m. is when UV radiation is at its peak. Limit exposure to direct sunlight during these hours. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes.