September weather forecast
Supaul, India

September, the last month of the rainy (monsoon) season in Supaul, is another hot month, with an average temperature fluctuating between 25.6°C (78.1°F) and 33.1°C (91.6°F).

Temperature

The arrival of September denotes a barely perceptible change in the average high-temperatures to a still tropical 33.1°C (91.6°F) from August's 34.3°C (93.7°F). Supaul, in the month of September, anticipates a consistent average low-temperature of 25.6°C (78.1°F).

Heat index

In September, the average heat index is estimated at a burning hot 45°C (113°F). Note: Heat exhaustion and heat cramps are probable. Heatstroke can follow with prolonged activity.
In the scope of the heat index, its values resonate with shade and light wind conditions. Heat index values may rise by up to 15 Fahrenheit (8 Celsius) degrees when exposed to direct sunlight.
Note: The heat index, also known as 'apparent temperature' or 'feels like', embodies the combination of air temperature and moisture content to illustrate perceived heat. Factors encompassing physical activity, clothing, and metabolic differences have a role in shaping the individual's impression of temperature. In the direct sunlight, the weather's impact can be amplified, possibly boosting the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important 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, followed by sweat evaporation, is the human body's chief method to maintain a balanced temperature. With higher relative humidity, the rate of evaporation is reduced, resulting in increased heat retention in the body compared to drier air. Potential thermal conditions emerge as the body's heat gain outpaces its cooling mechanisms.

Humidity

The months with the highest humidity are July and September, with an average relative humidity of 73%.

Rainfall

In Supaul, during September, the rain falls for 21.5 days and regularly aggregates up to 141mm (5.55") of precipitation. In Supaul, during the entire year, the rain falls for 131.9 days and collects up to 787mm (30.98") of precipitation.

Daylight

In September, the average length of the day is 12h and 19min.
On the first day of the month, sunrise is at 5:23 am and sunset at 6:03 pm. On the last day of September, sunrise is at 5:35 am and sunset at 5:31 pm IST.

Sunshine

The average sunshine in September is 8.5h.

UV index

The average daily maximum UV index in September is 7. A UV Index reading of 6 to 7 represents a high threat to health from exposure to the Sun's UV rays for average individuals.
Note: In September, the average maximum UV index of 7 translates into the following recommendations:
Adopt measures and apply sun safety strategies. Shielding from skin and eye damage is necessary. 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. During bright days, sunglasses that offer UVA and UVB defense are recommended.