September weather forecast
Ranibirta, Nepal

The first month of the autumn, September, is still a warm month in Ranibirta, Nepal, with temperature in the range of an average low of 23°C (73.4°F) and an average high of 29.5°C (85.1°F).

Temperature

Ranibirta transitions into September recording an average high-temperature of a moderately hot 29.5°C (85.1°F), closely aligning with the preceding month's temperature. An average minimum temperature of 23°C (73.4°F) is recorded during the month of September.

Heat index

During September, the heat index is calculated to be a torrid 36°C (96.8°F). Take greater precautions, heat exhaustion and heat cramps may be expected. Heatstroke could result from lengthy activity.
Evaluating the heat index requires understanding its values in the shade and with gentle winds. Uninterrupted exposure to the sun may boost the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', gauges the sensation of temperature factoring in the air's moisture content. A person's impression of weather can be shaped by several aspects, among them metabolic variations, pregnancy, and levels of physical activity. Do note, being directly under sun rays can amplify the heat you feel, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Young children are more at risk than adults since they tend to sweat less. Moreover, their large skin surface in proportion to their small bodies and the high heat production due to their activities contribute to their vulnerability.
To prevent overheating and help regulate its internal temperature, the human body sweat and rely on the evaporation to cool down. An upsurge in relative humidity affects normal body cooling mechanisms by slowing evaporation, hence reducing the rate at which the body cools and intensifying the perception of heat. The body faces dehydration threats when its cooling efforts are outpaced by excessive heat gain.

Humidity

The average relative humidity in September is 79%.

Rainfall

In Ranibirta, in September, during 27.7 rainfall days, 303mm (11.93") of precipitation is typically accumulated. Throughout the year, there are 207.7 rainfall days, and 2007mm (79.02") of precipitation is accumulated.

Daylight

In September, the average length of the day is 12h and 19min.
On the first day of the month, sunrise is at 5:32 am and sunset at 6:13 pm. On the last day of September, sunrise is at 5:45 am and sunset at 5:40 pm +0545.

Sunshine

The average sunshine in September is 8.4h.

UV index

The average daily maximum UV index in September in Ranibirta is 6. A UV Index value of 6 to 7 symbolizes a high health risk from unprotected exposure to Sun's UV rays for the average person.
Note: In September, the maximum UV index of 6 suggests this advice:
Avoid excessive sunlight. Those with lighter skin may experience burning in less than 20 minutes. Stay in the shade and avoid direct Sun exposure from 10 a.m. to 4 p.m., a time when UV radiation is at its strongest, and remember that parasols or canopies do not offer full protection. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses.