September weather forecast
Dahua, China

The first month of the autumn, September, is still a hot month in Dahua, China, with an average temperature fluctuating between 30°C (86°F) and 20.9°C (69.6°F).

Temperature

The advent of September sees the average high-temperature at a still tropical 30°C (86°F), subtly shifted from August's 31.6°C (88.9°F). Nightly temperatures drop to an average low of 20.9°C (69.6°F) in September.

Heat index

The heat index for September is appraised at a torrid 37°C (98.6°F). Emphasize additional safety, risk of heat cramps and heat exhaustion is high. Continuous activity might result in heatstroke.
Heat index determinations are made taking into account the shade and light air movements. When exposed to the direct sun, the heat index may augment by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', is a measure of how hot it feels when the actual air humidity is factored in. An individual's perception of weather can be affected by a variety of elements including metabolic differences, being pregnant, and their level of physical exertion. One's exposure to direct sunlight has the potential to intensify the heat sensation, increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical to babies and toddlers. Children usually face more risks than adults as their ability to sweat is less. Additionally, their larger skin surface in relation to their petite bodies and higher heat output due to their activities increases their vulnerability.
To cool down, the human body relies on perspiration, a process where excessive heat is eliminated as sweat evaporates. With a high level of moisture in the air, the evaporation process becomes less efficient, preventing the body from cooling down efficiently and resulting in a sensation of overheating. When heat gain exceeds the level the body can remove, body temperature begins to rise, and heat-related illnesses and disorders may develop.

Humidity

In September, the average relative humidity is 79%.

Rainfall

In September, the rain falls for 19.9 days. Throughout September, 102mm (4.02") of precipitation is accumulated. Throughout the year, there are 206.1 rainfall days, and 1090mm (42.91") of precipitation is accumulated.

Daylight

In September, the average length of the day is 12h and 17min.
On the first day of the month, sunrise is at 06:29 and sunset at 19:06. On the last day of September, sunrise is at 06:39 and sunset at 18:36 CST.

Sunshine

The month with the most sunshine is September, with an average of 7.9h of sunshine.

UV index

In Dahua, the average daily maximum UV index in September is 6. A UV Index of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV radiation for average individuals.
Note: A maximum UV index of 6 in September translates into the following recommendations:
Refrain from overexposure. Fair-skinned individuals could burn in under 20 minutes. Minimize exposure to direct sunlight and seek shade from 10 a.m. to 4 p.m., when UV radiation is most intense, but remember that shade structures may not offer complete protection. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes.