September weather forecast
Longgui, China

The first month of the autumn, September, is also a hot month in Longgui, China, with an average temperature fluctuating between 31.7°C (89.1°F) and 23.9°C (75°F).

Temperature

The shift to September signals an average high-temperature of a still tropical 31.7°C (89.1°F), subtly varied from August's 33.4°C (92.1°F). Longgui reports a consistent average low-temperature of 23.9°C (75°F) throughout September nights.

Heat index

For most parts of September, the heat index is computed to be a blistering 42°C (107.6°F). Exercise enhanced safety steps, heat cramps and heat exhaustion are probable. Heatstroke could be a result of sustained activity.
Records show heat index calculations are tailored for shaded regions and mild winds. A direct sunlight exposure may boost the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'felt air temperature', shows a temperature sensation when both heat and moisture conditions are combined. The impact of weather is individual, with diverse individuals experiencing it differently due to variations in body mass, height, and activity levels. One must note that being under the direct sun can escalate the heat's effects, with the heat index possibly rising by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical to babies and toddlers. Youths are typically more endangered than adults since they usually sweat less. Their larger skin surface concerning their smaller bodies and higher heat production due to activity further adds to their vulnerability.
Perspiration is essential for the human body; it facilitates cooling through the process of sweat evaporation. Heightened relative humidity interferes with the body's usual cooling mechanism by reducing evaporation, subsequently decreasing the body's cooling rate and increasing the sensation of heat. Overheating can ensue when the body accumulates more heat than it can release, and dehydration severity may vary.

Humidity

The average relative humidity in September is 77%.

Rainfall

In Longgui, during September, the rain falls for 18.8 days and regularly aggregates up to 80mm (3.15") of precipitation. In Longgui, during the entire year, the rain falls for 204.3 days and collects up to 1022mm (40.24") of precipitation.

Daylight

The average length of the day in September in Longgui is 12h and 17min.
On the first day of September, sunrise is at 06:08 and sunset at 18:44. On the last day of the month, sunrise is at 06:18 and sunset at 18:15 CST.

Sunshine

In September, the average sunshine is 8h.

UV index

The average daily maximum UV index in September in Longgui is 6. A UV Index of 6 to 7 symbolizes a high health hazard from unsafe exposure to UV radiation for the ordinary person.
Note: An average UV index of 6 in September transforms into this advice:
Inhibit overexposure. Warding off sun damage is of utmost importance. Avoid direct Sun exposure and seek shade between 10 a.m. and 4 p.m., when UV radiation is at its peak, but keep in mind that not all shade structures provide complete protection. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized.