September weather forecast
Tsing Fai Tong, Hong Kong

The first month of the autumn, September, is also a hot month in Tsing Fai Tong, Hong Kong, with temperature in the range of an average high of 30°C (86°F) and an average low of 26.4°C (79.5°F).

Temperature

The arrival of September coincides with an average high-temperature of a still tropical 30°C (86°F), indicating a minimal shift from August's 31.3°C (88.3°F). Tsing Fai Tong's nighttime average temperature in September subtly descends to a moderately hot 26.4°C (79.5°F) from the daily highs.

Heat index

September's average heat index is computed to be a torrid 37°C (98.6°F). Ensure extra safety steps, heat exhaustion and heat cramps are likely. Long activity might lead to heatstroke.
In the scope of the heat index, its values resonate with shade and light wind conditions. Heat index values can rise by 15 Fahrenheit (8 Celsius) degrees when in direct sunlight.
Note: The heat index, also known as 'real feel' or 'felt air temperature', comes about by integrating the temperature readings with the humidity levels. Elements such as metabolic variations, being pregnant, and physical activity can impact one's weather perception. One should be aware that direct sunshine can amplify the perceived temperature, raising the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular significance for children. 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 the human body's physiological response to high temperatures and is an attempt to lower body temperature through evaporation of sweat. When relative humidity is heightened, it slows the rate of evaporation, thereby decreasing the body's ability to shed heat and creating a sensation of overheating. When the heat gained surpasses the body's cooling capacity, temperatures rise, signaling potential health concerns.

Humidity

In Tsing Fai Tong, the average relative humidity in September is 76%.

Rainfall

In September, the rain falls for 22.7 days. Throughout September, 150mm (5.91") of precipitation is accumulated. In Tsing Fai Tong, during the entire year, the rain falls for 207.6 days and collects up to 1194mm (47.01") of precipitation.

Daylight

In Tsing Fai Tong, the average length of the day in September is 12h and 17min.
On the first day of the month, sunrise is at 06:06 and sunset at 18:40. On the last day of September, in Tsing Fai Tong, sunrise is at 06:14 and sunset at 18:12 HKT.

Sunshine

The average sunshine in September is 8.2h.

UV index

The months with the highest UV index are May through September, with an average maximum UV index of 7. A UV Index value of 6 to 7 symbolizes a high health hazard 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:
Dodge overexposure. Fair-skinned people can get singed in less than 20 minutes. Avoid direct Sun exposure and stay in the shade between 10 a.m. and 4 p.m., a time when UV radiation is most intense, noting that not all shade structures offer full protection. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.