September weather forecast
Tin Liu, Hong Kong

The first month of the autumn, September, is still a hot month in Tin Liu, Hong Kong, with an average temperature varying between 26.4°C (79.5°F) and 30°C (86°F).

Temperature

On the advent of September, Tin Liu's average high-temperature exhibits a minor adjustment to a still tropical 30°C (86°F) from August's 31.3°C (88.3°F). In Tin Liu, September is characterized by an average low-temperature of 26.4°C (79.5°F), indicating a minor drop from daytime highs.

Heat index

The heat index value during September is evaluated at a fiery hot 37°C (98.6°F). Preventive measures are required to mitigate the risk of heat cramps and heat exhaustion. Continuous activity may precipitate heatstroke.
Consider that heat index readings are for situations in the shade and light wind. The heat index could experience an increase of 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'felt air temperature' or 'feels like', combines air temperature and relative humidity to represent a human perceived temperature equivalent. A person's impression of weather can be swayed by numerous aspects, among them metabolic variations, pregnancy, and activity levels. 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 particularly important for children. Young ones often do not realize the necessity to rest and replenish their fluids. Thirst is a delayed indication of dehydration - keeping hydrated, particularly in prolonged physical activity, is crucial.
The natural method the human body uses to remove excess heat is by perspiring and letting sweat evaporate. When the air contains significant moisture, the efficiency of the evaporation process decreases, preventing the body from cooling down effectively and creating a feeling of overheating. Rising body temperatures resulting from an imbalance in heat absorption can lead to potential thermal issues.

Humidity

In September, the average relative humidity is 76%.

Rainfall

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

Daylight

In September, the average length of the day in Tin Liu, Hong Kong, is 12h and 17min.
On the first day of September, sunrise is at 06:06 and sunset at 18:40. On the last day of the month, sunrise is at 06:14 and sunset at 18:11 HKT.

Sunshine

The average sunshine in September in Tin Liu, Hong Kong, is 8.2h.

UV index

The months with the highest UV index in Tin Liu are May through September, with an average maximum UV index of 7. A UV Index of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV rays for the ordinary person.
Note: A typical high UV index of 7 in September suggests the following recommendations:
Incorporate safeguards and honour sun safety principles. Protection from skin and eye damage is obligatory. It's important to stay in the shade and limit exposure to the sun from 10 a.m. to 4 p.m., when UV radiation is most intense, although remember that shade structures may not provide full sun protection. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation.