September weather forecast
Cheung Lek Mei, Hong Kong

The first month of the autumn, September, is also a hot month in Cheung Lek Mei, Hong Kong, with an average temperature ranging between max 30°C (86°F) and min 26.3°C (79.3°F).

Temperature

Cheung Lek Mei in September witnesses an average high-temperature of a still tropical 30°C (86°F), indicating a slight variation from August's 31.3°C (88.3°F). In September, Cheung Lek Mei's nights cool slightly to a consistent average temperature of 26.3°C (79.3°F).

Heat index

During September, the heat index is evaluated at a fiery hot 37°C (98.6°F). Implement additional cautionary measures, heat cramps and heat exhaustion could occur. Prolonged activity might induce heatstroke.
Evaluating the heat index requires understanding its values in the shade and with gentle winds. With exposure to direct sunlight, the heat index may be increased by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', stands as a testimony to how temperature and humidity combine to impact our sense of warmth. A person's impression of weather can be affected by numerous aspects, among them metabolic variations, pregnancy, and activity levels. In the direct sunlight, the weather's impact can be amplified, possibly boosting the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly meaningful for babies and toddlers. Younglings frequently fail to recognize the requirement to rest and rehydrate. Thirst emerges late in dehydration - it is imperative to keep hydration levels high, particularly during extended physical exertions.
The human body has a built-in cooling mechanism through perspiration; evaporating sweat dissipates the excess heat. When relative humidity is on the rise, it curtails evaporation, thereby reducing the heat elimination from the body and causing the feeling of being excessively hot. When heat gain exceeds the level the body can remove, body temperature begins to rise, and heat-related illnesses and disorders may develop.

Humidity

The average relative humidity in September is 76%.

Rainfall

In Cheung Lek Mei, in September, during 19.8 rainfall days, 94mm (3.7") of precipitation is typically accumulated. In Cheung Lek Mei, Hong Kong, during the entire year, the rain falls for 187.1 days and collects up to 771mm (30.35") of precipitation.

Daylight

In September, the average length of the day 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, sunrise is at 06:14 and sunset at 18:11 HKT.

Sunshine

In Cheung Lek Mei, the average sunshine in September is 8.2h.

UV index

The months with the highest UV index in Cheung Lek Mei are May through September, with an average maximum UV index of 7. A UV Index reading of 6 to 7 represents a high health vulnerability from unsafe exposure to UV radiation for ordinary individuals.
Note: The maximum daily UV index of 7 in September interprets into the following recommendations:
Avert overexposure. Light-skinned people might experience burning in less than 20 minutes. UV radiation from the Sun is most intense between 10 a.m. and 4 p.m. Try to avoid direct sunlight during this period. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days.