September weather forecast
Cheung Muk Tau, Hong Kong

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

Temperature

The high-temperature average in September for Cheung Muk Tau is a still hot 30°C (86°F), staying closely aligned with August's conditions. Cheung Muk Tau's September nights observe a minor shift from the daytime temperatures, resulting in an average dip to a warm 26.3°C (79.3°F).

Heat index

The heat index in September is calculated to be a very hot 37°C (98.6°F). Adopt special protective actions against heat exhaustion and heat cramps. Long-duration activity risks heatstroke.
Always consider that heat index estimations are for light winds and places in the shade. Direct sunlight can potentially boost the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', is a fusion of air temperature and moisture levels to demonstrate the sensation of heat. The effect of weather is individual, with a variety of people experiencing it differently due to distinctions in body mass, height, and level of activity. You should know that direct sun exposure can heighten weather effects, potentially elevating the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular significance for children. Young children are more at risk than adults since they tend to sweat less. Moreover, their large skin surface in proportion to their small bodies and the high heat production due to their activities contribute to their vulnerability.
Humans rely on perspiration as a cooling mechanism, wherein the evaporating sweat counteracts excessive warmth. 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 heat surpasses the body's release mechanisms, dehydration and overheating risks become pronounced.

Humidity

In Cheung Muk Tau, the average relative humidity in September is 76%.

Rainfall

In Cheung Muk Tau, during September, the rain falls for 19.8 days and regularly aggregates up to 94mm (3.7") of precipitation. In Cheung Muk Tau, during the entire year, the rain falls for 187.1 days and collects up to 771mm (30.35") of precipitation.

Daylight

In Cheung Muk Tau, the average length of the day in September is 12h and 17min.
On the first day of September, sunrise is at 06:05 and sunset at 18:40. On the last day of the month, sunrise is at 06:14 and sunset at 18:11 HKT.

Sunshine

In September, the average sunshine is 8.2h.

UV index

May through September, with an average maximum UV index of 7, are months with the highest UV index in Cheung Muk Tau, Hong Kong. A UV Index reading of 6 to 7 represents a high threat to health from exposure to the Sun's UV radiation for the ordinary person.
Note: In September, the maximum UV index of 7 transforms into these recommendations:
Dodge overexposure. Fair-skinned people can get singed in less than 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. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance.