September weather forecast
Pak Sha Tsuen, Hong Kong

September, the first month of the autumn in Pak Sha Tsuen, is also a hot month, with an average temperature fluctuating between 26.4°C (79.5°F) and 30°C (86°F).

Temperature

The beginning of September records an average high-temperature of a still tropical 30°C (86°F), almost echoing the conditions of the previous month. In Pak Sha Tsuen, the nocturnal temperatures throughout September show a marginal dip from the daytime averages, settling at a moderately hot 26.4°C (79.5°F).

Heat index

The heat index for September is evaluated at a torrid 37°C (98.6°F). Exercise heightened safety, heat cramps and heat exhaustion are probable. Persistent activity may provoke heatstroke.
Realize that the values for the heat index are set for shaded places and light winds. Facing direct sunlight may hike up the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'felt air temperature', is derived by integrating air temperature with the existing relative humidity to express the perceived warmth. Additional factors encompassing metabolic differences, the level of physical activity, and clothing can impact the individual's perception of temperature. Consider that direct sun exposure can intensify the felt heat, adding potentially 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are extremely significant for children. Children often miss understanding the importance of rest and rehydration. Thirst usually appears late during dehydration - therefore, maintaining hydration, particularly during long physical activities, is essential.
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 on the rise, it curtails evaporation, thereby reducing the heat elimination from the body and causing the feeling of being excessively hot. Rising body temperatures due to excess heat retention could signify impending heat disorders.

Humidity

The average relative humidity in September is 76%.

Rainfall

In Pak Sha Tsuen, during September, the rain falls for 22.7 days and regularly aggregates up to 150mm (5.91") of precipitation. Throughout the year, there are 207.6 rainfall days, and 1194mm (47.01") of precipitation is accumulated.

Daylight

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 18:41. On the last day of September, sunrise is at 06:15 and sunset at 18:12 HKT.

Sunshine

The average sunshine in September in Pak Sha Tsuen, Hong Kong, is 8.2h.

UV index

May through September, with an average maximum UV index of 7, are months with the highest UV index. A UV Index of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV radiation for average individuals.
Note: The daily high UV index of 7 during September translates into the following recommendations:
Prevent overexposure. Protection from the sun's harmful effects is needed. Stay out of direct sunlight and seek shade between 10 a.m. and 4 p.m., when UV radiation is strongest, but remember that shade devices may not offer full sun 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.