September weather forecast
Fa Sam Hang, Hong Kong

September, the first month of the autumn in Fa Sam Hang, is still a warm month, with an average temperature ranging between max 29.6°C (85.3°F) and min 26.5°C (79.7°F).

Temperature

As September takes hold, the average high-temperature is a warm 29.6°C (85.3°F), nearly mirroring that of the previous month. Fa Sam Hang observes an average low-temperature of 26.5°C (79.7°F) during the slightly cooler nights of September.

Heat index

In September, the average heat index is appraised at a sweltering 36°C (96.8°F). Take additional safety steps, risk of heat exhaustion and heat cramps is notable. Prolonged activity may cause heatstroke.
Thinking about the heat index, one should account for its values in shaded areas with gentle breezes. Direct sunlight exposure may result in a rise of the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', is a numerical representation of warmth when taking temperature and moisture levels into account. A person's impression of weather can be shaped by many aspects, among them metabolic variations, pregnancy, and levels of physical activity. Bear in mind that direct sunshine exposure increases weather impact, and may raise heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are primarily vital for children. Younglings are generally more in peril than adults due to their reduced perspiration. Coupled with a larger skin surface relative to their tiny bodies and greater heat production because of their activity, they become more at risk.
The human body cools itself through perspiration, as excessive warmth is removed from the body through sweat evaporation. Increased relative humidity slows down evaporation, thereby decreasing the rate of heat removal from the body, culminating in a sensation of overheating. Heat-related disorders may develop if heat gain in the body overshadows its cooling capacity, leading to elevated temperatures.

Humidity

In Fa Sam Hang, the average relative humidity in September is 77%.

Rainfall

In September, the rain falls for 22.7 days. Throughout September, 155mm (6.1") of precipitation is accumulated. In Fa Sam Hang, Hong Kong, during the entire year, the rain falls for 224.5 days and collects up to 1264mm (49.76") of precipitation.

Daylight

In Fa Sam Hang, the average length of the day in September is 12h and 17min.
On the first day of September in Fa Sam Hang, 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

The average sunshine in September is 8.4h.

UV index

May through September, with an average maximum UV index of 7, are months with the highest UV index in Fa Sam Hang. A UV Index estimate of 6 to 7 represents a high health hazard from exposure to the Sun's UV radiation for the ordinary person.
Note: A maximum high UV index of 7 in September translates into the following recommendations:
Persist with safeguards and heed sun safety doctrines. Keeping sunburn at bay is of prime importance. Make an effort to avoid direct sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation, and note that objects like parasols or canopies might not offer full sun protection. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure.