September weather forecast
Wong Chuk Hang, Hong Kong

September welcomes a significant change in Wong Chuk Hang's weather as the rainfall decreases from 223mm (8.78") to 155mm (6.1"). This month showcases the beginning of the autumn season. September's longer daylight hours combined with lowering temperatures provide an inviting climate for outdoor activities. As the season progresses, relatively low wind gusts are observed. Tail end of summer and beginning of autumn showers signals a change in the city's all-encompassing weather pattern.

Temperature

The commencement of September introduces an average high-temperature of a warm 29.6°C (85.3°F), closely mirroring the preceding month. Wong Chuk Hang, during September nights, observes a steady temperature, averaging at 26.5°C (79.7°F).

Heat index

September's heat index is estimated at a sweltering 36°C (96.8°F). Emphasize additional safety, risk of heat cramps and heat exhaustion is high. Continuous activity might result in heatstroke.
From a standpoint of the heat index, values pertain to shaded conditions and mild breezes. The heat index has the possibility to be enhanced by 15 Fahrenheit (8 Celsius) degrees when there is direct sun exposure.
Note: The heat index, also known as 'real feel' or 'apparent temperature', is an amalgamation of air temperature and humidity to express the equivalent perceived temperature. A person's impression of weather can be affected by numerous aspects, among them metabolic variations, pregnancy, and activity levels. In direct sunlight, the heat's impact can be heightened, potentially leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold great significance to children. Kids are usually more vulnerable than adults, given their lesser sweating ability. Along with their larger skin surface relative to their small stature and the excess heat due to their activity, their risk is amplified.
To achieve cooling, the human body employs perspiration, relying on the subsequent evaporation of sweat. During conditions of high air temperature and humidity (high heat index), the body's ability to perspire is inhibited, increasing the sensation of warmth. Inadequate heat shedding in the face of rising body temperatures hints at potential dehydration risks.

Humidity

In Wong Chuk Hang, the average relative humidity in September is 77%.

Rainfall

In Wong Chuk Hang, during September, the rain falls for 22.7 days and regularly aggregates up to 155mm (6.1") of precipitation. Throughout the year, there are 224.5 rainfall days, and 1264mm (49.76") of precipitation is accumulated.

Daylight

The average length of the day in September 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 18:12 HKT.

Sunshine

The average sunshine in September is 8.4h.

UV index

The months with the highest UV index in Wong Chuk Hang are May through September, with an average maximum UV index of 7. A UV Index of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV rays for the average person.
Note: The daily maximum UV index of 7 in September interprets into the following advice:
Ward off overexposure. Defence against solar harm is crucial. To the best of your ability, limit your exposure to the sun between the hours of 10 a.m. and 4 p.m., when UV radiation is at its peak. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes.