September weather forecast
Tai Tam, Hong Kong

The first month of the autumn, September, is still a warm month in Tai Tam, Hong Kong, with temperature in the range of an average high of 29.6°C (85.3°F) and an average low of 26.5°C (79.7°F).

Temperature

The transition into September notes an average high-temperature of a warm 29.6°C (85.3°F), revealing a mild distinction from the 30.5°C (86.9°F) in August. A consistent average low of 26.5°C (79.7°F) is noted throughout September, only a small step down from its daytime high.

Heat index

Throughout September, the heat index is appraised at a torrid 36°C (96.8°F). Undertake additional precautions, heat cramps and heat exhaustion could happen. Heatstroke could occur from sustained activity.
Data suggests that the heat index is set for environments in shade and with a light wind. The heat index may experience an enhancement of 15 Fahrenheit (8 Celsius) degrees under direct sunlight.
Note: The heat index, also known as 'real feel' or 'felt air temperature', reflects the blend of air temperature and relative humidity to give a temperature impression. This effect tends to be personal, with the weather perception differing among individuals due to variations in body mass, height, and exertion. Awareness is key; direct sunlight can enhance the weather's impact, possibly boosting the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are primarily vital for children. Kids are usually in more danger than grown-ups as they tend to sweat less. Plus, their bigger skin surface in relation to their small frames and increased heat generation due to their activity level make them more susceptible.
The innate cooling system of the human body revolves around perspiration, with the evaporation of sweat being central to this process. Greater relative humidity lessens the rate of evaporation, thus decreasing the body's heat dispersal, which gives rise to a sensation of overheating. Potential thermal conditions emerge as the body's heat gain outpaces its cooling mechanisms.

Humidity

The average relative humidity in September in Tai Tam, Hong Kong, is 77%.

Rainfall

In September, the rain falls for 22.7 days. Throughout September, 155mm (6.1") of precipitation is accumulated. Throughout the year, there are 224.5 rainfall days, and 1264mm (49.76") of precipitation is accumulated.

Daylight

In Tai Tam, 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 18:40. On the last day of September, in Tai Tam, sunrise is at 06:14 and sunset at 18:11 HKT.

Sunshine

In September, the average sunshine is 8.4h.

UV index

May through September, with an average maximum UV index of 7, are months with the highest UV index in Tai Tam. A UV Index value of 6 to 7 symbolizes a high health risk from unsafe exposure to UV radiation for the average person.
Note: The UV index of 7 during September translates into the following guidance:
Adhere to precautions and respect sun safety doctrines. Avoiding sunburn is vital. The Sun's UV radiation is most potent between 10 a.m. and 4 p.m. Try to limit direct exposure to the Sun during this period. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim.