September weather forecast
Pak Tam Au, Hong Kong

September, the first month of the autumn in Pak Tam Au, is also a moderately hot month, with temperature in the range of an average low of 26.5°C (79.7°F) and an average high of 29.6°C (85.3°F).

Temperature

As August turns into September, the average high-temperatures rest at a moderately hot 29.6°C (85.3°F), showing a minor variation from the prior month. Pak Tam Au marks an average drop to 26.5°C (79.7°F) during nighttime in September, following the high of the day.

Heat index

The heat index value for September is calculated to be a fiery hot 36°C (96.8°F). Adopt heightened preventive measures, heat exhaustion and heat cramps are probable. Persistent activity could lead to heatstroke.
It is crucial to understand that heat index figures are for shade and gentle wind conditions. The heat index can potentially augment by 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'felt air temperature' or 'real feel', combines air temperature and relative humidity to represent a human perceived temperature equivalent. This effect is personal, influenced by the individual's physical activity and heat sensitivity, shaped by factors including wind, attire, and metabolic variations. Do note, being directly under sun rays can amplify the heat you feel, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to babies and toddlers. Young ones often disregard the necessity to rest and hydrate. Thirst usually indicates advanced dehydration - hence, it is key to stay hydrated, particularly during ongoing physical activities.
Perspiration is essential for the human body; it facilitates cooling through the process of sweat evaporation. 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. Excessive heat gain, when not shed effectively by the body, can result in increasing body temperatures and related hazards.

Humidity

In Pak Tam Au, the average relative humidity in September is 77%.

Rainfall

In Pak Tam Au, in September, it is raining for 22.7 days, with typically 155mm (6.1") of accumulated precipitation. In Pak Tam Au, during the entire year, the rain falls for 224.5 days and collects up to 1264mm (49.76") of precipitation.

Daylight

In September, the average length of the day is 12h and 17min.
On the first day of September, sunrise is at 06:05 and sunset at 18:39. On the last day of the month, sunrise is at 06:13 and sunset at 18:11 HKT.

Sunshine

In September, the average sunshine in Pak Tam Au is 8.4h.

UV index

May through September, with an average maximum UV index of 7, are months with the highest UV index. A UV Index estimate of 6 to 7 represents a high threat to health from exposure to the Sun's UV radiation for the ordinary person.
Note: The maximum UV index of 7 during September leads to these instructions:
Undertake precautions and comply with sun safety standards. Protection from skin and eye injury is vital. Seek shade and limit direct Sun exposure between 10 a.m. and 4 p.m., when UV radiation is at its peak, but be aware that not all shade structures provide complete 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.