September weather forecast
Cha Kwo Ling, Hong Kong

September, the first month of the autumn in Cha Kwo Ling, is also a moderately hot month, 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 commencement of September brings an average high-temperature of a moderately hot 29.6°C (85.3°F), marking an inconsequential divergence from August. Nighttime temperature in Cha Kwo Ling sees a small decrement from daytime highs, dipping to an average of 26.5°C (79.7°F) during September.

Heat index

The heat index for September is computed to be a sweltering 36°C (96.8°F). Special measures are necessary to avoid heat cramps and heat exhaustion. Persistent activity could result in heatstroke.
One should consider that heat index numbers are for shaded settings and light wind. Exposure to unobstructed sunshine could lead to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', stands as a testimony to how temperature and humidity combine to impact our sense of warmth. The influence of weather is personal, differing among a variety of individuals based on differences in body mass, stature, and the level 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 hold particular significance for children. Children are often less aware of the need to rest and re-hydrate. Thirst is a late sign of dehydration - it's vital to remain hydrated, particularly during prolonged physical activities.
The innate cooling system of the human body revolves around perspiration, with the evaporation of sweat being central to this process. Increased relative humidity slows down evaporation, thereby decreasing the rate of heat removal from the body, culminating in a sensation of overheating. As body temperatures escalate without effective heat release, one might face dehydration threats.

Humidity

In September, the average relative humidity in Cha Kwo Ling is 77%.

Rainfall

In Cha Kwo Ling, in September, it is raining for 22.7 days, with typically 155mm (6.1") of accumulated precipitation. Throughout the year, in Cha Kwo Ling, Hong Kong, 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 in Cha Kwo Ling, 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

In September, the average sunshine in Cha Kwo Ling is 8.4h.

UV index

The months with the highest UV index in Cha Kwo Ling are May through September, with an average maximum UV index of 7. A UV Index value of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV rays for the ordinary person.
Note: In September, the maximum UV index of 7 transforms into these recommendations:
Employ safeguards and advocate sun safety protocols. Shielding against skin and eye damage is crucial. Stay in the shade and limit direct Sun exposure from 10 a.m. to 4 p.m., a time when UV radiation is particularly strong. Remember, however, that shade structures may not provide complete protection. Clothes that are both tight-knit and comfortably loose are prime choices for sun protection.