September weather forecast
Lo Uk Tsuen, Hong Kong

September, the first month of the autumn in Lo Uk Tsuen, is still a hot month, with an average temperature varying between 26.4°C (79.5°F) and 30°C (86°F).

Temperature

Lo Uk Tsuen's September reports an average high-temperature of a still hot 30°C (86°F), exhibiting a minor difference from August. In September, Lo Uk Tsuen's nights cool slightly to a consistent average temperature of 26.4°C (79.5°F).

Heat index

For most parts of September, the heat index is appraised at a very hot 37°C (98.6°F). Implement additional cautionary measures, heat cramps and heat exhaustion could occur. Prolonged activity might induce heatstroke.
Heat index's context suggests values are appropriate for shady areas and slight breezes. A rise of up to 15 Fahrenheit (8 Celsius) degrees in the heat index could result from direct sunlight.
Note: The heat index, also known as 'apparent temperature' or 'real feel', comes about by integrating the temperature readings with the humidity levels. The individual's temperature perception can be influenced by numerous factors such as metabolic variations, physical activity, and clothing. One's exposure to direct sunlight has the potential to intensify the heat sensation, increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for children. Children often fail to recognize the requirement to rest and rehydrate. Thirst, being a late symptom of dehydration, underlines the importance of maintaining hydration, especially during ongoing physical activities.
The body's innate mechanism to counteract overheating is through perspiration, as it leverages the cooling effects of sweat evaporation. Under conditions of high temperature and humidity (enhanced heat index), sweat production is compromised, exacerbating the sensation of warmth. When heat gain surpasses the level the body can shed, body temperature begins to increase, and consequently, overheating and dehydration can occur, with varying severity.

Humidity

The average relative humidity in September in Lo Uk Tsuen is 76%.

Rainfall

In September, in Lo Uk Tsuen, Hong Kong, the rain falls for 22.7 days. Throughout September, 150mm (5.91") of precipitation is accumulated. Throughout the year, there are 207.6 rainfall days, and 1194mm (47.01") of precipitation is accumulated.

Daylight

In September, the average length of the day in Lo Uk Tsuen is 12h and 17min.
On the first day of September in Lo Uk Tsuen, sunrise is at 06:06 and sunset at 18:41. On the last day of the month, sunrise is at 06:15 and sunset at 18:12 HKT.

Sunshine

In Lo Uk Tsuen, the average sunshine in September is 8.2h.

UV index

The months with the highest UV index are May through September, with an average maximum UV index of 7. A UV Index reading of 6 to 7 represents a high health vulnerability from unprotected exposure to Sun's UV rays for average individuals.
Note: A daily maximum UV index of 7 in September translates into the following instructions:
Shun overexposure. Protection from sun ravages is indispensable. 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-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes.