September weather forecast
Au Tau, Hong Kong

September, the first month of the autumn in Au Tau, is also a moderately hot month, with an average temperature varying between 29.6°C (85.3°F) and 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. September nights in Au Tau reveal a minor deviation from daytime highs, with a mean low-temperature of 26.5°C (79.7°F).

Heat index

Throughout September, the heat index is calculated to be a sweltering 36°C (96.8°F). More preventive actions are needed, risk of heat exhaustion and heat cramps is significant. Prolonged activity may trigger heatstroke.
Regarding the heat index, one should be aware it's determined by shaded settings and mild winds. The heat index may experience an enhancement of 15 Fahrenheit (8 Celsius) degrees under direct sunlight.
Note: The heat index, also known as 'feels like' or 'real feel', is a fusion of air temperature and moisture levels to demonstrate the sensation of heat. 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. When you're directly under the sun's rays, remember that the heat index may surge by 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for babies and toddlers. Kids frequently ignore the importance of taking a break and rehydrating. Thirst is a late symptom of dehydration - thus, it is crucial to stay hydrated, especially during long-lasting physical activities.
To achieve cooling, the human body employs perspiration, relying on the subsequent evaporation of sweat. Higher relative humidity impedes evaporation, thus reducing heat dispersion from the body, culminating in a sensation of overheating. If the body retains more heat than it can expel, the increasing temperature can lead to heat-related conditions.

Humidity

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

Rainfall

In Au Tau, in September, during 22.7 rainfall days, 155mm (6.1") of precipitation is typically accumulated. In Au Tau, 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 in Au Tau, Hong Kong, 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 Au Tau, Hong Kong, sunrise is at 06:14 and sunset at 18:12 HKT.

Sunshine

The average sunshine in September is 8.4h.

UV index

May through September, with an average maximum UV index of 7, are months with the highest UV index in Au Tau. A UV Index estimate of 6 to 7 represents a high health hazard from unsafe exposure to UV radiation for the ordinary person.
Note: In September, the UV index of 7 transforms into the following advice:
Avoid excessive sunlight. Those with lighter skin may experience burning in less than 20 minutes. Limit direct sun exposure and seek shade between 10 a.m. and 4 p.m., the time of the most intense UV radiation, noting that shade structures may not provide total sun protection. Enhance your sun protection with tightly woven, yet airy clothing.