September weather forecast
Yangjiang, China

September signals a significant shift in Yangjiang's weather with a decline in both high temperatures and rainfall quantities. September records a substantial reduction in rainfall volume, almost halving from 391mm (15.39") in August to 232mm (9.13"). The temperatures display a slight drop enhancing the outdoor experience compared to the previous hot months. Decreased hours of sunshine hint at the imminent arrival of shorter days ahead. In September, a gradual cooldown is reported, indicating the onset of autumn, though the remnants of summer heat persist.

Temperature

With the onset of September in Yangjiang, the average high-temperature registers at a still hot 30.8°C (87.4°F), subtly different from August's 31.6°C (88.9°F). September in Yangjiang generally records an average low-temperature of 23.9°C (75°F).

Heat index

September's mean heat index is calculated to be a blistering 41°C (105.8°F). Take special precautions - heat exhaustion and heat cramps are expected. Heatstroke may occur with lengthy activity.
One should consider that heat index numbers are for shaded settings and light wind. The direct sun can potentially cause the heat index to increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', evaluates the perceived heat by adding the effect of moisture in the air. An individual's perception of weather can be swayed by a variety of elements including metabolic differences, pregnancy status, and their level of physical exertion. Awareness of direct sun exposure is crucial as it has the potential to heighten the weather's effects, pushing up the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to children. Children often lack awareness of the importance of taking breaks and rehydrating. The feeling of thirst is a late indication of dehydration, so maintaining hydration, especially during long periods of physical activity, is critical.
The physiological way the human body responds to excessive heat is by inducing perspiration, using sweat evaporation as a cooling mechanism. An increase in relative humidity retards evaporation, subsequently reducing the body's heat removal rate and leading to a sensation of being overly warm. The body faces dehydration threats when its cooling efforts are outpaced by excessive heat gain.

Humidity

The average relative humidity in September in Yangjiang is 82%.

Rainfall

In September, the rain falls for 14.8 days. Throughout September, 232mm (9.13") of precipitation is accumulated. Throughout the year, in Yangjiang, China, there are 158.9 rainfall days, and 2443mm (96.18") of precipitation is accumulated.

Sea temperature

In Yangjiang, the average seawater temperature in September is 28.3°C (82.9°F).
Note: With water temperature from 25°C (77°F) to 29°C (84.2°F), all water activities are comfortable and delightful, devoid of discomfort even for lengthened periods.

Daylight

In September, the average length of the day is 12h and 16min.
On the first day of September in Yangjiang, sunrise is at 06:15 and sunset at 18:48. On the last day of the month, sunrise is at 06:23 and sunset at 18:20 CST.

Sunshine

The average sunshine in September is 6h.