September weather forecast
Hechi, China

Come September, Hechi begins to experience a slow but noticeable withdrawal from the summer. The drop in temperatures relieves the city from the intense summer heat. Rainfall reduces significantly, falling to 102mm (4.02"), signalling the start of the exit from the wet season. Along with the lesser rainfall, the humidity levels also take a dip, alleviating the mugginess. While still lengthy, the daylight duration tapers off, accommodating the transition to autumn.

Temperature

The transition into September in Hechi is marked with an average high-temperature of a still tropical 30.9°C (87.6°F), showing an insignificant shift from August's 32.9°C (91.2°F). Hechi observes an average low-temperature of 22.7°C (72.9°F) during September nights.

Heat index

The heat index value during September is computed to be a fiery hot 39°C (102.2°F). More preventive actions are needed, risk of heat exhaustion and heat cramps is significant. Prolonged activity may trigger heatstroke.
It is essential to grasp that the heat index's numbers are for shade and light wind settings. Heat index values may be hiked up by 15 Fahrenheit (8 Celsius) degrees under direct sunshine.
Note: The heat index, also known as 'felt air temperature' or 'feels like', quantifies the warmth felt when relative humidity is considered. Physical activity, clothing, and metabolic variations are additional factors that impact an individual's perception of temperature. Direct sun rays can make one feel hotter, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular significance for children. Younglings frequently fail to recognize the requirement to rest and rehydrate. Thirst emerges late in dehydration - it is imperative to keep hydration levels high, particularly during extended physical exertions.
To cool down, the human body relies on perspiration, a process where excessive heat is eliminated as sweat evaporates. Greater relative humidity lessens the rate of evaporation, thus decreasing the body's heat dispersal, which gives rise to a sensation of overheating. As body temperatures escalate without effective heat release, one might face dehydration threats.

Humidity

The average relative humidity in September is 76%.

Rainfall

In September, the rain falls for 10.9 days. Throughout September, 102mm (4.02") of precipitation is accumulated. Throughout the year, in Hechi, there are 162.3 rainfall days, and 1524mm (60") of precipitation is accumulated.

Daylight

In September, the average length of the day in Hechi, China, is 12h and 18min.
On the first day of September, sunrise is at 06:28 and sunset at 19:06. On the last day of the month, sunrise is at 06:39 and sunset at 18:35 CST.

Sunshine

In September, the average sunshine in Hechi is 5.1h.