September weather forecast
Hoàng Vân, Vietnam

September, the first month of the autumn in Hoàng Vân, is also a hot month, with an average temperature fluctuating between 30.9°C (87.6°F) and 23.2°C (73.8°F).

Temperature

September notes an average high-temperature of a still tropical 30.9°C (87.6°F), subtly differing from August's 31.9°C (89.4°F). In Hoàng Vân, an average nighttime temperature of 23.2°C (73.8°F) is expected during September.

Heat index

During September, the heat index is computed to be an extremely hot 42°C (107.6°F). Emphasize additional safety, risk of heat cramps and heat exhaustion is high. Continuous activity might result in heatstroke.
It is crucial to understand that heat index figures are for shade and gentle wind conditions. With exposure to direct sunlight, the heat index may be increased by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'apparent temperature', is a calculated temperature value of how hot it feels when the moisture in the air is factored in. The individual's temperature perception can be influenced by numerous factors such as metabolic variations, physical activity, and clothing. It is noteworthy that being in direct sunlight can enhance the weather's impact, raising the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for babies and toddlers. Young ones generally face higher dangers than adults since they sweat less. Along with their large skin surface area compared totheir small bodies and increased heat production from their activities, the risks are heightened.
Evaporating sweat, thanks to perspiration, acts as a natural air conditioner for the human body. An increase in relative humidity hinders the body's normal cooling function by reducing evaporation, thereby decreasing the rate of body cooling and enhancing the sense of warmth. When heat uptake goes beyond the body's cooling mechanisms, there's a surge in body temperature, posing health risks.

Humidity

August and September, with an average relative humidity of 83%, are the most humid months in Hoàng Vân, Vietnam.

Rainfall

In Hoàng Vân, in September, it is raining for 22.4 days, with typically 204mm (8.03") of accumulated precipitation. In Hoàng Vân, during the entire year, the rain falls for 236.6 days and collects up to 1444mm (56.85") of precipitation.

Daylight

In Hoàng Vân, Vietnam, the average length of the day in September is 12h and 16min.
On the first day of the month, sunrise is at 05:41 and sunset at 18:14. On the last day of September, sunrise is at 05:48 and sunset at 17:46 +07.

Sunshine

In Hoàng Vân, the average sunshine in September is 8.3h.

UV index

In Hoàng Vân, the average daily maximum UV index in September is 6. A UV Index value of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV rays for the ordinary person.
Note: A maximum daily UV index of 6 during September morphs into the following directions:
Sustain precautions and conform to sun safety norms. Preventing sunburn is necessary. Between 10 a.m. and 4 p.m., the Sun emits the most powerful UV radiation. Limit direct exposure to the Sun during these hours. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes.