September weather forecast
Bảo Sơn, Vietnam

The first month of the autumn, September, is still a tropical month in Bảo Sơn, Vietnam, with temperature in the range of an average high of 30.9°C (87.6°F) and an average low of 23.2°C (73.8°F).

Temperature

With September's arrival, Bảo Sơn notes an average high-temperature of a still tropical 30.9°C (87.6°F), closely following the trend of the preceding month. During the September nights, an average temperature of 23.2°C (73.8°F) is observed.

Heat index

September's average heat index is appraised at a scorching 42°C (107.6°F). Heightened precautions are necessary, heat cramps and heat exhaustion are potential risks. Continuous activity could lead to heatstroke.
For clarity, heat index numbers account for light winds and areas under shade. The heat index has the potential to rise by 15 Fahrenheit (8 Celsius) degrees with direct sunshine exposure.
Note: The heat index, also known as 'felt air temperature' or 'feels like', is a calculated temperature value of how hot it feels when the moisture in the air is factored in. A person's impression of weather can be shaped by many aspects, among them metabolic variations, pregnancy, and levels of physical activity. The sun, when shining directly, can have a significant impact on the perceived temperature, increasing the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for children. Kids are usually in more danger than grown-ups as they tend to sweat less. Plus, their bigger skin surface in relation to their small frames and increased heat generation due to their activity level make them more susceptible.
Perspiration is the human body's physiological response to high temperatures and is an attempt to lower body temperature through evaporation of sweat. During high air temperature and humidity (high heat index), the process of perspiration is hindered, intensifying the sensation of heat. Temperature imbalances caused by excessive heat retention can trigger heat-related maladies.

Humidity

The months with the highest humidity are August and September, with an average relative humidity of 83%.

Rainfall

In September, in Bảo Sơn, the rain falls for 22.4 days. Throughout September, 204mm (8.03") of precipitation is accumulated. Throughout the year, there are 236.6 rainfall days, and 1444mm (56.85") of precipitation is accumulated.

Daylight

In September, the average length of the day is 12h and 16min.
On the first day of September, sunrise is at 05:41 and sunset at 18:13. On the last day of the month, sunrise is at 05:48 and sunset at 17:46 +07.

Sunshine

In September, the average sunshine is 8.3h.

UV index

In Bảo Sơn, the average daily maximum UV index in September is 6. A UV Index estimate of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV rays for average individuals.
Note: In September, the UV index of 6 transforms into the following advice:
Refrain from overexposure. Fair-skinned individuals could burn in under 20 minutes. Avoid direct exposure to the Sun between 10 a.m. and 4 p.m., the peak period for UV radiation, noting that objects like parasols or canopies might not offer complete sun protection. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays.