September weather forecast
Tân Lưu, Vietnam

The first month of the autumn, September, is still a warm month in Tân Lưu, Vietnam, with an average temperature fluctuating between 29.4°C (84.9°F) and 24.3°C (75.7°F).

Temperature

September's advent denotes a minor fluctuation in the average high-temperature to a moderately hot 29.4°C (84.9°F) from August's 30.8°C (87.4°F). September nights experience a consistent temperature drop to 24.3°C (75.7°F).

Heat index

The heat index value during September is evaluated at a torrid 37°C (98.6°F). Emphasize additional safety, risk of heat cramps and heat exhaustion is high. Continuous activity might result in heatstroke.
Understanding the heat index involves considering values for shaded locales with light wind. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'apparent temperature', is a fusion of air temperature and moisture levels to demonstrate the sensation of heat. Factors such as metabolic variation, pregnancy, and physical activity play a role in one's impression of weather. With the sun shining directly, it's crucial to understand that it can increase the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly meaningful for babies and toddlers. Young people are generally more susceptible than adults because they perspire less. Furthermore, their proportionally larger skin surface to their petite bodies and the increased heat output from their actions add to the risk.
In the face of high temperatures, the human body's reflex is to perspire, leveraging sweat evaporation for cooling. In conditions of both high temperature and humidity (a high heat index), sweating is limited and the perception of heat is enhanced. If the body retains more heat than it can expel, the increasing temperature can lead to heat-related conditions.

Humidity

In September, the average relative humidity is 84%.

Rainfall

In Tân Lưu, during September, the rain falls for 23.5 days and regularly aggregates up to 183mm (7.2") of precipitation. In Tân Lưu, during the entire year, the rain falls for 268.7 days and collects up to 1570mm (61.81") of precipitation.

Daylight

In September, the average length of the day in Tân Lưu is 12h and 14min.
On the first day of September, sunrise is at 05:33 and sunset at 17:59. On the last day of the month, sunrise is at 05:36 and sunset at 17:36 +07.

Sunshine

In Tân Lưu, the average sunshine in September is 8.1h.

UV index

The months with the highest UV index are April through September, with an average maximum UV index of 7. A UV Index value of 6 to 7 symbolizes a high health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: The daily high UV index of 7 in September translates into this advice:
Fend off overexposure. Sun protection is vital. Avoid exposure to the Sun and try to stay in the shade between 10 a.m. and 4 p.m., when UV radiation is most potent, but be aware that parasols or canopies may not offer full protection. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses.