September weather forecast
Vinh Long, Vietnam

With the arrival of September, Vinh Long starts to experience a gradual ease in rainfall activity. The average rainfall reduces comparatively to 44mm (1.73"), indicating a notable change from the heavy downpours observed in August. Despite the decline in rainfall, the overall humidity and cloud cover retain their high percentages. In the transition towards October, weather conditions show signs of further relief from the rains. This period marks an interesting shift, wherein the balance slowly tips back towards a drier profile.

Temperature

Vinh Long's weather, upon September's arrival, documents an average high-temperature of a still hot 31.2°C (88.2°F), nearly identical to the prior month. An average low-temperature of 24.8°C (76.6°F) is observed during the September nights.

Heat index

September's average heat index is calculated to be a scorching 42°C (107.6°F). Implement additional cautionary measures, heat cramps and heat exhaustion could occur. Prolonged activity might induce heatstroke.
Remember that heat index calculations are made for conditions in the shade 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 'felt air temperature' or 'real feel', provides an understanding of perceived warmth by combining temperature and relative humidity. One's perception of temperature is subjective, varying based on their activity and individual heat perception, influenced by factors like wind, clothing, and metabolic variations. Given the impact of direct sunlight, it's noteworthy that the felt temperature can rise by 15 Fahrenheit (8 Celsius) degrees. Heat index values are largely significant for babies and toddlers. Children often miss understanding the importance of rest and rehydration. Thirst usually appears late during dehydration - therefore, maintaining hydration, particularly during long physical activities, is essential.
To combat high temperatures, the human body perspires and relies on sweat evaporation for cooling. Under conditions of high temperature and humidity (enhanced heat index), sweat production is compromised, exacerbating the sensation of warmth. Overheating dangers loom when the body's heat release mechanisms are overshadowed by excessive gain.

Humidity

The months with the highest humidity are July, September and October, with an average relative humidity of 81%.

Rainfall

In Vinh Long, during September, the rain falls for 20.2 days and regularly aggregates up to 44mm (1.73") of precipitation. Throughout the year, there are 159.5 rainfall days, and 359mm (14.13") of precipitation is accumulated.

Daylight

In September, the average length of the day is 12h and 11min.
On the first day of September, sunrise is at 05:46 and sunset at 18:05. On the last day of the month, sunrise is at 05:44 and sunset at 17:47 +07.

Sunshine

The average sunshine in September is 7.4h.

UV index

The months with the highest UV index are January through December, with an average maximum UV index of 7. The months with the lowest UV index are January through December, with an average maximum UV index of 7. 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: The maximum daily UV index, 7 in September, converts into the following recommendations:
Sidestep overexposure. Individuals with fair complexions risk burning in fewer than 20 minutes. The Sun's UV radiation is at its strongest between the hours of 10 a.m. and 4 p.m. Minimize direct exposure to the sun during this period. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun.