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

The average high-temperature in Vinh Long during September registers at a still hot 31.2°C (88.2°F), closely corresponding to the preceding month. September nights in Vinh Long experience a consistent temperature drop to a moderately hot 24.8°C (76.6°F).

Heat index

In September, the average heat index is computed to be an extremely hot 42°C (107.6°F). Implement additional preventive actions, heat cramps and heat exhaustion are potential hazards. Heatstroke could follow prolonged activity.
Observations indicate that the heat index values are for shady locations with light wind. A rise in the heat index by 15 Fahrenheit (8 Celsius) degrees may result from direct sunlight exposure.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', measures the perceived warmth when incorporating the humidity present in the air. The perception of temperature can be subjective, varying based on activity and individual heat sensitivity, influenced by factors like wind, attire, and metabolic variations. 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 remain especially vital for babies and toddlers. Children often fail to understand the importance of rest and rehydration. Thirst is a late manifestation of dehydration - hence, it is crucial to stay hydrated, especially during ongoing physical activities.
The human body has a built-in cooling mechanism through perspiration; evaporating sweat dissipates the excess heat. Elevated relative humidity diminishes evaporation, thereby reducing the body's ability to shed heat and creating a feeling of being too warm. The body is at risk of dehydration and related complications when it fails to shed excessive heat.

Humidity

July, September and October, with an average relative humidity of 81%, are the most humid months in Vinh Long.

Rainfall

In Vinh Long, in September, it is raining for 20.2 days, with typically 44mm (1.73") of accumulated precipitation. Throughout the year, in Vinh Long, Vietnam, there are 159.5 rainfall days, and 359mm (14.13") of precipitation is accumulated.

Daylight

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

Sunshine

In September, the average sunshine in Vinh Long is 7.4h.

UV index

January through December, with an average maximum UV index of 7, are months with the highest UV index. The months with the lowest UV index in Vinh Long are January through December, with an average maximum UV index of 7. A UV Index reading of 6 to 7 represents a high threat to health from unprotected exposure to Sun's UV rays for the average person.
Note: The daily maximum UV index of 7 in September interprets into the following advice:
Sidestep overexposure. Individuals with fair complexions risk burning in fewer than 20 minutes. Minimize exposure to direct sunlight and seek shade from 10 a.m. to 4 p.m., when UV radiation is most intense, but remember that shade structures may not offer complete protection. Experience reduced UV exposure by about half when donning a wide-brim hat.