September weather forecast
Tân Duyệt, Vietnam

The first month of the autumn, September, is still a hot month in Tân Duyệt, Vietnam, with an average temperature ranging between min 25.9°C (78.6°F) and max 30.8°C (87.4°F).

Temperature

The shift from August to September is characterized by an average high-temperature of a still hot 30.8°C (87.4°F), not significantly different from the 31.6°C (88.9°F) of August. Tân Duyệt experiences a subtle drop in temperature during the September nights, recording an average of 25.9°C (78.6°F).

Heat index

For most parts of September, the heat index is computed to be a torrid 39°C (102.2°F). Take more caution, heat exhaustion and heat cramps may occur. Long-lasting activity may cause heatstroke.
Observations indicate that the heat index values are for shady locations with light wind. With direct sunlight, the heat index could increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', comes about by integrating the temperature readings with the humidity levels. The effect of weather is individual, with a variety of people experiencing it differently due to distinctions in body mass, height, and level of activity. It is essential to realize that direct sunlight can escalate the perceived temperature, increasing the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to children. Children often fail to recognize the requirement to rest and rehydrate. Thirst, being a late symptom of dehydration, underlines the importance of maintaining hydration, especially during ongoing physical activities.
The human body normally cools itself by perspiration, as evaporated sweat carries heat away from the body. Increased relative humidity slows down evaporation, thereby decreasing the rate of heat removal from the body, culminating in a sensation of overheating. Temperature imbalances caused by excessive heat retention can trigger heat-related maladies.

Humidity

The average relative humidity in September is 77%.

Rainfall

In September, the rain falls for 20.9 days. Throughout September, 89mm (3.5") of precipitation is accumulated. In Tân Duyệt, during the entire year, the rain falls for 238.6 days and collects up to 889mm (35") of precipitation.

Daylight

In September, the average length of the day is 12h and 10min.
On the first day of September, sunrise is at 05:50 and sunset at 18:07. On the last day of the month, sunrise is at 05:47 and sunset at 17:50 +07.

Sunshine

The average sunshine in September in Tân Duyệt is 8.3h.

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 reading of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV radiation for ordinary individuals.
Note: The maximum daily UV index of 7 in September interprets into the following recommendations:
Deter overexposure. Protecting against the sun's effects is essential. Stay out of direct sunlight between 10 a.m. and 4 p.m., when UV radiation is most intense, and remember that not all shade structures provide complete protection. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage.