September weather forecast
Chợ Chu, Vietnam

The first month of the autumn, September, is still a warm month in Chợ Chu, Vietnam, with an average temperature varying between 84.2°F and 69.3°F.

Temperature

Chợ Chu experiences a minor change to a warm 84.2°F in average high-temperature during September, closely reflecting August. An average low-temperature of 69.3°F is common during the nights of September.

Heat index

The average heat index in September is appraised at a torrid 96.8°F. Adopt heightened preventive measures, heat exhaustion and heat cramps are probable. Persistent activity could lead to heatstroke.
Understand that the heat index values take into account shaded locations and mild winds. The heat index has the possibility to be enhanced by 15 Fahrenheit (8 Celsius) degrees when there is direct sun exposure.
Note: The heat index, also known as 'feels like' or 'apparent temperature', quantifies the warmth felt when relative humidity is considered. The impact of weather on an individual can be subjective, affected by the person's activity and heat perception, which can vary due to elements including wind, clothing, and metabolic differences. Be aware that direct exposure to sunlight increases heat impact and may raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly important for children. Young kids are often more at risk than adults as they tend to perspire less. Besides, their skin surface is larger relative to their small bodies, and their increased heat output from their active lifestyle compounds their risk.
The body's innate mechanism to counteract overheating is through perspiration, as it leverages the cooling effects of sweat evaporation. Under high air temperature and high humidity (high heat index) conditions, the body's ability to perspire is compromised, increasing the sensation of heat. As body temperatures escalate without effective heat release, one might face dehydration threats.

Humidity

In Chợ Chu, the average relative humidity in September is 86%.

Rainfall

In Chợ Chu, Vietnam, in September, it is raining for 24.1 days, with typically 5.91" of accumulated precipitation. Throughout the year, there are 248.9 rainfall days, and 52.68" of precipitation is accumulated.

Daylight

In Chợ Chu, the average length of the day in September is 12h and 16min.
On the first day of the month, sunrise is at 05:40 and sunset at 18:14. On the last day of September, sunrise is at 05:48 and sunset at 17:46 +07.

Sunshine

In September, the average sunshine is 7.5h.

UV index

The months with the highest UV index are April through September, with an average maximum UV index of 6. A UV Index of 6 to 7 symbolizes a high threat to health from unsafe exposure to UV radiation for the average person.
Note: The UV index of 6 during September translates into the following guidance:
Incorporate safeguards and honour sun safety principles. Protection from skin and eye damage is obligatory. Stay in the shade and limit sun exposure from 10 a.m. to 4 p.m., when UV radiation is most potent. Keep in mind that shade structures like parasols or canopies do not offer full protection. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat.