September weather forecast
Phong lạc, Vietnam

September, the first month of the autumn in Phong lạc, is still a tropical month, with an average temperature varying between 30.8°C (87.4°F) and 25.9°C (78.6°F).

Temperature

Phong lạc indicates an average high-temperature of a still tropical 30.8°C (87.4°F) in September, showing minor variation from August's 31.6°C (88.9°F). Phong lạc experiences a subtle drop in temperature during the September nights, recording an average of 25.9°C (78.6°F).

Heat index

The heat index for September is computed to be a sweltering 39°C (102.2°F). Use additional protective measures, heat cramps and heat exhaustion are possible outcomes. Continuous activity might lead to heatstroke.
In the scope of the heat index, its values resonate with shade and light wind conditions. The heat index may scale up by 15 Fahrenheit (8 Celsius) degrees with direct sun exposure.
Note: The heat index, also known as 'feels like' or 'real feel', unifies temperature and humidity readings to offer a comprehensive feel of warmth. The impression of weather on a person can be swayed by additional aspects, including metabolic variations, pregnancy, and activity levels. One's exposure to direct sunlight has the potential to intensify the heat sensation, increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for babies and toddlers. Children usually face more risks than adults as their ability to sweat is less. Additionally, their larger skin surface in relation to their petite bodies and higher heat output due to their activities increases their vulnerability.
Humans rely on perspiration as a cooling mechanism, wherein the evaporating sweat counteracts excessive warmth. When relative humidity increases, the body's capacity to evaporate heat decreases, leading to a heightened sense of warmth. 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 77%.

Rainfall

In Phong lạc, during September, the rain falls for 20.9 days and regularly aggregates up to 89mm (3.5") of precipitation. In Phong lạc, Vietnam, 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 the month, sunrise is at 05:51 and sunset at 18:08. On the last day of September, sunrise is at 05:48 and sunset at 17:51 +07.

Sunshine

The average sunshine in September 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 of 6 to 7 symbolizes a high health risk from unprotected exposure to Sun's UV rays for the ordinary person.
Note: The average daily UV index of 7 in September transforms into the following instructions:
Steer clear of overexposure. Fair-skinned individuals can be scorched in less than 20 minutes. Avoid direct Sun exposure from 10 a.m. to 4 p.m., a period when UV radiation is most intense, and remember that not all shade structures provide full protection. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration.