September weather forecast
Phương Linh, Vietnam

The first month of the autumn, September, is still a hot month in Phương Linh, Vietnam, with an average temperature varying between 30.9°C (87.6°F) and 23.2°C (73.8°F).

Temperature

The shift into September records an average high-temperature of a still hot 30.9°C (87.6°F), subtly varied from August's 31.9°C (89.4°F). During September, Phương Linh witnesses a consistent average low-temperature of 23.2°C (73.8°F).

Heat index

In September, the heat index is calculated to be a scorching 42°C (107.6°F). Implement heightened safety measures - risk of heat exhaustion and heat cramps is increased. Prolonged activity may result in heatstroke.
Bear in mind that the heat index values are determined for shaded areas and light breezes. The heat index has the potential to rise by 15 Fahrenheit (8 Celsius) degrees with direct sunshine exposure.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', is a metric representing the sensation of warmth when air temperature and moisture come together. The effect is experienced differently by individuals, hinging on unique characteristics such as body mass, stature, and level of activity. Understand that direct sun rays can influence the weather's impact, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values remain especially vital for babies and toddlers. Youngsters are usually more at risk than adults, considering they sweat less. Additionally, their high skin surface area compared to their little bodies and their high heat production due to activity increases their risk.
The natural cooling mechanism in humans involves perspiration, where the evaporation of sweat balances out excessive warmth. Higher relative humidity impedes evaporation, thus reducing heat dispersion from the body, culminating in a sensation of overheating. Rising body temperatures due to excess heat retention could signify impending heat disorders.

Humidity

August and September, with an average relative humidity of 83%, are the most humid months.

Rainfall

In Phương Linh, in September, during 22.4 rainfall days, 204mm (8.03") of precipitation is typically accumulated. In Phương Linh, during the entire year, the rain falls for 236.6 days and collects up to 1444mm (56.85") of precipitation.

Daylight

The average length of the day in September in Phương Linh is 12h and 16min.
On the first day of the month, sunrise is at 05:42 and sunset at 18:16. On the last day of September, sunrise is at 05:50 and sunset at 17:48 +07.

Sunshine

The average sunshine in September is 8.3h.

UV index

The average daily maximum UV index in September is 6. A UV Index reading of 6 to 7 represents a high health risk from exposure to the Sun's UV rays for the average person.
Note: A maximum high UV index of 6 in September translates into the following recommendations:
Exercise precautions and adapt sun safety practices. Defence against skin and eye affliction is paramount. Avoid exposure to the Sun and try to stay in the shade between 10 a.m. and 4 p.m., when UV radiation is most potent, but be aware that parasols or canopies may not offer full protection. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage.