September weather forecastPhúc Tinh, Vietnam

Weather in September

September, the first month of the autumn in Phúc Tinh, is also a hot month, with an average temperature ranging between min 25.3°C (77.5°F) and max 30.7°C (87.3°F).

Temperature

September records an average high-temperature of a still tropical 30.7°C (87.3°F), indicating a minor variation from the preceding month. September nights cool down to an average low-temperature of 25.3°C (77.5°F).

Heat index

The heat index for September is calculated to be a blistering 40°C (104°F). Implement additional safety measures to avoid heat cramps and heat exhaustion. Persistent activity might trigger heatstroke.
Bear in mind that the heat index values are determined for shaded areas and light breezes. Heat index values might soar by up to 15 Fahrenheit (8 Celsius) degrees with exposure to direct sunshine.
Note: The heat index, also known as 'felt air temperature' or 'feels like', is an index that combines air temperature and relative humidity to determine the human-perceived temperature equivalent. The influence of weather is personal, differing among individuals based on variations in body mass, stature, and the degree of physical exertion. When in direct sunlight, one should be cautious as it can raise the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant 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.
Perspiration is the body's default response to elevated temperatures, as it promotes the evaporation of sweat to achieve cooling. A surge in relative humidity can disrupt the body's normal cooling function by slowing evaporation, hence reducing the rate at which the body cools and intensifying the perception of heat. When the heat gained surpasses the body's cooling capacity, temperatures rise, signaling potential health concerns.

Humidity

The average relative humidity in September is 80%.

Rainfall

In Phúc Tinh, during September, the rain falls for 22.7 days and regularly aggregates up to 156mm (6.14") of precipitation. Throughout the year, there are 219.4 rainfall days, and 918mm (36.14") of precipitation is accumulated.

Daylight

In September, the average length of the day is 12h and 16min.
On the first day of September, sunrise is at 05:39 and sunset at 18:12. On the last day of the month, sunrise is at 05:46 and sunset at 17:45 +07.

Sunshine

In September, the average sunshine is 9.3h.

UV index

In September, the average daily maximum UV index is 6. A UV Index value of 6 to 7 symbolizes a high health hazard from unsafe exposure to UV radiation for the ordinary person.
Note: The average daily UV index of 6 in September transforms into the following instructions:
Embrace precautions and observe sun safety norms. Evasion of sunburn is a necessity. 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. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation.