September weather forecast
Thạch Khê, Vietnam

The first month of the autumn, September, is still a hot month in Thạch Khê, Vietnam, with temperature in the range of an average low of 25.3°C (77.5°F) and an average high of 30.8°C (87.4°F).

Temperature

September experiences an average high-temperature of a still tropical 30.8°C (87.4°F), barely different from August's 31.8°C (89.2°F). Thạch Khê, during the month of September, experiences an average low-temperature of 25.3°C (77.5°F).

Heat index

Throughout September, the heat index is evaluated at a blistering 40°C (104°F). Incorporate additional safety actions, heat cramps and heat exhaustion are possible. Long-term activity may induce heatstroke.
It is important to note that the heat index values are for shaded areas and light wind scenarios. Facing direct sunlight may hike up the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', represents the fusion of temperature and moisture in the air to suggest how warm it feels. A person's impression of weather can be shaped by several aspects, among them metabolic variations, pregnancy, and levels of physical activity. Take note that direct exposure to the sun can increase the felt temperature, possibly adding 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are particularly relevant to children. Young individuals are generally in more danger than adults due to their lower capacity to sweat. Moreover, their large skin surface in relation to their small bodies and the increased heat generation from their activities makes them more vulnerable.
The body's inherent cooling system operates through perspiration, wherein evaporating sweat offsets excessive heat. When relative humidity is at high levels, the evaporation rate lessens, causing the body to keep more heat than it would in less humid conditions. If the body retains more heat than it can expel, the increasing temperature can lead to heat-related conditions.

Humidity

In Thạch Khê, the average relative humidity in September is 80%.

Rainfall

In Thạch Khê, during September, the rain falls for 23.2 days and regularly aggregates up to 166mm (6.54") of precipitation. Throughout the year, there are 219.9 rainfall days, and 927mm (36.5") of precipitation is accumulated.

Daylight

In September, the average length of the day is 12h and 13min.
On the first day of September, sunrise is at 05:31 and sunset at 17:54. On the last day of the month, sunrise is at 05:32 and sunset at 17:33 +07.

Sunshine

The average sunshine in September is 9.1h.

UV index

The months with the highest UV index are April through September, with an average maximum UV index of 7. 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 maximum UV index of 7 during September leads to these instructions:
Guard oneself from overexposure. Defence against sun injury is vital. The Sun's UV radiation is most intense from 10 a.m. to 4 p.m. Try to avoid direct sun exposure during these hours. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays.