September weather forecast
Dieu Viên, Vietnam

September, the first month of the autumn in Dieu Viên, is still a hot month, with temperature in the range of an average high of 30.2°C (86.4°F) and an average low of 25°C (77°F).

Temperature

With the arrival of September, Dieu Viên's average high-temperature registers at a still tropical 30.2°C (86.4°F), indicating a subtle variation from the previous month. In the month of September, Dieu Viên's average low-temperature falls to a warm 25°C (77°F).

Heat index

For September, the heat index is calculated to be a sweltering 38°C (100.4°F). Greater preventive actions are needed, heat exhaustion and heat cramps are likely. Persistent activity could provoke heatstroke.
Data suggests that the heat index is set for environments in shade and with a light wind. Direct sunshine exposure could raise heat index values by as much as 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', reflects the feeling of heat when considering both air temperature and humidity. Elements such as metabolic variations, being pregnant, and physical activity can impact one's weather perception. One must note that being under the direct sun can escalate the heat's effects, with the heat index possibly rising by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly important for children. Children often fail to recognize the requirement to rest and rehydrate. Thirst, being a late symptom of dehydration, underlines the importance of maintaining hydration, especially during ongoing physical activities.
Perspiring is how the human body naturally cools down, as sweat's evaporation takes away excess heat. Greater relative humidity lessens the rate of evaporation, thus decreasing the body's heat dispersal, which gives rise to a sensation of overheating. If heat absorption exceeds the body's cooling ability, body temperature can elevate, resulting in potential thermal illnesses.

Humidity

In Dieu Viên, the average relative humidity in September is 80%.

Rainfall

In Dieu Viên, during September, the rain falls for 24.8 days and regularly aggregates up to 134mm (5.28") of precipitation. In Dieu Viên, during the entire year, the rain falls for 260 days and collects up to 1343mm (52.87") of precipitation.

Daylight

The average length of the day in September is 12h and 13min.
On the first day of the month, sunrise is at 05:32 and sunset at 17:54. On the last day of September, in Dieu Viên, sunrise is at 05:32 and sunset at 17:34 +07.

Sunshine

The average sunshine in September is 8.6h.

UV index

March through September, with an average maximum UV index of 7, are months with the highest UV index. A UV Index reading of 6 to 7 represents a high health risk from unprotected exposure to Sun's UV rays for the ordinary person.
Note: The maximum daily UV index of 7 during September translates into the following directions:
Undertake protective measures and comply with sun safety rules. Shielding against skin and eye damage is essential. Remember that UV radiation from the Sun is strongest between 10 a.m. and 4 p.m. Make an effort to limit direct sun exposure during this time. Clothes that are both tight-knit and comfortably loose are prime choices for sun protection.