September weather forecast
Thien Ke, Vietnam

September, the first month of the autumn in Thien Ke, is still a hot month, with temperature in the range of an average low of 23.2°C (73.8°F) and an average high of 30.9°C (87.6°F).

Temperature

The arrival of September sees an average high-temperature of a still hot 30.9°C (87.6°F), hardly diverging from August's 31.9°C (89.4°F). In Thien Ke, the average low-temperature during the month of September is a moderately hot 23.2°C (73.8°F).

Heat index

In September, the average heat index is evaluated at a scorching 42°C (107.6°F). Implement more safety precautions, heat cramps and heat exhaustion may happen. Persistent activity could induce heatstroke.
Realize that the values for the heat index are set for shaded places and light winds. Heat index values can rise by 15 Fahrenheit (8 Celsius) degrees when in direct sunlight.
Note: The heat index, also known as 'feels like' or 'apparent temperature', joins air temperature with relative humidity to produce a temperature perception for humans. The perception of temperature can be subjective, varying based on activity and individual heat sensitivity, influenced by factors like wind, attire, and metabolic variations. 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 are extremely significant for children. Young children are generally more endangered than adults, as they usually less sweat. And also, due to larger skin surface relative to their small bodies and higher heat production as a result of their activity.
By perspiring, the human body can shed its excessive warmth since evaporated sweat cools it off. An increase in relative humidity hinders the body's normal cooling function by reducing evaporation, thereby decreasing the rate of body cooling and enhancing the sense of warmth. Excessive heat that's not properly managed leads to increased body temperatures and resultant health issues.

Humidity

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

Rainfall

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

Daylight

In September, the average length of the day in Thien Ke is 12h and 16min.
On the first day of September in Thien Ke, sunrise is at 05:40 and sunset at 18:13. On the last day of the month, sunrise is at 05:48 and sunset at 17:46 +07.

Sunshine

In Thien Ke, the average sunshine in September is 8.3h.

UV index

The average daily maximum UV index in September in Thien Ke is 6. A UV Index value of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV rays for the ordinary person.
Note: The daily high UV index of 6 in September translates into this advice:
Implement preventive steps and embrace sun safety standards. Protection from skin and eye distress is compulsory. Between 10 a.m. and 4 p.m., UV radiation is strongest. Make an effort to avoid direct sunlight during this time, remembering that shade structures may not provide full sun protection. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days.