September weather forecastThien Ke, Vietnam

Weather in September

The first month of the autumn, September, is still a hot month in Thien Ke, Vietnam, 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 advent of September sees the average high-temperature at a still tropical 30.9°C (87.6°F), subtly shifted from August's 31.9°C (89.4°F). Thien Ke, in September, experiences an average temperature of 23.2°C (73.8°F) at night.

Heat index

September's heat index is estimated at a blisteringly hot 42°C (107.6°F). Incorporate extra safety measures to avoid heat exhaustion and heat cramps. Continuous activity could provoke heatstroke.
Heat index values are typically calculated for conditions of shade and a light breeze. Direct sunlight might lead to a heat index increase by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'feels like', binds temperature metrics with humidity values to give a sense of the actual warmth. This effect is subjective, differing among individuals based on their physical activity and perception of heat, which can be influenced by factors like wind, clothing, and metabolic variances. It is important to note that direct sunlight can intensify the weather impact, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Young ones often do not realize the necessity to rest and replenish their fluids. Thirst is a delayed indication of dehydration - keeping hydrated, particularly in prolonged physical activity, is crucial.
When faced with excessive heat, the human body begins to perspire, utilizing the cooling benefits of sweat evaporation. Under conditions of high temperature and humidity (enhanced heat index), sweat production is compromised, exacerbating the sensation of warmth. Overheating can ensue when the body accumulates more heat than it can release, and dehydration severity may vary.

Humidity

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

Rainfall

In Thien Ke, during September, the rain falls for 22.4 days and regularly aggregates up to 204mm (8.03") of precipitation. Throughout the year, there are 236.6 rainfall days, and 1444mm (56.85") of precipitation is accumulated.

Daylight

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

Sunshine

In September, the average sunshine is 8.3h.

UV index

In Thien Ke, Vietnam, the average daily maximum UV index in September is 6. A UV Index of 6 to 7 symbolizes a high health vulnerability from unsafe exposure to UV radiation for ordinary individuals.
Note: The daily high UV index of 6 in September translates into this advice:
Elude overexposure. Fair-skinned people could get burnt in less than 20 minutes. Seek shade and limit direct Sun exposure between 10 a.m. and 4 p.m., when UV radiation is at its peak, but be aware that not all shade structures provide complete sun protection. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes.