September weather forecastLan Trà, Vietnam

Weather in September

The first month of the autumn, September, is still a hot month in Lan Trà, Vietnam, with temperature in the range of an average low of 25.3°C (77.5°F) and an average high of 30.7°C (87.3°F).

Temperature

September's weather records an average high-temperature of a still tropical 30.7°C (87.3°F), showing little deviation from August. Lan Trà records an average low of 25.3°C (77.5°F) throughout the nights in September.

Heat index

The heat index value during September is appraised at a scorching 40°C (104°F). Incorporate additional preventive steps, heat exhaustion and heat cramps are possible. Long-lasting activity may cause heatstroke.
Given the heat index, its values are aligned with shaded sites and gentle winds. 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 'real feel', stands as a testimony to how temperature and humidity combine to impact our sense of warmth. This effect is personal, shaped by the individual's physical activity and heat sensitivity, influenced by factors including wind, clothing, and metabolic variances. One should be aware that direct sunshine can amplify the perceived temperature, raising the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely vital to babies and toddlers. Kids frequently fail to realize the necessity for resting and hydrating. Thirst is an advanced indication of dehydration - hence, maintaining hydration, especially during extended physical activities, becomes essential.
The physiological response of the human body to excess warmth is to perspire, thereby cooling itself through sweat evaporation. When relative humidity is heightened, it slows the rate of evaporation, thereby decreasing the body's ability to shed heat and creating a sensation of overheating. Heat-related disorders may develop if heat gain in the body overshadows its cooling capacity, leading to elevated temperatures.

Humidity

In Lan Trà, the average relative humidity in September is 80%.

Rainfall

In Lan Trà, in September, during 22.7 rainfall days, 156mm (6.14") of precipitation is typically accumulated. 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 15min.
On the first day of the month, sunrise is at 05:41 and sunset at 18:12. On the last day of September, sunrise is at 05:47 and sunset at 17:46 +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 of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV rays for the ordinary person.
Note: In September, a daily maximum UV index of 6 leads to the following instructions:
Take precautions against overexposure. Protection against sun damage is needed. Avoid direct sunlight between the hours of 10 a.m. and 4 p.m., when UV radiation is at its peak. Keep in mind that shade structures may not provide complete protection. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades.