September weather forecast
Mvengue, Gabon

The first month of the spring, September, is still a hot month in Mvengue, Gabon, with an average temperature fluctuating between 30.1°C (86.2°F) and 20.9°C (69.6°F).

Temperature

A minor adjustment in Mvengue's average high-temperature is noted with the start of September, touching a still tropical 30.1°C (86.2°F) from August's 31.8°C (89.2°F). Throughout September, the average low-temperature records at a pleasant 20.9°C (69.6°F).

Heat index

Throughout September, the heat index is estimated at a torrid 39°C (102.2°F). Incorporate special precautions, risk of heat exhaustion and heat cramps is substantial. Sustained activity could cause heatstroke.
Regarding the heat index, one should be aware it's determined by shaded settings and mild winds. An exposure to direct sunlight may lift the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'feels like', stands as a testimony to how temperature and humidity combine to impact our sense of warmth. This impact is subjective, influenced by the person's physical activity and individual heat perception, affected by factors including wind, attire, and metabolic differences. When directly under the sun, the weather's impact can intensify, possibly boosting the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are essentially critical for children. Youngsters frequently overlook the need for breaks and fluid intake. Thirst is an advanced sign of dehydration - thereby highlighting the importance of keeping hydrated, particularly during long physical activities.
Evaporation of sweat is the main factor behind the cooling effect of perspiration in the human body. In the presence of abundant moisture in the atmosphere, the cooling process through evaporation is hindered, causing the body to feel excessively warm. The body is at risk of dehydration and related complications when it fails to shed excessive heat.

Humidity

In Mvengue, the average relative humidity in September is 83%.

Rainfall

In September, the rain falls for 28.4 days. Throughout September, 171mm (6.73") of precipitation is accumulated. Throughout the year, in Mvengue, there are 295.9 rainfall days, and 1481mm (58.31") of precipitation is accumulated.

Daylight

The average length of the day in September is 12h and 6min.
On the first day of the month, sunrise is at 06:03 and sunset at 18:08. On the last day of September, sunrise is at 05:52 and sunset at 17:59 WAT.

Sunshine

In Mvengue, the average sunshine in September is 8h.

UV index

The month with the lowest UV index is September, with an average maximum UV index of 5. A UV Index value of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV radiation for the ordinary person.
Note: The maximum daily UV index of 5 in September converts into the following recommendations:
Take precautions - Protection against skin and eye damage is obliged. Around midday, solar radiation is most harmful; hence, exposure should be limited. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses.