September weather forecast
Divévi, Gabon

The first month of the spring, September, is also a hot month in Divévi, Gabon, with an average temperature ranging between max 30.5°C (86.9°F) and min 21.5°C (70.7°F).

Temperature

Divévi records a slight change with September's average high-temperatures adjusting to a still tropical 30.5°C (86.9°F) from August's 31.4°C (88.5°F). Throughout September, Divévi's nights cool down to an average of 21.5°C (70.7°F).

Heat index

Throughout September, the heat index is appraised at a very hot 39°C (102.2°F). Take extra safety measures to prevent heat exhaustion and heat cramps. Heatstroke could follow lengthy activity.
Take into consideration that the heat index values are calculated for shade and light wind conditions. Direct sunlight can potentially boost the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', quantifies the warmth felt when relative humidity is considered. A person's impression of weather can be shaped by several aspects, among them metabolic variations, pregnancy, and levels of physical activity. When exposed to direct sunlight, it's possible for the heat index to increase by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are primarily vital for children. Kids generally face higher risks than adults as they sweat less. Along with their large skin surface compared to their small bodies and higher heat production due to their activities, their vulnerability is increased.
Evaporation of sweat is the main factor behind the cooling effect of perspiration in the human body. Under conditions of high relative humidity, the rate of evaporation decreases. This results in the body retaining more heat than under conditions of dry air. Heat-related disorders may develop if heat gain in the body overshadows its cooling capacity, leading to elevated temperatures.

Humidity

In September, the average relative humidity is 78%.

Rainfall

In Divévi, during September, the rain falls for 22.6 days and regularly aggregates up to 84mm (3.31") of precipitation. In Divévi, during the entire year, the rain falls for 297.6 days and collects up to 1831mm (72.09") of precipitation.

Daylight

The average length of the day in September is 12h and 6min.
On the first day of September, sunrise is at 06:12 and sunset at 18:16. On the last day of the month, sunrise is at 06:00 and sunset at 18:08 WAT.

Sunshine

The month with the least sunshine is September, with an average of 5.3h of sunshine.

UV index

In September, the average daily maximum UV index is 6. A UV Index value of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV radiation for average individuals.
Note: In September, the maximum UV index of 6 suggests this advice:
Shield from overexposure. Defense against sun-related harm is required. Avoid direct Sun exposure and seek shade from 10 a.m. to 4 p.m., the period of highest UV radiation. Remember, however, that not all shade structures offer full protection. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat.