September weather forecast
Ngoumbi, Gabon

September, the first month of the spring in Ngoumbi, is also a hot month, with an average temperature fluctuating between 30.7°C (87.3°F) and 22.2°C (72°F).

Temperature

September commences with an average high-temperature of a still tropical 30.7°C (87.3°F), showing little deviation from August's hot 30.7°C (87.3°F). Ngoumbi experiences an average low-temperature reading of 22.2°C (72°F) throughout September.

Heat index

September's average heat index is estimated at a blistering 40°C (104°F). Take additional safety steps, risk of heat exhaustion and heat cramps is notable. Prolonged activity may cause heatstroke.
Heat index details are generally centered around shaded locations and a mild breeze. Heat index values have the potential to be boosted by 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', blends air temperature and moisture content to represent the felt temperature to humans. The impression of weather on a person can be swayed by additional aspects, including metabolic variations, pregnancy, and activity levels. With direct sunlight, be aware that it might enhance the heat sensation, raising the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular importance for children. In general, younger individuals are at greater risk than adults because they tend to sweat less. Also, having a larger skin surface to body size ratio and greater heat production due to their active behavior contribute to this danger.
When the body gets too warm, it perspires, leading to sweat evaporation which cools it down. When relative humidity is at high levels, the evaporation rate lessens, causing the body to keep more heat than it would in less humid conditions. Heat-related complications, like dehydration, can manifest if the body's heat gain exceeds its dissipation capacity.

Humidity

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

Rainfall

In Ngoumbi, Gabon, during September, the rain falls for 19.2 days and regularly aggregates up to 62mm (2.44") of precipitation. In Ngoumbi, during the entire year, the rain falls for 263 days and collects up to 1311mm (51.61") of precipitation.

Daylight

In September, the average length of the day in Ngoumbi is 12h and 6min.
On the first day of the month, sunrise is at 06:19 and sunset at 18:24. On the last day of September, in Ngoumbi, sunrise is at 06:08 and sunset at 18:15 WAT.

Sunshine

The month with the least sunshine is September, with an average of 5.2h of sunshine.

UV index

The months with the lowest UV index in Ngoumbi are March, May through November, with an average maximum UV index of 6. A UV Index value of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV radiation for the average person.
Note: An average UV index of 6 in September transforms into this advice:
Persist with precautions and heed sun safety advice. Prevention of sunburn is compulsory. Remember that UV radiation from the Sun is strongest between 10 a.m. and 4 p.m. Make an effort to limit direct sun exposure during this time. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly.