September weather forecast
Ndjole, Gabon

September is characterized by a significant increase in rainfall to 62mm (2.44"), evident of the shift towards a more rainy season. Temperatures remain steady, showcasing the phenomenal weather predictability in Ndjole. The annual consistency in daylight hours means that the high rainfall doesn't prevent residents from pursuing outdoor activities. Although cloud coverage increases slightly, it doesn't impact much on the regular sunlight distribution. Overall, September maintains the gradually evolving gradation in weather changes as residents anticipate the coming months.

Temperature

The dawn of September in Ndjole registers an average high temperature of a still hot 30.7°C (87.3°F), nearly the same as the a tropical 30.7°C (87.3°F) observed in August. Throughout September, the temperature tends to fall to a consistent average low of 22.2°C (72°F).

Heat index

During September, the heat index is evaluated at a scorching 40°C (104°F). Greater safety measures are needed, risk of heat exhaustion and heat cramps is high. Continuous activity might trigger heatstroke.
Research indicates the heat index considers values in shaded locales and with light winds. Direct sunlight exposure may result in a rise of the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'real feel', joins air temperature with relative humidity to produce a temperature perception for humans. The experience of temperature can be subjective, varying based on the individual's activity and heat perception, influenced by factors like wind, attire, and metabolic variations. It is noteworthy to mention that direct sunlight exposure can augment the felt temperature, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are essentially critical for children. Children frequently underestimate the necessity to rest and hydrate. Thirst is a late sign of dehydration - thus, it is vital to stay hydrated, particularly during lengthy physical exercises.
As a reaction to high temperatures, the human body begins to perspire, using the evaporation of sweat to lower its temperature. In the presence of abundant moisture in the atmosphere, the cooling process through evaporation is hindered, causing the body to feel excessively warm. When heat surpasses the body's release mechanisms, dehydration and overheating risks become pronounced.

Humidity

In September, the average relative humidity is 80%.

Rainfall

In Ndjole, in September, during 19.2 rainfall days, 62mm (2.44") of precipitation is typically accumulated. In Ndjole, 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 Ndjole, Gabon, is 12h and 7min.
On the first day of the month, sunrise is at 06:13 and sunset at 18:20. On the last day of September, in Ndjole, sunrise is at 06:03 and sunset at 18:10 WAT.

Sunshine

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

UV index

The months with the lowest UV index in Ndjole are March, May through November, with an average maximum UV index of 6. A UV Index estimate of 6 to 7 represents a high health hazard from unsafe exposure to UV radiation for the average person.
Note: In September, the UV index of 6 transforms into the following advice:
Sustain precautions and conform to sun safety norms. Preventing sunburn is necessary. It's important to stay in the shade and limit exposure to the sun from 10 a.m. to 4 p.m., when UV radiation is most intense, although remember that shade structures may not provide full sun protection. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses.