September weather forecast
Ngoumbi, Gabon

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

Temperature

Ngoumbi in September records an average high-temperature of a still tropical 30.7°C (87.3°F), parallel to August. Ngoumbi, in September, witnesses an average low-temperature of 22.2°C (72°F).

Heat index

The average heat index in September is estimated at a blisteringly hot 40°C (104°F). Take additional safety steps, risk of heat exhaustion and heat cramps is notable. Prolonged activity may cause heatstroke.
Evaluating the heat index requires understanding its values in the shade and with gentle winds. In the presence of direct sunshine, the heat index could be augmented by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'apparent temperature', takes into account both air temperature and humidity to illustrate what people actually feel. Additional elements including metabolic differences, the level of physical activity, and attire have a role in shaping the individual's temperature perception. Direct exposure to sun rays can potentially augment the heat sensation, elevating the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values hold great significance to children. 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.
To cool down, the human body relies on perspiration, a process where excessive heat is eliminated as sweat evaporates. With high air temperature and humidity (high heat index) conditions, sweat production is restricted, leading to an amplified perception of heat. Overheating and dehydration threats arise when heat gain goes beyond what the body can comfortably shed.

Humidity

The average relative humidity in September is 80%.

Rainfall

In Ngoumbi, in September, it is raining for 19.2 days, with typically 62mm (2.44") of accumulated precipitation. In Ngoumbi, Gabon, during the entire year, the rain falls for 263 days and collects up to 1311mm (51.61") of precipitation.

Daylight

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

Sunshine

With an average of 5.2h of sunshine, September has the least sunshine of the year.

UV index

The months with the lowest UV index are March, May through November, with an average maximum UV index of 6. A UV Index reading of 6 to 7 represents a high health hazard from exposure to the Sun's UV radiation for the average person.
Note: In September, a daily maximum UV index of 6 leads to the following instructions:
Stay clear of intense sun exposure. Solar protection is of utmost significance. Stay in the shade and avoid direct Sun exposure from 10 a.m. to 4 p.m., a time when UV radiation is at its strongest, and remember that parasols or canopies do not offer full protection. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat.