September weather forecastNgouassa, Gabon

Weather in September

September, the first month of the spring in Ngouassa, is still a hot month, with an average temperature fluctuating between 21.5°C (70.7°F) and 30.5°C (86.9°F).

Temperature

The transition from August to September sees average high-temperatures adjusting to a still tropical 30.5°C (86.9°F), from a not significantly different 31.4°C (88.5°F). During September, the nighttime temperature averages to an agreeable 21.5°C (70.7°F).

Heat index

In September, the average heat index is evaluated at a sweltering 39°C (102.2°F). Greater safety measures are needed, risk of heat exhaustion and heat cramps is high. Continuous activity might trigger heatstroke.
In the scope of the heat index, its values resonate with shade and light wind conditions. A rise in the heat index by 15 Fahrenheit (8 Celsius) degrees may result from direct sunlight exposure.
Note: The heat index, also known as 'feels like' or 'felt air temperature', is the outcome of merging air's temperature and its humidity metrics. This effect is personal, influenced by the individual's physical activity and heat sensitivity, shaped by factors including wind, attire, and metabolic variations. Direct exposure to the sun's rays can enhance the felt temperature, increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values hold great significance to children. Kids frequently ignore the importance of taking a break and rehydrating. Thirst is a late symptom of dehydration - thus, it is crucial to stay hydrated, especially during long-lasting physical activities.
To cool down, the human body relies on perspiration, a process where excessive heat is eliminated as sweat evaporates. When there is abundant moisture in the air, the body's cooling through the evaporation process becomes less effective, leading to the sensation of overheating. Accumulating heat beyond the body's cooling measures leads to rising temperatures and potential ailments.

Humidity

In September, the average relative humidity is 78%.

Rainfall

In Ngouassa, Gabon, during September, the rain falls for 22.6 days and regularly aggregates up to 84mm (3.31") of precipitation. In Ngouassa, 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 7min.
On the first day of the month, sunrise is at 06:11 and sunset at 18:17. On the last day of September, 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 of 6 to 7 symbolizes a high health vulnerability from unsafe exposure to UV radiation for the average person.
Note: The daily high UV index of 6 during September translates into the following recommendations:
Stick with precautions and abide by sun safety procedures. Evading sunburn is essential. Avoid direct Sun exposure and stay in the shade between 10 a.m. and 4 p.m., a time when UV radiation is most intense, noting that not all shade structures offer full protection. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage.