September weather forecast
Mbonha, Gabon

The first month of the spring, September, is also a hot month in Mbonha, Gabon, with an average temperature varying between 30.9°C (87.6°F) and 21.1°C (70°F).

Temperature

Mbonha's September showcases an average high-temperature of a still tropical 30.9°C (87.6°F), hardly distinct from August's 32.3°C (90.1°F). During the month of September, the nighttime temperature in Mbonha, Gabon, falls to an average of 21.1°C (70°F).

Heat index

September's mean heat index is computed to be a blisteringly hot 42°C (107.6°F). Greater preventive actions are needed, heat exhaustion and heat cramps are likely. Persistent activity could provoke heatstroke.
The heat index's values are generally associated with conditions in shade and light breezes. Heat index values might soar by up to 15 Fahrenheit (8 Celsius) degrees with exposure to direct sunshine.
Note: The heat index, also known as 'felt air temperature' or 'real feel', binds temperature metrics with humidity values to give a sense of the actual warmth. The impression of weather on a person can be swayed by additional aspects, including metabolic variations, pregnancy, and activity levels. It is important to note that direct sunlight can intensify the weather impact, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are primarily vital for children. Kids are generally in more danger than adults because they perspire less. Their large skin surface area compared to their small bodies and the excessive heat due to their actions raises their risk.
The physiological way the human body responds to excessive heat is by inducing perspiration, using sweat evaporation as a cooling mechanism. With high air temperature and humidity (high heat index) conditions, sweat production is restricted, leading to an amplified perception of heat. When heat uptake goes beyond the body's cooling mechanisms, there's a surge in body temperature, posing health risks.

Humidity

The average relative humidity in September is 83%.

Rainfall

In September, in Mbonha, the rain falls for 28.1 days. Throughout September, 149mm (5.87") of precipitation is accumulated. In Mbonha, during the entire year, the rain falls for 311.1 days and collects up to 1474mm (58.03") of precipitation.

Daylight

In Mbonha, the average length of the day in September is 12h and 7min.
On the first day of September, sunrise is at 06:06 and sunset at 18:12. On the last day of the month, sunrise is at 05:55 and sunset at 18:02 WAT.

Sunshine

In Mbonha, the average sunshine in September is 7.7h.

UV index

The months with the lowest UV index in Mbonha are June, August through October, with an average maximum UV index of 6. A UV Index value of 6 to 7 symbolizes a high health vulnerability from unprotected exposure to Sun's UV rays for average individuals.
Note: In September, a regular UV index of 6 translates into these guidelines:
Implement precautions and maintain sun safety methods. Avoidance of sunburn is demanded. The time between 10 a.m. and 4 p.m. is when UV radiation is at its peak. Limit exposure to direct sunlight during these hours. Employ a hat with a wide brim for robust protection, cutting UV exposure by half.