September weather forecastMoutassou, Gabon

Weather in September

September, the first month of the spring in Moutassou, is still a tropical month, with an average temperature ranging between min 21.5°C (70.7°F) and max 30.5°C (86.9°F).

Temperature

The transition into September notes an average high-temperature of a still hot 30.5°C (86.9°F), revealing a mild distinction from the 31.4°C (88.5°F) in August. September nights in Moutassou, Gabon, experience a consistent temperature drop to an agreeable 21.5°C (70.7°F).

Heat index

In September, the average heat index is estimated at a fiery hot 39°C (102.2°F). Take more caution, heat exhaustion and heat cramps may occur. Long-lasting activity may cause heatstroke.
Keep in mind the heat index values are meant for areas in shade and with light wind. With direct sunlight, the heat index could increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', provides an understanding of perceived warmth by combining temperature and relative humidity. The influence of weather is personal, differing among a variety of individuals based on differences in body mass, stature, and the level of physical activity. Considering the impact of direct sunlight, it's possible for the heat index to surge by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are largely significant for babies and toddlers. Young people are generally more susceptible than adults because they perspire less. Furthermore, their proportionally larger skin surface to their petite bodies and the increased heat output from their actions add to the risk.
The human body has a built-in cooling mechanism through perspiration; evaporating sweat dissipates the excess heat. When the air contains significant moisture, the efficiency of the evaporation process decreases, preventing the body from cooling down effectively and creating a feeling of overheating. Heat-related disorders may develop if heat gain in the body overshadows its cooling capacity, leading to elevated temperatures.

Humidity

In Moutassou, Gabon, the average relative humidity in September is 78%.

Rainfall

In Moutassou, in September, it is raining for 22.6 days, with typically 84mm (3.31") of accumulated precipitation. Throughout the year, there are 297.6 rainfall days, and 1831mm (72.09") of precipitation is accumulated.

Daylight

In September, the average length of the day is 12h and 6min.
On the first day of September in Moutassou, sunrise is at 06:13 and sunset at 18:18. On the last day of the month, sunrise is at 06:01 and sunset at 18:09 WAT.

Sunshine

With an average of 5.3h of sunshine, September has the least sunshine of the year in Moutassou.

UV index

In September, the average daily maximum UV index is 6. A UV Index estimate of 6 to 7 represents a high health hazard 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:
Eschew overexposure. Those with light skin may suffer burns in fewer than 20 minutes. Between 10 a.m. and 4 p.m., the Sun emits the most powerful UV radiation. Limit direct exposure to the Sun during these hours. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.