September weather forecastMboungou, Gabon
September
Weather in September
The first month of the spring, September, is still a hot month in Mboungou, Gabon, with an average temperature ranging between max 30.5°C (86.9°F) and min 21.5°C (70.7°F).Temperature
September's onset sees an average high-temperature of a still hot 30.5°C (86.9°F), exhibiting a slight fluctuation from the previous month. The low-temperature average for Mboungou during September stands at an agreeable 21.5°C (70.7°F).Heat index
For most parts of September, the heat index is estimated at a sweltering 39°C (102.2°F). Exercise special caution, heat exhaustion and heat cramps are probable. Prolonged activity may induce heatstroke.Heat index guidelines indicate values are for light wind scenarios and shaded regions. 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 'feels like' or 'real feel', reflects the feeling of heat when considering both air temperature and humidity. The influence of weather is personal, with a diverse population experiencing it differently due to differences in body mass, stature, and degree of activity. Consider that direct sun exposure can intensify the felt heat, adding potentially 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are highly important for children. Young children typically face greater hazards than adults because they do not sweat as much. Their larger skin surface in comparison to their little bodies and the high heat production from their active nature compounds their vulnerability.
The body's natural response to excessive warmth is perspiration, as it allows for cooling through sweat evaporation. In situations of high air temperature combined with high humidity (significant heat index), the body's ability to perspire is reduced, heightening the sense of warmth. When the body is unable to balance heat gain, its temperature elevates, which may induce thermal illnesses.
Humidity
In September, the average relative humidity is 78%.Rainfall
In Mboungou, during September, the rain falls for 22.6 days and regularly aggregates up to 84mm (3.31") of precipitation. Throughout the year, there are 297.6 rainfall days, and 1831mm (72.09") of precipitation is accumulated.Daylight
In Mboungou, the average length of the day in September is 12h and 6min.On the first day of the month, sunrise is at 06:12 and sunset at 18:17. On the last day of September, sunrise is at 06:01 and sunset at 18:08 WAT.
Sunshine
With an average of 5.3h of sunshine, September has the least sunshine of the year in Mboungou, Gabon.UV index
The average daily maximum UV index in September is 6. A UV Index value of 6 to 7 symbolizes a high health risk from unprotected exposure to Sun's UV rays for the average person.Note: A maximum UV index of 6 in September translates into the following recommendations:
Apply measures and align with sun safety principles. Safeguarding against skin and eye injury is pivotal. UV radiation from the sun is at its strongest between 10 a.m. and 4 p.m. Try to limit direct exposure during these hours. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Mboungou, Gabon
- Average high temperature in September: 30.5°C
The warmest month (with the highest average high temperature) is March (32.1°C).
The month with the lowest average high temperature is October (29.9°C).
- Average low temperature in September: 21.5°C
The month with the highest average low temperature is March (22.2°C).
The coldest month (with the lowest average low temperature) is July (19.7°C).
Average pressure in September
Mboungou, Gabon
- Average pressure in September: 1013.1mbar
The month with the highest atmospheric pressure is July (1014.2mbar).
The months with the lowest atmospheric pressure are February and March (1010.3mbar).
Average wind speed in September
Mboungou, Gabon
- Average wind speed in September: 5.5km/h
The windiest month (with the highest average wind speed) is August (6km/h).
The calmest month (with the lowest average wind speed) is December (3.8km/h).
Average humidity in September
Mboungou, Gabon
- Average humidity in September: 78%
The month with the highest relative humidity is November (89%).
The month with the lowest relative humidity is August (70%).
Average rainfall in September
Mboungou, Gabon
- Average rainfall in September: 84mm
The wettest month (with the highest rainfall) is October (275mm).
The driest month (with the least rainfall) is July (13mm).
Average rainfall days in September
Mboungou, Gabon
- Average rainfall days in September: 22.6 days
The month with the highest number of rainy days is December (30.4 days).
The month with the least rainy days is July (10.3 days).
Average daylight in September /
Average sunshine in September
Mboungou, Gabon
- Average daylight in September: 12h and 6min
The month with the longest days is December (Average daylight: 12h and 12min).
The month with the shortest days is June (Average daylight: 12h and 0min).
- Average sunshine in September: 5h and 18min
The month with the most sunshine is January (Average sunshine: 7h and 24min).
The month with the least sunshine is September (Average sunshine: 5h and 18min).
Average sunshine days in September
Mboungou, Gabon
- Average sunshine days in September: 3.7 days
The month with the most sunshine days is July (15 days).
The month with the least sunshine days is October (0.4 days).
Average UV index in September
Mboungou, Gabon
- Average UV index in September: 6
The month with the highest UV index is March (UV index 7).
The month with the lowest UV index is October (UV index 5).
Average cloud cover in September
Mboungou, Gabon
- Average cloud cover in September: 70
The month with the most cloud cover is October (Cloud cover 77).
The month with the least cloud cover is July (Cloud cover 54).
Average visibility in September
Mboungou, Gabon
- Average visibility in September: 9km
The month with the highest visibility is August (10km).
The month with the lowest visibility is November (5km).





