September weather forecastMongoumba, Central African Republic
September
Weather in September
September, the first month of the autumn in Mongoumba, is also a moderately hot month, with temperature in the range of an average high of 29.7°C (85.5°F) and an average low of 20.4°C (68.7°F).Temperature
The shift from August to September is characterized by an average high-temperature of a still moderately hot 29.7°C (85.5°F), not significantly different from the 29.3°C (84.7°F) of August. Throughout September, Mongoumba experiences a low-temperature average of 20.4°C (68.7°F).Heat index
The heat index in September is estimated at a torrid 38°C (100.4°F). Greater preventive actions are needed, heat exhaustion and heat cramps are likely. Persistent activity could provoke heatstroke.Note that heat index values are valued for light wind and location in the shade. If directly exposed to the sun, the heat index could rise by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', ties air temperature with relative humidity to produce the perceived temperature sensation. Factors encompassing physical activity, clothing, and metabolic differences have a role in shaping the individual's impression of temperature. It is essential to realize that direct sunlight can escalate the perceived temperature, increasing the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for children. Children usually face more risks than adults as their ability to sweat is less. Additionally, their larger skin surface in relation to their petite bodies and higher heat output due to their activities increases their vulnerability.
Evaporation of sweat is the main factor behind the cooling effect of perspiration in the human body. Elevated relative humidity diminishes evaporation, thereby reducing the body's ability to shed heat and creating a feeling of being too warm. As body temperatures escalate without effective heat release, one might face dehydration threats.
Humidity
With an average relative humidity of 86%, September is the most humid month.Rainfall
In Mongoumba, in September, during 26.9 rainfall days, 131mm (5.16") of precipitation is typically accumulated. Throughout the year, in Mongoumba, there are 199 rainfall days, and 962mm (37.87") of precipitation is accumulated.Daylight
The average length of the day in September is 12h and 8min.On the first day of September in Mongoumba, sunrise is at 05:40 and sunset at 17:50. On the last day of the month, sunrise is at 05:32 and sunset at 17:38 WAT.
Sunshine
September has the least sunshine of the year, with an average of 7.9h of sunshine.UV index
May through October, with an average maximum UV index of 6, are months with the lowest UV index in Mongoumba. A UV Index value of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV radiation for the average person.Note: A maximum UV index of 6 in September translates into the following recommendations:
Use protective steps and abide by sun safety guidelines. Safeguarding against skin and eye harm is necessary. Stay in the shade and limit direct Sun exposure from 10 a.m. to 4 p.m., a time when UV radiation is particularly strong. Remember, however, that shade structures may not provide complete protection. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays.
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Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Mongoumba, Central African Republic
- Average high temperature in September: 29.7°C
The warmest month (with the highest average high temperature) is February (37.6°C).
The month with the lowest average high temperature is August (29.3°C).
- Average low temperature in September: 20.4°C
The month with the highest average low temperature is March (23.4°C).
The coldest month (with the lowest average low temperature) is September (20.4°C).
Average pressure in September
Mongoumba, Central African Republic
- Average pressure in September: 1011.6mbar
The month with the highest atmospheric pressure is July (1012.2mbar).
The month with the lowest atmospheric pressure is February (1008mbar).
Average wind speed in September
Mongoumba, Central African Republic
- Average wind speed in September: 4.2km/h
The windiest month (with the highest average wind speed) is April (7km/h).
The calmest month (with the lowest average wind speed) is October (4.1km/h).
Average humidity in September
Mongoumba, Central African Republic
- Average humidity in September: 86%
The month with the highest relative humidity is September (86%).
The month with the lowest relative humidity is January (33%).
Average rainfall in September
Mongoumba, Central African Republic
- Average rainfall in September: 131mm
The wettest month (with the highest rainfall) is August (173mm).
The driest months (with the least rainfall) are January and December (2mm).
Average rainfall days in September
Mongoumba, Central African Republic
- Average rainfall days in September: 26.9 days
The month with the highest number of rainy days is August (27.9 days).
The month with the least rainy days is January (1.2 days).
Average daylight in September /
Average sunshine in September
Mongoumba, Central African Republic
- Average daylight in September: 12h and 6min
The month with the longest days is June (Average daylight: 12h and 18min).
The month with the shortest days is December (Average daylight: 11h and 54min).
- Average sunshine in September: 7h and 54min
The months with the most sunshine are July and December (Average sunshine: 9h and 54min).
The month with the least sunshine is September (Average sunshine: 7h and 54min).
Average sunshine days in September
Mongoumba, Central African Republic
- Average sunshine days in September: 2.1 days
The month with the most sunshine days is January (29.4 days).
The month with the least sunshine days is September (2.1 days).
Average UV index in September
Mongoumba, Central African Republic
- Average UV index in September: 6
The months with the highest UV index are January, February, March, April, November and December (UV index 7).
The months with the lowest UV index are May, June, July, August, September and October (UV index 6).
Average cloud cover in September
Mongoumba, Central African Republic
- Average cloud cover in September: 47
The month with the most cloud cover is August (Cloud cover 49).
The month with the least cloud cover is January (Cloud cover 8).
Average visibility in September
Mongoumba, Central African Republic
- Average visibility in September: 7km
The months with the highest visibility are January, February, March and December (10km).
The months with the lowest visibility are August and September (7km).





