September weather forecastSonel-Louamba, Congo
September
Weather in September
The first month of the spring, September, is still a hot month in Sonel-Louamba, Congo, with an average temperature fluctuating between 32.3°C (90.1°F) and 22.3°C (72.1°F).Temperature
In Sonel-Louamba, temperatures reach their average annual highs in September, measuring 32.3°C (90.1°F) and a minimum average of 22.3°C (72.1°F).Heat index
September's heat index is calculated to be a sweltering 39°C (102.2°F). More preventive actions are needed, risk of heat exhaustion and heat cramps is significant. Prolonged activity may trigger heatstroke.One should be cognizant that the heat index values are tailored for shaded spots and mild winds. Exposure to the direct sun could elevate the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', offers an insight into how hot it feels when we factor in moisture content. This effect is personal, influenced by the individual's physical activity and heat sensitivity, shaped by factors including wind, attire, and metabolic variations. One should be aware that direct sunshine can amplify the perceived temperature, raising the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially vital to children. Juveniles are regularly less conscious of the need to recuperate and rehydrate. Thirst is a tardy symptom of dehydration - hydration, especially during lengthy physical activities, should be maintained.
The body's innate mechanism to counteract overheating is through perspiration, as it leverages the cooling effects of sweat evaporation. In the presence of elevated relative humidity, the evaporation rate decreases. This reduction leads to increased body heat retention compared to conditions of dry air. When heat gain exceeds the level the body can remove, body temperature begins to rise, and heat-related illnesses and disorders may develop.
Humidity
In September, the average relative humidity in Sonel-Louamba is 64%.Rainfall
In Sonel-Louamba, during September, the rain falls for 12 days and regularly aggregates up to 18mm (0.71") of precipitation. Throughout the year, there are 228.5 rainfall days, and 1086mm (42.76") of precipitation is accumulated.Daylight
In Sonel-Louamba, the average length of the day in September is 12h and 5min.On the first day of September in Sonel-Louamba, sunrise is at 06:05 and sunset at 18:07. On the last day of the month, sunrise is at 05:52 and sunset at 18:01 WAT.
Sunshine
The average sunshine in September in Sonel-Louamba is 8h.UV index
March, April, August and September, with an average maximum UV index of 7, are months with the highest UV index in Sonel-Louamba. A UV Index value of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV rays for the ordinary person.Note: The UV index of 7 during September leads to these advisories:
Guard oneself from overexposure. Defence against sun injury is vital. UV radiation from the Sun is most intense between 10 a.m. and 4 p.m. Try to avoid direct sunlight during this period. A wide-brimmed hat provides unparalleled sun protection for sensitive areas like the eyes, ears, and neck.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Sonel-Louamba, Congo
- Average high temperature in September: 32.3°C
The warmest month (with the highest average high temperature) is September (32.3°C).
The month with the lowest average high temperature is December (29.7°C).
- Average low temperature in September: 22.3°C
The month with the highest average low temperature is October (22.6°C).
The coldest month (with the lowest average low temperature) is July (19.6°C).
Average pressure in September
Sonel-Louamba, Congo
- Average pressure in September: 1013mbar
The month with the highest atmospheric pressure is July (1014.2mbar).
The month with the lowest atmospheric pressure is February (1010.5mbar).
Average wind speed in September
Sonel-Louamba, Congo
- Average wind speed in September: 8.5km/h
The windiest months (with the highest average wind speed) are August and September (8.5km/h).
The calmest months (with the lowest average wind speed) are April and May (4.2km/h).
Average humidity in September
Sonel-Louamba, Congo
- Average humidity in September: 64%
The month with the highest relative humidity is December (87%).
The month with the lowest relative humidity is August (63%).
Average rainfall in September
Sonel-Louamba, Congo
- Average rainfall in September: 18mm
The wettest month (with the highest rainfall) is November (190mm).
The driest month (with the least rainfall) is July (1mm).
Average rainfall days in September
Sonel-Louamba, Congo
- Average rainfall days in September: 12 days
The month with the highest number of rainy days is January (27.8 days).
The month with the least rainy days is July (2.2 days).
Average daylight in September /
Average sunshine in September
Sonel-Louamba, Congo
- Average daylight in September: 12h and 6min
The month with the longest days is December (Average daylight: 12h and 24min).
The month with the shortest days is June (Average daylight: 11h and 54min).
- Average sunshine in September: 8h and 0min
The month with the most sunshine is July (Average sunshine: 8h and 48min).
The month with the least sunshine is October (Average sunshine: 5h and 42min).
Average sunshine days in September
Sonel-Louamba, Congo
- Average sunshine days in September: 13.4 days
The month with the most sunshine days is July (26.2 days).
The month with the least sunshine days is January (2.3 days).
Average UV index in September
Sonel-Louamba, Congo
- Average UV index in September: 7
The months with the highest UV index are March, April, August and September (UV index 7).
The months with the lowest UV index are January, February, May, June, July, October, November and December (UV index 6).
Average cloud cover in September
Sonel-Louamba, Congo
- Average cloud cover in September: 48
The months with the most cloud cover are October and November (Cloud cover 61).
The month with the least cloud cover is July (Cloud cover 32).
Average visibility in September
Sonel-Louamba, Congo
- Average visibility in September: 10km
The months with the highest visibility are July, August and September (10km).
The months with the lowest visibility are January, February, March, April, May, November and December (7km).





