September weather forecastKoo, Cameroon
September
Weather in September
September, the first month of the autumn in Koo, is still a warm month, with an average temperature ranging between max 28.7°C (83.7°F) and min 23.4°C (74.1°F).Temperature
The advent of September presents an average high-temperature of a still warm 28.7°C (83.7°F), maintaining a close correlation with the preceding month. The average low-temperature during September nights is a still moderately hot 23.4°C (74.1°F).Heat index
September's average heat index is estimated at a sweltering 35°C (95°F). Undertake additional safety actions, risk of heat cramps and heat exhaustion is significant. Persistent activity may induce heatstroke.Records show heat index calculations are tailored for shaded regions and mild winds. 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', is a measure of how hot it feels when the actual air humidity is factored in. The impact of weather is individual, with diverse individuals experiencing it differently due to variations in body mass, height, and activity levels. When in direct sunlight, one should be cautious as it can raise the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are essentially critical for children. Children often miss understanding the importance of rest and rehydration. Thirst usually appears late during dehydration - therefore, maintaining hydration, particularly during long physical activities, is essential.
As a reaction to high temperatures, the human body begins to perspire, using the evaporation of sweat to lower its temperature. When there is an excess of moisture in the atmosphere, the efficiency of the evaporation process is lessened, leading to less efficient body cooling and a sensation of overheating. Accumulating heat beyond the body's cooling measures leads to rising temperatures and potential ailments.
Humidity
The average relative humidity in September in Koo is 84%.Rainfall
In Koo, Cameroon, in September, during 25.8 rainfall days, 165mm (6.5") of precipitation is typically accumulated. In Koo, during the entire year, the rain falls for 272.8 days and collects up to 1382mm (54.41") of precipitation.Daylight
In September, the average length of the day in Koo is 12h and 8min.On the first day of September, sunrise is at 06:15 and sunset at 18:26. On the last day of the month, sunrise is at 06:08 and sunset at 18:13 WAT.
Sunshine
In September, the average sunshine is 7h.UV index
The months with the lowest UV index are June through September, 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 the average person.Note: The maximum daily UV index of 6 in September interprets into the following recommendations:
Endorse precautions and be consistent with sun safety guidelines. Preventing sunburn is paramount. Stay in the shade and avoid direct Sun exposure from 10 a.m. to 4 p.m., a period when UV radiation is particularly strong, noting that parasols or canopies may not offer total sun protection. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Koo, Cameroon
- Average high temperature in September: 28.7°C
The warmest months (with the highest average high temperature) are January and February (33.7°C).
The months with the lowest average high temperature are July and August (27.9°C).
- Average low temperature in September: 23.4°C
The month with the highest average low temperature is March (25.6°C).
The coldest months (with the lowest average low temperature) are July and September (23.4°C).
Average pressure in September
Koo, Cameroon
- Average pressure in September: 1013.1mbar
The month with the highest atmospheric pressure is July (1013.9mbar).
The month with the lowest atmospheric pressure is February (1010.1mbar).
Average wind speed in September
Koo, Cameroon
- Average wind speed in September: 6.7km/h
The windiest month (with the highest average wind speed) is August (7.9km/h).
The calmest months (with the lowest average wind speed) are October and November (6km/h).
Average humidity in September
Koo, Cameroon
- Average humidity in September: 84%
The month with the highest relative humidity is July (86%).
The months with the lowest relative humidity are January and February (72%).
Average rainfall in September
Koo, Cameroon
- Average rainfall in September: 165mm
The wettest month (with the highest rainfall) is July (249mm).
The driest month (with the least rainfall) is December (23mm).
Average rainfall days in September
Koo, Cameroon
- Average rainfall days in September: 25.8 days
The months with the highest number of rainy days are July and October (28 days).
The month with the least rainy days is December (14.3 days).
Average daylight in September /
Average sunshine in September
Koo, Cameroon
- 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 0min
The month with the most sunshine is December (Average sunshine: 9h and 24min).
The month with the least sunshine is July (Average sunshine: 5h and 36min).
Average sunshine days in September
Koo, Cameroon
- Average sunshine days in September: 3.1 days
The month with the most sunshine days is January (10.8 days).
The month with the least sunshine days is October (2 days).
Average UV index in September
Koo, Cameroon
- Average UV index in September: 6
The months with the highest UV index are January, February, March, April, May, October, November and December (UV index 7).
The months with the lowest UV index are June, July, August and September (UV index 6).
Average cloud cover in September
Koo, Cameroon
- Average cloud cover in September: 55
The month with the most cloud cover is July (Cloud cover 65).
The month with the least cloud cover is December (Cloud cover 21).
Average visibility in September
Koo, Cameroon
- Average visibility in September: 9km
The months with the highest visibility are January, February, March and December (10km).
The months with the lowest visibility are April, May, June, July, August, September, October and November (9km).





