Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
September
Weather in September
Temperature
The advent of September signifies a minor shift to an average high-temperature of a still hot 31.7°C (89.1°F), aligning closely with August. Koumi's temperature lowers to a mean of 22.2°C (72°F) during the nights in September.Heat index
The heat index value for September is evaluated at a blistering 42°C (107.6°F). Take special precautions - heat exhaustion and heat cramps are expected. Heatstroke may occur with lengthy activity.Research indicates the heat index considers values in shaded locales and with light winds. Heat index values may surge by up to 15 Fahrenheit (8 Celsius) degrees in the presence of direct sunlight.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', determines the feeling of heat when you account for the relative humidity. The impression of weather on a person can be swayed by additional aspects, including metabolic variations, pregnancy, and activity levels. Under direct sun rays, the felt temperature might be heightened, with the heat index increasing by 15 Fahrenheit (8 Celsius) degrees. Heat index values are largely significant for babies and toddlers. Youths are typically more endangered than adults since they usually sweat less. Their larger skin surface concerning their smaller bodies and higher heat production due to activity further adds to their vulnerability.
Perspiring is a crucial mechanism for the human body, allowing it to release excessive warmth through evaporating sweat. An increase in relative humidity retards evaporation, subsequently reducing the body's heat removal rate and leading to a sensation of being overly warm. Rising body temperatures resulting from an imbalance in heat absorption can lead to potential thermal issues.
Humidity
In Koumi, the average relative humidity in September is 76%.Rainfall
In Koumi, during September, the rain falls for 21.3 days and regularly aggregates up to 92mm (3.62") of precipitation. In Koumi, during the entire year, the rain falls for 125.4 days and collects up to 574mm (22.6") of precipitation.Daylight
In September, the average length of the day is 12h and 11min.On the first day of September, sunrise is at 06:07 and sunset at 18:27. On the last day of the month, sunrise is at 06:06 and sunset at 18:08 GMT.
Sunshine
In September, the average sunshine in Koumi is 8.8h.UV index
In September, the average daily maximum UV index is 7. A UV Index value of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV rays for the average person.Note: In September, a daily maximum UV index of 7 leads to the following instructions:
Act on precautions and pay attention to sun safety recommendations. Avoidance of sunburn is obligatory. 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 hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot is it in September?
What is the average humidity in September?
How much does it rain in September?
What is the average length of the day in September?
When are sunrise and sunset in September in Koumi?
How long on average sun shines in September in Koumi?
What is the UV index intensity in September?
Average temperature in September
Koumi, Burkina Faso
- Average high temperature in September: 31.7°C
The warmest month (with the highest average high temperature) is April (39.7°C).
The month with the lowest average high temperature is August (30.3°C).
- Average low temperature in September: 22.2°C
The months with the highest average low temperature are April and May (26.9°C).
The coldest month (with the lowest average low temperature) is January (18.8°C).
Average pressure in September
Koumi, Burkina Faso
- Average pressure in September: 1012.1mbar
The month with the highest atmospheric pressure is August (1012.3mbar).
The month with the lowest atmospheric pressure is April (1008.3mbar).
Average wind speed in September
Koumi, Burkina Faso
- Average wind speed in September: 6.7km/h
The windiest month (with the highest average wind speed) is May (10.6km/h).
The calmest month (with the lowest average wind speed) is September (6.7km/h).
Average humidity in September
Koumi, Burkina Faso
- Average humidity in September: 76%
The month with the highest relative humidity is August (80%).
The month with the lowest relative humidity is January (14%).
Average rainfall in September
Koumi, Burkina Faso
- Average rainfall in September: 92mm
The wettest month (with the highest rainfall) is August (160mm).
The driest months (with the least rainfall) are January and December (0mm).
Average rainfall days in September
Koumi, Burkina Faso
- Average rainfall days in September: 21.3 days
The month with the highest number of rainy days is August (26.2 days).
The month with the least rainy days is December (0.1 days).
Average daylight in September /
Average sunshine in September
Koumi, Burkina Faso
- Average daylight in September: 12h and 1min
The month with the longest days is June (Average daylight: 12h and 48min).
The month with the shortest days is December (Average daylight: 11h and 30min).
- Average sunshine in September: 8h and 5min
The months with the most sunshine are May and June (Average sunshine: 11h and 48min).
The month with the least sunshine is August (Average sunshine: 7h and 24min).
Average sunshine days in September
Koumi, Burkina Faso
- Average sunshine days in September: 6.4 days
The month with the most sunshine days is December (30.8 days).
The month with the least sunshine days is August (3.3 days).
Average UV index in September
Koumi, Burkina Faso
- Average UV index in September: 7
The months with the highest UV index are March, April and May (UV index 8).
The months with the lowest UV index are August and December (UV index 6).
Average cloud cover in September
Koumi, Burkina Faso
- Average cloud cover in September: 32
The month with the most cloud cover is August (Cloud cover 47).
The month with the least cloud cover is December (Cloud cover 5).
Average visibility in September
Koumi, Burkina Faso
- Average visibility in September: 9km
The months with the highest visibility are January, February, March, April, May, June, October, November and December (10km).
The months with the lowest visibility are July, August and September (9km).
