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 observes an average high-temperature of a still tropical 32.9°C (91.2°F), nearly identical to August's 31.4°C (88.5°F). In September, the temperature drops to an average of 23.4°C (74.1°F) at night.Heat index
During September, the heat index is appraised at an extremely hot 44°C (111.2°F). Take heed: Heat exhaustion and heat cramps are anticipated. Heatstroke is a potential outcome of continuous activity.Realize that the values for the heat index are set for shaded places and light winds. Direct exposure to sunlight could raise the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', is achieved by amalgamating air temperature with the relative humidity readings. Factors encompassing physical activity, clothing, and metabolic differences have a role in shaping the individual's impression of temperature. The sun, when shining directly, can have a significant impact on the perceived temperature, increasing the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for children. Children often do not understand the need to rest and hydrate. Thirst is a late manifestation of dehydration - therefore, it is essential to stay hydrated, particularly during prolonged physical activities.
The human body normally cools itself by perspiration. Excessive warmth is eliminated from the body by evaporation of sweat. In the presence of high relative humidity, the evaporation rate diminishes, resulting in the body retaining more warmth compared to dry conditions. Exceeding the body's heat disposal threshold results in a rise in body temperature and potential thermal disorders.
Humidity
In Lasso, Burkina Faso, the average relative humidity in September is 71%.Rainfall
In September, the rain falls for 15.3 days. Throughout September, 70mm (2.76") of precipitation is accumulated. Throughout the year, there are 96 rainfall days, and 407mm (16.02") of precipitation is accumulated.Daylight
In September, the average length of the day in Lasso is 12h and 11min.On the first day of September, sunrise is at 06:01 and sunset at 18:22. On the last day of the month, sunrise is at 06:01 and sunset at 18:02 GMT.
Sunshine
In September, the average sunshine is 9h.UV index
In September, the average daily maximum UV index is 7. A UV Index of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV rays for the ordinary person.Note: The maximum daily UV index, 7 in September, converts into the following recommendations:
Incorporate safeguards and honour sun safety principles. Protection from skin and eye damage is obligatory. Stay in the shade and limit direct sun exposure between 10 a.m. and 4 p.m., when UV radiation is at its strongest. Remember, however, that not all shade structures provide full sun protection. 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
How hot does it get in September?
What is the average humidity in September?
How much does it rain in September?
How many hours of daylight does Lasso have in September?
What time are sunrise and sunset in September?
How many hours of sunshine does Lasso have in September?
What is the UV index intensity in September?
Average temperature in September
Lasso, Burkina Faso
- Average high temperature in September: 32.9°C
The warmest month (with the highest average high temperature) is April (41.1°C).
The month with the lowest average high temperature is August (31.4°C).
- Average low temperature in September: 23.4°C
The month with the highest average low temperature is May (28.5°C).
The coldest month (with the lowest average low temperature) is January (18.3°C).
Average pressure in September
Lasso, Burkina Faso
- Average pressure in September: 1011.7mbar
The month with the highest atmospheric pressure is January (1012.1mbar).
The month with the lowest atmospheric pressure is April (1007.8mbar).
Average wind speed in September
Lasso, Burkina Faso
- Average wind speed in September: 7.1km/h
The windiest month (with the highest average wind speed) is January (11.4km/h).
The calmest month (with the lowest average wind speed) is September (7.1km/h).
Average humidity in September
Lasso, Burkina Faso
- Average humidity in September: 71%
The month with the highest relative humidity is August (75%).
The months with the lowest relative humidity are January and February (14%).
Average rainfall in September
Lasso, Burkina Faso
- Average rainfall in September: 70mm
The wettest month (with the highest rainfall) is August (142mm).
The driest months (with the least rainfall) are January and December (0mm).
Average rainfall days in September
Lasso, Burkina Faso
- Average rainfall days in September: 15.3 days
The month with the highest number of rainy days is August (24.3 days).
The month with the least rainy days is December (0.1 days).
Average daylight in September /
Average sunshine in September
Lasso, 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 24min).
- Average sunshine in September: 9h and 0min
The month with the most sunshine is May (Average sunshine: 12h and 0min).
The months with the least sunshine are October, November and December (Average sunshine: 7h and 36min).
Average sunshine days in September
Lasso, Burkina Faso
- Average sunshine days in September: 12 days
The months with the most sunshine days are January and December (30.8 days).
The month with the least sunshine days is August (4.8 days).
Average UV index in September
Lasso, Burkina Faso
- Average UV index in September: 7
The months with the highest UV index are March, April, May and June (UV index 8).
The month with the lowest UV index is December (UV index 6).
Average cloud cover in September
Lasso, Burkina Faso
- Average cloud cover in September: 27
The month with the most cloud cover is August (Cloud cover 41).
The months with the least cloud cover are January and December (Cloud cover 5).
Average visibility in September
Lasso, Burkina Faso
- Average visibility in September: 9km
The months with the highest visibility are January, February, March, April, May, June, July, October, November and December (10km).
The months with the lowest visibility are August and September (9km).
